Patents by Inventor Nobuharu Katsuki

Nobuharu Katsuki 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: 6164819
    Abstract: In order to present a temperature sensor which works stable also in a high temperature condition showing only a small deviation in the resistance value of thermistor, the invented temperature sensor comprises a heat resisting cap (5) made of a metal, a thermistor (1) housed inside the heat resisting cap (5) and at least more than one lead wire (4) which is electrically connected with the thermistor (1) and is pulled out of said heat resisting cap (5), said heat resisting cap (5) being formed with an alloy containing Ni--Cr as the main ingredient.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: December 26, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroki Moriwake, Nobuharu Katsuki, Tsuyoshi Tanaka, Katsunori Matsubara, Takashi Tamai
  • Patent number: 6130598
    Abstract: The invention relates to a temperature detecting apparatus and an automobile using the same, and is intended to improve the heat response characteristic.
    Type: Grant
    Filed: January 8, 1997
    Date of Patent: October 10, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Nobuharu Katsuki, Tsuyoshi Tanaka, Katsunori Matsubara, Takashi Tamai, Hiroki Moriwake
  • Patent number: 5547907
    Abstract: The present invention relates to a zinc oxide varistor as a characteristic element of an arrestor for protecting a transmission and distribution line and peripheral devices thereof from surge voltage created by lightning, and more particularly a highly reliable zinc oxide varistor excellent in the non-linearity with respect to voltage, the discharge withstand current rating properties, and the life characteristics under voltage, a method of preparing the same, and PbO type crystallized glass for coating oxide ceramics employed for a zinc oxide varistor, etc. A zinc oxide varistor of the present invention comprises a sintered body (1) and a high resistive side layer (3) consisting of crystallized glass with high crystallinity containing the prescribed amount of SiO.sub.2, MoO.sub.3, WO.sub.3, TiO.sub.2, NiO, etc.
    Type: Grant
    Filed: February 14, 1995
    Date of Patent: August 20, 1996
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masaaki Katsumata, Osamu Kanaya, Nobuharu Katsuki, Akihiro Takami
  • Patent number: 5447892
    Abstract: The present invention relates to a zinc oxide varistor as a characteristic element of an arrestor for protecting a transmission and distribution line and peripheral devices thereof from surge voltage created by lightning, and more particularly a highly reliable zinc oxide varistor excellent in the non-linearity with respect to voltage, the discharge withstand current rating properties, and the life characteristics under voltage, a method of preparing the same, and PbO type crystallized glass for coating oxide ceramics employed for a zinc oxide varistor, etc. A zinc oxide varistor of the present invention comprises a sintered body (1) and a high resistive side layer (3) consisting of crystallized glass with high crystallinity containing the prescribed amount of SiO.sub.2, MoO.sub.3, WO.sub.3, TiO.sub.2, NiO, etc.
    Type: Grant
    Filed: November 1, 1993
    Date of Patent: September 5, 1995
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masaaki Katsumata, Osamu Kanaya, Nobuharu Katsuki, Akihiro Takami
  • Patent number: 5294908
    Abstract: The present invention relates to a zinc oxide varistor as a characteristic element of an arrestor for protecting a transmission and distribution line and peripheral devices thereof from surge voltage created by lightning, and more particularly a highly reliable zinc oxide varistor excellent in the non-linearity with respect to voltage, the discharge withstand current rating properties, and the life characteristics under voltage, a method of preparing the same, and PbO type crystallized glass for coating oxide ceramics employed for a zinc oxide varistor, etc. A zinc oxide varistor of the present invention includes a sintered body (1) and a high resistive side layer (3) consisting of crystallized glass with high crystallinity containing the prescribed amount of SiO.sub.2, MoO.sub.3, WO.sub.3, TiO.sub.2, NiO, etc.
    Type: Grant
    Filed: June 26, 1991
    Date of Patent: March 15, 1994
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masaaki Katsumata, Osamu Kanaya, Nobuharu Katsuki, Akihiro Takami