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. 25, 2008
Filed:
Sep. 10, 2004
Masayuki Shoshi, Kanagawa, JP;
Yuko Komai, Shizuoka, JP;
Hiroshi Tamura, Shizuoka, JP;
Masaomi Sasaki, Shizuoka, JP;
Masayuki Shoshi, Kanagawa, JP;
Yuko Komai, Shizuoka, JP;
Hiroshi Tamura, Shizuoka, JP;
Masaomi Sasaki, Shizuoka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A polycarbonate resin has a constitutional unit expressed by the following general formula (I): Arepresents an alkyl group which is substitutional or nonsubstitutional, and an aryl group which is substitutional or nonsubstitutional. A, A, A, A, Aand Aeach represent one of a hydrogen atom, a halogen atom, an alkyl group which has 1 to 6 carbon atoms and is substitutional or nonsubstitutional.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile