Patents by Inventor Muneyoshi Hama

Muneyoshi Hama 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).

  • Electronic device, method for producing electronic device, electronic apparatus, and moving object
    Patent number: 10340440
    Abstract: An electronic device includes a base material, a first metal film disposed on the base material and containing nitrogen and chromium, and a second metal film disposed on the first metal film and containing gold. In the first metal film, the number of nitrogen atoms may be between 20% to 100% of the number of chromium atoms. Further, the distribution of nitrogen atoms in the first metal film is larger in a third region sandwiched between a first region on the base material side of the first metal film and a second region on the second metal film side than in the first region and in the second region.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: July 2, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Tetsuya Otsuki, Shiro Murakami, Tomohiro Arai, Mitsuhiro Wada, Hiroshi Ito, Manabu Shiraki, Manabu Kondo, Muneyoshi Hama
  • ELECTRONIC DEVICE, METHOD FOR PRODUCING ELECTRONIC DEVICE, ELECTRONIC APPARATUS, AND MOVING OBJECT
    Publication number: 20160293827
    Abstract: An electronic device includes a base material, a first metal film disposed on the base material and containing nitrogen and chromium, and a second metal film disposed on the first metal film and containing gold. In the first metal film, the number of nitrogen atoms may be between 20% to 100% of the number of chromium atoms. Further, the distribution of nitrogen atoms in the first metal film is larger in a third region sandwiched between a first region on the base material side of the first metal film and a second region on the second metal film side than in the first region and in the second region.
    Type: Application
    Filed: March 31, 2016
    Publication date: October 6, 2016
    Inventors: Tetsuya OTSUKI, Shiro MURAKAMI, Tomohiro ARAI, Mitsuhiro WADA, Hiroshi ITO, Manabu SHIRAKI, Manabu KONDO, Muneyoshi HAMA
  • Semiconductor device and a method of manufacturing the same
    Publication number: 20040238858
    Abstract: [Problem]To reduce a leakage current by suppressing the generation of a junction leakage.
    Type: Application
    Filed: March 11, 2004
    Publication date: December 2, 2004
    Inventors: Yasushi Haga, Muneyoshi Hama