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:
Feb. 12, 1991
Filed:
Feb. 01, 1989
Applicant:
Inventor:
Masahiro Muramatsu, Shizuoka, JP;
Assignee:
Yazaki Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
116286 ; 362 23 ; 362 84 ;
Abstract
Disclosed herein is an improvement of an indicator such as a speed meter, a tachometer, or the like for use in a motor vehicle. The indicator comprises a scale plate having a pointer rotatably mounted thereon, indicia provided on the scale plate and containing fluroescent brigthener, the indicia indicating a specific value in cooperation with the pointer, a single ultraviolet light source for illuminating the indicia, and technique for equalizing the brightness of the indicia.
Muramatsu, Masahiro. (1991). Indicator (U.S. Patent No. 4991537). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4991537
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