Patents by Inventor Tutomu Nakanishi

Tutomu Nakanishi 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).

  • Method of producing a pyroelectric infrared radiation detector
    Patent number: 5662818
    Abstract: A pyroelectric infrared radiation detector for detecting the intensity of infrared radiation with a pyroelectric element is provided. The pyroelectric infrared radiation detector comprises a substrate made of a single crystal material such as (100) magnesium oxide and an infrared radiation detecting structure which comprises a first electrode disposed on the substrate, a pyroelectric thin film disposed on the first electrode, and a second electrode disposed on the pyroelectric thin film for absorption of infrared radiation. The substrate has a recess provided in the upper surface thereof where the infrared radiation detecting structure is seated.
    Type: Grant
    Filed: July 31, 1995
    Date of Patent: September 2, 1997
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Koji Nomura, Tutomu Nakanishi, Tokumi Kotani, Keizaburo Kuramasu
  • Pyroelectric infrared radiation detector and method of producing the same
    Patent number: 5471060
    Abstract: A pyroelectric infrared radiation detector for detecting the intensity of infrared radiation with a pyroelectric element. The pyroelectric infrared radiation detector comprises a substrate made of a single crystal material and an infrared radiation detecting structure which comprises a first electrode disposed on the substrate, a pyroelectric thin film disposed on the first electrode, and a second electrode disposed on the pyroelectric thin film for absorption of infrared radiation. The substrate has a recess provided in the upper surface thereof where the infrared radiation detecting structure is seated.
    Type: Grant
    Filed: March 30, 1994
    Date of Patent: November 28, 1995
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Koji Nomura, Tutomu Nakanishi, Tokumi Kotani, Keizaburo Kuramasu