Patents by Inventor Motoharu Miyakoshi

Motoharu Miyakoshi 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).

  • Exothermic instrument for firing explosive
    Patent number: 6129976
    Abstract: The exothermic instrument for firing an explosive comprises a circuit board 1 having a heat resist layer 6 on a substrate 11 and an exothermic resistance 4, which connects to a pair of through hole conductive electrodes 13 passing through the substrate 11, contacting with the explosive 19 on the heat resist layer 6, a pair of electrode pins 8, each one thereof is inserted into each one of the through hole conductive electrodes, and an insulator for holding the circuit board 1 through which the electrode pins 8 pass.
    Type: Grant
    Filed: March 10, 1998
    Date of Patent: October 10, 2000
    Assignees: Nikko Company, Nichiyu Giken Kogyo Co., Ltd.
    Inventors: Kiyoshi Mizushima, Mamoru Mouri, Motoharu Miyakoshi, Satoshi Nakamura, Hiroshi Sato, Shinzo Tsuji, Masashi Watanabe, Eiji Arai
  • Conductor paste for plugging through-holes in ceramic circuit boards and a ceramic circuit board having this conductor paste
    Patent number: 5922245
    Abstract: A conductor paste for plugging a through-hole in a ceramic substrate which includes an electrically conductive powder having a metal powder as its main component, a swelling agent and a vehicle, and may also include adhesion improvers. After sintering the conductor paste, a conductor plug is created which will not fall out of the through-hole, is resistant to chipping during the leveling process and may be gas impermeable.
    Type: Grant
    Filed: September 3, 1997
    Date of Patent: July 13, 1999
    Assignee: Nikko Company
    Inventors: Mamoru Mohri, Motoharu Miyakoshi, Kiyoshi Mizushima
  • Conductor paste for plugging through-holes in ceramic circuit boards and a ceramic circuit board having this conductor paste
    Patent number: 5698015
    Abstract: A conductor paste for plugging a through-hole in a ceramic substrate which includes an electrically conductive powder having a metal powder as its main component, a swelling agent and a vehicle, and may also include adhesion improvers. After sintering the conductor paste, a conductor plug is created which will not fall out of the through-hole, is resistant to chipping during the leveling process and may be gas impermeable.
    Type: Grant
    Filed: March 26, 1996
    Date of Patent: December 16, 1997
    Assignee: Nikko Company
    Inventors: Mamoru Mohri, Motoharu Miyakoshi, Kiyoshi Mizushima