Akira Kohama

Person

Shiga, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Luminescent element material and luminescent element comprising the...
- Patent number 7,318,966
- Issue date Jan 15, 2008
- Toray Industries, Inc.
- Tsuyoshi Tominaga
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Electroluminescent elements
- Patent number 6,921,589
- Issue date Jul 26, 2005
- Toray Industries, Inc.
- Akira Kohama
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Organic electroluminescent device
- Patent number 6,878,209
- Issue date Apr 12, 2005
- Toray Industries, Inc.
- Yoshio Himeshima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Pyrromethene metal complex and light emitting device composition an...
- Patent number 6,805,978
- Issue date Oct 19, 2004
- Toray Industries, Inc.
- Seiichiro Murase
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing an organic electroluminescent device
- Patent number 6,633,124
- Issue date Oct 14, 2003
- Toray Industries, Inc.
- Yoshio Himeshima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Process for manufacturing organic electroluminescent device
- Patent number 6,592,933
- Issue date Jul 15, 2003
- Toray Industries, Inc.
- Yoshio Himeshima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Process for producing an organic electroluminescent device
- Patent number 6,469,439
- Issue date Oct 22, 2002
- Toray Industries, Inc.
- Yoshio Himeshima
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Organic electroluminescent device
- Publication number 20030203100
- Publication date Oct 30, 2003
- YOSHIO HIMESHIMA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Luminescent element material and luminescent element comprising the...
- Publication number 20030168970
- Publication date Sep 11, 2003
- Tsuyoshi Tominaga
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Pyrromethene metal complex and light emitting device composition an...
- Publication number 20030082406
- Publication date May 1, 2003
- Seiichiro Murase
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for producing an organic electroluminescent device
- Publication number 20030011305
- Publication date Jan 16, 2003
- YOSHIO HIMESHIMA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Electroluminescent elements
- Publication number 20020160227
- Publication date Oct 31, 2002
- Akira Kohama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Process for producing an organic electroluminescent device
- Publication number 20010009689
- Publication date Jul 26, 2001
- YOSHIO HIMESHIMA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PROCESS FOR MANUFACTURING ORGANIC ELECTROLUMINESCENT DEVICE
- Publication number 20010004469
- Publication date Jun 21, 2001
- YOSHIO HIMESHIMA
- H01 - BASIC ELECTRIC ELEMENTS

Akira Kohama

Person

Patents Grantslast 30 patents

Luminescent element material and luminescent element comprising the...

Electroluminescent elements

Organic electroluminescent device

Pyrromethene metal complex and light emitting device composition an...

Process for producing an organic electroluminescent device

Process for manufacturing organic electroluminescent device

Process for producing an organic electroluminescent device

Patents Applicationslast 30 patents

Organic electroluminescent device

Luminescent element material and luminescent element comprising the...

Pyrromethene metal complex and light emitting device composition an...

Process for producing an organic electroluminescent device

Electroluminescent elements

Process for producing an organic electroluminescent device

PROCESS FOR MANUFACTURING ORGANIC ELECTROLUMINESCENT DEVICE