Specified Material Patents (Class 369/288)
  • Patent number: 9880100
    Abstract: An electronic field enhancement element includes: a metal layer; a dielectric layer provided on the metal layer; and a plurality of fine metal structures provided on the dielectric layer. A refractive index n of the dielectric layer satisfies n?=n+i? and is in a range of 1?n<1.46, wherein a complex refractive index of the dielectric layer is n?, an imaginary unit is i, and an extinction coefficient is ?.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: January 30, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Mamoru Sugimoto, Megumi Enari, Tetsuo Mano
  • Patent number: 9700867
    Abstract: A method for chemically destroying magnetic data carriers. Recorded data are irretrievably eliminated and cannot be re-read. The carriers include aluminium or its alloys and ferromagnetic materials. They undergo a digestion reaction with an aqueous solution of a digesting mixture including: a) hydrochloric acid and (V)nitrate of one or more alkali metals, alkaline earth metals, rare earth metals and ammonium; or b) nitric(V) acid and chloride of one or more alkali metals, alkaline earth metals, rare earth metals and ammonium. The product of the reaction is an aqueous solution having aluminium hydroxide and chlorides and (V)nitrates of metals contained in the ferromagnetic metals and gaseous products of the reaction. Acidic salt solutions are utilized in a sewage treatment plant. Gaseous products including hydrogen and nitrogen oxides, after diluting with nitrogen, are directed to the atmosphere through an absorption system.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: July 11, 2017
    Assignee: BOSSG & EIT + TECHNOLOGIES SPOLKA Z OGRANICZONA ODPOWIEDZIALNOSCIA
    Inventors: Waldemar Maliszewski, Kazimierz Szyszka, Janusz Iwaniec
  • Patent number: 9581732
    Abstract: An optical component includes a base material and an antireflection film containing silica particles, wherein the porosity of the antireflection film is 15% by volume or more and 36% by volume or less. The number-based average particle diameter of the silica particles is preferably 0.5 nm or more and 4.0 nm or less. The antireflection film is preferably formed by using a composition containing the silica particles and a dispersion medium for dispersing the silica particles. The thickness of the antireflection film is preferably 50 nm or more and 120 nm or less.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: February 28, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Daiki Furusato, Katsumi Suzuki
  • Patent number: 9211053
    Abstract: A medical apparatus is detachably connected with a disposable medical device to be inserted into a subject, and performs a specified treatment. The medical apparatus includes an alteration unit that performs an alteration process of altering the medical device, and a control unit that causes the alteration unit to perform the alteration process at the end of the treatment by the medical apparatus.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: December 15, 2015
    Assignee: OLYMPUS CORPORATION
    Inventors: Kenji Kamimura, Yoshimine Kobayashi, Seiki Toriyama
  • Publication number: 20150067707
    Abstract: The present disclosure provides systems and methods associated with data storage using atomic films, such as graphene, boron nitride, or silicene. A platter assembly may include at least one platter that has one or more substantially planar surfaces. One or more layers of a monolayer atomic film, such as graphene, may be positioned on a planar surface. Data may be stored on the atomic film using one or more vacancies, dopants, defects, and/or functionalized groups (presence or lack thereof) to represent one of a plurality of states in a multi-state data representation model, such as a binary, a ternary, or another base N data storage model. A read module may detect the vacancies, dopants, and/or functionalized groups (or a topographical feature resulting therefrom) to read the data stored on the atomic film.
    Type: Application
    Filed: August 29, 2013
    Publication date: March 5, 2015
    Inventors: Hon Wah Chin, Howard Lee Davidson, Roderick A. Hyde, Jordin T. Kare, Nicholas F. Pasch, Robert C. Petroski, David B. Tuckerman, Lowell L. Wood, JR.
  • Patent number: 8897116
    Abstract: The present disclosure provides systems and methods associated with data storage using atomic films, such as graphene, boron nitride, or silicene. A platter assembly may include at least one platter that has one or more substantially planar surfaces. One or more layers of a monolayer atomic film, such as graphene, may be positioned on a planar surface. Data may be stored on the atomic film using one or more vacancies, dopants, defects, and/or functionalized groups (presence or lack thereof) to represent one of a plurality of states in a multi-state data representation model, such as a binary, a ternary, or another base N data storage model. A read module may detect the vacancies, dopants, and/or functionalized groups (or a topographical feature resulting therefrom) to read the data stored on the atomic film.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: November 25, 2014
    Assignee: Elwha LLC
    Inventors: Hon Wah Chin, Howard Lee Davidson, Roderick A. Hyde, Jordin T. Kare, Nicholas F. Pasch, Robert C. Petroski, David B. Tuckerman, Lowell L. Wood, Jr.
  • Patent number: 8891344
    Abstract: The invention combines several techniques applying high-resolution photosensitive emulsions for the long-term, archival storage of data, images and text. Data is stored as vertical interference patterns of multiple frequencies in a photographic emulsion. Read-out of the stored data uses a precision mechanism to locate and decode stored data.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: November 18, 2014
    Inventors: Eric Dean Rosenthal, Richard Jay Solomon, Clark Eugene Johnson
  • Patent number: 8885451
    Abstract: A recording medium (10) is provided with a left-handed material layer (1) having at least one of a permittivity and a permeability of a negative value, and having substantially periodically formed structures; and a recording layer (2) including island-shaped and substantially periodically arranged recording regions (22), and being laminated on the left-handed material layer (1). The structure period of the left-handed material layer (1) is equal to or is an integral multiple of the arrangement period of the recording regions (22) of the recording layer (2).
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: November 11, 2014
    Assignee: Panasonic Corporation
    Inventors: Norihito Fujinoki, Shigeru Furumiya, Teruhiro Shiono
  • Patent number: 8758980
    Abstract: An optical information recording medium 1 is constructed by sequentially layering a reflective layer 11, a protective layer 12, a recording layer 13, a protective layer 14, and a light transmissive protective layer 15 on a substrate 10. As the recording layer 13, a recording layer containing ZnS, SiO2, and Sb as principal components, or preferably, a recording layer expressed by a compositional formula [(ZnS)x(SiO2)1-x]y(SbzX1-z)1-y (where 0<x?1.0, 0.3?y?0.7, and 0.8<z?1.0 are met and X denotes at least one element selected from a group of Ga, Te, V, Si, Zn, Ta, and Tb) is adopted.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: June 24, 2014
    Assignee: Sony Corporation
    Inventors: Manami Miyawaki, Yuji Kuroda
  • Patent number: 8703388
    Abstract: Optical data storage media for bit-wise recording of a microhologram using an incident radiation at a wavelength of about 405 nm are provided. The optical storage medium includes (a) a non-photopolymer polymer matrix; (b) a non-linear sensitizer comprising a phenylethynyl platinum complex, wherein the non-linear sensitizer is capable of triplet-triplet energy transfer from an upper triplet state (Tn) of the non-linear sensitizer to a lower triplet state (T1) of a reactant, wherein “n” is an integer greater than 1; and (c) a reactant capable of undergoing a chemical change upon the triplet-triplet energy transfer from the non-linear sensitizer, thereby causing a refractive index change in the medium to record the microhologram.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: April 22, 2014
    Assignee: General Electric Company
    Inventors: Arunkumar Natarajan, Riffard Pierre Jean-Gilles, Kwok Pong Chan, Robert James Perry, Victor Petrovich Ostroverkhov, Evgenia Mikhailovna Kim, Julia Lam Lee, Eugene Pauling Boden, Patrick Joseph McCloskey, Brian Lee Lawrence
  • Patent number: 8670296
    Abstract: An optical information recording medium includes: a recording layer 12 comprising a multi-photon absorption compound and a one-photon absorption compound; and a supporting member (base layer 11) configured to support the recording layer 12. In this optical information recording medium, absorption of multiple photons by the multi-photon absorption compound and absorption of one photon by the one-photon absorption compound cause a void to be generated in the recording layer, whereby information is recordable by modulation based on a presence or absence of a void.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: March 11, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Hidehiro Mochizuki, Toshio Sasaki, Toshiyuki Kitahara
  • Patent number: 8599652
    Abstract: A thermally-assisted magnetic recording (TAMR) medium of the present invention includes: a magnetization direction arrangement layer on a substrate; and a magnetic recording layer on the magnetization direction arrangement layer, wherein the magnetization direction arrangement layer is made of at least one selected from a group consisting of Co, Zr, CoZr, CoTaZr, CoFeTaZrCr, CoNbZr, CoNiZr, FeCoZrBCu, NiFe, FeCo, FeAlN, (FeCo)N, FeAlSi, and FeTaC so that a spreading of the heating spot applied from the magnetic head for thermally-assisted recording to the film surface of the magnetic recording medium is suppressed, and that an SN is improved by arranging the magnetization direction of the perpendicularly written recording magnetization to become identical to a perpendicular direction, and realizing the higher recording density.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: December 3, 2013
    Assignee: TDK Corporation
    Inventors: Satoshi Tomikawa, Tomohito Mizuno
  • Patent number: 8582416
    Abstract: The heat-assisted magnetic recording medium of the present invention has a substrate, an under layer formed on the substrate, and a magnetic layer formed on the under layer, in which the magnetic layer includes an alloy having a L10 structure as a principle component, and the under layer is constituted by a first under layer made of an amorphous alloy or an alloy having a microcrystalline structure, a second under layer made of Cr or an alloy which contains Cr as a principle component and has a BCC structure, a third under layer made of a metal or an alloy having a BCC structure with a lattice constant of 2.98 ? or more, and a fourth under layer made of MgO.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: November 12, 2013
    Assignee: Showa Denko K.K.
    Inventors: Tetsuya Kanbe, Atsushi Hashimoto, Takayuki Fukushima
  • Patent number: 8568957
    Abstract: Optical information media having a support substrate and an inorganic nanomaterial data layer are disclosed. The data layer provides enhanced stability and optical performance as compared to conventional data layers.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: October 29, 2013
    Assignee: Brigham Young University
    Inventors: Christopher J. Buntel, Robert C. Davis, Douglas P. Hansen, Matthew R. Linford, Barry M. Lunt
  • Patent number: 8542569
    Abstract: A heat-assisted magnetic recording medium includes a substrate, a plurality of foundation layers, and a magnetic layer. The plurality of foundation layers are provided on the substrate and include a first layer containing MnO. The magnetic layer is provided on the plurality of layers and includes an alloy as a main ingredient. The alloy has an L10 structure.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: September 24, 2013
    Assignee: Showa Denko K.K.
    Inventors: Tetsuya Kanbe, Kazuya Niwa, Katsuya Hara
  • Patent number: 8537654
    Abstract: In an optical disk including at least a rewritable phase change material and comprising a recording layer having a reflectivity of more than 15%, an address output value as an address pit signal component occupying in a reproduced signal in a non recording state is prescribed to be 0.18 though 0.27 or a numerical aperture of an address pit signal occupying in a reproduced signal in a non recording state is prescribed to be more than 0.3.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: September 17, 2013
    Assignee: JVC Kenwood Corporation
    Inventors: Tetsuya Kondo, Eiji Nakagawa, Hirofumi Nagano
  • Patent number: 8526293
    Abstract: The information recording medium (100) of the present invention includes: an information layer (110) including a recording layer (115) capable of changing its phase containing at least one selected from Ge—Te, Sb—Te and Ge—Sb, and two or more dielectric layers (117, 118) disposed on the optical beam incident side with respect to the recording layer (115); and a transparent layer (102) disposed on the optical beam incident side with respect to the information layer (110) adjacent to the information layer, made of a transparent material with respect to the optical beam, and having a refractive index n of 1.75 or more.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: September 3, 2013
    Assignee: Panasonic Corporation
    Inventors: Rie Kojima, Masahiro Birukawa, Kenji Narumi, Noboru Yamada
  • Patent number: 8520490
    Abstract: In an optical disk including at least a rewritable phase change material and comprising a recording layer having a reflectivity of more than 15%, an address output value as an address pit signal component occupying in a reproduced signal in a non recording state is prescribed to be 0.18 though 0.27 or a numerical aperture of an address pit signal occupying in a reproduced signal in a non recording state is prescribed to be more than 0.3.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: August 27, 2013
    Assignee: JVC Kenwood Corporation
    Inventors: Tetsuya Kondo, Eiji Nakagawa, Hirofumi Nagano
  • Patent number: 8475903
    Abstract: According to one embodiment, an information recording/reproducing device includes a recording layer, and a recording circuit configured to record information by generating a phase change in the recording layer while applying a voltage to the recording layer. The recording layer comprises a compound including at least one type of cationic element, and at least one type of anionic element, at least the one type of cationic element is a transition element including a d orbital incompletely filled with electrons, and the average shortest distance between adjacent cationic elements is 0.32 nm or less, and the recording layer is provided with a material selected from (i) AxMyX4 (0?x?2.2, 1.8?y?3), (ii) AxMyX3 (0?x?1.1, 0.9?y?3), and (iii) AxMyX4 (0?x?1.1, 0.9?y?3).
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: July 2, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Kohichi Kubo
  • Patent number: 8462608
    Abstract: [Object] To provide a durable read-only optical recording medium having less variances in characteristics of a metal reflective film due to a temporal change. [Solving Means] Provided is a read-only optical recording medium (100) including: a substrate (101); an information recording surface onto which information is recorded by combining pits (P) and lands (L); and a metal reflective film (102) that is provided in contact with the information recording surface and represented by Al100-x-zXxZz, where x and z each represent an atomic %, X is constituted of an element including at least Ti, Z is constituted of an element including at least Fe, x is 1.0 to 3.0, and z is 0.05 to 1.0.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: June 11, 2013
    Assignees: Sony Corporation, Sony DADC Corporation
    Inventors: Tetsuhiro Sakamoto, Jun Nakano, Takehide Endo, Naoki Okawa
  • Patent number: 8455079
    Abstract: The invention relates to three-dimensional optical memory devices and can be used in all areas of computing in which it is necessary to record large data files on compact carriers. The claimed device can also be used for recording, storing and playing back video and audio recordings. A multi-layer optical disc consists of a series of alternating layers of optically transparent materials arranged in groups that comprise a layer of a material with a refraction index n1 enclosed between a layer of a material with a refraction index n2, which satisfies the relationship n2<n1, and a layer of a material with a refraction index n3, which satisfies the relationship |n3-n1|<0.001, wherein the layer with the refraction index n3 contains a photosensitive compound that can exist in two forms characterized by different optical properties.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: June 4, 2013
    Assignee: Everhost Investments Limited
    Inventor: Vadim Veniaminovich Kiyko
  • Patent number: 8441897
    Abstract: An optically-readable disk includes a device that disrupts readability of the disk when the disk is spun at an angular velocity substantially greater than required to play the disk in its intended playing device, or when a defined integral of velocity and time is exceeded. The device may include a fluid container that disperses a data-disruptive fluid. The device may include a membrane or layer that is disrupted when the disk is rotated above a defined angular velocity, or when a defined integral of velocity and time is exceeded. The device may include an electro-optical material that is activated by an electrical signal from a controller in response to an input from a sensor responsive to motion of the disk.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: May 14, 2013
    Inventor: Gary Stephen Shuster
  • Patent number: 8369204
    Abstract: An approach is presented for designing a polymeric layer for nanometer scale thermo-mechanical storage devices. Cross-linked polyimide oligomers are used as the recording layers in atomic force data storage device, giving significantly improved performance when compared to previously reported cross-linked and linear polymers. The cross-linking of the polyimide oligomers may be tuned to match thermal and force parameters required in read-write-erase cycles. Additionally, the cross-linked polyimide oligomers are suitable for use in nano-scale imaging.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: February 5, 2013
    Assignee: International Business Machines Corporation
    Inventors: Urs T. Duerig, Jane Elizabeth Frommer, Bernd Walter Gotsmann, Erik Christopher Hagberg, James Lupton Hedrick, Armin W. Knoll, Victor Yee-Way Lee, Teddie Peregrino Magbitang, Robert Dennis Miller, Russell Clayton Pratt, Charles Gordon Wade, Johannes Windeln
  • Patent number: 8335150
    Abstract: In an optical disk including at least a rewritable phase change material and comprising a recording layer having a reflectivity of more than 15%, an address output value as an address pit signal component occupying in a reproduced signal in a non recording state is prescribed to be 0.18 though 0.27 or a numerical aperture of an address pit signal occupying in a reproduced signal in a non recording state is prescribed to be more than 0.3.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: December 18, 2012
    Assignee: JVC Kenwood Corporation
    Inventors: Tetsuya Kondo, Eiji Nakagawa, Hirofumi Nagano
  • Patent number: 8335151
    Abstract: In an optical disk including at least a rewritable phase change material and comprising a recording layer having a reflectivity of more than 15%, an address output value as an address pit signal component occupying in a reproduced signal in a non recording state is prescribed to be 0.18 though 0.27 or a numerical aperture of an address pit signal occupying in a reproduced signal in a non recording state is prescribed to be more than 0.3.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: December 18, 2012
    Assignee: JVC Kenwood Corporation
    Inventors: Tetsuya Kondo, Eiji Nakagawa, Hirofumi Nagano
  • Patent number: 8326119
    Abstract: An apparatus is described for recording an optical record carrier (40). The apparatus is arranged for recording a visually detectable pattern (LBL) at the record carrier in a ring shaped zone (RP). The apparatus is further arranged to record data (Data1, Data2) and a primary data organizing system (FS) wherein the data is organized. The primary data organizing system (FS) does not refer to a physical address within the ring shaped zone. The apparatus is further arranged for recording at least part of the data (Data2) or the primary data organizing system on the record carrier at an area peripherally arranged with respect to the ring shaped zone.
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: December 4, 2012
    Assignee: Lite-On It Corporation
    Inventors: Maarten Kuijper, Petrus Henricus Cornelius Bentvelsen, Mathias Martinus Maria Timmermans, Markus Wilhelmus Maria Coopmans
  • Patent number: 8320232
    Abstract: A patterned perpendicular magnetic recording medium has discrete data islands that have first and second ferromagnetic layers (MAG1 and MAG2) with first and second nonmagnetic interlayers (IL1 and IL2) between MAG1 and MAG2. MAG1 and MAG2 may be similar CoPtCr alloys with similar thicknesses, with thicknesses of IL1 and IL2 that assure that MAG1 and MAG2 are strongly exchange coupled. Alternatively, MAG2 may be a “write assist” layer, for example a high-saturation magnetization, magnetically soft material in an exchange-spring structure, with IL1 being very thin so that IL2 functions as the coupling layer between MAG1 and the write-assist MAG2 layer. In an application for thermally-assisted recording (TAR), MAG2 may be the chemically-ordered equiatomic binary alloy FePt or CoPt based on the L10 phase, with high magneto-crystalline anisotropy (Ku).
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: November 27, 2012
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Ernesto E. Marinero, Dieter K. Weller, Brian R. York
  • Patent number: 8304167
    Abstract: An optical information recording medium includes a recording layer that absorbs recording light in accordance with its wavelength, the recording light being condensed for information recording, and increases the temperature in the vicinity of a focus so as to form a recording mark and that has properties of increasing a light absorption amount with respect to the wavelength of the recording light by heating performed at a temperature of 120° C. or more.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: November 6, 2012
    Assignee: Sony Corporation
    Inventors: Yusuke Suzuki, Takao Kudo, Kazuya Hayashibe, Hiroshi Uchiyama
  • Patent number: 8279739
    Abstract: A heat-assisted magnetic recording medium that includes a substrate, underlayers formed on the substrate, and a magnetic layer which is formed on the underlayers and contains either an FePt alloy having an L10 structure or a CoPt alloy having an L10 structure as a main component, wherein the underlayers include a first underlayer formed from an amorphous alloy, a second underlayer formed from an alloy having a BCC structure containing Cr as a main component and also containing at least one element selected from among Ti, Mo, W, V, Mn and Ru, and a third underlayer formed from MgO. Also, a magnetic storage device that uses the heat-assisted magnetic recording medium.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: October 2, 2012
    Assignee: Showa Denko K.K.
    Inventors: Tetsuya Kanbe, Yuzo Sasaki, Atsushi Hashimoto
  • Patent number: 8270286
    Abstract: Disclosed is a thermally assisted magnetic recording medium comprising a substrate, a plurality of underlayers formed on the substrate, and a magnetic layer which is formed on the underlayers and predominantly comprised of an alloy having an L10 structure, characterized in that at least one of said underlayers is predominantly comprised of MgO and comprises at least one kind of an element having a free energy for oxidation of, per mol of oxygen, not higher than ?120 kcal/mol·O2 at 1000° C. The element having the free energy for oxidation is preferably selected from Al, Si, Ti, V, Cr, Mn, Zr and B. The thermally assisted magnetic recording medium has a magnetic layer comprised of magnetic crystal grains with uniform diameters, and exhibiting a sufficiently weak exchange coupling between magnetic grains.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: September 18, 2012
    Assignee: Showa Denko K.K.
    Inventors: Tetsuya Kanbe, Atsushi Hashimoto, Takayuki Fukushima
  • Patent number: 8258481
    Abstract: A system for selectively enabling or disabling an optical device. In an illustrative embodiment, the system implements an optical-device theft-prevention system. The theft-prevention system includes a material that is selectively positioned on, in, or relative to the optical device so that the transparency of the material affects a desired operation of the optical device. An energy beam is selectively employed to enable or disable the optical device by affecting the transparency of the material. In a specific embodiment, the fist material includes a dye, such as an energy-sensitive dye. The optical device includes an optical disc, such as Compact Disc (CD) or Digital Video Disc (DVD). The energy-sensitive dye is disposed over an entire readable surface of the optical device.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: September 4, 2012
    Assignee: Sony DADC US Inc.
    Inventors: Tony New, Richard Selinfreund
  • Patent number: 8252510
    Abstract: According to one embodiment, a write-once type information storage medium comprises an organic dye based recording material having sensitivity at a wavelength of 405 nm and at a recording wavelength in the range of 600 nm to 700 nm, wherein, when absorbance of a maximum absorption wavelength in the vicinity of 405 nm is defined as 1, the absorbance is 5% or more at any wavelength in the range of 600 nm to 700 nm.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: August 28, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hideo Ando, Seiji Morita, Koji Takazawa, Yasuaki Ootera, Naoki Morishita, Kazuyo Umezawa
  • Patent number: 8241834
    Abstract: An optical recording medium includes a substrate having features that define track regions, an optical recording layer disposed on the substrate, and a light-transmitting layer disposed on the optical recording layer. The optical recording layer has a composition of (Sb2Se3)wTexOyPdz, where w, x, y, and z each represent a molar percent and satisfy 10 (mol %)?w?60 (mol %), 0 (mol %)<x?60 (mol %), 30 (mol %)?y?60 (mol %), 10 (mol %)?z?30 (mol %), and w+x+y+z=100.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: August 14, 2012
    Assignee: Sony Corporation
    Inventors: Kouichi Yasuda, Shigeki Takagawa
  • Patent number: 8232042
    Abstract: According to one embodiment, a storage medium comprises a transparent resin substrate on which a groove is formed, a recording layer formed on the groove on the transparent resin substrate, the recording layer using an organic dye material and recording information with a light beam of 620 nm or less in wavelength, a reflection layer formed on the recording layer, and a prevention layer formed between the recording layer and the reflection layer, the prevention layer preventing degradation of characteristics of the reflection layer.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: July 31, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tsukasa Nakai, Seiji Morita, Koji Takazawa, Yasuaki Ootera, Naoki Morishita, Kazuyo Umezawa, Hideo Ando
  • Patent number: 8223598
    Abstract: An optically-readable disk includes a device that disrupts readability of the disk when the disk is spun at an angular velocity substantially greater than required to play the disk in its intended playing device, or when a defined integral of velocity and time is exceeded. The device may include a fluid container that disperses a data-disruptive fluid. The device may include a membrane or layer that is disrupted when the disk is rotated above a defined angular velocity, or when a defined integral of velocity and time is exceeded. The device may include an electro-optical material that is activated by an electrical signal from a controller in response to an input from a sensor responsive to motion of the disk.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: July 17, 2012
    Inventor: Gary Stephen Shuster
  • Patent number: 8223621
    Abstract: In an optical disk including at least a rewritable phase change material and comprising a recording layer having a reflectivity of more than 15%, an address output value as an address pit signal component occupying in a reproduced signal in a non recording state is prescribed to be 0.18 though 0.27 or a numerical aperture of an address pit signal occupying in a reproduced signal in a non recording state is prescribed to be more than 0.3.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: July 17, 2012
    Assignee: JVC Kenwood Corporation
    Inventors: Tetsuya Kondo, Eiji Nakagawa, Hirofumi Nagano
  • Publication number: 20120106314
    Abstract: A composition of matter for the recording medium of nanometer scale thermo-mechanical information storage devices and a nanometer scale thermo-mechanical information storage device. The composition includes: one or more polyaryletherketone polymers, each of the one or more polyaryletherketone polymers having two terminal ends, each terminal end having two or more phenylethynyl moieties. The one or more polyaryletherketone polymers are thermally cured and the resulting cross-linked polyaryletherketone resin used as the recording layers in atomic force data storage devices.
    Type: Application
    Filed: January 3, 2012
    Publication date: May 3, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Richard Anthony DiPietro, Urs T. Duerig, Jane Elizabeth Frommer, Bernd Walter Gotsmann, Erik Christopher Hagberg, James Lupton Hedrick, Armin W. Knoll, Teddie Peregrino Magbitang, Robert Dennis Miller, Russell Clayton Pratt, Charles Gordon Wade
  • Patent number: 8142981
    Abstract: According to one embodiment, a write-once type information storage medium comprises an organic dye based recording material having sensitivity at a wavelength of 405 nm and at a recording wavelength in the range of 600 nm to 700 nm, wherein, when absorbance of a maximum absorption wavelength in the vicinity of 405 nm is defined as 1, the absorbance is 5% or more at any wavelength in the range of 600 nm to 700 nm.
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: March 27, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hideo Ando, Seiji Morita, Koji Takazawa, Yasuaki Ootera, Naoki Morishita, Kazuyo Umezawa
  • Patent number: RE43966
    Abstract: An information recording medium comprising a substrate having a recording surface provided with emboss pits or guiding grooves, a reflective film formed on the recording surface of the substrate, and a first protective film formed on the reflective film. This information recording medium is featured in that both sides of the information recording medium are constituted by a first surface provided with the protective film and by a second surface formed opposite to the first surface, and that an irradiated light beam is irradiated through the first surface, a recorded information being reproduced based on changes in light intensity of the reflected light beam.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: February 5, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tadashi Kobayashi, Hisashi Yamada
  • Patent number: RE43967
    Abstract: An information recording medium comprising a substrate having a recording surface provided with emboss pits or guiding grooves, a reflective film formed on the recording surface of the substrate, and a first protective film formed on the reflective film. This information recording medium is featured in that both sides of the information recording medium are constituted by a first surface provided with the protective film and by a second surface formed opposite to the first surface, and that an irradiated light beam is irradiated through the first surface, a recorded information being reproduced based on changes in light intensity of the reflected light beam.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: February 5, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tadashi Kobayashi, Hisashi Yamada
  • Patent number: RE43968
    Abstract: An information recording medium comprising a substrate having a recording surface provided with emboss pits or guiding grooves, a reflective film formed on the recording surface of the substrate, and a first protective film formed on the reflective film. This information recording medium is featured in that both sides of the information recording medium are constituted by a first surface provided with the protective film and by a second surface formed opposite to the first surface, and that an irradiated light beam is irradiated through the first surface, a recorded information being reproduced based on changes in light intensity of the reflected light beam.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: February 5, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tadashi Kobayashi, Hisashi Yamada
  • Patent number: RE43969
    Abstract: An information recording medium comprising a substrate having a recording surface provided with emboss pits or guiding grooves, a reflective film formed on the recording surface of the substrate, and a first protective film formed on the reflective film. This information recording medium is featured in that both sides of the information recording medium are constituted by a first surface provided with the protective film and by a second surface formed opposite to the first surface, and that an irradiated light beam is irradiated through the first surface, a recorded information being reproduced based on changes in light intensity of the reflected light beam.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: February 5, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tadashi Kobayashi, Hisashi Yamada
  • Patent number: RE43970
    Abstract: An information recording medium comprising a substrate having a recording surface provided with emboss pits or guiding grooves, a reflective film formed on the recording surface of the substrate, and a first protective film formed on the reflective film. This information recording medium is featured in that both sides of the information recording medium are constituted by a first surface provided with the protective film and by a second surface formed opposite to the first surface, and that an irradiated light beam is irradiated through the first surface, a recorded information being reproduced based on changes in light intensity of the reflected light beam.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: February 5, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tadashi Kobayashi, Hisashi Yamada
  • Patent number: RE43971
    Abstract: An information recording medium comprising a substrate having a recording surface provided with emboss pits or guiding grooves, a reflective film formed on the recording surface of the substrate, and a first protective film formed on the reflective film. This information recording medium is featured in that both sides of the information recording medium are constituted by a first surface provided with the protective film and by a second surface formed opposite to the first surface, and that an irradiated light beam is irradiated through the first surface, a recorded information being reproduced based on changes in light intensity of the reflected light beam.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: February 5, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tadashi Kobayashi, Hisashi Yamada
  • Patent number: RE43972
    Abstract: An information recording medium comprising a substrate having a recording surface provided with emboss pits or guiding grooves, a reflective film formed on the recording surface of the substrate, and a first protective film formed on the reflective film. This information recording medium is featured in that both sides of the information recording medium are constituted by a first surface provided with the protective film and by a second surface formed opposite to the first surface, and that an irradiated light beam is irradiated through the first surface, a recorded information being reproduced based on changes in light intensity of the reflected light beam.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: February 5, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tadashi Kobayashi, Hisashi Yamada
  • Patent number: RE43973
    Abstract: An information recording medium comprising a substrate having a recording surface provided with emboss pits or guiding grooves, a reflective film formed on the recording surface of the substrate, and a first protective film formed on the reflective film. This information recording medium is featured in that both sides of the information recording medium are constituted by a first surface provided with the protective film and by a second surface formed opposite to the first surface, and that an irradiated light beam is irradiated through the first surface, a recorded information being reproduced based on changes in light intensity of the reflected light beam.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: February 5, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tadashi Kobayashi, Hisashi Yamada
  • Patent number: RE43974
    Abstract: An information recording medium comprising a substrate having a recording surface provided with emboss pits or guiding grooves, a reflective film formed on the recording surface of the substrate, and a first protective film formed on the reflective film. This information recording medium is featured in that both sides of the information recording medium are constituted by a first surface provided with the protective film and by a second surface formed opposite to the first surface, and that an irradiated light beam is irradiated through the first surface, a recorded information being reproduced based on changes in light intensity of the reflected light beam.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: February 5, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tadashi Kobayashi, Hisashi Yamada
  • Patent number: RE43975
    Abstract: An information recording medium comprising a substrate having a recording surface provided with emboss pits or guiding grooves, a reflective film formed on the recording surface of the substrate, and a first protective film formed on the reflective film. This information recording medium is featured in that both sides of the information recording medium are constituted by a first surface provided with the protective film and by a second surface formed opposite to the first surface, and that an irradiated light beam is irradiated through the first surface, a recorded information being reproduced based on changes in light intensity of the reflected light beam.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: February 5, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tadashi Kobayashi, Hisashi Yamada
  • Patent number: RE44018
    Abstract: An information recording medium comprising a substrate having a recording surface provided with emboss pits or guiding grooves, a reflective film formed on the recording surface of the substrate, and a first protective film formed on the reflective film. This information recording medium is featured in that both sides of the information recording medium are constituted by a first surface provided with the protective film and by a second surface formed opposite to the first surface, and that an irradiated light beam is irradiated through the first surface, a recorded information being reproduced based on changes in light intensity of the reflected light beam.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: February 19, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tadashi Kobayashi, Hisashi Yamada
  • Patent number: RE44154
    Abstract: An information recording medium comprising a substrate having a recording surface provided with emboss pits or guiding grooves, a reflective film formed on the recording surface of the substrate, and a first protective film formed on the reflective film. This information recording medium is featured in that both sides of the information recording medium are constituted by a first surface provided with the protective film and by a second surface formed opposite to the first surface, and that an irradiated light beam is irradiated through the first surface, a recorded information being reproduced based on changes in light intensity of the reflected light beam.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: April 16, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tadashi Kobayashi, Hisashi Yamada