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. 29, 2008
Filed:
Mar. 29, 2005
Hiroki Maeda, Tokyo, JP;
Ken Tomino, Tokyo, JP;
Shigeru Sugawara, Tokyo, JP;
Masahiro Funahashi, Sagamihara, JP;
Junichi Hanna, Yokohama, JP;
Hiroki Maeda, Tokyo, JP;
Ken Tomino, Tokyo, JP;
Shigeru Sugawara, Tokyo, JP;
Masahiro Funahashi, Sagamihara, JP;
Junichi Hanna, Yokohama, JP;
Dai Nippon Printing Co., Ltd., Tokyo-to, JP;
Abstract
An organic semiconductor material, enabling to exhibit liquid crystal phase at wide temperature range including at least ordinary temperature and to exhibit high charge carrier mobility, and an organic semiconductor structure and organic semiconductor device formed from the organic semiconductor material. The organic semiconductor material has a quaterthiophene skeleton as shown in a following chemical formula 1, wherein R1 in the chemical formula 1 is an alkyl group of C1 to C20 or a hydrogen, and R2 is an alkyl group of C1 to C20 or a hydrogen.