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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.:

US 12526906 B1

PDFFull Text
Date of Patent:
Jan. 13, 2026

Filed:

Jun. 22, 2022

Lamp

Applicant:

Koito Manufacturing Co., Ltd., Tokyo, JP;

Inventors:

Shohei Yanagizu, Shizuoka, JP;

Yu Ota, Shizuoka, JP;

Assignee:

KOITO MANUFACTURING CO., LTD., Tokyo, JP;

Attorney:

Osha Bergman Watanabe & Burton LLP

Primary Examiner:

Patrick C Chen

Int. Cl.
CPC ...
H05B 47/28 (2020.01); H05B 45/18 (2020.01); H05B 45/305 (2020.01); H05B 45/3725 (2020.01); H05B 45/46 (2020.01); H05B 47/165 (2020.01); H05B 47/18 (2020.01);
U.S. Cl.
CPC ...
H05B 47/28 (2020.01); H05B 45/18 (2020.01); H05B 45/305 (2020.01); H05B 45/3725 (2020.01); H05B 45/46 (2020.01); H05B 47/165 (2020.01); H05B 47/18 (2020.01);
Abstract

A lamp includes a power supply circuit, a light source, a control unit, a first temperature detection circuit, and a second temperature detection circuit. The power supply circuit is provided on a first substrate and configured to generate a predetermined voltage based on a power supply voltage. The light source, which is provided on a second substrate, includes a plurality of light-emitting elements and an adjustment unit configured to adjust a drive current flowing through each of the plurality of light-emitting elements, and uses the predetermined voltage as a power supply. The control unit is provided on a third substrate and configured to control the adjustment unit. The first temperature detection circuit is provided on the first substrate and configured to detect a temperature. The second temperature detection circuit is provided on the second substrate and configured to detect a temperature. The control unit is configured to control the adjustment unit based on a detection result having a higher temperature of detection results of the first and second temperature detection circuits and a signal indicating a turn-on condition of the plurality of light-emitting elements.

Find Patent Forward Citations

Yanagizu, Shohei. (2026). Lamp (U.S. Patent No. 12526906). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12526906

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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