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:
May. 27, 2025
Filed:
Feb. 05, 2021
Applicant:
Sumco Corporation, Tokyo, JP;
Inventors:
Kazushige Takaishi, Saga, JP;
Chin Fu Tsai, Yunlin Hsien, TW;
Assignee:
SUMCO CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24B 37/08 (2012.01); B24B 37/005 (2012.01); B24B 37/04 (2012.01);
U.S. Cl.
CPC ...
B24B 37/08 (2013.01); B24B 37/005 (2013.01); B24B 37/042 (2013.01);
Abstract
The sum of torques: the torque of the sun gear and the torque of the internal gear, and the ratio of the torques are controlled within predetermined ranges.