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:
Mar. 17, 1998
Filed:
May. 13, 1996
Applicant:
Inventors:
Hideyuki Nakanishi, Kyoto, JP;
Akira Ueno, Katano, JP;
Hideo Nagai, Takatsuki, JP;
Akio Yoshikawa, Ibaraki, JP;
Assignee:
Matsushita Electronics Corporation, Takatsuki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; G02B / ;
U.S. Cl.
CPC ...
369109 ; 369 4432 ; 369 4437 ; 369112 ;
Abstract
An optical head for optical recording and reproducing apparatuses is disclosed, which comprises
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Nakanishi, Hideyuki. (1998). Optical head including a semiconductor laser having a non-scatter area (U.S. Patent No. 5729519). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5729519
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile