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:
Apr. 30, 1985
Filed:
Jun. 09, 1983
Applicant:
Inventors:
Akihiko Takenaka, Kariya, JP;
Miyao Arakawa, Nagoya, JP;
Masahiro Sato, Toyoake, JP;
Toshiyuki Yamaguchi, Nishio, JP;
Assignee:
Nippondenso Co., Ltd., Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M / ;
U.S. Cl.
CPC ...
73116 ;
Abstract
A rotation detecting apparatus includes a first electromagnetic pickup of the electromagnetic coil type positioned to face a single signal rotor in the diametrical direction thereof and generate a first rotation signal, a permanent magnet received in a recess formed in the principal plane surface of the signal rotor, and a second electromagnetic pickup including a magnetoresistance effect element positined separately above the upper surface of the permanent magnet and operatively associated with the magnet to generate a second rotation signal.