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:
Jun. 21, 1994
Filed:
Nov. 10, 1992
Applicant:
Inventors:
Yoshihide Tonogai, Tokyo, JP;
Masaaki Takagi, Tokyo, JP;
Assignee:
Copal Company, Limited, Tokyo, US;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
324661 ; 324660 ; 361280 ; 3612832 ;
Abstract
This invention comprises two electrode plates 1a and 1c which are arranged in parallel to each other, and a middle electrode plate 1b. One end of an electrostatic capacity member 2 serves as a fixed portion 3 while the other end thereof serves as a movable portion 4, and both end portions of each of these electrode plates 1,1 are provided with hinges so that the movable portion 4 is movable in parallel relative to the fixed portion 3. Additive capacity is further provided by the insulating plate 6 to improve the linearity of the detection output.