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:
Oct. 18, 2022
Filed:
Mar. 30, 2020
Tianma Japan, Ltd., Kanagawa, JP;
Nobuya Seko, Kanagawa, JP;
Haruki Yamane, Akita, JP;
TIANMA JAPAN, LTD., Kanagawa, JP;
Abstract
A gas sensing element reflects light incoming along an optical path on a sensing face. The light reflected by the gas sensing element changes in a characteristic depending on quantity of a specific gas that is in contact with the gas sensing element. Each of a first optical element and a second optical element bends the optical path. The gas sensing element, a light source, a photodetector, and a magnetic field applicator are disposed on the same side with respect to a virtual plane that is perpendicular to an incident plane of the incoming light to the sensing face of the gas sensing element and includes a point on the optical path where light goes out from the first optical element and a point on the optical path where light enters the second optical element.