Patents by Inventor Masato Kurokawa

Masato Kurokawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240069293
    Abstract: An optical module according to one embodiment includes a package having an opening surrounded by side walls, and a lid mounted on the package to seal the opening. The lid has a plate-like shape and includes a welded portion fixed by welding to an upper surface of the side wall of the package having the opening formed thereon, an easily deformable portion formed at a position separated from the welded portion and deformed along with the welding, and a central portion having a flat shape.
    Type: Application
    Filed: August 15, 2023
    Publication date: February 29, 2024
    Inventors: Munetaka KUROKAWA, Hiroshi HARA, Masato FURUKAWA
  • Publication number: 20240042254
    Abstract: A fire extinguishing body includes a substrate and a fire extinguishing agent-containing layer facing the substrate, the substrate having a Young's modulus of 2 MPa or more.
    Type: Application
    Filed: May 1, 2023
    Publication date: February 8, 2024
    Applicant: TOPPAN INC.
    Inventors: Masato KUROKAWA, Ryo SHODA, Junya TANABE
  • Patent number: 11642869
    Abstract: A phosphor protection film that includes two films that are bonded to each other via an adhesive layer. One of the two films is a film including an inorganic film layer. In the phosphor protection film, when the film including the inorganic film layer of the two films is a barrier film and the other film of the two films is a support film, the support film has a thickness occupying 72% or more of the total thickness of the phosphor protection film.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: May 9, 2023
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventor: Masato Kurokawa
  • Patent number: 11397287
    Abstract: An optical film including a first film substrate and a coating layer formed on the first film substrate. The coating layer of this optical film contains a binder resin and fine particles with an average size of 0.5 ?m or more and 10.0 ?m or less and a standard deviation in size that is less than ½ of the average size.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: July 26, 2022
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Hiroki Ichiba, Masato Kurokawa, Koji Murata, Kengo Ozono
  • Patent number: 11254097
    Abstract: The present invention provides a barrier film laminate including a first barrier film that includes a first substrate layer and a first barrier layer formed on the first substrate layer, a second barrier film that includes a second substrate layer and a second barrier layer formed on the substrate layer, and an adhesive layer. In the barrier film laminate, the first barrier film is bonded with the second barrier film so that the first barrier layer faces the second barrier layer with the adhesive layer interposed therebetween. In one embodiment of the barrier film laminate, the adhesive layer is formed of an adhesive containing an epoxy resin, a curing agent having an amino group, and either a silane coupling agent having an epoxy group or a silane coupling agent having an amino group and two hydrolyzable functional groups.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: February 22, 2022
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Ryo Shoda, Fumitake Suzuki, Koji Murata, Masato Kurokawa, Kengo Ozono
  • Publication number: 20210249568
    Abstract: A production method for a wavelength conversion sheet, including: a bonding step of bonding a multilayer film and a release film together to obtain a phosphor protective film, the multilayer film including a barrier film, the release film being releasable from the multilayer film; a phosphor layer formation step of forming a phosphor layer containing phosphors on a surface of the multilayer film of the phosphor protective film to obtain a wavelength conversion sheet with the release film; and a release step of releasing the release film from the wavelength conversion sheet with the release film.
    Type: Application
    Filed: April 23, 2021
    Publication date: August 12, 2021
    Applicant: TOPPAN PRINTING CO., LTD.
    Inventors: Hiroki ICHIBA, Satoshi MARUYAMA, Masato KUROKAWA, Yasuhiko SAITO
  • Publication number: 20200230915
    Abstract: A phosphor protection film that includes two films that are bonded to each other via an adhesive layer. One of the two films is a film including an inorganic film layer. In the phosphor protection film, when the film including the inorganic film layer of the two films is a barrier film and the other film of the two films is a support film, the support film has a thickness occupying 72% or more of the total thickness of the phosphor protection film.
    Type: Application
    Filed: April 3, 2020
    Publication date: July 23, 2020
    Applicant: TOPPAN PRINTING CO., LTD.
    Inventor: Masato KUROKAWA
  • Patent number: 10557970
    Abstract: A quantum dot protective film for sealing a phosphor, including: a protective layer having foreign matter, the maximum size of which is 100 to 500 ?m; and a coating layer formed on one surface of the protective layer, wherein the abundance ratio of the foreign matter with the maximum size of 100 to 500 ?m is 0.01 to 5.0 particles/m2 in the protective layer, and the haze value is 20% or higher.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: February 11, 2020
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Koji Murata, Kenji Matsumasa, Kengo Okamura, Satoshi Iwata, Masato Kurokawa
  • Publication number: 20190285776
    Abstract: An optical film including a first film substrate and a coating layer formed on the first film substrate. The coating layer of this optical film contains a binder resin and fine particles with an average size of 0.5 ?m or more and 10.0 ?m or less and a standard deviation in size that is less than ½ of the average size.
    Type: Application
    Filed: May 31, 2019
    Publication date: September 19, 2019
    Applicant: TOPPAN PRINTING CO., LTD.
    Inventors: Hiroki ICHIBA, Masato KUROKAWA, Koji MURATA, Kengo OZONO
  • Publication number: 20190039349
    Abstract: The present invention provides a barrier film laminate including a first barrier film that includes a first substrate layer and a first barrier layer formed on the first substrate layer, a second barrier film that includes a second substrate layer and a second barrier layer formed on the substrate layer, and an adhesive layer. In the barrier film laminate, the first barrier film is bonded with the second barrier film so that the first barrier layer faces the second barrier layer with the adhesive layer interposed therebetween. In one embodiment of the barrier film laminate, the adhesive layer is formed of an adhesive containing an epoxy resin, a curing agent having an amino group, and either a silane coupling agent having an epoxy group or a silane coupling agent having an amino group and two hydrolyzable functional groups.
    Type: Application
    Filed: October 10, 2018
    Publication date: February 7, 2019
    Applicant: TOPPAN PRINTING CO., LTD.
    Inventors: Ryo SHODA, Fumitake SUZUKI, Koji MURATA, Masato KUROKAWA, Kengo OZONO
  • Publication number: 20180024277
    Abstract: A quantum dot protective film for sealing a phosphor, including: a protective layer having foreign matter, the maximum size of which is 100 to 500 ?m; and a coating layer formed on one surface of the protective layer, wherein the abundance ratio of the foreign matter with the maximum size of 100 to 500 ?m is 0.01 to 5.0 particles/m2 in the protective layer, and the haze value is 20% or higher.
    Type: Application
    Filed: September 29, 2017
    Publication date: January 25, 2018
    Applicant: TOPPAN PRINTING CO., LTD.
    Inventors: Koji Murata, Kenji Matsumasa, Kengo Okamura, Satoshi Iwata, Masato Kurokawa
  • Patent number: 8221969
    Abstract: It is intended to provide a safe and efficient method of producing a virus which is free from animal-origin components in the whole process from culturing adhesive cells to producing the virus on an industrial scale by the cell culture. Namely, a method of producing a virus comprising: adhering adhesive cells to a support which has a polypeptide (P) having at least one cell-adhesive minimum amino acid sequence (X) per molecule, and is free from animal-origin components; culturing the adhesive cells in a medium free from animal-origin components; subculturing the cultured adhesive cells using a cell dispersing agent: free from animal-origin components; and then inoculating and proliferating a virus in the cells obtained by culturing the adhesive cells.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: July 17, 2012
    Assignees: Sanyo Chemical Industries, Ltd., Denka Seiken Co. Ltd.
    Inventors: Hikaru Kai, Masayuki Tsubaki, Masato Kurokawa
  • Patent number: 8148111
    Abstract: A carrier for cell culture is provided which improves the cell proliferativity in serum-free culture and which is free from risk from infection factor contamination. The gist of the features of the present invention is to be formed of a crosslinked poly(meth)acrylic acid (salt) particle (A) and an artificial polypeptide (P) having at least one cell-adhesive minimal amino acid sequence (X) in one molecule and to have a water retention value of from 2 to 50 g/g. The (A) is preferably a particle produced by reversed phase suspension polymerization of an aqueous monomer solution containing (meth)acrylic acid and/or an alkali metal salt of (meth)acrylic acid. The (P) preferably has at least one auxiliary amino acid sequence (Y) in one molecule of the (P). The (X) is preferably an Arg Gly Asp sequence.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: April 3, 2012
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventors: Masato Kurokawa, Kazuhiro Takahashi
  • Patent number: 7748051
    Abstract: Method and system for embedding a unique and different digital watermark in digital contents for each access without increasing the overhear or load at the contents server. The contents server has a digital watermark-embedded contents storage unit for storing a plurality of digital contents where a different digital watermark is embedded, and a fingerprint performing unit for, adding to the digital contents the information specified using a bit row that is formed by a digital watermark being embedded for each part of the digital contents.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: June 29, 2010
    Assignee: International Business Machines Corporation
    Inventors: Norishige Morimoto, Kohichi Kamijoh, Seiji Kobayashi, Masato Kurokawa
  • Patent number: 7576051
    Abstract: The present invention provides a wound dressing capable of accelerating epidermal regeneration. The present invention relates to a wound dressing for accelerating epidermal regeneration which comprises a polypeptide (P) having at least one species of epidermal regeneration-accelerating minimal amino acid sequences (X) selected from the group consisting of the Arg Gly Asp sequence (1), the Ile Lys Val Ala Val sequence (2), and the Tyr Ile Gly Ser Arg sequence (3) and an auxiliary amino acid sequence (Y), a polyalkylenepolyamine and/or polyarylenepolyamine (A) having a weight average molecular weight of 2,000 to 60,000, and a sheet (S).
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: August 18, 2009
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventors: Masato Kurokawa, Hiroaki Nakamura
  • Publication number: 20090136912
    Abstract: A carrier for cell culture is provided which improves the cell proliferativity in serum-free culture and which is free from risk from infection factor contamination. The gist of the features of the present invention is to be formed of a crosslinked poly (meth) acrylic acid (salt) particle (A) and an artificial polypeptide (P) having at least one cell-adhesive minimal amino acid sequence (X) in one molecule and to have a water retention value of from 2 to 50 g/g. The (A) is preferably a particle produced by reversed phase suspension polymerization of an aqueous monomer solution containing (meth)acrylic acid and/or an alkali metal salt of (meth)acrylic acid. The (P) preferably has at least one auxiliary amino acid sequence (Y) in one molecule of the (P). The (X) is preferably an Arg Gly Asp sequence.
    Type: Application
    Filed: March 13, 2007
    Publication date: May 28, 2009
    Applicant: SANYO CHEMICAL INDUSTRIES, LTD.
    Inventors: Masato Kurokawa, Kazuhiro Takahashi
  • Publication number: 20090019287
    Abstract: Method and system for embedding a unique and different digital watermark in digital contents for each access without increasing the overhear or load at the contents server. The contents server has a digital watermark-embedded contents storage unit for storing a plurality of digital contents where a different digital watermark is embedded, and a fingerprint performing unit for, adding to the digital contents the information specified using a bit row that is formed by a digital watermark being embedded for each part of the digital contents.
    Type: Application
    Filed: August 19, 2008
    Publication date: January 15, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Norishige Morimoto, Kohichi Kamijoh, Seiji Kobayashi, Masato Kurokawa
  • Patent number: 7469422
    Abstract: Method for embedding a unique and different digital watermark in digital contents for each access without increasing the overhead or load at the contents server. The contents server has a digital watermark-embedded contents storage unit for storing a plurality of digital contents where a different digital watermark is embedded, and a fingerprint performing unit for, adding to the digital contents the information specified using a bit row that is formed by a digital watermark being embedded into each part of the digital contents.
    Type: Grant
    Filed: August 7, 2003
    Date of Patent: December 23, 2008
    Assignee: International Business Machines Corporation
    Inventors: Norishige Morimoto, Kohichi Kamijoh, Seiji Kobayashi, Masato Kurokawa
  • Publication number: 20080233148
    Abstract: It is intended to provide a safe and efficient method of producing a virus which is free from animal-origin components in the whole process from culturing adhesive cells to producing the virus on an industrial scale by the cell culture. Namely, a method of producing a virus comprising: adhering adhesive cells to a support which has a polypeptide (P) having at least one cell-adhesive minimum amino acid sequence (X) per molecule, and is free from animal-origin components; culturing the adhesive cells in a medium free from animal-origin components; subculturing the cultured adhesive cells using a cell dispersing agent free from animal-origin components; and then inoculating and proliferating a virus in the cells obtained by culturing the adhesive cells.
    Type: Application
    Filed: July 19, 2005
    Publication date: September 25, 2008
    Applicants: Denka Seiken Co., Ltd., Sanyo Chemical Industries, Ltd.
    Inventors: Hikaru Kai, Masayuki Tsubaki, Masato Kurokawa
  • Patent number: 7199798
    Abstract: An object of the present invention is to provide a description method for efficiently representing contents of motion picture with a small data volume. The organization of the present invention (1) represents a trajectory of how each object has moved over time by using reference plane representing position information of each object, (2) sets a description unit based on a type of action of each object by using changes in shape of each object, (3) has actions of each object represented as each behavioral section, and (4) comprises a description facility capable of reading and interpreting definition of an object dependent on video contents, definition of classes of actions, and definition of interpretation of a scene by interaction of plural objects.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: April 3, 2007
    Assignee: International Business Machines Corp
    Inventors: Tomio Echigo, Masato Kurokawa, Junji Maeda, Alberto Tomita