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. 20, 2007
Filed:
Jun. 17, 2004
Applicants:
Daisuke Ohno, Tokyo, JP;
Kenji Ishii, Tokyo, JP;
Yasumasa Norisue, Tokyo, JP;
Masamitchi Mizukami, Tokyo, JP;
Atsushi Hirashima, Tokyo, JP;
Inventors:
Daisuke Ohno, Tokyo, JP;
Kenji Ishii, Tokyo, JP;
Yasumasa Norisue, Tokyo, JP;
Masamitchi Mizukami, Tokyo, JP;
Atsushi Hirashima, Tokyo, JP;
Assignee:
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 73/10 (2006.01); C08G 65/331 (2006.01); C08G 65/332 (2006.01);
U.S. Cl.
CPC ...
Abstract
An acid anhydride of the formula (4), and a polyimide using the acid anhydride,