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.

Date of Patent:
Dec. 25, 1990

Filed:

Dec. 02, 1988
Applicant:
Inventors:

Eiichi Akutsu, Kanagawa, JP;

Hiroshi Fujimagari, Kanagawa, JP;

Koichi Haga, Kanagawa, JP;

Hiroo Soga, Kanagawa, JP;

Koichi Saito, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
346155 ; 3461 / ;
Abstract

A plurality of recording electrodes are disposed in parallel form on an elastic metallic thin plate through an insulating layer, a protrusion made of a conductive material is formed in the proximity of the tip of each of recording electrodes, and notched grooves are formed between the recording electrodes to partition the recording electrodes.


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