Patents by Inventor Yasuhiro Shiohara

Yasuhiro Shiohara 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).

  • Infrared sensing element and temperature measuring device
    Patent number: 6565254
    Abstract: An infrared sensing element of the present invention includes a base including a thin film portion and a thick wall portion arranged around the thin film portion, and a thermopile including a plurality of thermocouples connected in series so that cold junctions are located on the thick wall portion and hot junctions are located on the thin film portion, wherein a thermosensitive portion is provided in contact with the thick wall portion so that a reference temperature with high accuracy can be used for determining temperature based on output from the thermopile. A PN junction formed on a semiconductor substrate serves as the thermosensitive portion, and it is used to provide for a compact infrared sensing element with high performance at low cost.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: May 20, 2003
    Assignee: Seiko Epson Corporation
    Inventors: Shigemi Sato, Osamu Iwamoto, Yasuhiro Shiohara, Yuji Oda
  • Infrared sensing element and temperature measuring device
    Publication number: 20020037026
    Abstract: An infrared sensing element of the present invention includes a base including a thin film portion and a thick wall portion arranged around the thin film portion, and a thermopile including a plurality of thermocouples connected in series so that cold junctions are located on the thick wall portion and hot junctions are located on the thin film portion, wherein a thermosensitive portion is provided in contact with the thick wall portion so that a reference temperature with high accuracy can be used for determining temperature based on output from the thermopile. A PN junction formed on a semiconductor substrate serves as the thermosensitive portion, and it is used to provide for a compact infrared sensing element with high performance at low cost.
    Type: Application
    Filed: June 6, 2001
    Publication date: March 28, 2002
    Inventors: Shigemi Sato, Osamu Iwamoto, Yasuhiro Shiohara, Yuji Oda