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. 27, 2026
Filed:
Jan. 11, 2024
Applicant:
Rohm Co., Ltd., Kyoto, JP;
Inventor:
Hisashi Sugie, Kyoto, JP;
Assignee:
ROHM CO., LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 25/06 (2016.01); H03F 3/45 (2006.01); G11B 5/55 (2006.01);
U.S. Cl.
CPC ...
H02P 25/06 (2013.01); H03F 3/45479 (2013.01); G11B 5/5521 (2013.01);
Abstract
Provided is an amplifier circuit including an inverting input terminal configured to receive a first voltage, an output terminal, and a class A amplifier circuit configured to generate, at the output terminal, an output voltage that changes in reverse polarity with respect to the first voltage, in which a bias current of an output stage of the class A amplifier circuit changes according to the first voltage.
Sugie, Hisashi. (2026). Amplifier circuit, motor driver circuit, positioning device, and hard disk device (U.S. Patent No. 12776737). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12776737
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile