Patents by Inventor Koji Kobashi

Koji Kobashi 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: 5066938
    Abstract: A diamond thin film thermistor having a substrate, an electrically insulating diamond layer formed on the substrate by vapor-phase synthesis, a semiconducting diamond layer as a temperature-sensing part on the electrically insulating diamond layer by vapor-phase synthesis, and metal thin film electrodes attached to the semiconducting diamond layer. A plurality of such diamond thin film thermistors can simultaneously be formed on a single substrate, and the substrate is cut with a dicing saw to provide individual diamond thin film thermistor chips of the same quality.
    Type: Grant
    Filed: October 11, 1990
    Date of Patent: November 19, 1991
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Koji Kobashi, Koichi Miyata, Kazuo Kumagai, Takayoshi Inoue, Hiroyuki Tachibana, Akimitsu Nakaue
  • Patent number: 4940015
    Abstract: A plasma reactor for diamond synthesis includes a microwave generator, a waveguide connected to the microwave generator, an antenna disposed within the waveguide to direct the microwaves propagated along the waveguide toward the interior of a reaction chamber, a microwave window provided above the upper wall of the waveguide, a reaction chamber defined by (a) a cylindrical bottom member hermetically joined to the microwave window and the waveguide, (b) a reaction gas inlet port and a gas outlet port in the side wall thereof, and (c) a substrate holder disposed within the reaction chamber in facing opposition to the microwave window so as to be moved toward and away from the microwave window to adjust the distance between the microwave window and the substrate holder to generate a desired microwave resonance mode.
    Type: Grant
    Filed: July 13, 1989
    Date of Patent: July 10, 1990
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Koji Kobashi, Kozo Nishimura, Koichi Miyata, Yoshio Kawate, Kazuo Kumagai, Norio Suzuki, Yutaka Kawata, Kiyotaka Ishibashi