Patents by Inventor Hidehiro Matsunami

Hidehiro Matsunami 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).

  • Composite organic electroluminescent material and production method thereof
    Patent number: 8425801
    Abstract: A composite organic EL material suited to flash deposition and a method for producing the same are provided. A composite organic electroluminescence material in which an organic material and an organic metal complex are combined with each other, wherein the melting point of the organic material is lower by 30° C. or more than the decomposition temperature of the organic metal complex.
    Type: Grant
    Filed: April 13, 2009
    Date of Patent: April 23, 2013
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Hidehiro Matsunami, Yasunori Kadoi, Chishio Hosokawa, Yoshikazu Tanaka, Toshihiro Iwakuma, Atau Ioku
  • COMPOSITE ORGANIC ELECTROLUMINESCENT MATERIAL
    Publication number: 20110175031
    Abstract: A composite organic electroluminescent material includes particles that include two or more materials, the two or more materials being bonded and including a first material and a second material.
    Type: Application
    Filed: September 18, 2009
    Publication date: July 21, 2011
    Inventors: Hidehiro Matsunami, Yasunori Kadoi, Chishio Hosokawa, Yoshikazu Tanaka
  • COMPOSITE ORGANIC ELECTROLUMINESCENT MATERIAL AND PRODUCTION METHOD THEREOF
    Publication number: 20100258767
    Abstract: A composite organic EL material suited to flash deposition and a method for producing the same are provided. A composite organic electroluminescence material in which an organic material and an organic metal complex are combined with each other, wherein the melting point of the organic material is lower by 30° C. or more than the decomposition temperature of the organic metal complex.
    Type: Application
    Filed: April 13, 2009
    Publication date: October 14, 2010
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Hidehiro MATSUNAMI, Yasunori Kadoi, Chishio Hosokawa, Yoshikazu Tanaka, Toshihiro Iwakuma, Atau Ioku
  • METHOD FOR PRODUCING AROMATIC COMPOUND AND AROMATIC COMPOUND
    Publication number: 20090206748
    Abstract: A process for producing an aromatic compound which can effectively decrease the contents of halogen elements in the aromatic compound and an aromatic compound which is produced in accordance with the process and useful as the material for obtaining an organic electroluminescence device having a long life are provided. The process for producing an aromatic compound comprises bringing an aromatic compound which is produced via an intermediate compound having halogen elements and has contents of halogen elements of 10 to 1,000 ppm by mass into reaction with a dehalogenating agent to decrease the contents of halogen elements to 10 ppm by mass or smaller, and an aromatic compound which is produced in accordance with the process.
    Type: Application
    Filed: April 29, 2009
    Publication date: August 20, 2009
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Fumio MORIWAKI, Hidehiro Matsunami, Tetsuya Inoue
  • Method for producing aromatic compound and aromatic compound
    Patent number: 7547809
    Abstract: A process for producing an aromatic compound which can effectively decrease the contents of halogen elements in the aromatic compound and an aromatic compound which is produced in accordance with the process and useful as the material for obtaining an organic electroluminescence device having a long life are provided. The process for producing an aromatic compound comprises bringing an aromatic compound which is produced via an intermediate compound having halogen elements and has contents of halogen elements of 10 to 1,000 ppm by mass into reaction with a dehalogenating agent to decrease the contents of halogen elements to 10 ppm by mass or smaller, and an aromatic compound which is produced in accordance with the process.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: June 16, 2009
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Fumio Moriwaki, Hidehiro Matsunami, Tetsuya Inoue
  • Method for producing aromatic compound and aromatic compound
    Publication number: 20070060777
    Abstract: A process for producing an aromatic compound which can effectively decrease the contents of halogen elements in the aromatic compound and an aromatic compound which is produced in accordance with the process and useful as the material for obtaining an organic electroluminescence device having a long life are provided. The process for producing an aromatic compound comprises bringing an aromatic compound which is produced via an intermediate compound having halogen elements and has contents of halogen elements of 10 to 1,000 ppm by mass into reaction with a dehalogenating agent to decrease the contents of halogen elements to 10 ppm by mass or smaller, and an aromatic compound which is produced in accordance with the process.
    Type: Application
    Filed: June 23, 2006
    Publication date: March 15, 2007
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Fumio Moriwaki, Hidehiro Matsunami, Tetsuya Inoue