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:
Jul. 19, 1988
Filed:
Feb. 07, 1986
Applicant:
Inventor:
Yukio Kuribayashi, Soka, JP;
Assignee:
Aica Kogyo Co., Ltd., Aichi, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
3402 / ; 200 6166 ; 340568 ; 34082531 ;
Abstract
A keysensor of the present invention is provided with a magnet and a magnetic switch opposedly via a hole for inserting and removing each keyholder containing magnetic metal sheet and consisting of non-magnetic substance, a plurality of magnetic switches are placed at predetermined places, said keysensor makes it possible for said magnetic switches to operate corresponding to said places by using said keyholder containing magnetic metal sheet different in each position and size.