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. 01, 1999
Filed:
Nov. 20, 1996
Applicant:
Inventor:
Jun Yamamoto, Hamamatsu, JP;
Assignee:
Yamaha Corporation, Shizuoka-Ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ; G10F / ;
U.S. Cl.
CPC ...
250221 ; 25022722 ; 250229 ; 84724 ;
Abstract
A non-contact type position transducer has a light emitting block for splitting a light beam into two light sub-beams and a light detecting block for receiving one of the light sub-beams and another light sub-beam radiated from another light emitting block, and the light emitting blocks and the light detecting blocks shared between a plurality of non-contact type position transducers make the arrangement of non-contact type position transducers simple.