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. 07, 1997
Filed:
Jun. 05, 1995
Applicant:
Inventor:
Seiji Takei, Kanagawa, JP;
Assignee:
Nippon Thompson Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K / ; H05K / ;
U.S. Cl.
CPC ...
310 12 ; 310 71 ; 174254 ;
Abstract
A linear electromagnetic actuator and drive unit are described that ensure high durability for the wiring used for signal transmission, minimize the effect of the friction of said wiring on the operation of the moving portion to enable the obtaining of a highly precise operating state, achieve both reduced costs and compact size, and are able to maintain the function of the wiring itself for a long time. The above effects are obtained by using a printed wiring substrate for the wiring, and providing a sliding member that guides the printed wiring substrate by sliding on it.