The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 22, 1991
Filed:
Nov. 17, 1989
Futoshi Uchiyama, Tsukuba, JP;
Ko Agatsuma, Tsukuba, JP;
Takeshi Ohara, Tsukuba, JP;
Koichi Tsukamoto, Tsukuba, JP;
Sumiyuki Ishigami, Tokyo, JP;
Mitsuru Sato, Tokyo, JP;
Hisashi Sugimoto, Tokyo, JP;
Agency of Industrial Science & Technology, Tokyo, JP;
Ministry of International Trade, Tokyo, JP;
Tokyo Denpa Co., Ltd., all of, JP;
Abstract
A temperature measurement device is provided with a temperature sensing element which contains a quartz resonator having a quartz oscillating crystal whose ratio of width to thickness is in the range of 9.48 to 9.69, and an antenna which receives stimulus for the quartz oscillating crystal and transmits waves of reverberatory oscillation. The temperature measurement device is capable of measuring temperatures in the range of normal room temperature to extremely low temperatures (4.degree. K.).