Patents by Inventor Ryouichi Miyakawa

Ryouichi Miyakawa 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: 5349361
    Abstract: A vehicle antenna for AM/FM and MT waves including a first antenna element for MT waves vertically mounted on the vehicle roof and a second antenna element for AM/FM waves rotatably coupled to the top end of the first antenna element so that the second antenna element can be set at a desired angle relative to the roof of the vehicle. A trap element for blocking MT waves is installed near the lower end of the second antenna element.
    Type: Grant
    Filed: September 20, 1993
    Date of Patent: September 20, 1994
    Assignee: Harada Kogyo Kabushiki Kaisha
    Inventors: Yoshimi Egashira, Ryouichi Miyakawa
  • Patent number: 5321589
    Abstract: An apparatus that controls the light irradiation angle of a headlamp of vehicles including a feed screw rotatable by a motor, a movable piece that makes a reciprocating motion by the feed screw, an output shaft attached to the movable piece at one end and linked to a headlamp at another end so that the illumination angle of the headlamp is controlled by the advancing and withdrawing motion of the output shaft. The apparatus further includes an irradiation angle initial setting mechanism that is connected to the movable piece so that the irradiation angle can be set manually by adjusting the position of linkage of the headlamp and the output shaft via the movable piece. With this structure, any initial setting of the headlamp angle can be accomplished regardless of the type of vehicles via a compact and simple structure.
    Type: Grant
    Filed: August 7, 1992
    Date of Patent: June 14, 1994
    Assignee: Harada Kogyo Kabushiki Kaisha
    Inventors: Masaki Shinkawa, Ryouichi Miyakawa, Hiroshi Komachi
  • Patent number: D333660
    Type: Grant
    Filed: August 8, 1990
    Date of Patent: March 2, 1993
    Assignee: 501 Harada Industry Co., Ltd.
    Inventor: Ryouichi Miyakawa
  • Patent number: D387355
    Type: Grant
    Filed: September 19, 1995
    Date of Patent: December 9, 1997
    Assignee: Harada Industry Co., Ltd.
    Inventors: Masaki Shinkawa, Ryouichi Miyakawa
  • Patent number: D405452
    Type: Grant
    Filed: December 10, 1996
    Date of Patent: February 9, 1999
    Assignee: Harada Industry Co., Ltd.
    Inventors: Masaki Shinkawa, Ryouichi Miyakawa, Hiroshi Komachi, Takashi Sakoda