Patents by Inventor Toshiichiro Oka

Toshiichiro Oka 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: 4301484
    Abstract: A cassette loading device of a tape recorder comprises a cassette holder and a pair of link mechanisms which are disposed to the right and to the left of the cassette holder and which operatively connect the cassette holder to the stationary portions of the tape recorder so as to allow the cassette holder to smoothly move between a cassette loading position and a disengaged position giving easy access to the cassette. Each of the pair of link mechanisms includes a first link arm that has one end rotatably mounted on the corresponding stationary portion and an opposite end slidably mounted on the cassette holder for travel within communicating straight and arcuate slot portions; a second link arm has one end rotatably mounted on the cassette holder and an opposite end slidably mounted on the corresponding stationary portion. The first and second link arms of each link mechanism intersect and pivot each other at their intersection.
    Type: Grant
    Filed: October 18, 1979
    Date of Patent: November 17, 1981
    Assignee: Victor Company of Japan, Limited
    Inventors: Masahiro Sawaguchi, Masami Sasaki, Hiroshi Hosoya, Toshiichiro Oka