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:
Jul. 17, 2012
Filed:
May. 19, 2009
Applicants:
Tohru Hotta, Okaya, JP;
Ryoichi Kawasaki, Isesaki, JP;
Hiroyuki Ichikawa, Hanno, JP;
Inventors:
Assignees:
Sanyo Electric Co., Ltd., Osaka, JP;
Sanyo Optec Design Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of manufacturing a synthetic resin lens, comprising: adjusting a degree of change in transmittance of a lens member made of synthetic resin for a blue violet laser beam with accumulated application of the blue violet laser beam, by applying to the lens member an electromagnetic wave shorter in wavelength than the blue violet laser beam.
Hotta, Tohru. (2012). Method of manufacturing synthetic resin lens, method of manufacturing reformed synthetic resin material and optical pickup apparatus (U.S. Patent No. 8223614). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8223614
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile