Patents by Inventor Eisei Kanoh

Eisei Kanoh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Heterocyclic dinaphtho thieno thiophene (DNTT) compounds for use as organic semiconductor thin films in field effect transistors and related methods
    Patent number: 9018630
    Abstract: Provided are a novel heterocyclic compound represented by formula (1), and a field-effect transistor having a semiconductor layer comprising the aforementioned compound. Also provided is a method for producing an intermediate enabling the production of the aforementioned novel heterocyclic compound. (In the formula, R1 and R2 represent a hydrogen atom, a C2-16 alkyl group or an aryl group. However, when R1 each independently represents a C2-16 alkyl group or an aryl group, R2 represents a hydrogen atom or each independently represents an aryl group; and when R1 represents a hydrogen atom, R2 each independently represents an aryl group.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: April 28, 2015
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Kazuo Takimiya, Kazuki Niimi, Hirokazu Kuwabara, Yuichi Sadamitsu, Eisei Kanoh
  • Novel Heterocyclic Compound, Method For Producing Intermediate Therefor, And Use Thereof
    Publication number: 20130330876
    Abstract: Provided are a novel heterocyclic compound represented by formula (1), and a field-effect transistor having a semiconductor layer comprising the aforementioned compound. Also provided is a method for producing an intermediate enabling the production of the aforementioned novel heterocyclic compound. (In the formula, R1 and R2 represent a hydrogen atom, a C2-16 alkyl group or an aryl group. However, when R1 each independently represents a C2-16 alkyl group or an aryl group, R2 represents a hydrogen atom or each independently represents an aryl group; and when R1 represents a hydrogen atom, R2 each independently represents an aryl group.
    Type: Application
    Filed: February 24, 2012
    Publication date: December 12, 2013
    Applicants: NIPPON KAYAKU KABUSHIKI KAISHA, HIROSHIMA UNIVERSITY
    Inventors: Kazuo Takimiya, Kazuki Niimi, Hirokazu Kuwabara, Yuichi Sadamitsu, Eisei Kanoh