Patents by Inventor Katsuyoshi Oishi

Katsuyoshi Oishi 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: 5557476
    Abstract: A foldable outside rearview mirror assembly includes a shaft arranged on an extending portion of the base, a frame having an and plate rotatably inserted into a root portion of the shaft, a mirror housing secured on the frame, a positioning device is mounted on the periphery of the shaft, a first washer is arranged at the upper portion of the positioning device, a second washer is secured on the upper end of the shaft, and a coil spring is arranged around the outer periphery of the shaft between the first and the second washers. The positioning device has a plate connected to the shaft in locking the rotation thereof, several convex portions provided on the same circumference of the plate, and several concaves formed at the frame end plate to insertingly engage with the convex portions. Thereby the frame of the outside rearview mirror is prevented from moving vertically and the chattering is not caused on the mirror surface at the time of the outside mirror foldably rotates.
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: September 17, 1996
    Assignee: Eiji Murakami
    Inventor: Katsuyoshi Oishi
  • Patent number: 5467222
    Abstract: A foldable outside rearview mirror assembly includes a shaft arranged on an extending portion of a base, a frame having an end plate rotatably inserted into a root portion of the shaft, a mirror housing secured on the frame, a positioning device is mounted on the periphery of the shaft, a first washer is arranged at the upper portion of the positioning device, a second washer is secured on the upper end of the shaft, and a coil spring is arranged around the outer periphery of the shaft between the first and the second washers. The positioning device has a plate connected to the shaft in locking the rotation thereof, several convex portions provided on the same circumference of the plate, and several concaves formed at the frame end plate to insertingly engage with the convex portions. Thereby the frame of the outside rearview mirror is prevented from moving vertically and the chattering is not caused on the mirror surface at the time of the outside mirror foldably rotates.
    Type: Grant
    Filed: December 14, 1994
    Date of Patent: November 14, 1995
    Assignee: Eiji Murakami
    Inventor: Katsuyoshi Oishi
  • Patent number: 5384660
    Abstract: A foldable outside rearview mirror assembly includes a shaft arranged on an extending portion of a base, a frame having an end plate rotatably inserted into a root portion of the shaft, a mirror housing secured on the frame, a positioning device is mounted on the periphery of the shaft, a first washer is arranged at the upper portion of the positioning device, a second washer is secured on the upper end of the shaft, and a coil spring is arranged around the outer periphery of the shaft between the first and the second washers. The positioning device has a plate connected to the shaft in locking the rotation thereof, several convex portions provided on the same circumference of the plate, and several concaves formed at the frame end plate to insertingly engage with the convex portions. Thereby the frame of the outside rearview mirror is prevented from moving vertically and the chattering is not caused on the mirror surface at the time of the outside mirror foldably rotates.
    Type: Grant
    Filed: July 26, 1991
    Date of Patent: January 24, 1995
    Assignee: Eiji Murakami
    Inventor: Katsuyoshi Oishi