Patents by Inventor Sadayuki Sumi

Sadayuki Sumi 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).

  • Acceleration sensor device
    Patent number: 5866818
    Abstract: An acceleration sensor element constitutes a piezoresistance type acceleration sensor in which an acceleration sensor chip including a cantilever structure of mass and beam parts and a piezoresistor formed on the beam part is mounted on a main lead which is slanted for positioning the piezoresistor and the center of gravity of the mass part substantially on the same horizontal plane in a mounted state of the sensor. The element thereby improves the reliability and assures such property as other-axis sensitivity of the sensor at the time of shipment.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: February 2, 1999
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Sadayuki Sumi, Shigenari Takami, Fumihiro Kasano, Naohiro Taniguchi, Kazuya Nohara
  • Infrared detecting device and infrared detecting element for use in the device
    Patent number: 5426412
    Abstract: An infrared detecting arrangement includes an infrared detecting element having a heat insulating film and an infrared detector which are disposed between an interior space of a hermetically sealed casing for the element and a cavity formed within a substrate of the element and communicating through a ventilator with the interior space.
    Type: Grant
    Filed: October 26, 1993
    Date of Patent: June 20, 1995
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Shigeaki Tomonari, Jun Sakai, Kouichi Aizawa, Keizi Kakite, Takayoshi Awai, Takuro Nakamura, Takuro Ishida, Tsutomu Ichihara, Hitoshi Yoshida, Shigenari Takami, Sadayuki Sumi