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:
Oct. 01, 2002
Filed:
Mar. 29, 2001
Masashi Sano, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
A case ( ) of a photointerrupter (A) includes a pair of projections ( ) for preventing a light source ( ) and a photodetector ( ) from coming out of a respective one of paired receiving portions ( ). Each of the projections ( ) is connected to a respective first wall ( A) defining the respective receiving portion ( ) of the case on an extension line of a respective slit ( ) for light transmission. Therefore, the case ( ) need not be formed with a large slit other than the slit ( ), so that disturbing external light is less likely to enter the receiving portions ( ).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile