Patents by Inventor Masayoshi Hirano

Masayoshi Hirano 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).

  • Patent number: 10283773
    Abstract: The present invention provides an active material which can increase the discharge capacity of a lithium-ion secondary battery as compared with the case using conventional LiMnPO4 as a positive electrode active material. The active material in accordance with the present invention contains a crystallite of LiMnPO4, the crystallite having a size of 20 to 93 nm in a direction perpendicular to a (060) plane thereof.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: May 7, 2019
    Assignee: TDK CORPORATION
    Inventors: Hisashi Suzuki, Keitaro Otsuki, Masayoshi Hirano
  • Publication number: 20180190988
    Abstract: The present invention provides an active material which can increase the discharge capacity of a lithium-ion secondary battery as compared with the case using conventional LiMnPO4 as a positive electrode active material. The active material in accordance with the present invention contains a crystallite of LiMnPO4, the crystallite having a size of 20 to 93 nm in a direction perpendicular to a (060) plane thereof.
    Type: Application
    Filed: February 27, 2018
    Publication date: July 5, 2018
    Applicant: TDK CORPORATION
    Inventors: Hisashi SUZUKI, Keitaro OTSUKI, Masayoshi HIRANO
  • Publication number: 20150070822
    Abstract: An electronic device includes: a housing; a holder configured to support a first substrate and is inserted into the housing; a second substrate disposed in the housing, at a side with respect to a direction in which the holder is inserted; and a mechanism configured to move the first substrate in the direction with the second substrate and to connect the first substrate to the second substrate.
    Type: Application
    Filed: August 29, 2014
    Publication date: March 12, 2015
    Inventor: Masayoshi HIRANO
  • Patent number: 8863376
    Abstract: The removing jig includes a frame member and an arm member. The arm member includes a pair of side plates each provided with an axial hole. The arm member further includes an engagement portion that engages with the lever portion at its tip. The frame member includes a contact portion that contacts with a back surface of the connector body, a pair of side frame plates each provided with a guide groove formed with respect to the axial hole, and a first window portion from which the engagement portion protrudes.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: October 21, 2014
    Assignee: Fujitsu Limited
    Inventors: Masayoshi Hirano, Eiji Makabe, Takashi Imamoto, Hiroshi Satoh
  • Patent number: 8500454
    Abstract: An electronic apparatus includes: a first connector; a second connector; a first electronic unit connectable to the first connector; a second electronic unit connectable to the second connector; and a printed circuit board that includes the first connector and the second connector between a first extended center line toward a unit board of the first electronic unit and a second extended center line toward a unit board of the second electronic unit on a first side of the printed circuit board when the first and second electronic units are connected to the first and second connectors, respectively.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: August 6, 2013
    Assignee: Fujitsu Limited
    Inventors: Masayoshi Hirano, Eiji Makabe, Takashi Imamoto
  • Patent number: 8455385
    Abstract: A method of manufacturing a lithium-ion secondary battery positive electrode comprises a coating material preparing step of preparing a positive electrode active material layer forming coating material by mixing a positive electrode active material, a binder, a conductive auxiliary, an organic solvent, and water; and an active material layer forming step of forming a positive electrode active material layer on a current collector by using the positive electrode active material layer forming coating material. The binder is polyvinylidene fluoride produced by emulsion polymerization. The positive electrode active material layer forming coating material is prepared in the coating material preparing step such that the amount of water added (% by mass) based on the total amount of the organic solvent and water and the pH of the positive electrode active material satisfy the following expression (1): 48?[the amount of water added+(4.25Ă—the pH of the positive electrode active material)]?52??(1).
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: June 4, 2013
    Assignee: TDK Corporation
    Inventors: Yousuke Miyaki, Kazuo Katai, Masayoshi Hirano, Kiyonori Hinoki
  • Patent number: 8451606
    Abstract: An electronic device includes: a chassis for housing an electronic unit; and a hold member capable of holding to a fan unit blowing air toward the electronic unit and attachable to and detachable from a plurality of positions of the chassis.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: May 28, 2013
    Assignee: Fujitsu Limited
    Inventors: Masayoshi Hirano, Eiji Makabe, Takashi Imamoto
  • Patent number: 8431227
    Abstract: The ceramic product provided by the present invention is provided with at least two ceramic members bonded to each other, and the bond parts between these ceramic members bonded to each other are formed from glass having leucite crystals precipitated within the glass matrix.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: April 30, 2013
    Assignee: Noritake Co., Ltd
    Inventors: Yosuke Takahashi, Sumihito Sago, Seiji Yamada, Masayoshi Hirano
  • Patent number: 8366968
    Abstract: An active material, an electrode, and a battery which exhibit high safety in overcharging tests, and methods of manufacturing them are provided. The active material comprises a first metal oxide particle 1 and a second metal oxide particle group 2 attached to a surface of the first metal oxide particle 1. The second metal oxide is at least one selected from the group consisting of zirconia, silica, and tin oxide. The first metal oxide particle 1 contains fluorine atoms from its surface to deepest part.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: February 5, 2013
    Assignee: TDK Corporation
    Inventors: Hisashi Suzuki, Masayoshi Hirano
  • Patent number: 8334009
    Abstract: An electrode producing method by an electrode producing apparatus has an inclining step of pressing a surface of a current collector sheet with projections extending outwardly from the surface, which is conveyed in a definite direction, to incline the projections in a direction opposite to the definite direction of the current collector sheet; and an applying step of applying a coating solution onto the current collector sheet, the projections of which have been inclined in the inclining step and which is conveyed in the definite direction, by a slit die. After the surface of the current collector sheet is pressed to incline the projections on the sheet surface in the opposite direction to the conveyance direction, the coating solution is applied onto the surface. Therefore, the coating solution can be uniformly applied onto the current collector sheet.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: December 18, 2012
    Assignee: TDK Corporation
    Inventors: Kazutoshi Emoto, Katsuo Naoi, Kiyonori Hinoki, Masahiro Saegusa, Masayoshi Hirano
  • Patent number: 8163332
    Abstract: An electrode manufacturing apparatus comprises a conveying section for conveying a current collector sheet having a plurality of through holes; a backup roll for guiding the conveyed current collector sheet; an applicator for supplying a coating liquid to the current collector sheet on the backup roll; and a nip roll for pressing a part of the current collector sheet where the coating liquid is not supplied yet from the applicator against the backup roll.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: April 24, 2012
    Assignee: TDK Corporation
    Inventors: Kazutoshi Emoto, Katsuo Naoi, Kiyonori Hinoki, Masayoshi Hirano
  • Publication number: 20110209618
    Abstract: The ceramic product provided by the present invention is provided with at least two ceramic members bonded to each other, and the bond parts between these ceramic members bonded to each other are formed from glass having leucite crystals precipitated within the glass matrix.
    Type: Application
    Filed: May 12, 2011
    Publication date: September 1, 2011
    Applicant: NORITAKE CO., LTD.
    Inventors: Yosuke Takahashi, Sumihito Sago, Seiji Yamada, Masayoshi Hirano
  • Publication number: 20110197439
    Abstract: The removing jig includes a frame member and an arm member. The arm member includes a pair of side plates each provided with an axial hole. The arm member further includes an engagement portion that engages with the lever portion at its tip. The frame member includes a contact portion that contacts with a back surface of the connector body, a pair of side frame plates each provided with a guide groove formed with respect to the axial hole, and a first window portion from which the engagement portion protrudes.
    Type: Application
    Filed: April 25, 2011
    Publication date: August 18, 2011
    Applicant: Fujitsu Limited
    Inventors: Masayoshi HIRANO, Eiji Makabe, Takashi Imamoto, Hiroshi Satoh
  • Patent number: 7968200
    Abstract: The ceramic product provided by the present invention is provided with at least two ceramic members bonded to each other, and the bond parts between these ceramic members bonded to each other are formed from glass having leucite crystals precipitated within the glass matrix.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: June 28, 2011
    Assignee: Noritake Co., Ltd
    Inventors: Yosuke Takahashi, Sumihito Sago, Seiji Yamada, Masayoshi Hirano
  • Publication number: 20110117754
    Abstract: An electronic apparatus includes: a first connector; a second connector; a first electronic unit connectable to the first connector; a second electronic unit connectable to the second connector; and a printed circuit board that includes the first connector and the second connector between a first extended center line toward a unit board of the first electronic unit and a second extended center line toward a unit board of the second electronic unit on a first side of the printed circuit board when the first and second electronic units are connected to the first and second connectors, respectively.
    Type: Application
    Filed: January 21, 2011
    Publication date: May 19, 2011
    Applicant: Fujitsu Limited
    Inventors: Masayoshi HIRANO, Eiji Makabe, Takashi Imamoto
  • Publication number: 20110103015
    Abstract: An electronic device includes: a chassis for housing an electronic unit; and a hold member capable of holding to a fan unit blowing air toward the electronic unit and attachable to and detachable from a plurality of positions of the chassis.
    Type: Application
    Filed: January 13, 2011
    Publication date: May 5, 2011
    Applicant: FUJITSU LIMITED
    Inventors: Masayoshi HIRANO, Eiji Makabe, Takashi Imamoto
  • Publication number: 20100301284
    Abstract: An active material, an electrode, and a battery which exhibit high safety in overcharging tests, and methods of manufacturing them are provided. The active material comprises a first metal oxide particle 1 and a second metal oxide particle group 2 attached to a surface of the first metal oxide particle 1. The second metal oxide is at least one selected from the group consisting of zirconia, silica, and tin oxide. The first metal oxide particle 1 contains fluorine atoms from its surface to deepest part.
    Type: Application
    Filed: May 26, 2010
    Publication date: December 2, 2010
    Applicant: TDK CORPORATION
    Inventors: Hisashi SUZUKI, Masayoshi Hirano
  • Publication number: 20100304217
    Abstract: The present invention provides an active material which can increase the discharge capacity of a lithium-ion secondary battery as compared with the case using conventional LiMnPO4 as a positive electrode active material. The active material in accordance with the present invention contains a crystallite of LiMnPO4, the crystallite having a size of 20 to 93 nm in a direction perpendicular to a (060) plane thereof.
    Type: Application
    Filed: May 21, 2010
    Publication date: December 2, 2010
    Applicant: TDK CORPORATION
    Inventors: Hisashi Suzuki, Keitaro Otsuki, Masayoshi Hirano
  • Publication number: 20100167125
    Abstract: A method of manufacturing a lithium-ion secondary battery positive electrode comprises a coating material preparing step of preparing a positive electrode active material layer forming coating material by mixing a positive electrode active material, a binder, a conductive auxiliary, an organic solvent, and water; and an active material layer forming step of forming a positive electrode active material layer on a current collector by using the positive electrode active material layer forming coating material. The binder is polyvinylidene fluoride produced by emulsion polymerization. The positive electrode active material layer forming coating material is prepared in the coating material preparing step such that the amount of water added (% by mass) based on the total amount of the organic solvent and water and the pH of the positive electrode active material satisfy the following expression (1): 48?[the amount of water added+(4.
    Type: Application
    Filed: December 22, 2009
    Publication date: July 1, 2010
    Applicant: TDK CORPORATION
    Inventors: Yousuke MIYAKI, Kazuo KATAI, Masayoshi HIRANO, Kiyonori HINOKI
  • Publication number: 20100075023
    Abstract: An electrode manufacturing apparatus comprises a conveying section for conveying a current collector sheet having a plurality of through holes; a backup roll for guiding the conveyed current collector sheet; an applicator for supplying a coating liquid to the current collector sheet on the backup roll; and a nip roll for pressing a part of the current collector sheet where the coating liquid is not supplied yet from the applicator against the backup roll.
    Type: Application
    Filed: September 16, 2009
    Publication date: March 25, 2010
    Applicant: TDK CORPORATION
    Inventors: Kazutoshi EMOTO, Katsuo NAOI, Kiyonori HINOKI, Masayoshi HIRANO