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:
Aug. 27, 2013
Filed:
Dec. 12, 2002
Applicants:
Koji Matsumoto, Niihama, JP;
Narutoshi Hayashi, Niihama, JP;
Nobuyuki Kurata, Habikino, JP;
Inventors:
Assignee:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D 5/06 (2006.01); C03C 17/00 (2006.01); G02B 1/10 (2006.01); C08J 7/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for producing a polarizing film comprising the step of dipping a polyvinyl alcohol film in/on which iodine is adsorbed and oriented in an aqueous solution containing boric acid wherein contact between the aqueous solution and oxygen is suppressed. The produced polarizing film has a high contrast.
Matsumoto, Koji. (2013). Method for producing iodine type polarizing film (U.S. Patent No. 8518474). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8518474
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile