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:
Aug. 05, 2025
Filed:
Aug. 07, 2023
Hochiki Corporation, Tokyo, JP;
Tomohiko Shimadzu, Tokyo, JP;
Keisuke Washizu, Tokyo, JP;
Manabu Dohi, Tokyo, JP;
Yasuharu Fujiwara, Tokyo, JP;
Hideki Takano, Tokyo, JP;
HOCHIKI CORPORATION, Tokyo, JP;
Abstract
An occurrence spaceA which is provided in a light shielding spaceA shielded from light from an outside and into which a detection target flows, a first light emitting unitA and a second light emitting unit that emit detection light along a first light emitting-side optical axisA and a second light emitting-side optical axis toward an occurrence spaceA, a light receiving unit that receives scattered light generated when detection light emitted from the first light emitting unitA and the second light emitting unit is scattered by a detection target flowing into the occurrence spaceA along a light receiving-side optical axis intersecting the first light emitting-side optical axisA and the second light emitting-side optical axis, and a smoke detection unit cover-side inclined portionA that primarily reflects the detection light emitted from the first light emitting unitA and the second light emitting unit in a direction intersecting a plane defined by the first light emitting-side optical axisA, the second light emitting-side optical axis, and the light receiving-side optical axis are included.