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:
Feb. 26, 1991
Filed:
Dec. 14, 1989
Applicant:
Inventors:
Kuninori Imai, Kanagawa, JP;
Takeji Shiokawa, Fuchu, JP;
Shigeo Kato, Mitaka, JP;
Isao Ishikawa, Takasaki, JP;
Toshimichi Ikeda, Ushiku, JP;
Kan Otake, Tsuchiura, JP;
Assignees:
Hitachi, Ltd., Tokyo, JP;
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ;
U.S. Cl.
CPC ...
350529 ; 350520 ;
Abstract
A slide table includes an inner member, an outer member fitted at least partly over the inner member, air bearings provided between the inner and outer members, and a motor means having a coil connected to the outer member to drive the same.