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. 10, 1976
Filed:
May. 30, 1973
Applicant:
Inventors:
Kiyotsugu Ishikawa, Takatsuki, JA;
Tetsuo Kobune, Uji, JA;
Hitoo Iwasa, Takatsuki, JA;
Iwao Teramoto, Ibaraki, JA;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
250199 ; 250216 ; 356221 ;
Abstract
An improvement in optical remote-control apparatus which comprises a light-beam transmitter and a light-receiver, wherein the improvement is that a light-scattering (i.e., light-diffusing) plate having a suitable area is provided in front of the light-receiver, so that the aiming tolerance of the light-beam transmitter becomes broader, enabling easy remote-control.
Ishikawa, Kiyotsugu. (1976). Optical remote control apparatus employing light scattering plate (U.S. Patent No. 3937949). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3937949
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile