Patents by Inventor Koichi Arita

Koichi Arita 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).

  • Piston seal and disc brake using the piston seal
    Publication number: 20070256903
    Abstract: A piston seal of a disc brake can stabilize the amount of rollback of a piston by reducing thermal expansion and a decrease in modulus of elasticity of the piston seal caused by an increase in temperature, thereby preventing a driver from feeling that the brake operation is unnatural. The piston seal is formed of a rubber composition in which at least 100 parts by weight or more of carbon black is added to 100 parts by weight of ethylene propylene rubber.
    Type: Application
    Filed: July 9, 2007
    Publication date: November 8, 2007
    Applicants: NISSIN KOGYO CO., LTD., FUKOKU CO., LTD.
    Inventors: Toru Noguchi, Kazuhito Kawata, Takashi Wanibuchi, Koichi Arita
  • Piston seal and disc brake using the piston seal
    Patent number: 7255207
    Abstract: A piston seal of a disc brake can stabilize the amount of rollback of a piston by reducing thermal expansion and a decrease in modulus of elasticity of the piston seal caused by an increase in temperature, thereby preventing a driver from feeling that the brake operation is unnatural. The piston seal is formed of a rubber composition in which at least 100 parts by weight or more of carbon black is added to 100 parts by weight of ethylene propylene rubber.
    Type: Grant
    Filed: April 15, 2004
    Date of Patent: August 14, 2007
    Assignees: Nissin Kogyo Co., Ltd., Fukoku Co., Ltd.
    Inventors: Toru Noguchi, Kazuhito Kawata, Takashi Wanibuchi, Koichi Arita
  • Piston seal and disc brake using the piston seal
    Publication number: 20040256187
    Abstract: A piston seal of a disc brake can stabilize the amount of rollback of a piston by reducing thermal expansion and a decrease in modulus of elasticity of the piston seal caused by an increase in temperature, thereby preventing a driver from feeling that the brake operation is unnatural. The piston seal is formed of a rubber composition in which at least 100 parts by weight or more of carbon black is added to 100 parts by weight of ethylene propylene rubber.
    Type: Application
    Filed: April 15, 2004
    Publication date: December 23, 2004
    Applicants: NISSIN KOGYO CO., LTD., FUKOKU CO., LTD.
    Inventors: Toru Noguchi, Kazuhito Kawata, Takashi Wanibuchi, Koichi Arita
  • Semiconductor device having capacitor and manufacturing apparatus thereof
    Patent number: 6126752
    Abstract: A semiconductor device comprising an integrated circuit and a capacitor. In this capacitor, a bottom electrode, a dielectric film and a top electrode are formed, independently of the integrated circuit, on the interlayer insulating film, and the top electrode and bottom electrode are connected with metal interconnections through contact holes opened in the protective film for protecting the surface of the capacitor. In this constitution, either the top electrode or the bottom electrode is connected the bias line of the integrated circuit, and the other is connected to the ground line, so that extraneous emission may be reduced without having to connect the capacitor outside.
    Type: Grant
    Filed: October 9, 1997
    Date of Patent: October 3, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Eiji Fujii, Yasuhiro Shimada, Yasuhiro Uemoto, Shinitirou Hayashi, Tooru Nasu, Koichi Arita, Atsuo Inoue, Akihiro Matsuda, Masaki Kibe, Tatsuo Ootsuki
  • Semiconductor device having capacitor and manufacturing method thereof
    Patent number: 6080617
    Abstract: A semiconductor device comprising an integrated circuit and a capacitor. In this capacitor, a bottom electrode, a dielectric film and a top electrode are formed, independently of the integrated circuit, on the interlayer insulating film, and the top electrode and bottom electrode are connected with metal interconnections through contact holes opened in the protective film for protecting the surface of the capacitor. In this constitution, either the top electrode or the bottom electrode is connected the bias line of the integrated circuit, and the other is connected to the ground line, so that extraneous emission may be reduced without having to connect the capacitor outside.
    Type: Grant
    Filed: October 15, 1997
    Date of Patent: June 27, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Eiji Fujii, Yasuhiro Shimada, Yasuhiro Uemoto, Shinitirou Hayashi, Tooru Nasu, Koichi Arita, Atsuo Inoue, Akihiro Matsuda, Masaki Kibe, Tatsuo Ootsuki
  • Semiconductor device having capacitior and manufacturing method thereof
    Patent number: 5717233
    Abstract: A semiconductor device comprising an integrated circuit and a capacitor. In this capacitor, a bottom electrode, a dielectric film and a top electrode are formed, independently of the integrated circuit, on the interlayer insulating film, and the top electrode and bottom electrode are connected with metal interconnections through contact holes opened in the protective film for protecting the surface of the capacitor. In this constitution, either the top electrode or the bottom electrode is connected the bias line of the integrated circuit, and the other is connected to the ground line, so that extraneous emission may be reduced without having to connect the capacitor outside.
    Type: Grant
    Filed: January 6, 1997
    Date of Patent: February 10, 1998
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Eiji Fujii, Yasuhiro Shimada, Yasuhiro Uemoto, Shinitirou Hayashi, Tooru Nasu, Koichi Arita, Atsuo Inoue, Akihiro Matsuda, Masaki Kibe, Tatsuo Ootsuki