Masaaki Yokoyama

Person

Osaka-Fu, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Organic semiconductor material with neutral radical compound of a t...
- Patent number 8,933,437
- Issue date Jan 13, 2015
- Kaneka Corporation
- Yasushi Morita
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Transistor and process of producing the same, light-emitting device...
- Patent number 8,120,242
- Issue date Feb 21, 2012
- Osaka University
- Masaaki Yokoyama
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Organic light-light conversion device
- Patent number 8,003,976
- Issue date Aug 23, 2011
- Sumitomo Chemical Company, Limited
- Kenichi Nakayama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photoelectric current multiplier using molecular crystal and produc...
- Patent number 7,294,780
- Issue date Nov 13, 2007
- Japan Science and Technology Agency
- Masahiro Hiramoto
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Organic photocurrent multiplication device
- Patent number 7,262,430
- Issue date Aug 28, 2007
- Japan Science and Technology Corporation
- Masahiro Hiramoto
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Photoelectric current multiplier using molecular crystal and produc...
- Patent number 7,220,986
- Issue date May 22, 2007
- Japan Science and Technology Agency
- Masahiro Hiramoto
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Method for detecting gas with the use of photocurrent amplification...
- Patent number 7,081,368
- Issue date Jul 25, 2006
- Japan Science and Technology Corporation
- Masahiro Hiramoto
- G01 - MEASURING TESTING
Information Patent Grant
Multiplication device comprising resin-dispersed organic semiconduc...
- Patent number 6,878,960
- Issue date Apr 12, 2005
- Japan Science and Technology Corporation
- Masaaki Yokoyama
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Electrophotosensitive material using quinone derivative
- Patent number 6,383,698
- Issue date May 7, 2002
- Kyocera Mita Corporation
- Hideki Okada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method for forming thin film pattern
- Patent number 5,863,679
- Issue date Jan 26, 1999
- Nippon Paint Co., Ltd.
- Hiroshi Tsushima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of forming color pattern on a polysilane layer
- Patent number 5,391,442
- Issue date Feb 21, 1995
- Nippon Paint Co., Ltd.
- Hiroshi Tsushima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Information recording medium and information recording method
- Patent number 5,312,713
- Issue date May 17, 1994
- Mita Industrial Co., Ltd.
- Masaaki Yokoyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Information recording medium including an organic polysilane and an...
- Patent number 5,264,266
- Issue date Nov 23, 1993
- Mita Industrial Co., Ltd.
- Masaaki Yokoyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Photoreceptor containing carrier transport with polysilane and phen...
- Patent number 5,262,260
- Issue date Nov 16, 1993
- Toagosei Chemical Industry Co., Ltd.
- Masaaki Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photosensitive material for electrophotography comprising a charge...
- Patent number 5,213,923
- Issue date May 25, 1993
- Mita Industrial Co., Ltd.
- Masaaki Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Optical sensor and thermal sensor
- Patent number 5,184,895
- Issue date Feb 9, 1993
- Mita Industrial Co., Ltd.
- Masaaki Yokoyama
- G01 - MEASURING TESTING
Information Patent Grant
Method for producing electrophotographic photoreceptor and apparatu...
- Patent number 5,130,214
- Issue date Jul 14, 1992
- Toagosei Chemical Industry Co., Ltd.
- Masaaki Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
PATTERNED SUBSTRATE AND METHOD FOR PRODUCING SAME
- Publication number 20120315582
- Publication date Dec 13, 2012
- Sumitomo Chemical Company, Limited
- Masaaki YOKOYAMA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ORGANIC SEMICONDUCTOR DEVICE
- Publication number 20120126206
- Publication date May 24, 2012
- OSAKA UNIVERSITY
- Yasushi Morita
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
TRANSISTOR AND PROCESS OF PRODUCING THE SAME, LIGHT-EMITTING DEVICE...
- Publication number 20120112318
- Publication date May 10, 2012
- Osaka University
- Masaaki YOKOYAMA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
TRANSISTOR AND PROCESS OF PRODUCING THE SAME, LIGHT-EMITTING DEVICE...
- Publication number 20090108749
- Publication date Apr 30, 2009
- Osaka University
- Masaaki Yokoyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Organic Electroluminescence Device
- Publication number 20080260970
- Publication date Oct 23, 2008
- Kenichi Nakayama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Patterned Substrate and Method for Producing Same
- Publication number 20080241484
- Publication date Oct 2, 2008
- Masaaki Yokoyama
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Organic Semiconductor Film, Electron Device Using the Same and Manu...
- Publication number 20080217604
- Publication date Sep 11, 2008
- Matsushita Electric Industrial Co., Ltd.
- Masaaki Yokoyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Complex Composition, Polymer Complex Compound And Polymer Light-Emi...
- Publication number 20080118773
- Publication date May 22, 2008
- Satoshi Mikami
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Organic light-light conversion device
- Publication number 20070051945
- Publication date Mar 8, 2007
- Kenichi Nakayama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Photoelectric current multiplier using molecular crystal and produc...
- Publication number 20070042523
- Publication date Feb 22, 2007
- JAPAN SCIENCE AND TECHNOLOGY AGENCY
- Masahiro Hiramoto
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Photoelectric current multiplier using molecular crystal and produc...
- Publication number 20040256554
- Publication date Dec 23, 2004
- Masahiro Hiramoto
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Organic photocurrent multiplier
- Publication number 20040026691
- Publication date Feb 12, 2004
- Masahiro Hiramoto
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Method for detecting gas with the use of photocurrent amplification...
- Publication number 20030182986
- Publication date Oct 2, 2003
- Masahiro Hiramoto
- G01 - MEASURING TESTING

Masaaki Yokoyama

Person

Patents Grantslast 30 patents

Organic semiconductor material with neutral radical compound of a t...

Transistor and process of producing the same, light-emitting device...

Organic light-light conversion device

Photoelectric current multiplier using molecular crystal and produc...

Organic photocurrent multiplication device

Photoelectric current multiplier using molecular crystal and produc...

Method for detecting gas with the use of photocurrent amplification...

Multiplication device comprising resin-dispersed organic semiconduc...

Electrophotosensitive material using quinone derivative

Method for forming thin film pattern

Method of forming color pattern on a polysilane layer

Information recording medium and information recording method

Information recording medium including an organic polysilane and an...

Photoreceptor containing carrier transport with polysilane and phen...

Photosensitive material for electrophotography comprising a charge...

Optical sensor and thermal sensor

Method for producing electrophotographic photoreceptor and apparatu...

Patents Applicationslast 30 patents

PATTERNED SUBSTRATE AND METHOD FOR PRODUCING SAME

ORGANIC SEMICONDUCTOR DEVICE

TRANSISTOR AND PROCESS OF PRODUCING THE SAME, LIGHT-EMITTING DEVICE...

TRANSISTOR AND PROCESS OF PRODUCING THE SAME, LIGHT-EMITTING DEVICE...

Organic Electroluminescence Device

Patterned Substrate and Method for Producing Same

Organic Semiconductor Film, Electron Device Using the Same and Manu...

Complex Composition, Polymer Complex Compound And Polymer Light-Emi...

Organic light-light conversion device

Photoelectric current multiplier using molecular crystal and produc...

Photoelectric current multiplier using molecular crystal and produc...

Organic photocurrent multiplier

Method for detecting gas with the use of photocurrent amplification...