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.

Date of Patent:
Sep. 27, 2016

Filed:

Jun. 12, 2014
Applicants:

Toshihiko Matsumoto, Atsugi, JP;

Shinichi Komatsu, Tokyo, JP;

Inventors:

Toshihiko Matsumoto, Atsugi, JP;

Shinichi Komatsu, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 73/10 (2006.01); C07D 493/10 (2006.01); C07C 69/757 (2006.01); H05K 1/03 (2006.01); C07C 67/38 (2006.01); C09D 179/08 (2006.01); C07C 235/82 (2006.01);
U.S. Cl.
CPC ...
H05K 1/0346 (2013.01); C07C 67/38 (2013.01); C07C 69/757 (2013.01); C07D 493/10 (2013.01); C08G 73/105 (2013.01); C08G 73/1078 (2013.01); C09D 179/08 (2013.01); C07C 2103/94 (2013.01); H05K 1/0393 (2013.01); H05K 2201/0154 (2013.01); Y10T 428/24802 (2015.01);
Abstract

A norbornane-2-spiro-α-cycloalkanone-α'-spiro-2″-norbornane-5,5″,6,6″-tetracarboxylic dianhydride represented by the following general formula (1): wherein the formula (1), n represents an integer of 0 to 12, and Rs, R, Reach independently represents a hydrogen atom or the like.


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