Patents by Inventor Hajime Yui

Hajime Yui 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: 20180154558
    Abstract: Disclosed is a method for manufacturing a substrate-integrated gasket using screen printing. The method includes: a step for forming, on a surface of a substrate by means of screen printing, a coating layer of a paste for forming a gasket; and a step for hardening the coating layer by pressing, at a predetermined height, a coating layer correction member to the coating layer. The cross-sectional shape of the coating layer formed on the surface of the substrate is corrected by means of the coating layer correction member, and in such state, the coating layer hardens to be a gasket, thereby forming a gasket having a highly accurate cross-sectional shape.
    Type: Application
    Filed: June 2, 2016
    Publication date: June 7, 2018
    Inventors: Hajime YUI, Tetsuya URAKAWA, Kenichi OBA
  • Publication number: 20180099439
    Abstract: The purpose of this invention is to make it easy to handle all-rubber gaskets. To achieve this purpose, a gasket is characterized in that a gasket body of only rubber is combined with a carrier film that is made from a resin film to hold the gasket body in a non-adhesive state. A three-dimensional portion having a shape that is deformed along the external shape of the gasket body is provided at a position where the gasket body and a plane of the carrier film overlap, and a portion of the gasket body is contained in the three-dimensional section. The gasket body is used as a gasket for fuel cells incorporated into a fuel cell stack.
    Type: Application
    Filed: February 17, 2016
    Publication date: April 12, 2018
    Inventors: Hidetoshi SASO, Yoshihiro KURANO, Takayuki HORIMOTO, Tetsuya URAKAWA, Kenichi OBA, Takuro NISHIMURA, Hajime YUI, Takahiro HAYASHI
  • Publication number: 20170365863
    Abstract: The invention provides gasket for a fuel battery provided in a fuel battery cell in which an intermediate part including an MEA is interposed between a pair of separators, and structured such that each of a gasket main body retained to one separator of the pair of separators and a gasket main body retained to the other separator comes into contact with the intermediate part at positions where they overlap planarly, wherein bank portions for fixed size stop according to a gasket thickness are integrally formed in both sides or one side in a width direction of both the gasket main bodies. The bank portions for fixed size stop are preferably supported by convex portions which are provided in the separators. Therefore, it is possible to inhibit gasket main bodies from being compressed beyond supposition in the case that contact portions of the gasket main bodies are compressed.
    Type: Application
    Filed: January 6, 2016
    Publication date: December 21, 2017
    Applicant: Nok Corporation
    Inventors: Takayuki HORIMOTO, Hajime YUI
  • Patent number: 9350034
    Abstract: To improve assembly precision of a fuel cell by improving a sealing property. A first gasket 12 is integrally formed with a first gas diffusion layer 11 and a second gasket 14 is integrally formed with a second gas diffusion layer 13, and a hinge portion 15 connects the first gasket 12 to the second gasket 14. The gas diffusion layer incorporated gasket sandwiches a membrane-electrode from both sides in the thickness direction. A seal protrusion 12c is formed in a surface of the first gasket 12 or the second gasket 14 and comes into close contact with the membrane-electrode.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: May 24, 2016
    Assignee: NOK CORPORATION
    Inventors: Hajime Yui, Shigeru Watanabe, Kenichi Oba
  • Patent number: 9196911
    Abstract: A gas diffusion layer-integrated gasket 1 includes a first gasket 12 which is integrally molded to a periphery of a first gas diffusion layer 11 and a second gasket 14 which is integrally molded to a periphery of a second gas diffusion layer 13, and a hinge part 15 which connects the first gasket 12 and second gasket 14 to each other. The first and second gas diffusion layers sandwich a membrane-electrode assembly 2 in which catalytic electrode layers are provided on both surfaces of an electrolytic membrane from both sides, wherein a seal protrusion 12c is formed on a surface which is in tight contact with the membrane-electrode assembly 2.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: November 24, 2015
    Assignee: NOK CORPORATION
    Inventors: Hajime Yui, Shigeru Watanabe, Kenichi Oba
  • Publication number: 20110014540
    Abstract: To improve assembly precision of a fuel cell by improving a sealing property. A first gasket 12 is integrally formed with a first gas diffusion layer 11 and a second gasket 14 is integrally formed with a second gas diffusion layer 13, and a hinge portion 15 connects the first gasket 12 to the second gasket 14. The gas diffusion layer incorporated gasket sandwiches a membrane-electrode from both sides in the thickness direction. A seal protrusion 12c is formed in a surface of the first gasket 12 or the second gasket 14 and comes into close contact with the membrane-electrode.
    Type: Application
    Filed: June 23, 2010
    Publication date: January 20, 2011
    Applicant: NOK CORPORATION
    Inventors: Hajime Yui, Shigeru Watanabe, Kenichi Oba
  • Publication number: 20110014541
    Abstract: A gas diffusion layer-integrated gasket 1 includes a first gasket 12 which is integrally molded to a periphery of a first gas diffusion layer 11 and a second gasket 14 which is integrally molded to a periphery of a second gas diffusion layer 13, and a hinge part 15 which connects the first gasket 12 and second gasket 14 to each other. The first and second gas diffusion layers sandwich a membrane-electrode assembly 2 in which catalytic electrode layers are provided on both surfaces of an electrolytic membrane from both sides, wherein a seal protrusion 12c is formed on a surface which is in tight contact with the membrane-electrode assembly 2.
    Type: Application
    Filed: June 23, 2010
    Publication date: January 20, 2011
    Applicant: NOK CORPORATION
    Inventors: Hajime Yui, Shigeru Watanabe, Kenichi Oba
  • Patent number: 7662699
    Abstract: An object is to provide a technology capable of improving a manufacturing yield of semiconductor devices by preventing scattering of irregular-shaped scraps formed at the time of dicing. To achieve the above object, for dicing lines, by which an irregular-shaped outer periphery may possibly be cut off, among a plurality of dicing lines, formation of the dicing lines starts from an outside of a semiconductor wafer, and after the semiconductor wafer is cut off partway, formation of the dicing lines is ended before reaching the irregular-shaped outer periphery formed on a outer periphery of the semiconductor wafer. For other dicing lines, formation of the dicing lines starts from the outside of the semiconductor wafer, and after the semiconductor wafer is cut off, is ended outside the semiconductor wafer.
    Type: Grant
    Filed: November 24, 2005
    Date of Patent: February 16, 2010
    Assignee: Renesas Technology Corp.
    Inventors: Hajime Yui, Hisashi Muramatsu
  • Publication number: 20090162993
    Abstract: An object is to provide a technology capable of improving a manufacturing yield of semiconductor devices by preventing scattering of irregular-shaped scraps formed at the time of dicing. To achieve the above object, for dicing lines, by which an irregular-shaped outer periphery may possibly be cut off, among a plurality of dicing lines, formation of the dicing lines starts from an outside of a semiconductor wafer, and after the semiconductor wafer is cut off partway, formation of the dicing lines is ended before reaching the irregular-shaped outer periphery formed on a outer periphery of the semiconductor wafer. For other dicing lines, formation of the dicing lines starts from the outside of the semiconductor wafer, and after the semiconductor wafer is cut off, is ended outside the semiconductor wafer.
    Type: Application
    Filed: November 24, 2005
    Publication date: June 25, 2009
    Inventors: Hajime Yui, Hisashi Muramatsu