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:
Oct. 23, 2012

Filed:

Sep. 12, 2008
Applicants:

Takahiro Fujiyama, Sodegaura, JP;

Yoshiyuki Totani, Sodegaura, JP;

Masakatsu Nakatsuka, Sodegaura, JP;

Inventors:

Takahiro Fujiyama, Sodegaura, JP;

Yoshiyuki Totani, Sodegaura, JP;

Masakatsu Nakatsuka, Sodegaura, JP;

Assignee:

Yamamoto Chemicals, Inc., Yao-shi, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 35/24 (2006.01);
U.S. Cl.
CPC ...
Abstract

In order to attain high mobility, large on/off current ratio and excellent storage stability to organic transistor comprising an organic semiconductor layer, the organic semiconductor layer comprises at least one compound represented by the general formula (1): (wherein each of Xto Xrepresents independently a hydrogen atom, a halogen atom, a straight, branched or cyclic alkyl group, a straight, branched or cyclic alkoxy group, a straight, branched or cyclic alkoxyalkyl group, or an unsubstituted or substituted aryl group, A represents an unsubstituted or substituted thiophene ring, B represents an unsubstituted or substituted benzene ring, or an unsubstituted or substituted thiophene ring).


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