Patents by Inventor Minoru Okugawa

Minoru Okugawa 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).

  • Optical connector assembly
    Patent number: 5283680
    Abstract: An optical connector assembly (1) for connecting an optical fiber (9), an optical element (4) (light-emitting element or light-receiving element), and an electric 5 circuit together. A bolt (32) of an optical fiber-mounting fitting in which the optical fiber (9) is inserted in the hole of an electric seal (32) and a bolt (31), is screwed into a threaded hole formed in a housing (2) of the plug (1) that accommodates the optical element (4) in order to couple the optical fiber (9) to the plug (1). The connection between the optical element (4) and the electric circuit is accomplished by a jack (20) and the plug (1) is provided with a lock mechanism based on a push-type lever (20), featuring improved sealing performance against water, oil, dust and dirt.
    Type: Grant
    Filed: June 18, 1992
    Date of Patent: February 1, 1994
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Minoru Okugawa, Masakazu Moritoki, Yasuyoshi Suzuki
  • Optical comparator circuit
    Patent number: 5229656
    Abstract: An optical connector assembly (1) for connecting an optical fiber (9), an optical element (4) (light-emitting element or light-receiving element), and an electric circuit together. A bolt (32) of an optical fiber-mounting fitting in which the optical fiber (9) is inserted in the hole of an electic seal (32) and a bolt (31), is screwed into a threaded hole formed in a housing (2) of the plug (1) that accommodates the optical element (4) in order to couple the optical fiber (9) to the plug (1). The connection between the optical element (4) and the electric circuit is accomplished by a jack (20) and the plug (1) is provided with a lock mechanism based on a push-type lever (20), featuring improved sealing performance against water, oil, dust and dirt.
    Type: Grant
    Filed: June 18, 1992
    Date of Patent: July 20, 1993
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Minoru Okugawa, Masakazu Moritoki, Yasuyoshi Suzuki
  • Optical connector assembly
    Patent number: 5163109
    Abstract: An optical connector assembly (1) for connecting an optical fiber (9), an optical element (4) (light-emitting element or light-receiving element), and an electric circuit together. A bolt (32) of an optical fiber-mounting fitting in which the optical fiber (9) is inserted in the hole of an elastic seal and a bolt (31), is screwed into a threaded hole formed in a housing (2) of the plug (1) that accommodates the optical element (4) in order to couple the optical fiber (9) to the plug (1). The connection between the optical element (4) and the electric circuit is accomplished by a jack (20) and the plug (1) is provided with a lock mechanism based on a push-type lever (20), featuring improved sealing performance against water, oil, dust and dirt.
    Type: Grant
    Filed: June 27, 1990
    Date of Patent: November 10, 1992
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Minoru Okugawa, Masakazu Moritoki, Yasuyoshi Suzuki