Having Read-write Layer Of 100 Percent Organic Or Organometallic Composition Or Mixtures Thereof Patents (Class 430/270.14)
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Patent number: 11493854Abstract: A printing sheet is formed of a base material film, a toner fixing layer formed on one principal surface of the base material film, a planarization layer formed on the other principal surface of the base material film, an adhesive layer formed on the surface of the planarization layer, and a peeling film stuck on the surface of the adhesive layer. The base material film has a laminated structure composed of a white foamed PET film layer on the toner fixing layer side and a transparent non-foamed PET film layer on the adhesive layer side, and the strength of the printing sheet is improved by the combined use of the non-foamed PET film. The planarization layer is formed of a colored ink layer, e.g. white ink layer, and increases the bonding area of the adhesive layer with the base material film side, thereby achieving smooth peeling from an adherend.Type: GrantFiled: December 13, 2017Date of Patent: November 8, 2022Assignees: SHAKOU SHOUKAI CO., LTD., NALOT CO.. LTD.Inventors: Yoshizo Watanabe, Mitsuo Yamashita
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Patent number: 10557786Abstract: The present invention provides systems, devices, and methods for point-of-care and/or distributed testing services. The methods and devices of the invention are directed toward automatic detection of analytes in a bodily fluid. The components of the device can be modified to allow for more flexible and robust use with the disclosed methods for a variety of medical, laboratory, and other applications. The systems, devices, and methods of the present invention can allow for effective use of samples by improved sample preparation and analysis.Type: GrantFiled: May 19, 2016Date of Patent: February 11, 2020Assignee: Theranos IP Company, LLCInventors: Ian Gibbons, Anthony J. Nugent, Anthony Delacruz, Daniel Young, Elizabeth A. Holmes, Andrew Drake, Timothy Michael Kemp, Sunny Balwani, Chinmay Pangarkar
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Patent number: 10266732Abstract: An adhesive including a copolymer that includes repeating units of a first monomer and a second monomer, wherein: the first monomer includes a (meth)acrylate-based monomer, a silicon-based monomer, or an urethane-based monomer, the second monomer includes a light absorbing group, and the light absorbing group is an azo-based dye.Type: GrantFiled: May 31, 2017Date of Patent: April 23, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Youngdo Kim, Soyoun Jung
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Patent number: 9797661Abstract: A method for creating a sandwich panel heat pipe is disclosed. A three-dimensional ordered micro-truss core comprising a plurality of periodically disposed unit cells comprising an open-cellular microstructure and a free space defined by the open-cellular microstructure wherein the core comprises a vapor region and a liquid region separated by a mesh structure. A first face sheet and a second face sheet are stacked with the three-dimensional ordered micro-truss core to form a heat pipe assembly with the mesh structure in the three-dimensional ordered micro-truss core being planar and substantially parallel to the first face sheet and the second face sheet. The first and second face sheets are bonded to enclose the three-dimensional ordered micro-truss core wherein the free space of the three-dimensional ordered micro-truss core between the first and second face sheets is filled with a working fluid through an inlet and the inlet is sealed.Type: GrantFiled: September 30, 2013Date of Patent: October 24, 2017Assignee: HRL Laboratories, LLCInventors: Christopher S. Roper, Alan J. Jacobsen
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Patent number: 9082430Abstract: An optical information recording medium includes a substrate that has a recessed portion on a surface thereof, a recording layer, and a reflective layer. By combination of ranges of an optical density of the recording layer and a depth of the recessed portion of the substrate, degradation of reflectance is suppressed.Type: GrantFiled: April 18, 2013Date of Patent: July 14, 2015Assignee: SONY CORPORATIONInventors: Atsushi Takeuchi, Katsuya Owada
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Patent number: 8993085Abstract: A recordable optical recording medium is provided enabling the light transmission layer to be a single layer, the inhibition of peeling of the recording layer even when stored in high-temperature/high-moisture conditions, and the reduction of degradation of the recording/reproduction characteristics. A recordable optical recording medium provided with a substrate, and, on the substrate in the following order, a reflective layer, a recording layer, a protective layer, and a light transmission layer. The optical recording medium has the recording layer formed thereon using an organic dye obtained by adding a highly waterproof, low hydrophilic organic dye to a triazole-based azo metal complex dye.Type: GrantFiled: February 9, 2012Date of Patent: March 31, 2015Assignee: Taiyo Yuden Co., Ltd.Inventors: Takuo Kodaira, Isao Matsuda
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Patent number: 8993086Abstract: A recordable optical recording medium is provided enabling reliably preventing the deterioration of the recording characteristics, even when stored for a long period of time in an environment of high temperature and humidity. A recordable optical recording medium includes a substrate, and on the substrate, a reflective layer, a recording layer, a protective layer, a light transmission layer in a single layer structure having optical transparency, and a hard coat layer. The recording layer is formed by addition of an additive which functions as reducing agent to an azo metal complex dye having a triazole structure.Type: GrantFiled: February 9, 2012Date of Patent: March 31, 2015Assignee: Taiyo Yuden Co., Ltd.Inventors: Takuo Kodaira, Isao Matsuda, Eiji Yamada
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Patent number: 8945697Abstract: An optical recording medium is provided having a recording layer that absorbs light with a wavelength of 350 nm to 500 nm, the optical recording medium having good recording playback properties even when the ambient temperature changes, and allowing playback distortion to be controlled even when stored in a high temperature environment. A write-once type optical recording medium including: a substrate; a reflective layer that reflects light with a wavelength of 350 nm to 500 nm on the substrate; a recording layer that absorbs light with a wavelength of 350 nm to 500 nm; and a light transmission layer with a single-layer construction that transmits light with a wavelength of 350 nm to 500 nm, the light transmission layer having a modulus of elasticity at 75° C. that ranges from 50 MPa to less than 170 MPa.Type: GrantFiled: February 9, 2012Date of Patent: February 3, 2015Assignee: Taiyo Yuden Co., Ltd.Inventors: Fuyuki Miyazawa, Wakaaki Murai
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Patent number: 8747984Abstract: An object of the present invention is to provide a recordable optical recording medium whose characteristics do not deteriorate when recording is conducted in a high-temperature environment. The present invention provides a recordable optical recording medium comprising a substrate as well as at least a reflection layer, recording layer and light transmission layer provided on the substrate, wherein the recording layer of said optical recording medium contains (a) an azo metal complex dye and (b) ionic organic compound containing a heteroaromatic quaternary ammonium ion.Type: GrantFiled: January 23, 2013Date of Patent: June 10, 2014Assignee: Taiyo Yuden Co., Ltd.Inventors: Takuo Kodaira, Kazunobu Takeguchi
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Patent number: 8747983Abstract: An object of the present invention is to provide a recordable optical recording medium whose characteristics do not deteriorate when recording is conducted in a high-temperature environment. The present invention provides a recordable optical recording medium comprising a substrate as well as at least a reflection layer, recording layer, and light transmission layer provided on the substrate, wherein the recording layer of said optical recording medium contains (a) an azo metal complex dye and (b) another dye whose decomposition temperature is 240° C. to 360° C.Type: GrantFiled: January 23, 2013Date of Patent: June 10, 2014Assignee: Taiyo Yuden Co., Ltd.Inventors: Takuo Kodaira, Akihisa Endo, Kazunobu Takeguchi, Fuyuki Miyazawa, Shinichi Kojo
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Patent number: 8722167Abstract: Imaging layers, optical disks, and methods of preparation of each, are disclosed.Type: GrantFiled: June 25, 2008Date of Patent: May 13, 2014Assignee: Hewlett-Packard Development Company, L.P.Inventor: Mehrgan Khavari
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Patent number: 8715805Abstract: An object of the present invention is to provide a recordable recording medium that suppresses increase in terminal noise and does not generate a BCA signal read error. The present invention provides a recordable optical recording medium comprising a substrate as well as at least a reflection layer, recording layer and light transmission layer provided on the substrate, wherein the recording layer of said optical recording medium contains (a) an azo metal complex dye and (b) another dye whose DSC decomposition heat value is 50 cal/g to 200 cal/g and ?max in TFP solution is 250 to 400 nm.Type: GrantFiled: January 23, 2013Date of Patent: May 6, 2014Assignee: Taiyo Yuden Co., Ltd.Inventors: Isao Matsuda, Takaki Hamamoto, Takuo Kodaira
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Patent number: 8652607Abstract: Imaging layers, optical disks, and methods of preparation of each, are disclosed.Type: GrantFiled: June 25, 2008Date of Patent: February 18, 2014Assignee: Hewlett-Packard Development Company, L.P.Inventors: Paul Felice Reboa, Mehrgan Khavari, Susan E. Bailey
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Patent number: 8557361Abstract: An optical disc is described that bears, on one surface, a plurality of color-forming layers that can form a multicolored image when heated in contact with a thermal print head. The color-forming composition comprises color-forming layers and thermally-insulating spacers and is designed such that warping of the optical disc in conditions of changing temperature and humidity is minimized. The compliance of the color-forming composition is such that intimate contact between the thermal print head and the printable surface of the disc can be maintained as one is translated relative to the other. Methods for assembling such an optical disc are provided.Type: GrantFiled: February 3, 2011Date of Patent: October 15, 2013Assignee: Zink Imaging, Inc.Inventors: Yulin Hardin, Stephen Robert Herchen, Dana Frederic Schuh, William T. Vetterling, Michael Armour Young, Stephen J. Telfer, Chien Liu
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Patent number: 8541086Abstract: An optical information recording medium including a recording layer that can record a large amount of information is manufactured using a simple system. A single recording layer is formed by bonding two optically transparent substrates on which the first photosensitive polymer and the second photosensitive polymer are spread such that the layers of the photosensitive polymers face each other. Furthermore, since the absorptivity of light in the recording layer increases as the focal point of light for information recording moves in a depth direction, information can be recorded without decreasing the recording transfer rate of the information.Type: GrantFiled: October 22, 2008Date of Patent: September 24, 2013Assignee: Sony CorporationInventors: Mitsuaki Oyamada, Norihiro Tanabe
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Sheet for multilayer optical recording medium and multilayer optical recording medium using the same
Patent number: 8420199Abstract: Disclosed is a sheet for producing a multilayer optical recording medium having a repeating structure wherein a plurality of optical recording layers are laminated. The sheet for a multilayer optical recording medium has a structure having a unit wherein an optical recording layer and an adhesive layer are laminated, or a structure having a unit wherein an optical recording layer, a barrier layer and an adhesive layer are laminated in this order. The maximum height roughness (Rz) of the optical recording layer or the barrier layer is not more than 500 nm. A multilayer optical recording medium is produced by using the sheet for a multilayer optical recording medium. Also disclosed is a sheet for producing, with high precision, a high-quality multilayer optical recording medium having a repeating unit wherein a plurality of optical recording layers containing a multiphoton absorbing material are laminated. A multilayer optical recording medium is also produced by using this sheet.Type: GrantFiled: June 15, 2009Date of Patent: April 16, 2013Assignee: LINTEC CorporationInventors: Masaharu Ito, Shinichi Hoshi, Ryo Takahashi, Sou Miyata, Tomoo Orui, Takeshi Kondo -
Patent number: 8329347Abstract: A fuel cell system includes a water vapor transport device having a wet flow field layer having a coarse microtruss structure disposed between a pair of fine microtruss structures. The coarse and fine microtruss structures of the wet flow field layer are formed from a radiation-sensitive material. A dry flow field layer has a coarse microtruss structure disposed between a pair of fine microtruss structures. The coarse and fine microtruss structures of the dry flow field layer are also formed from a radiation-sensitive material. A membrane is disposed between the wet flow field layer and the dry flow field layer and adapted to permit a transfer of water vapor therethrough from the wet fluid to the dry fluid to form a humidified fluid.Type: GrantFiled: February 8, 2010Date of Patent: December 11, 2012Assignee: GM Global Technology Operations LLCInventors: Jeffrey A. Rock, Yeh-Hung Lai, Gerald W. Fly
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Patent number: 8323762Abstract: A method by which depressions and projections (pit pattern) can be formed directly and easily in a substrate made of inorganic material is provided. A method for forming a medium on which information is recorded in a pit pattern comprises the steps of: forming a recording material layer over a substrate made of inorganic material wherein the recording material layer is of a thermally deformable heat mode recording material; forming a plurality of holes by application of condensed light to the recording material layer; and forming a plurality of pits in the substrate wherein the plurality of pits corresponding to the plurality of holes are etched by using as a mask the recording material layer in which the plurality of holes are formed.Type: GrantFiled: May 16, 2008Date of Patent: December 4, 2012Assignee: Fujifilm CorporationInventors: Yoshihisa Usami, Tetsuya Watanabe
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Patent number: 8273437Abstract: A sheet material for a multilayer optical recording medium (10-a) which comprises an optical recording layer comprising a multiple-photon absorbing material (1), an adhesive layer (4) and a transfer layer of the energy beam curable type (3). The transfer layer of the energy beam curable type (3) is a layer for transferring the shape of a stamper having a shape having protrusions and depressions on the surface as recording pits and/or grooves. The transfer layer of the energy beam curable type (3) and the adhesive layer (4) are each disposed as outermost layers. A multilayer optical recording medium which has a repetitive structure comprising a plurality of laminated optical recording layers and exhibits excellent accuracy of thickness of each layer and the whole laminate can be produced with excellent productivity. Positional information can be contained at the inside of the optical recording medium.Type: GrantFiled: July 4, 2008Date of Patent: September 25, 2012Assignee: LINTEC CorporationInventor: Masahito Nakabayashi
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Patent number: 8192819Abstract: Disc-shaped information recording medium comprising optical penetrating substrate having colored underlayer and ink receipt layer in this order on the principal surface of one side of the substrate, wherein the ink receipt layer contains inorganic fine particles, a binder, and a crosslinking agent, and wherein a pore diameter distribution of a gap of the ink receipt layer has a maximum peak in the range of 30 nm or more when the ink receipt layer is measured with a mercury porosimetry method. Since the shrinkage force functioning in the pores of the gaps of the ink receipt layer weakens, a disc-shaped information recording medium having a reduced occurrence of warp is provided.Type: GrantFiled: December 3, 2008Date of Patent: June 5, 2012Assignee: Taiyo Yuden Co., Ltd.Inventors: Ippei Maekawa, Tomonori Endo, Mamoru Uchida, Yuki Takei, Yuaki Shin
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Patent number: 8129012Abstract: The present invention relates to a write-once optical record carrier for high speed recording, in particular to a DVD+R disc. Such a record carrier comprises in general at least a substrate layer (3), a recording layer (2) of an organic dye material on top of the substrate layer (3) and a metal reflective layer (1) on top of the recording layer (2). In order to obtain a less steep temperature gradient at the interface between the recording layer (2) and the reflective layer (1) and thus to prevent mechanical stress leading to a delamination problem it is proposed to reduce the thickness of the metal reflective layer (1) to a range below 75 nm. A dielectric layer of a thickness below 50 nm between the recording layer (2) and the metal reflective layer (1) is also enclosed.Type: GrantFiled: April 28, 2004Date of Patent: March 6, 2012Assignee: Koninklijke Philips Electronics N.V.Inventors: Hubert Céçile François Martens, Benno Tieke
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Patent number: 8119217Abstract: The instant disclosure relates to an ink jet printable optical recording medium including a substrate having opposing surfaces, namely a recording surface and a printing surface. The printing surface of the substrate is coated with an adhesion promotion layer which includes polyurethane, a high surface area inorganic pigment having a surface area of at least 100 m2/g, and a low surface area inorganic pigment having a surface area of at most 50 m2/g. The adhesion promotion layer is coated with an ink receptive coating.Type: GrantFiled: February 24, 2009Date of Patent: February 21, 2012Assignee: Hewlett-Packard Development Company, L.P.Inventors: Yongzhong Wang, Hai Quang Tran, Jessica Huien Liao
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Patent number: 8114496Abstract: Provided is an extremely high-density optical recording medium with excellent jitter characteristics and good recording/reproducing characteristics. An optical recording medium 20 comprises a substrate 21 with a guide groove formed therein, a layer 23 with a light reflection function, a recording layer 22 comprising a dye as a main component with a light absorption function for a wavelength of recording/reproducing light in an unrecorded state, and a cover layer 24 capable of transmitting the recording/reproducing light incident to the recording layer 22, in the order mentioned; an interlayer 30 containing at least one element selected from the group consisting of Ta, Nb, V, W, Mo, Cr and Ti, is provided between the layer 23 with the light reflection function and the recording layer 22.Type: GrantFiled: January 11, 2007Date of Patent: February 14, 2012Assignee: Mitsubishi Kagaku Media Co., Ltd.Inventors: Michikazu Horie, Kenjirou Kiyono, Masae Kubo
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Patent number: 8105750Abstract: Recording and reproducing characteristics and data saving reliability are secured in a write-once two-layer recording medium. A second recording layer from a side irradiated with light for recording and reproduction includes organic dye shown by a general formula of a chemical formula 3 described below (in the formula, R1 and R2 are alkyl groups of carbon number 1 to 4; Y1, Y2 respectively are organic groups independently; and X is Cl04, BF4, PF6, SbF6), and organic dye shown by a general formula of a chemical formula 4 described below (in the formula, R1, R4 are alkyl groups of carbon number 1 to 4; R2, R3 are alkyl groups of carbon number 1 to 4 or groups forming 3 to 6 membered rings by being coupled; Y1, Y2 respectively are organic groups independently; and X is Cl04, BF4, PF6, SbF6), to secure durability.Type: GrantFiled: January 26, 2007Date of Patent: January 31, 2012Assignees: Sony Corporation, Adeka CorporationInventors: Yutaka Wada, Masatsugu Suwabe, Toru Yano, Koichi Shigeno
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Patent number: 8029976Abstract: Disclosed is to provide with an optical recording medium of a write-once type in which an excellent recording characteristic can be obtained over low speed recording to high speed recording.Type: GrantFiled: October 24, 2005Date of Patent: October 4, 2011Assignees: Sony Corporation, Adeka CorporationInventors: Yutaka Wada, Masatsugu Suwabe, Junko Shimada, Toru Yano, Keiji Oya, Koichi Shigeno
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Patent number: 8025947Abstract: An optical information recording medium has a substrate, and an optical reflection layer, an optical recording layer containing an organic dye, an interlayer, and a cover layer formed in this order on the substrate. The interlayer contains a sputtered Nb2O5—Al2O3-based composite oxide having an Nb2O5 content of more than 50 mol % and less than 60 mol %.Type: GrantFiled: October 1, 2008Date of Patent: September 27, 2011Assignee: Taiyo Yuden Co., LtdInventors: Fumi Hara, Takeshi Otsu, Isao Matsuda, Shingo Katoh, Masashi Satoh
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Patent number: 8026021Abstract: The present invention is directed to a film forming, photoactive, homogeneously mixed material comprising a complex prepared from (a) at least one ionic photosensitive compound which may undergo a photoreaction, selected from photoisomerizations, photocycloadditions and photoinduced rearrangements, and/or (a?) at least one photosensitive polyelectrolyte (“second polyelectrolyte”) carrying residues which may undergo said photoreaction, and (b) at least one (“first”) polyelectrolyte carrying charges which are opposite to those of the active groups of the photosensitive material. This material has unique photochemical properties in that non-scattering, optically clear films may prepared therefrom which allow light-induced generation of optical anisotropy and of topological surface structures, e.g. such as surface relief gratings (SRG).Type: GrantFiled: August 30, 2005Date of Patent: September 27, 2011Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Joachim Stumpe, Leonid Goldenberg, Olga Kulikovska
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Patent number: 8007982Abstract: An optical information recording medium, which is made of a resin provided with photoreactivity containing organometal compound, has a recording layer on which, after a photoreaction are brought about when predetermined initialization light is irradiated to the medium and then the resin is hardened, at a time of recording information, a recording mark is formed when predetermined recording light is condensed to the medium, and a temperature of the medium near a focal point of the recording light is increased and the organometal compound is transubstantiated, and at a time of reproducing information, the information is reproduced based on returned light according to predetermined reading light being irradiated.Type: GrantFiled: November 15, 2007Date of Patent: August 30, 2011Assignee: Sony CorporationInventors: Hiroshi Uchiyama, Hisayuki Yamatsu, Norihiro Tanabe
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Patent number: 7981494Abstract: In a write-once optical information recording medium including a substrate, a groove-shaped track such as a guiding groove, and an optical recording layer containing an organic dye material and disposed on the guiding groove, wherein information is recorded by irradiating a short-wavelength laser beam from a surface of the optical recording layer opposite the substrate, and the information can be reproduced by reading a change in the reflected light of a short-wavelength laser beam after the information recording, an unrecorded portion of the optical recording layer has a lower reflectance than a pit portion formed after recording to a portion of the optical recording layer, the optical recording layer has a refractive index n in the range of about 1.2 to about 2.1 before recording and an extinction coefficient k in the range of about 0.01 to about 0.7 before recording, and n+k is in the range of about 1.4 to about 2.1.Type: GrantFiled: March 19, 2008Date of Patent: July 19, 2011Assignee: Taiyo Yuden Co., Ltd.Inventors: Takuo Kodaira, Isao Matsuda, Takeshi Otsu, Fumi Hara
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Patent number: 7982000Abstract: The present invention provides a solid material comprising an immobilized mixture of two or more proteorhodopsins, two or more bacteriorhodopsins, or one or more bacteriorhodopsin and one or more proteorhodopsins. The proteorhodopsins are selected from the group consisting of all-trans-retinal-containing proteorhodopsins and retinal analog-containing proteorhodopsins; all of which have absorption spectra that do not overlap. The bacteriorhodopsins are selected from the group consisting of all-trans-retinal-containing bacteriorhodopsins and retinal analog-containing bacteriorhodopsins; all of which have absorption spectra that do not overlap. The present invention also provides an optical information carrier, such as an optical data storage material and a fraud-proof optical data carrier, comprising the above-described solid material and a substrate selected from the group consisting of glass, paper, metal, fabric material, and plastic material, wherein said solid material is deposited on said substrate.Type: GrantFiled: June 9, 2005Date of Patent: July 19, 2011Assignee: Danisco US Inc.Inventors: Richard R. Bott, Rasmus B. Jensen, Bradley R. Kelemen, Donald E. Ward, II, Gregory M. Whited
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Patent number: 7964260Abstract: The present invention is aimed to provide a high-performance single-sided double-layer optical recording medium with reduced crosstalk between recording marks, wherein favorable recording signal properties are obtained even from the second recording layer located more distant from the substrate to which the light is applied, and reproducing method thereof, and an optical recording and reproducing apparatus. The optical recording medium possesses the following aspects: the optical recording medium comprises a first substrate, a first information layer, an intermediate layer, a second information layer and a second substrate in this order; the first information layer comprises a first recording layer; the second information layer comprises a second reflective layer, a second recording layer with an organic dye and a protective layer; and the pyrolysis temperature range, the DTA peak width of the thermal analysis on the organic dye in the second recording layer, is 45° C. or less.Type: GrantFiled: November 7, 2005Date of Patent: June 21, 2011Assignee: Ricoh Company, Ltd.Inventor: Tohru Yashiro
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Patent number: 7910192Abstract: The invention is principally to provide an archival optical recording medium of high quality which has satisfactory recording/reading characteristics when used in high-speed recording and high-density recording. The invention accomplishes the object with an optical recording medium comprising a resin substrate, a recording layer comprising an organic dye, and a reflective layer, wherein the reflective layer has a first reflective layer and a second reflective layer in this order from the side close to the recording layer, the second reflective layer has a thermal conductivity lower than the thermal conductivity of the first reflective layer, and the first reflective layer has a film thickness larger than the thickness of the second reflective layer.Type: GrantFiled: November 24, 2009Date of Patent: March 22, 2011Assignee: Mitsubishi Kagaku Media Co., Ltd.Inventors: Mitsugu Wakabayashi, Hideharu Takeshima, Susumu Satou, Naoyuki Uchida, Katsumi Ebashi
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Patent number: 7892619Abstract: A coating composition for optical recording includes a uniform dispersion of polymer particles in a liquid, a quantity of dye particles uniformly dispersed in the liquid, the dye particles being soluble in the polymer but substantially insoluble in the liquid, and a quantity of radiation absorber material adapted to absorb radiation at a wavelength of a laser for optical recording of an image.Type: GrantFiled: December 16, 2006Date of Patent: February 22, 2011Assignee: Hewlett-Packard Development Company, L.P.Inventors: Vladek P. Kasperchik, Michael J. Day, Jayprakash C. Bhatt
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Patent number: 7867595Abstract: An optical information recording medium is provided having a superior jitter property even when an organic substance is used for a recording layer. The optical information recording medium has a substrate having a penetrating hole in a central portion thereof and a spiral pre-groove provided in one surface of the substrate, a reflection layer provided on the surface of the substrate in which the pre-groove is provided, a recording layer which is provided on the reflection layer and which is composed of an organic substance including a dye, and a light transmissive cover layer provided on the recording layer. In the optical information recording medium, the cover layer has an elastic modulus of 40 MPa or less at 25° C. in an interface region facing the recording layer.Type: GrantFiled: November 14, 2007Date of Patent: January 11, 2011Assignee: Taiyo Yuden Co., Ltd.Inventors: Takeshi Otsu, Akimasa Miyata, Motomitsu Hagiwara, Isao Matsuda, Fumi Hara, Shingo Kato, Takuo Kodaira
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Patent number: 7829167Abstract: A disc having a relief pattern and a transprint method thereof are provided. The transprint method for transprinting the relief pattern on a substrate of the disc includes the following steps. First, a transprint template is provided. A first surface of the transprint template has a complementary pattern corresponding to the relief pattern. Next, a pattern layer is formed on the substrate. Then, the transprint template is placed on and covers the pattern layer until the first surface of the transprint template closely contacts a second surface of the pattern layer, so that the relief pattern is formed on the second surface. Afterward, the pattern layer is cured by irradiation. Later, the transprint template is removed for exposing the second surface with the relief pattern.Type: GrantFiled: October 31, 2007Date of Patent: November 9, 2010Assignee: Benq Materials Corp.Inventor: Chih-Hsun Lin
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Patent number: 7815990Abstract: The optical recording medium according to the present invention comprises a transparent substrate, a recording layer, an optical reflective layer, and a protective layer, wherein the last three layers mentioned are formed on the substrate in this sequence, and enables recoding at a recording linear velocity of 27.9 m/s or more. The optical reflective layer is characterized in that the layer comprises any one of Ag and an alloy mainly made from Ag and a x-ray diffraction spectrum of the optical reflective layer satisfies the relational expression of 0.2<I (200)/I (111)<0.4, in which I (111) is an intensity of the x-ray diffraction peak from (111) plane and I (200) is an intensity of the x-ray diffraction peak from (200) plane determined by x-ray diffraction based on ??2? method when the incidence angle relative to the surface of the optically transparent substrate being ?.Type: GrantFiled: March 14, 2005Date of Patent: October 19, 2010Assignee: Ricoh Company, Ltd.Inventor: Tomomi Ishimi
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Patent number: 7767284Abstract: The object of the present invention is to provide an optical recording medium which comprises a substrate, and a first information layer and a second information layer disposed on the substrate, and an intermediate layer disposed between the first information layer and the second information layer, wherein any one of recording and reproducing is performed in the first information layer and the second information layer by irradiating a laser beam from the first information layer side, the second information layer comprises a protective layer, a second dye layer which comprises an organic dye, an oxidized layer, and a reflective layer in this order from the laser beam irradiation side, and the oxidized layer comprises an oxide which is a material constituting the reflective layer.Type: GrantFiled: April 25, 2005Date of Patent: August 3, 2010Assignee: Ricoh Company, Ltd.Inventors: Michiaki Shinotsuka, Masaru Shinkai, Hiroyuki Iwasa, Tatsuo Mikami, Yuki Nakamura, Tohru Yashiro
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Patent number: 7758944Abstract: Improved structures of optical medium are disclosed. According to one embodiment, multiple reflective layers are used. These reflective layers are in different materials. At least one of the reflective layers allowing a significant amount of a laser beam to transmit is used to protect another reflective layer with superior reflectivity from moisture on one side. An additional reflective layer may also be used to protect the high reflective layer from moisture on the other side.Type: GrantFiled: August 8, 2006Date of Patent: July 20, 2010Assignees: Dongguan Anwell Digital Machinery Co., Ltd., Anwell Precision Technology (HK) LimitedInventors: Kai Leung Fan, Ming Sang Yeung
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Patent number: 7745066Abstract: The present invention relates to materials comprising hydrophilic polymers and immobilized proteorhodopsin and the use of such materials as an optical information carrier. The material comprises one or more hydrophilic polymers that are capable to form a homogeneous phase with proteorhodopsin prior to solidification to a solid form. The hydrophilic polymer, for example, is silica sol-gel, gelatin, polyvinylalcohol, agarose, agar, methyl cellulose, polyvinyl acetate, polyvinyl pyrrolidone, polyethylene glycol, or a mixture thereof. The solid material having immobilized proteorhodopsin is deposited on a substrate selected from the group consisting of glass, paper, metal, fabric material, plastic material, and used as an optical data storage material or a fraud-proof carrier. The present invention further provides a security ink comprising proteorhodopsin and one or more hydrophilic polymers.Type: GrantFiled: May 1, 2008Date of Patent: June 29, 2010Assignee: Danisco US Inc,Inventors: Rasmus B. Jensen, Bradley R. Kelemen, Joseph C. McAuliffe, Wyatt Charles Smith
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Patent number: 7722941Abstract: An optical data store is specified, having a data storage layer with a non-toxic and biodegradable polymer as light-sensitive storage medium which has photo-inducible anisotropy, for the induction of which a threshold value of the optical intensity has to be exceeded. The light-sensitive material is preferably bacteriorhodopsin which, by way of example, is immobilized in a manner embedded in a suitable matrix material or, if appropriate, in a crosslinked manner. The storage medium permits a high storage density and can be applied in a simple manner, for instance by printing onto a substrate.Type: GrantFiled: December 20, 2002Date of Patent: May 25, 2010Assignee: Actilor GmbHInventor: Norbert Hampp
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Patent number: 7674568Abstract: The present invention relates to a new solvent composition useful in the process of manufacturing an optical recording medium. The invention provides a new liquid composition comprising from 0.1 to 20% by weight of a dye having a solid state absorption band maximum in the spectral region from 300 to 800 nm, from 0.5 to 99.9% by weight of a compound of formula (I), wherein R1 to R8 are H, CH3 or C2H5, with the proviso that the total number of carbon atoms in R1 to R8 is 0, 1 or 2, and optionally from 0 to 99.4% by weight of one or more further components, all based on the weight of the solution. The instant solvent composition enables to manufacture an optical recording medium of a single recording layer type capable of recording and playing a large volume of information using commercially available compact disc recorders and players and of superior performance in an amazing wide range of drive speeds.Type: GrantFiled: January 21, 2003Date of Patent: March 9, 2010Assignee: Ciba Specialty Chemicals CorporationInventors: Bruce Milner, Jitka Brynjolffssen, Timothy Parks, Wolfgang Freitag
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Patent number: 7670659Abstract: Substrates, coatings and methods for marking substrates using the coatings. The substrate contains a coating of encapsulated marking materials. Capsules of the encapsulated marking materials are designed to preferentially absorb a predetermined wavelength of light or range of wavelengths of light. The capsules contain color chemistry capable of activation by the predetermined wavelength of light or range of wavelengths of light for the generation of a color response. By utilizing capsules of differing color chemistries, such substrates are capable of multi-color image generation.Type: GrantFiled: April 11, 2005Date of Patent: March 2, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: David M Kwasny, Makarand P. Gore, Andrew L. Van Brocklin, William Dorogy
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Optical information recording medium, recording/reproducing method, and recording/reproducing device
Patent number: 7651832Abstract: The subject invention achieves further improvement in recording density for an optical information recording medium using a medium super-resolution effect with a super-resolution film, by reduction of the effective spot diameter in a further effective way. According to the optical information recording medium of the present invention, information is recorded on a recording surface of a substrate 5 in the form of phase pits. On the recording surface, an information layer 4, composed of a reflection film 6, a light-absorbing film 3 and a temperature-responsive film 2, is formed. The temperature-responsive film 2 is made of a ZnO film, which is an inorganic super-resolution film whose complex refractive index changes according to intensity of incident light, the film is also superior in a light transmittance property. The light-absorbing film 3 is made of an Si film 3, which absorbs a part of the incident light so that the temperature of the information layer 4 increases.Type: GrantFiled: March 17, 2005Date of Patent: January 26, 2010Assignee: Sharp Kabushiki KaishaInventors: Nobuyuki Takamori, Go Mori, Hideharu Tajima, Masaki Yamamoto -
Patent number: 7611823Abstract: Image formation via photoinduced fluorescence changes in a polymeric medium with two-photon fluorescence readout of a multi-layer structure. Fluorophore-containing polymers, possessing one or more basic functional groups, underwent protonation in the presence of a photoinduced acid generator upon exposure to a broad-band UV light source or fast-pulsed red to near-IR laser irradiation. Solution studies demonstrated formation of monoprotonated and diprotonated species upon irradiation, each resulting in distinctly different absorption and fluorescence properties. The fluorescence of the original, neutral, fluorophore was reduced upon monoprotonation leading to a concomitant increase in fluorescence at longer wavelengths due to the monoprotonated form, the basis for multichannel data readout.Type: GrantFiled: November 10, 2005Date of Patent: November 3, 2009Assignee: University of Central Florida Research Foundation, Inc.Inventor: Kevin D. Belfield
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Patent number: 7598018Abstract: Image formation via photoinduced fluorescence changes in a polymeric medium with two-photon fluorescence readout of a multi-layer structure. Fluorophore-containing polymers, possessing one or more basic functional groups, underwent protonation in the presence of a photoinduced acid generator upon exposure to a broad-band UV light source or fast-pulsed red to near-IR laser irradiation. Solution studies demonstrated formation of monoprotonated and diprotonated species upon irradiation, each resulting in distinctly different absorption and fluorescence properties. The fluorescence of the original, neutral, fluorophore was reduced upon monoprotonation, leading to a concomitant increase in fluorescence at longer wavelengths due to the monoprotonated form, the basis for multichannel data readout.Type: GrantFiled: February 16, 2007Date of Patent: October 6, 2009Assignee: University of Central Florida Research Foundation, Inc.Inventor: Kevin D. Belfield
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Publication number: 20090104561Abstract: An optical recording material and methods of making such material is provided. The material comprises of a dewar benzene monomer, with at least two cross-linkable groups, a sensitizer, a cross-linker, and an initiator. The material does not require a binder or a co-sensitizer. The material can be fabricated by an exceedingly easy technique that offers high photosensitivity, high diffraction efficiency, millimeter thickness, and high dynamic range.Type: ApplicationFiled: September 23, 2008Publication date: April 23, 2009Inventors: Craig J. Hawker, Galen D. Stucky, Alexander Mikhailovsky, Anzar Khan
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Patent number: 7501171Abstract: An optical information recording medium has light interference layers including a recording layer on a substrate. The recording layer includes an organic dye and a photostabilizer which is, for example, the compound of formula 1 wherein at least one of R1 to R8 represents a substituted alkyl group having a terminal cyano group, with the others represent other substituents; Y represents a monovalent or divalent cation; and Xm? represents a monovalent or divalent anion.Type: GrantFiled: June 23, 2005Date of Patent: March 10, 2009Assignee: Taiyo Yuden Co., Ltd.Inventors: Mamoru Uchida, Isao Okitsu, Takuo Kodaira, Toru Fujii
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Patent number: 7427432Abstract: A dual-layer optical recording medium, which is formed by adhering a disk substrate (inverted-stack structure) formed by stacking a reflective layer (1) and a recording layer (1) on a substrate (1) and a disk substrate (conventional-stack structure) formed by sequentially stacking a recording layer (2) and a reflective layer (2) on a transparent substrate (2) with a transparent resin layer interposed therebetween, is prepared such that the transparent resin layer has a product obtained by multiplying the thickness by the elastic modulus at 25±5° C. falling within the range of not less than 2.0×104 MPa·?m to not more than 30.0×104 MPa·?m, resulting in suppressing excessive deformation involving an adjacent track portion produced by recording optical information in the recording layer (1) of the inverted-stack structure, thereby reducing crosstalk and providing satisfactory recording and/or reading characteristics in high-speed recording applications.Type: GrantFiled: April 28, 2006Date of Patent: September 23, 2008Assignee: Mitsubishi Kagaku Media Co., Ltd.Inventor: Shigeyuki Furomoto
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Publication number: 20080220339Abstract: This invention relates to a self supporting or substrate-supported film or layer of a photosensitive material comprising a water insoluble complex having one of the following sum formulae (I) to (IV) n [R—P—R?]ms+ m [T]n?? (I) or m [T]n?+ n [R—P—R?]m?? (II) n[R1—Q—R1?]m?+ m [T]n?? (III) or an [T]n?+ n [R1—Q—R1?]m?? (IV) wherein [R—P—R?] and [R1—Q—R1?], respectively, are photosensitive tectonic units the photosensitive part of which may undergo a photoreaction, selected from photoisomerizations, photocycloadditions and photoinduced rearrangements, and wherein P is a group capable of photoisomerization, Q is a group capable of participating in a photocycloaddition or photoinduced rearrangement reaction, or in a photooxidation reaction, at least one of R and R? is selected from optionally substituted or functionalized aromatic, preferably aryl-containing groups, and at least one of R and R? is positively or negatively charged, with the proviso that if P is —N?N—, R and R? both are independently selected from optType: ApplicationFiled: May 4, 2006Publication date: September 11, 2008Applicant: Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.Inventors: Yuriy Zakrevskyy, Charl Faul, Joachim Stumpe
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Publication number: 20080193858Abstract: The present invention provides a polymerizable compound denoted by general formula (1). In general formula (1), A denotes an oxygen atom, sulfur atom, or NR, R denotes a hydrogen atom, alkyl group, aryl group, or heterocyclic group, X denotes a hydrogen atom, polymerizable group, optionally polymerizable group-substituted alkyl group or the like, B and C each independently denote a hydrogen atom, halogen atom, polymerizable group, optionally polymerizable group-substituted alkyl group or the like, wherein at least one from among B and C denotes a hydrogen atom and at least one from among X, Y, and Z comprises a polymerizable group, m denotes an integer ranging from 0 to 5, n denotes an integer ranging from 0 to 2, and Q denotes an elimination group.Type: ApplicationFiled: February 8, 2008Publication date: August 14, 2008Inventors: Hiroyuki SUZUKI, Satoru Yamada