Patents by Inventor Hidemasa Kawai

Hidemasa Kawai 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: 11094922
    Abstract: A negative electrode active material slurry is applied to one surface of a strip-shaped negative electrode core so as to form multiple lines of the negative electrode active material slurry, the lines extending in an X direction and being spaced from each other in a Y direction. Subsequently, while keeping the negative electrode core aloft, first hot air is blown toward the negative electrode core from at least a lower side in a vertical direction, and then, while keeping the negative electrode core aloft, first cooling air having a lower temperature than the first hot air is blown toward the negative electrode core from at least the lower side in the vertical direction so as to decrease the temperature of the negative electrode core to 40° C. or lower.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: August 17, 2021
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Hidemasa Kawai, Koichi Katayama, Haruya Nakai
  • Publication number: 20200251721
    Abstract: A negative electrode active material slurry is applied to one surface of a strip-shaped negative electrode core so as to form multiple lines of the negative electrode active material slurry, the lines extending in an X direction and being spaced from each other in a Y direction. Subsequently, while keeping the negative electrode core aloft, first hot air is blown toward the negative electrode core from at least a lower side in a vertical direction, and then, while keeping the negative electrode core aloft, first cooling air having a lower temperature than the first hot air is blown toward the negative electrode core from at least the lower side in the vertical direction so as to decrease the temperature of the negative electrode core to 40° C. or lower.
    Type: Application
    Filed: December 16, 2019
    Publication date: August 6, 2020
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Hidemasa Kawai, Koichi Katayama, Haruya Nakai
  • Patent number: 9005736
    Abstract: An electronic component manufacturing method that efficiently grinds a cover layer provided on a substrate even when the substrate is warped includes the step of forming first grooves at intervals in a cover layer provided on a substrate by repeating grinding with a rotary blade at a pitch more than a thickness W of the rotary blade. Next, at least portions provided in the cover layer along the first grooves are removed to reduce the thickness of the cover layer by repeating grinding at a pitch equal to or less than the thickness W of the rotary blade.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: April 14, 2015
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Hidemasa Kawai
  • Patent number: 8726494
    Abstract: An elastic material, in which at least the surface thereof is adhesive and conductive, is provided on a plate, and while a substrate constituting a component of an electronic part is held on the surface of the elastic material by the adhesiveness of the elastic material, an element such as a semiconductor chip is mounted at a fixed location on the substrate.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: May 20, 2014
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Akio Katsube, Hideo Nakagoshi, Hidemasa Kawai
  • Publication number: 20120251791
    Abstract: An electronic component manufacturing method that efficiently grinds a cover layer provided on a substrate even when the substrate is warped includes the step of forming first grooves at intervals in a cover layer provided on a substrate by repeating grinding with a rotary blade at a pitch more than a thickness W of the rotary blade. Next, at least portions provided in the cover layer along the first grooves are removed to reduce the thickness of the cover layer by repeating grinding at a pitch equal to or less than the thickness W of the rotary blade.
    Type: Application
    Filed: June 14, 2012
    Publication date: October 4, 2012
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventor: Hidemasa KAWAI
  • Patent number: 8034475
    Abstract: A secondary battery includes an anode for a secondary battery, a cathode which absorbs and discharges lithium ions, and an electrolyte which is placed between the anode for the secondary battery and the cathode. The anode for the secondary battery includes an anode active material layer which absorbs and discharges lithium ions, the anode active material layer including a first layer including carbon as a chief ingredient, and a second layer including at least one first element having a theoretical capacity greater than a theoretical capacity of graphite, and at least one second element which has a theoretical capacity equal to or less than the theoretical capacity of graphite. The second layer includes particles, and the particles include the first element and the second element.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: October 11, 2011
    Assignee: NEC Corporation
    Inventors: Hironori Yamamoto, Yutaka Bannai, Mariko Miyachi, Jiro Iriyama, Hidemasa Kawai, Masato Shirakata
  • Publication number: 20100248031
    Abstract: A secondary battery includes an anode for a secondary battery, a cathode which absorbs and discharges lithium ions, and an electrolyte which is placed between the anode for the secondary battery and the cathode. The anode for the secondary battery includes an anode active material layer which absorbs and discharges lithium ions, the anode active material layer including a first layer including carbon as a chief ingredient, and a second layer including at least one first element having a theoretical capacity greater than a theoretical capacity of graphite, and at least one second element which has a theoretical capacity equal to or less than the theoretical capacity of graphite. The second layer includes particles, and the particles include the first element and the second element.
    Type: Application
    Filed: June 7, 2010
    Publication date: September 30, 2010
    Applicant: NEC Corporation
    Inventors: Hironori Yamamoto, Yutaka Bannai, Mariko Miyachi, Jiro Iriyama, Hidemasa Kawai, Masato Shirakata
  • Patent number: 7763387
    Abstract: Since a first layer (a carbon layer 2a) whose chief ingredient is carbon and a second layer (Li absorbing layer 3a) containing particles having a theoretical capacity greater than that of graphite are formed on anode collector 1a, high capacity and high operation voltage can be realized. Since a element having a theoretical capacity equal to or less than that of graphite is added to the particles constituting this second layer, expansion and contraction of volume according to the charge and discharge are suppressed. This enables capacity deterioration to be suppressed even though cycles go on.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: July 27, 2010
    Assignee: NEC Corporation
    Inventors: Hironori Yamamoto, Yutaka Bannai, Mariko Miyachi, Jiro Iriyama, Hidemasa Kawai, Masato Shirakata
  • Publication number: 20100018041
    Abstract: An elastic material, in which at least the surface thereof is adhesive and conductive, is provided on a plate, and while a substrate constituting a component of an electronic part is held on the surface of the elastic material by the adhesiveness of the elastic material, an element such as a semiconductor chip is mounted at a fixed location on the substrate.
    Type: Application
    Filed: October 6, 2009
    Publication date: January 28, 2010
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Akio Katsube, Hideo Nakagoshi, Hidemasa Kawai
  • Patent number: 7624492
    Abstract: An elastic material, in which at least the surface thereof is adhesive and conductive, is provided on a plate, and while a substrate constituting a component of an electronic part is held on the surface of the elastic material by the adhesiveness of the elastic material, an element such as a semiconductor chip is mounted at a fixed location on the substrate.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: December 1, 2009
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Akio Katsube, Hideo Nakagoshi, Hidemasa Kawai
  • Patent number: 7118831
    Abstract: An anode with a multi-layer structure including a first layer (21) having carbon as a main component, and a second layer (22) having lithium-ion conductivity and including a material as a main component thereof which can insert and extract lithium ions, or a multi-layer structure including a third layer (23) containing lithium in addition to the first layer and the second layer, and a lithium secondary battery including the same. The lithium secondary battery can be provided in which the battery capacity is substantially enhanced in the voltage range where the battery is actually used while maintaining the higher charge-discharge efficiency and the excellent cycle performance.
    Type: Grant
    Filed: April 9, 2003
    Date of Patent: October 10, 2006
    Assignee: NEC Corporation
    Inventors: Yutaka Bannai, Hironori Yamamoto, Mariko Miyachi, Ikiko Yamazaki, Koji Utsugi, Jiro Iriyama, Tamaki Miura, Mitsuhiro Mori, Hidemasa Kawai
  • Patent number: 6902844
    Abstract: A film-sealed nonaqueous electrolyte battery comprises: a battery element including a non-aqueous electrolyte; a film case having at least a sealant polymer resin film for sealing the battery element; at least a lead terminal extending from the battery element and projecting from the film case, and the lead terminal with a surface having a contact area in contact directly with the sealant polymer resin film, and at least the contact area of the surface of the lead terminal is coated with an anti-corrosion coating film, wherein the anti-corrosion coating film includes: (A) a polymer of structural units of a phenolic compound, and at least a part of the structural units includes a substituent which comprises an amino group or a substituted amino group; (B) a phosphate compound; and (C) a titanium fluorine compound.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: June 7, 2005
    Assignees: NEC Corporation, NEC Tokin Corporation, Nihon Parkerizing Co., Ltd.
    Inventors: Hiroshi Yageta, Hidemasa Kawai, Masato Shirakata, Tetsuya Takashima, Ikuo Kojima, Norihide Ohyama, Hiroyuki Iizuka
  • Publication number: 20050089757
    Abstract: An anode with a multi-layer structure including a first layer (21) having carbon as a main component, and a second layer (22) having lithium-ion conductivity and including a material as a main component thereof which can insert and extract lithium ions, or a multi-layer structure including a third layer (23) containing lithium in addition to the first layer and the second layer, and a lithium secondary battery including the same. The lithium secondary battery can be provided in which the battery capacity is substantially enhanced in the voltage range where the battery is actually used while maintaining the higher charge-discharge efficiency and the excellent cycle performance.
    Type: Application
    Filed: April 9, 2003
    Publication date: April 28, 2005
    Inventors: Yutaka Bannai, Hironori Yamamoto, Mariko Miyachi, Ikiko Yamazaki, Koji Utsugi, Jiro Iriyama, Tamaki Miura, Mitsuhiro Mori, Hidemasa Kawai
  • Publication number: 20050084758
    Abstract: Since a first layer (a carbon layer 2a) whose chief ingredient is carbon and a second layer (Li absorbing layer 3a) containing particles having a theoretical capacity greater than that of graphite are formed on anode collector 1a, high capacity and high operation voltage can be realized. Since a element having a theoretical capacity equal to or less than that of graphite is added to the particles constituting this second layer, expansion and contraction of volume according to the charge and discharge are suppressed. This enables capacity deterioration to be suppressed even though cycles go on.
    Type: Application
    Filed: May 22, 2003
    Publication date: April 21, 2005
    Inventors: Hironori Yamamoto, Yutaka Bannai, Mariko Miyachi, Jiro Iriyama, Hidemasa Kawai, Masato Shirakata
  • Publication number: 20020146621
    Abstract: A film-sealed nonaqueous electrolyte battery comprises: a battery element including a non-aqueous electrolyte; a film case having at least a sealant polymer resin film for sealing the battery element; at least a load terminal extending from the battery element and projecting from the film case, and the lead terminal with a surface having a contact area in contact directly with the sealant polymer resin film, and at least the contact area of the surface of the lead terminal is coated with an anti-corrosion coating film, wherein the anti-corrosion coating film includes: (A) a polymer of structural units of a phenolic compound, and at least a part of the structural units includes a substituent which comprises an amino group or a substituted amino group; (B) a phosphate compound; and (C) a titanium fluorine compound.
    Type: Application
    Filed: January 31, 2002
    Publication date: October 10, 2002
    Applicant: NEC CORPORATION
    Inventors: Hiroshi Yageta, Hidemasa Kawai, Masato Shirakata, Tetsuya Takashima, Ikuo Kojima, Norihide Ohyama, Hiroyuki Iizuka
  • Patent number: 5811913
    Abstract: In a piezoelectric transformer, a piezoelectrically inactive region 11 is provided between a driving portion 22 and a power generating portion 31. The power generating portion 31 extends longitudinally of the piezoelectric body 1 and is provided with a pair of top and bottom electrodes 7T and 7B on its major surfaces. The driving portion 22 is provided with a side electrode 5 on a side surface perpendicular to the width direction. Other electrodes 50T and 50B are also provided so as to be parallel to the electrodes 7T and 7B. The power generating portion 31 is polarized in the width direction and the thickness direction of the piezoelectric body and the driving portion 22 is polarized in the width direction of the piezoelectric body 1. By regulating width of the piezoelectrically inactive region 11 provided between the electrode 50T (50B) of the driving portion 22 and the electrode 7T (7B) of the power generating portion 31, the transforming ratio can be regulated.
    Type: Grant
    Filed: June 18, 1996
    Date of Patent: September 22, 1998
    Assignee: NEC Corporation
    Inventor: Hidemasa Kawai
  • Patent number: 5334909
    Abstract: A microwave tube collector assembly includes a metal cylinder and a chromium oxide film. The metal cylinder has at least a layer of a chromium alloy on its overall inner circumferential surface and is closed at one end thereof. The a chromium oxide film is formed on the basis of the chromium alloy to cover the inner circumferential surface of the metal cylinder.
    Type: Grant
    Filed: June 30, 1992
    Date of Patent: August 2, 1994
    Assignee: NEC CorporationCorporation
    Inventor: Hidemasa Kawai
  • Patent number: D642978
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: August 9, 2011
    Assignee: Hitachi Vehicle Energy, Ltd
    Inventors: Yutaka Sato, Ryuji Kono, Mitsuru Koseki, Hidemasa Kawai, Hideyuki Shibanuma, Naoki Kimura, Keisuke Sawada, Fujio Hirano, Takuro Tsunaki, Takenori Ishizu, Kiyoyuki Sekine, Kinya Aota, Kouichi Kajiwara, Sho Saimaru
  • Patent number: D644176
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: August 30, 2011
    Assignee: Hitachi Vehicle Energy, Ltd.
    Inventors: Yutaka Sato, Ryuji Kono, Mitsuru Koseki, Hidemasa Kawai, Hideyuki Shibanuma, Naoki Kimura, Keisuke Sawada, Fujio Hirano, Takuro Tsunaki, Takenori Ishizu, Kiyoyuki Sekine, Kinya Aota, Kouichi Kajiwara, Sho Saimaru
  • Patent number: D644178
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: August 30, 2011
    Assignee: Hitachi Vehicle Energy, Ltd.
    Inventors: Yutaka Sato, Ryuji Kono, Mitsuru Koseki, Hidemasa Kawai, Hideyuki Shibanuma, Naoki Kimura, Keisuke Sawada, Fujio Hirano, Takuro Tsunaki, Takenori Ishizu, Kiyoyuki Sekine, Kinya Aota, Kouichi Kajiwara, Sho Saimaru