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. 13, 2026
Filed:
Mar. 13, 2024
Asahi Kasei Microdevices Corporation, Tokyo, JP;
Kengo Sasayama, Tokyo, JP;
Kenta Furuta, Tokyo, JP;
Asahi Kasei Microdevices Corporation, Tokyo, JP;
Abstract
Provided are a miniaturized gas sensor and optical device enabling accurate measurement. A gas sensor () includes a light emitter () emitting light as infrared light, a detector () detecting a signal based on light from the light emitter, a light guide () at least including a mirror and reflects the light to form an optical path in which the light from the light emitter passes through an introduced gas and an optical filter () disposed in an optical path to limit a transmission wavelength band of the light, in which a base material of the optical filter has a refractive index of 1.5 or more in the transmission wavelength band and the optical filter satisfies 0.3<(T/Lf)<1.3 where T [mm] is a thickness of the optical filter and Lf [mm] is a maximum length of the optical filter in a longitudinal direction in a planar view.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile