Patents by Inventor Tomohiro Yashiki

Tomohiro Yashiki 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).

  • Environmental condition sensor
    Patent number: 4428909
    Abstract: The present invention relates to an environmental condition sensor which is used to detect temperature etc., which sensor comprises an environmental condition sensor proper (1, 3,or 7), and a gas permeable structure (2 or 5) comprising .gamma.-MnO.sub.2, (Zn--Mn--FeO.sub.x) , and mAl.sub.2 O.sub.3.nCaO as the main composition thereof or an enamel layer (9) comprising .gamma.-MnO.sub.2, (Zn--Mn--FeOx), (.alpha.-Al.sub.2 O.sub.3.zeorite), and frit as the main composition thereof, which structure or layer surrounds the environmental condition sensor proper, so that carbon in oily smake and uncombustion gas striking the structure burns to prevent the oily smake and carbon from adhering to the environmental condition sensor proper (1, 3 or 7), whereby the degradation of the characteristics of the environmental condition sensor proper is avoided.
    Type: Grant
    Filed: August 19, 1981
    Date of Patent: January 31, 1984
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tomohiro Yashiki, Fumio Hosomi, Yasuo Wakahata, Atsushi Nishino, Kiyotaka Wasa, Masazumi Katase