Containing Nonpolymeric Chromophore Patents (Class 430/270.15)
  • Patent number: 11155908
    Abstract: A system and method of verifying that a part is heat treated to strengthen the part. The part is marked with a thermo-chromatic composition before heat treating. The part is then heat treated to strengthen the part and change the color of the thermo-chromatic composition to indicate successful completion of the heat treating process. A detector may act to prevent the inclusion of a non-heat treated part in an assembly by disabling an assembly tool. A controller may also provide data related to the completion of the heat treating process to be recorded in a database.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: October 26, 2021
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Aindrea McKelvey Campbell, Amanda Kay Freis, Peter A. Friedman, Rosa Lynda Nuno, S. George Luckey
  • Patent number: 10746978
    Abstract: An immersion liquid holder 2 is an immersion liquid holder that is used for an observation device 10 for observing sample S by using an immersion method, and includes a supporting member 2b configured to support an absorption member 3 that has absorbed an immersion liquid and a connection unit 2c configured to relatively fix the absorption member 3 that has absorbed the immersion liquid with respect to an optical system, which is an optical system included in the observation device 10, and to fix the absorption member 3 on an optical path of the optical system 1, by fixing the supporting member 2b to the observation device 10.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: August 18, 2020
    Assignee: OLYMPUS CORPORATION
    Inventors: Brendan Brinkman, Yoshihiro Shimada, Daisuke Nishiwaki
  • Patent number: 9924115
    Abstract: A scanner and method for using the same are disclosed. The scanner includes a stage, a MIR light source, an imaging system, and a controller. The stage is adapted to hold a specimen to be imaged and to move the specimen in a first direction and in a second direction that is orthogonal to the lateral direction. The imaging system forms an image plane of the specimen when the stage is positioned at a second direction distance, z, from a known point in the imaging system. The imaging system forms a plurality of different image planes of the specimen at the illumination wavelength. Each of the plurality of image planes is characterized by a different value of z, the controller determining a value of z for each of a plurality of points on the specimen at which the point on the specimen is in focus.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: March 20, 2018
    Assignee: Agilent Technologies, Inc.
    Inventor: Christopher Ryan Moon
  • Patent number: 8980530
    Abstract: An optical information recording medium 10 comprises a plurality of recording layers 14, and intermediate layers 15 each provided between the recording layers 14. Each of the recording layers 14 includes polymer binder and dye dispersed in the polymer binder, and the dye is subject to multi-photon absorption of a recording beam RB having a predetermined wavelength and to linear absorption not smaller than 1.5% per recording layer at the predetermined wavelength of the recording beam. When the dye is irradiated with the recording beam and generates heat by linear absorption and multi-photon absorption of the recoding beam RB, the polymer binder undergoes a change of shape by the generated heat, whereby an interface between the recording layer 14 and the intermediate layer undergoes a change of shape to record information.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: March 17, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Hidehiro Mochizuki, Toshio Sasaki, Masaharu Akiba
  • Patent number: 8932786
    Abstract: The new metal azo pigments comprising the adduct of a) at least two metal azo compounds of the formula (I) or their tautomeric forms in which the substituents have the definition indicated in the description, and b) at least one compound of the formula (II) in which R6 has the definition indicated in the description, are characterized in that in the X-ray diffractogram with a lattice constant of d=10.3 (±0.2) ? the metal azo pigment has a signal S1 with an intensity I1 and in the lattice constant range from d=16.05 ? to d=11.78 ? has no signal S2 whose intensity I2 in relation to the intensity I1 of signal S1, expressed as ratio I2/I1 of the background-corrected intensities, exceeds a value of 0.02, and are outstandingly suitable for producing pigment preparations and especially for producing color filters.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: January 13, 2015
    Assignee: LANXESS Deutschland GmbH
    Inventors: Hans-Ulrich Borst, Frank Linke, Heinz-Josef Fuellmann, Stephan Michaelis, Dirk Pfuetzenreuter, Sabine Endert
  • Patent number: 8859184
    Abstract: A write-only-read-many type optical recording medium includes a substrate, an organic material layer having a light absorption function that is sufficient for recording in the recording/reproduction wavelength range, the organic material layer being situated on the substrate, and a reflection layer being situated on the organic material layer. The recording medium is configured to have a Low-to-High recording property and record with a laser having a wavelength that is no greater than 500 nm.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: October 14, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Noboru Sasa
  • Patent number: 8846298
    Abstract: A write-only-read-many type optical recording medium includes a substrate, an organic material layer having a light absorption function that is sufficient for recording in the recording/reproduction wavelength range, the organic material layer being situated on the substrate, and a reflection layer being situated on the organic material layer. The recording medium is configured to have a Low-to-High recording property and record with a laser having a wavelength that is no greater than 500 nm.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: September 30, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Noboru Sasa
  • Patent number: 8586283
    Abstract: A curable liquid formulation containing at least (i) one or more near-infrared absorbing triphenylamine-based dyes, and (ii) one or more casting solvents. The invention is also directed to solid near-infrared absorbing films composed of crosslinked forms of the curable liquid formulation. The invention is also directed to a microelectronic substrate containing a coating of the solid near-infrared absorbing film as well as a method for patterning a photoresist layer coated on a microelectronic substrate in the case where the near-infrared absorbing film is between the microelectronic substrate and a photoresist film.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: November 19, 2013
    Assignee: International Business Machines Corporation
    Inventors: Martin Glodde, Dario L. Goldfarb, Wu-Song Huang, Wai-Kin Li, Sen Liu, Pushkara R. Varanasi, Libor Vyklicky
  • Patent number: 8586280
    Abstract: The present invention provides dual energy imaging compositions, processes for forming dual energy imaging compositions, methods for forming images using dual energy imaging compositions and substrate (e.g., paper web) treated (e.g., coated) on one or both sides with a dual energy imaging composition. Also provided is a particulate comprising a matrix of polymer material and containing one or more image-forming agents and a photo-oxidizing agent useful in making dual energy imaging compositions.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: November 19, 2013
    Assignee: International Paper Company
    Inventors: Richard C. Williams, Richard D. Faber, Oleg Grinevich, John Malpert, Alexandre Mejiritski, Douglas C. Neckers
  • Patent number: 8586279
    Abstract: The present invention provides dual wavelength imaging compositions, processes for forming dual wavelength imaging compositions, methods for forming images using dual wavelength imaging compositions and substrate (e.g., paper web) treated (e.g., coated) on one or both sides with dual wavelength imaging compositions. Also provided is a dual wavelength imaging particulate comprising a matrix of polymer material and containing: one or more image-forming agents; a photo-oxidizing agent which is activated at a first wavelength of light to cause the one or more image-forming agents to form one or more images; and a reducing agent which is activated at a second wavelength of light to cause termination of the formation of the one or more images.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: November 19, 2013
    Assignee: International Paper Company
    Inventors: Richard C. Williams, Richard D. Faber, Oleg Grinevich, John Malpert, Alexandre Mejiritski, Douglas C. Neckers
  • Patent number: 8545738
    Abstract: Provided are ink compositions, methods for making photochromic inks, and methods of using the photochromic inks for erasable media annotation. In accordance with various embodiments, there is an ink composition including a carrier medium and one or more photochromic species in the carrier medium, wherein each of the one or more photochromic species can be selected from the group consisting of monomeric photochromic molecules, photochromic oligomers, and photochromic polymers, and wherein each one of the one or more photochromic species exhibits a reversible transition from a colorless state to a colored state upon exposure to a radiant condition wherein the radiant condition can be selected from the group consisting of a radiant energy and a combination of a radiant energy and thermal energy.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: October 1, 2013
    Assignee: Xerox Corporation
    Inventors: Peter M. Kazmaier, Gabriel Iftime, Kentaro Morimitsu, Adela Goredema
  • Patent number: 8518631
    Abstract: Provided is a nonlinear optical material, an optical recording material, an optical recording method, a photosensitive material, a photopolymerization initiator, and a photosensitizer. One exemplary aspect of the present invention is a photosensitive material used for photolithography for forming a pattern by irradiating a photoresist with excitation light which includes a donor molecule 11 that is excited by the excitation light, and an acceptor molecule 12 that is excited by energy transfer or charge transfer from the excited donor 11.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: August 27, 2013
    Assignees: Osaka University, Nanophoton Corporation
    Inventors: Katsumasa Fujita, Minoru Kobayashi, Kazuya Kikuchi, Shin Mizukami, Satoshi Kawata, Shogo Kawano
  • Patent number: 8501392
    Abstract: A photosensitive element comprises a support, a photosensitive layer and a protective film laminated in that order, wherein the photosensitive layer is composed of a photosensitive resin composition containing a binder polymer, a photopolymerizing compound, a photopolymerization initiator and a compound with a maximum absorption wavelength of 370-420 nm, and the protective film is composed mainly of polypropylene.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: August 6, 2013
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Manabu Saitou, Junichi Iso, Tatsuya Ichikawa, Takeshi Ohashi, Hanako Yori, Masahiro Miyasaka, Takashi Kumaki
  • Patent number: 8497053
    Abstract: The present invention relates to a pigment dispersion composition that is capable of decreasing pattern residues and improving resolution, a resist composition for a color filter including the same, and a color filter fabricated using the same. More particularly, the pigment dispersion composition includes a pigment, a binder resin, a solvent, and a first dispersing agent and a second dispersing agent each represented by a predetermined chemical formula.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: July 30, 2013
    Assignee: Cheil Industries Inc.
    Inventors: Chang-Min Lee, Kil-Sung Lee, Jae-Hyun Kim, Eui-June Jeong
  • Patent number: 8472020
    Abstract: A method for enhancing recording yields by monitoring dye polymer formation on a glass substrate is provided. After the glass substrate is coated with a dye polymer layer and before pits are formed on the dye-polymer coated glass, the dye polymer coated glass substrate is scanned to detect defects. The dye-polymer coated glass is discarded on the one hand if the defects detected through the scanning are at or above an unacceptable threshold level, and on the other hand data is written on the dye-polymer coated glass if the defects detected through the scanning are below the unacceptable threshold level.
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: June 25, 2013
    Assignee: Cinram Group, Inc.
    Inventor: Thomas I. Sweeney
  • Patent number: 8465887
    Abstract: Exemplary embodiments provide compositions for erasable media and methods of forming polymers for erasable media. The method can include providing a first monomer, the first monomer including one or more alkoxylated bisphenols and adding at least one second monomer and a catalyst to the first monomer to form a mixture at a first temperature, the second monomer selected from the group consisting of an organic diacid, a dialkyl ester of the organic diacid, and combinations thereof. The method can also include melt condensing the mixture by increasing the temperature from the first temperature to a second temperature over a first amount of time to form one or more polymers, wherein the one or more polymers has an acid value in the range of about 0.1 mg-KOH to about 12 mg-KOH.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: June 18, 2013
    Assignee: Xerox Corporation
    Inventors: Adela Goredema, Guerino Sacripante, Gabriel Iftime, Kentaro Morimitsu, Roger Gaynor, Peter M. Kazmaier
  • Patent number: 8343709
    Abstract: Provided are a processed pigment excellent in dispersibility and dispersion stability, a pigment-dispersed composition excellent in dispersibility and dispersion stability of a pigment that uses the processed pigment, a colored photosensitive composition using the pigment-dispersed composition, and a color filter having improved color properties that uses the colored photosensitive composition, in which a pigment is covered with at least one of a specific polymer compound selected from the following (SP-1) to (SP-3); (SP-1) A polymer compound having a heterocycle on a side chain, (SP-2) A graft polymer compound having a weight average molecular weight of from 1,000 to 100000, (SP-3) A polymer compound represented by the following formula (3-1), wherein, RC, RD, A1 and P1 respectively represent an organic linkage group, a single bond or a divalent organic linkage group, a monovalent organic group containing such as an organic dye structure, and a polymer skeleton.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: January 1, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Kazuhiro Fujimaki, Koichi Sugihara, Shigekazu Suzuki, Hidenori Takahashi
  • Patent number: 8343608
    Abstract: The present disclosure relates to optical media and the formation and use of such media. In certain embodiments the optical media or a composition suitable for such media includes a polymeric matrix or substrate. A dye, such as an energy transfer dye is chemically appended to the polymeric matrix or substrate, such as by one or more covalent bonds.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: January 1, 2013
    Assignee: General Electric Company
    Inventors: Arunkumar Natarajan, Evgenia Mikhailovna Kim, Vicki Herzl Watkins, Julia Lam Lee, Patrick Joseph McCloskey, Kwok Pong Chan, Matthew Jeremiah Misner, Victor Petrovich Ostroverkhov
  • Patent number: 8293451
    Abstract: A curable liquid formulation containing at least (i) one or more near-infrared absorbing triphenylamine-based dyes, and (ii) one or more casting solvents. The invention is also directed to solid near-infrared absorbing films composed of crosslinked forms of the curable liquid formulation. The invention is also directed to a microelectronic substrate containing a coating of the solid near-infrared absorbing film as well as a method for patterning a photoresist layer coated on a microelectronic substrate in the case where the near-infrared absorbing film is between the microelectronic substrate and a photoresist film.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: October 23, 2012
    Assignee: International Business Machines Corporation
    Inventors: Martin Glodde, Dario L. Goldfarb, Wu-Song Huang, Wai-Kin Li, Sen Liu, Pushkara R. Varanasi, Libor Vyklicky
  • Patent number: 8236466
    Abstract: Exemplary embodiments provide compositions and methods for making and using an erasable medium that can include a photochromic layer disposed over a substrate. The photochromic layer can include one or more photochromic molecule-polymer systems, wherein each of the one or more photochromic molecule-polymer systems can include a photochromic molecule covalently bonded within a polymer main chain, the photochromic molecule including one or more photochromic moieties (PM) linked together via a linker.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: August 7, 2012
    Assignee: Xerox Corporation
    Inventors: Kentaro Morimitsu, Gabriel Iftime, Peter M. Kazmaier
  • 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: 8216765
    Abstract: The present disclosure provides a reusable and reimageable medium including a substrate coated with a photochromic polymer. The photochromic polymer has a glass transition temperature ranging from 30° C. to 150° C., such as from about 30° C. to about 100° C., and the coated substrate converts to a colored state when both UV light and temperatures ranging from 30° C. up to 100° C. are applied to the coated substrate. The present disclosure also provides a method for producing and using the reusable and reimageable medium.
    Type: Grant
    Filed: March 9, 2009
    Date of Patent: July 10, 2012
    Assignee: Xerox Corporation
    Inventors: Kentaro Morimitsu, Tyler Norsten, Gabriel Iftime, Peter M. Kazmaier, Guerino Sacripante
  • Patent number: 8211620
    Abstract: The present invention relates to thermoplastic material comprising polymer and at least one polychromic substance, wherein the polychromic substance is a functionalised diacetylene having the formula which has the general structure: X—C?C—C?C—Y—(CO)n-QZ wherein X is H or alkyl, Y is a divalent alkylene group, Q is O, S or NR, R is H or alkyl, and Z is alkyl, and n is 0 or 1. The present invention further relates to a method of processing thermoplastic material to form a plastic article, wherein the method comprises the step of processing the thermoplastic material at a temperature greater than the melt temperature of the thermoplastic, wherein the thermoplastic material comprises polymer and at least one polychromic substance as defined above; and further comprising the step of irradiating the plastic article to color at least a region of the plastic article.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: July 3, 2012
    Assignee: The Procter & Gamble Company
    Inventors: Neil John Rogers, Christopher Lamb, Anthony Nicholas Jarvis
  • Patent number: 8163462
    Abstract: The present invention relates to a photosensitive composition, which is capable of being irradiated with high energy beam having a wave length of 1 to 300 nm band. The photosensitive composition includes a binder resin; and a photoelectron absorbent, capable of being excited with photoelectron emitted from the binder resin that absorbs the high energy beam, when the binder resin is irradiated with the high energy beam.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: April 24, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Minoru Toriumi, Toshiro Itani
  • Patent number: 8083973
    Abstract: A compound which undergoes a color change upon irradiation, and which has the general structure: X—C?C—C?C—Y—(CO)n-QZ wherein X is H, alkyl or —Y—(CO)n-QW; each Y is the same or a different divalent alkylene group; Q is O, S or NR; R is H or alkyl; W is H, alkyl or Z; each Z is the same or a different unsaturated alkyl group; and each n is 0 or 1.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: December 27, 2011
    Assignee: DataLase Ltd.
    Inventor: Anthony N Jarvis
  • Patent number: 8003297
    Abstract: Polymeric material, containing a latent acid which can be converted to an acid by irradiation by a laser and optionally further ingredients.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: August 23, 2011
    Assignee: BASF SE
    Inventor: Michael Heneghan
  • Patent number: 7993807
    Abstract: A composition, method, and system for recording an image. The system includes a multiphase imaging material in which energy is absorbed by an antenna material. The absorbed energy causes the reaction of an activator and a color-forming material to form a mark. A fixer is employed to retard the fading of the mark.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: August 9, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Vladek Kasperchik, William Dorogy, Makarand Gore, Marshall Field
  • Patent number: 7935463
    Abstract: A reusable image forming medium, including a substrate; an imaging layer coated on or impregnated into the substrate, wherein an irradiation of the imaging layer produces an image; and a signature material coated on or impregnated into the substrate or the imaging layer, the signature material being detectable by a sensor.
    Type: Grant
    Filed: March 9, 2009
    Date of Patent: May 3, 2011
    Assignees: Xerox Corporation, Palo Alto Research Center Incorporated
    Inventors: Peter M. Kazmaier, Sophie V. Vandebroek, Eric J. Shrader, Gabriel Iftime, Chuck Sperling, Lauren Barclay
  • Patent number: 7923091
    Abstract: An indole compound represented by general formula (I): wherein R1 and R2 each represent a hydrogen atom, a hydrocarbon group having 1 to 30 carbon atoms or a substituent represented by general formula (II); R3 and R4 each represent an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms or an aryl group having 6 to 30 carbon atoms; R5, R6, R7, and R8 each represent a hydrogen atom, a hydrocarbon group having 1 to 30 carbon atoms, a halogen atom, a hydroxyl group, a nitro group, a cyano group, NHR or NR?R?; R, R?, and R? each represent an alkyl group having 1 to 10 carbon atoms, or R? and R? are taken together to form a ring; R5 and R6, R6 and R7, or R7 and R8 may be taken together to form a ring; Anq? represents a q-valent anion; q represents 1 or 2; and p represents a coefficient necessary to maintain charge neutrality.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: April 12, 2011
    Assignee: Adeka Corporation
    Inventor: Satoshi Yanagisawa
  • Patent number: 7914969
    Abstract: According to one embodiment, a write-once type information storage medium comprises a recording layer which is formed by mixing a plurality of organic dye based recording materials whose molecular weights are different from each other, and wherein a mixture ratio of organic dye based recording materials whose molecular weight is small is larger than a mixture ratio of organic dye based recording materials whose molecular weight is large.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: March 29, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hideo Ando, Seiji Morita, Koji Takazawa, Yasuaki Ootera, Naoki Morishita, Kazuyo Umezawa
  • Patent number: 7897320
    Abstract: The present invention relates to thermoplastic material comprising polymer and at least one polychromic substance, wherein the polychromic substance is a functionalised diacetylene having the formula which has the general structure: X—C?C—C?C—Y—(CO)n-QZ wherein X is H or alkyl, Y is a divalent alkylene group, Q is O, S or NR, R is H or alkyl, and Z is alkyl, and n is 0 or 1. The present invention further relates to a method of processing thermoplastic material to form a plastic article, wherein the method comprises the step of processing the thermoplastic material at a temperature greater than the melt temperature of the thermoplastic, wherein the thermoplastic material comprises polymer and at least one polychromic substance as defined above; and further comprising the step of irradiating the plastic article to colour at least a region of the plastic article.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: March 1, 2011
    Assignee: The Procter & Gamble Company
    Inventors: Neil John Rogers, Christopher Lamb, Anthony Nicholas Jarvis
  • Patent number: 7887993
    Abstract: To provide an optical information recording medium including a pigment appropriate for high-density and high-speed optical recording by the blue laser light of 350 to 500 nm and especially around 400 nm (for example, 405 nm), enabling recording at low power, suppressing thermal affect of recording to the optical recording layer, and assuring a reflection ratio or modulation degree by the change of a refraction index n and an attenuation coefficient k; and to provide a recording method thereof. Instead of the recording based on the optical phase difference obtained by a change ?n of the refraction index n of the pigment as in the conventional method, a pigment capable of performing recording based on the change ?k of the attenuation coefficient k has been obtained. Recording may be performed mainly by the change ?k of the attenuation coefficient k.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: February 15, 2011
    Assignee: Taiyo Yuden Co., Ltd.
    Inventors: Keiichi Ida, Daisuke Morishita
  • Patent number: 7811741
    Abstract: An image-forming medium and methods for forming and imaging the medium are provided. The disclosed medium can be strongly colored under room illumination (or deliberate UV) and can be selectively discolored at an appropriate light wavelength to form an image. In one embodiment, the image-forming medium can include a substrate (e.g., a sheet of paper), a photochromic material incorporated with the substrate, and a photo-absorbing material incorporated with the photochromic material. Exemplary methods for using the image-forming medium to make a transient image can include first forming the image-forming medium by applying a coating solution containing photochromic material to the substrate or paper. The image-forming medium can have a medium color and can then be selectively exposed to a radiation through a mask to convert the photochromic material from a colored form to a colorless form and thus to form an image having a color contrast with its background.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: October 12, 2010
    Assignee: Xerox Corporation
    Inventors: Peter M. Kazmaier, Eric Shrader, Kentaro Morimitsu, Tyler Norsten, Gabriel Iftime, Fazilia Seker, Naveen Chopra
  • Patent number: 7781044
    Abstract: A recording layer including a novel organic compound for a high density optical recording medium is provided. The information may be recorded on the recording layer at a 2× speed or higher speed with a relatively lower writing power so that heat distribution of the recording layer in the irradiated area is not likely to become steep both in time and space. The organic compound incorporated in the recording layer has the following general chemical structural formula (I).
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: August 24, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Ming-Chia Li, An-Tse Lee, Chien-Liang Huang, Chung-Ta Cheng, Kuo-Chi Chiu, Tzuan-Ren Jeng
  • Patent number: 7771915
    Abstract: A two-photon absorbing optical recording material comprising at least one two-photon absorbing compound and a recording component is provided. Recording is made on it by utilizing the two-photon absorption of the two-photon absorbing compound in the material, and then the material is irradiated with light to thereby detect the difference in the reflectance between the recorded area and the unrecorded area thereof, and the recorded information is thereby reproduced from the material, and also provided are a photosensitive polymer composition and a photon-mode recording method for the material.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: August 10, 2010
    Assignee: FUJIFILM Corporation
    Inventors: Masaharu Akiba, Takeharu Tani, Hiroo Takizawa, Yoshio Inagaki
  • Patent number: 7736825
    Abstract: A device manufacturing system and method are used to perform multiple exposures utilizing a resettable or reversible contrast enhancing layer. A radiation sensitive layer is formed on a substrate. A resettable or reversible contrast enhancing layer is formed on the radiation sensitive layer. The resettable or reversible contrast enhancing layer is bleached with a first pattern. The first pattern formed in the resettable or reversible contrast enhancing layer is transferred to the radiation sensitive layer. The resettable or reversible contrast enhancing layer is reset to unbleach the resettable or reversible contrast enhancing layer. The resettable or reversible contrast enhancing layer is bleached with a second pattern. The second pattern formed in the resettable or reversible contrast enhancing layer is transferred to the radiation sensitive layer.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: June 15, 2010
    Assignee: ASML Holding N.V.
    Inventor: Harry Sewell
  • Patent number: 7727706
    Abstract: A recording method for a dye-based recordable optical recording medium including recording shortest marks on a recording layer containing a dye formed on a substrate having a guide groove using one pulse beam, and recording second shortest marks or still longer marks at a pulse power as high as or lower than that of the shortest marks using one pulse beam of which two sites of the front edge and rear edge of pulse are highly energized for a given length of time, wherein a ratio Pc/W4 during recording of each mark at 12 m/s or more is set within 1.0 to 3.0; or the irradiation time of the cooling pulse Tc after that the pulse is applied with beams when the Pc/W4 ratio is 0.14 or less is set to be as long as or shorter than the basic clock cycle T.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: June 1, 2010
    Assignee: Ricoh Company, Ltd.
    Inventor: Satoshi Mizukami
  • Patent number: 7727702
    Abstract: A method is provided for irreversibly coloring a coating composition containing a color former comprising the steps of a) providing a coating composition that contains an UV curable resin, a thermosetting resin or an alkyd resin with the proviso that the coating composition contains no developer nor any additive which may function as developer; b) mixing the coating composition with the color former whereby no color is formed; c) applying the colorless composition obtained in step b) to a substrate; d) in case of a thermosetting resin curing the resin between 100 and 300° C., preferably between 100 and 150° C., whereby no color is formed, in case of alkyd resin drying of the resin at room temperature, whereby no color is formed; e) exposure to UV or high energy radiation below 400 nm whereby the color is formed.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: June 1, 2010
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Johannes Benkhoff, Karin Powell
  • Patent number: 7727678
    Abstract: A holographic data storage medium includes a polymer film which is set up as a storage layer and whose surface structure can be changed locally by heating. The polymer film is set up for the storage of holographic information via the local surface structure of the polymer film. A reflective layer can be provided on the data storage medium.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: June 1, 2010
    Assignee: Tesa Scribos GmbH
    Inventors: Stefan Stadler, Steffen Noehte, Christoph Dietrich, Jörn Leiber, Matthias Gerspach
  • Patent number: 7718325
    Abstract: An image forming medium includes a substrate and an imaging layer coated on or impregnated into said substrate, where the imaging layer includes as a photochromic material a spiropyran compound having a conjugated pathway, dispersed in a polymeric binder, wherein the photochromic material exhibits a reversible transition between a colorless state and a colored state in response to heat and light.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: May 18, 2010
    Assignee: Xerox Corporation
    Inventors: Tyler B. Norsten, Gabriel Iftime, Peter M. Kazmaier
  • Patent number: 7678515
    Abstract: The presently disclosed embodiments are directed to image forming mediums useful for reimageable and transient documents. More particularly, the embodiments pertain to an image forming medium comprising thermally gated photochromic materials comprising diarylethene (DAE) photochromes which avoid problems with unwanted reduction in color contrast due to background coloration.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: March 16, 2010
    Assignee: Xerox Corporation
    Inventors: Kentaro Morimitsu, Tyler Norsten, Gabriel Iftime, Peter Kazmaier
  • Patent number: 7655366
    Abstract: An image forming medium includes a substrate and an imaging layer coated on or impregnated into a substrate, where the imaging layer is formed of an imaging composition that includes a solvent or a polymeric binder, and a photochromic material selected from substituted fulgides and substituted dithienylethenes, dissolved or dispersed in the solvent or polymeric binder, and where the imaging composition exhibits a reversible homogeneous-heterogeneous transition between a colorless state, an intermediate colorless or colored erasable state, and a final colored stable state, the photochromic material converting from the colorless state to the colored stable state upon irradiation with light of a first wavelength and converting from the colored stable state to the colorless state upon exposure to heat and light.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: February 2, 2010
    Assignee: Xerox Corporation
    Inventors: Peter M. Kazmaier, Gabriel Iftime, Tyler B. Norsten
  • Patent number: 7655767
    Abstract: The present invention relates to the use of thiazolyl-pyridinium based dyes in optical layers for optical data recording, preferably for optical data recording using a laser with a wavelength up to 450 nm. The invention further relates to a write only read many (WORM) type optical data recording medium capable of recording and reproducing information with radiation of blue laser, which employs a thiazolyl-pyridinium based type dye in the optical layer. The present invention further relates to new thiazolyl-pyridinium based dyes, of formula (V), (VI) or (VIII).
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: February 2, 2010
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Andre Weiss
  • Patent number: 7651833
    Abstract: The present invention relates to a method of preparing a photochromic film or plate comprising printing a photochromic substance in the unit of an independent spot on a part or the whole of a basic material and forming a protective layer on the basic material, on which the photochromic substance is coated, so as to protect the photochromic substance. According to the present invention, the photochromic substance is printed in the unit of an independent spot so that the printed unit spots are isolated from each other, thereby prolonging the life of the photochromic substance.
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: January 26, 2010
    Assignee: LG Chem, Ltd.
    Inventors: Tae-Sik Kang, Sang-Hyuk Im, Seung-Heon Lee, Young-Jun Hong
  • Patent number: 7645560
    Abstract: An image forming medium includes a substrate, and an imaging layer coated on or impregnated into the substrate, wherein the imaging layer includes an imaging composition including a photochromic or photochromic-thermochromic material and an infrared absorbent dissolved or dispersed in a solvent or polymeric binder; wherein the infrared absorber absorbs infrared light of a wavelength in a range from about 730 nm to about 1500 nm; and wherein the imaging composition is imageable by light of a first wavelength and erasable in a short time period by a combination of infrared radiation and light of a second wavelength and exhibits a reversible transition between a colorless and a colored state.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: January 12, 2010
    Assignee: Xerox Corporation
    Inventors: Gabriel Iftime, Gerald A. Domoto, Tyler B. Norsten, Kentaro Morimitsu, Paul F. Smith, Peter M. Kazmaier, Gaetano J. Lavigne, Eric J. Shrader, Stephan V. Drappel
  • Patent number: 7645558
    Abstract: An image forming medium includes a paper substrate and an imaging layer coated on or impregnated into a paper substrate, where the imaging layer is formed of an imaging composition that includes an alkoxy substituted diarylethene photochromic material dissolved or dispersed in a solvent or polymeric binder, and where the imaging composition exhibits a reversible transition between a colorless and a colored state.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: January 12, 2010
    Assignee: Xerox Corporation
    Inventors: Tyler B. Norsten, Gabriel Iftime, Peter M. Kazmaier, Barkev Koshkerian, Naveen Chopra
  • Patent number: 7622241
    Abstract: An initiator composition and infrared radiation-sensitive composition include an onium cation and a boron-containing anion as well as a metallocene. These compositions can be used to provide negative-working imageable elements that can be imaged and developed to provide lithographic printing plates that have desired imaging speed, excellent run length, and shelf life without the need for a post-exposure baking step and oxygen barrier overcoat.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: November 24, 2009
    Assignee: Eastman Kodak Company
    Inventor: Heidi M. Munnelly
  • Patent number: 7622243
    Abstract: The present invention is a photosensitive element including a support and a photosensitive resin composition layer composed of a photosensitive resin composition containing (A) a binder polymer, (B) a photopolymerizable compound, and (C) a photopolymerization initiator, wherein, the photosensitive resin composition contains a thioxanthone-based compound represented by the following general formula (I) as the component (C), and when the parts by weight of the thioxanthone-based compound relative to 100 parts by weight for the total weight of the component (A) and the component (B) is taken to be P, and the film thickness of the photosensitive resin composition layer is taken to be Q (?m), then R, which is the product of P and Q, satisfies the condition of the following formula (1). In the following general formula (I), R1to R8 represent a hydrogen atom, halogen atom or hydrocarbon group. 25.5?R?79.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: November 24, 2009
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Takashi Kumaki, Masahiro Miyasaka, Yasuhisa Ichihashi, Toshiki Ito, Makoto Kaji
  • Patent number: 7608384
    Abstract: Ternary optical data storage method and apparatus for Write Once Read Many Times (WORM) optical data storage with two-photon fluorescent writing and readout. The data storage capacity is limited by the optical resolution of a system. In CD/DVD systems, an increase in the aerial data density has been primarily achieved by decreasing the bit dimension. However, the size of the optical spot (bit) is restricted by limitations imposed by the diffraction of light (Rayleigh criterion). Therefore, technologies that can effectively create and detect spot sizes beyond the diffraction limit (sub-Rayleigh) hold promise to achieving high-density optical storage.
    Type: Grant
    Filed: April 9, 2004
    Date of Patent: October 27, 2009
    Assignee: University of Central Florida Research Foundation, Inc.
    Inventor: Kevin D Belfield
  • Patent number: 7582408
    Abstract: Compositions and systems for production of color images with a fluoran leuco dye having a latent developer are disclosed and described. A color forming composition or composite can include a polymer matrix, a thermally modifiable fluoran leuco dye having a latent developer attached thereto, and a radiation absorber. The thermally modifiable fluoran leuco dye can be developable upon the color forming composition being contacted with electromagnetic radiation which causes the radiation absorber to become energized, so that the energized radiation absorber causes the latent developer to undergo rearrangement to produce an intermediate dye form having a phenolic substituent. The intermediate dye can then undergo an acid catalyzed ring opening to produce a colored dye form.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: September 1, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Vladek Kasperchik, Jayprakash C. Bhatt