Patents by Inventor Hitoshi Oda

Hitoshi Oda 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).

  • Photoelectron beam converting device and method of driving the same
    Patent number: 4906894
    Abstract: A photoelectron beam converting device including a semiconductor substrate having a p-n junction formed between an n-type region and a p-type region and an opening portion formed on the side of the semiconductor substrate. An electron beam is generated by a light which enters from the opening portion and by a reverse voltage to be applied to the p-n junction.
    Type: Grant
    Filed: March 28, 1989
    Date of Patent: March 6, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mamoru Miyawaki, Yukio Masuda, Ryuichi Arai, Nobutoshi Mizusawa, Takahiko Ishiwatari, Hitoshi Oda
  • Magnetic recording medium
    Patent number: 4587178
    Abstract: A magnetic recording medium comprising a support, a first layer formed on the support by evaporating cobalt or its alloy by an oblique-incidence vacuum evaporation technique, and a second plated layer made of cobalt or its alloy and formed by a wet plating. The cobalt alloy for the first layer substantially consists of, aside from cobalt, up to 30 wt % of Ni, Fe, Cu, W, Cr, Ru or a mixture thereof. On the other hand, the cobalt alloy for the second layer substantially consists of up to 40 wt % of Ni, up to 8 wt % of P and the balance of Co.
    Type: Grant
    Filed: July 26, 1982
    Date of Patent: May 6, 1986
    Assignee: Victor Company of Japan, Ltd.
    Inventors: Shigeo Shimizu, Toshio Kato, Hitoshi Oda, Masanobu Shigeta