Patents by Inventor Yasuo Hirayama

Yasuo Hirayama 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).

  • Housing for an electrical connector
    Patent number: D317900
    Type: Grant
    Filed: April 18, 1989
    Date of Patent: July 2, 1991
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Yasuhiro Nagasaka, Yasuo Hirayama, Shigekazu Wakata, Shinichi Yamada, Nobuyuki Asakawa
  • Housing for electrical connector
    Patent number: D318043
    Type: Grant
    Filed: April 18, 1989
    Date of Patent: July 9, 1991
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Yasuhiro Nagasaka, Yasuo Hirayama, Shigekazu Wakata, Shinichi Yamada, Yoshihiro Tanaka
  • Housing for electrical connector
    Patent number: D318458
    Type: Grant
    Filed: April 18, 1989
    Date of Patent: July 23, 1991
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Yasuhiro Nagasaka, Yasuo Hirayama, Shigekazu Wakata
  • Housing for electrical connector
    Patent number: D318649
    Type: Grant
    Filed: April 18, 1989
    Date of Patent: July 30, 1991
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Yasuhiro Nagasaka, Yasuo Hirayama, Shigekazu Wakata, Shinichi Yamada, Yoshihiro Tanaka
  • Electrical connector housing
    Patent number: D319428
    Type: Grant
    Filed: July 3, 1989
    Date of Patent: August 27, 1991
    Assignee: Yazaki Corporation
    Inventors: Yasuhiro Nagasaka, Yasuo Hirayama, Ichiro Shibata, Tadahiro Sueyoshi, Masanori Tsuji, Yoshihiro Murakami, Takayuki Yamamoto, Masaru Fukuda
  • Electrical connector housing
    Patent number: D319625
    Type: Grant
    Filed: July 3, 1989
    Date of Patent: September 3, 1991
    Assignee: Yazaki Corporation
    Inventors: Yasuhiro Nagasaka, Yasuo Hirayama, Ichiro Shibata, Tadahiro Sueyoshi, Masanori Tsuji, Yoshihiro Murakami, Takayuki Yamamoto, Masaru Fukuda
  • Electrical connector housing
    Patent number: D320594
    Type: Grant
    Filed: July 3, 1989
    Date of Patent: October 8, 1991
    Assignee: Yazaki Corporation
    Inventors: Yasuhiro Nagasaka, Yasuo Hirayama, Ichiro Shibata, Tadahiro Sueyoshi, Masanori Tsuji, Yoshihiro Murakami, Takayuki Yamamoto, Masaru Fukuda
  • Housing for an electrical connector
    Patent number: D321505
    Type: Grant
    Filed: April 18, 1989
    Date of Patent: November 12, 1991
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Yasuhiro Nagasaka, Yasuo Hirayama, Shigekazu Wakata, Shinichi Yamada, Toshikazu Nohara
  • Housing for an electrical connector
    Patent number: D321506
    Type: Grant
    Filed: April 18, 1989
    Date of Patent: November 12, 1991
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Yasuhiro Nagasaka, Yasuo Hirayama, Shigekazu Wakata
  • Housing for an electrical connector
    Patent number: D321507
    Type: Grant
    Filed: April 18, 1989
    Date of Patent: November 12, 1991
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Yasuhiro Nagasaka, Yasuo Hirayama, Shigekazu Wakata, Shinichi Yamada, Nobuyuki Asakawa