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. 26, 2003
Filed:
Dec. 20, 2001
Applicant:
Inventors:
Shoichi Saito, Hachioji, JP;
Hiromichi Sakano, Hachioji, JP;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 3/206 ;
U.S. Cl.
CPC ...
F16C 3/206 ;
Abstract
A hydrodynamic bearing according to the present invention comprises a rotary shaft having a convex portion provided at one end portion thereof, a sleeve which rotatably supports the rotary shaft, and having herringbone grooves formed in an inner wall thereof at positions, a thrust bearing which is provided in contact with an end portion of the rotary shaft on the convex portion side and restricts movement of the thrust bearing or the rotary shaft in an axial direction thereof, and a lubricant sealed in a space surrounded by the rotary shaft, the sleeve and the thrust bearing.