Takamasa Yoshikawa

Person

Saitama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Electron emitting device, display apparatus using electron emitting...
- Patent number 7,994,698
- Issue date Aug 9, 2011
- Pioneer Corporation
- Ryota Tanaka
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Electron emission device, and driving method thereof
- Patent number 7,902,760
- Issue date Mar 8, 2011
- Pioneer Corporation
- Nobuyasu Negishi
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Photoelectric conversion device and image pickup device using elect...
- Patent number 7,348,531
- Issue date Mar 25, 2008
- Pioneer Corporation
- Yoshiyuki Okuda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electron-emitting device and method of manufacturing the same and d...
- Patent number 7,095,040
- Issue date Aug 22, 2006
- Pioneer Corporation
- Shingo Iwasaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Display device of flat panel structure with emission devices of mat...
- Patent number 6,787,992
- Issue date Sep 7, 2004
- Pioneer Corporation
- Takashi Chuman
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Image pickup device including electron-emitting devices
- Patent number 6,744,063
- Issue date Jun 1, 2004
- Pioneer Corporation
- Takamasa Yoshikawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Flat panel display device utilizing electron emission devices
- Patent number 6,700,132
- Issue date Mar 2, 2004
- Pioneer Corporation
- Takashi Chuman
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical recording medium
- Patent number 6,641,887
- Issue date Nov 4, 2003
- Pioneer Corporation
- Tetsuya Iida
- G11 - INFORMATION STORAGE
Information Patent Grant
Electron emission light-emitting device and display apparatus using...
- Patent number 6,472,803
- Issue date Oct 29, 2002
- Pioneer Corporation
- Atsushi Yoshizawa
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Electron emission device and display apparatus using the same
- Patent number 6,404,124
- Issue date Jun 11, 2002
- Pioneer Electronic Corporation
- Kazuto Sakemura
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Electron emission device and display device using the same
- Patent number 6,400,070
- Issue date Jun 4, 2002
- Pioneer Electronic Corporation
- Takashi Yamada
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Electron emission device with electron supply layer having reduced...
- Patent number 6,388,376
- Issue date May 14, 2002
- Pioneer Corporation
- Nobuyasu Negishi
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Electron emission device and display device using the same
- Patent number 6,316,873
- Issue date Nov 13, 2001
- Pioneer Electronic Corporation
- Hiroshi Ito
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Electron emission device with specific island-like regions
- Patent number 6,285,123
- Issue date Sep 4, 2001
- Pioneer Corporation
- Takashi Yamada
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Electron emission device and display device using the same
- Patent number 6,278,230
- Issue date Aug 21, 2001
- Pioneer Electronic Corporation
- Atsushi Yoshizawa
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Flat panel display apparatus with an array of electron emitting dev...
- Patent number 6,259,198
- Issue date Jul 10, 2001
- Pioneer Electronic Corporation
- Shuuchi Yanagisawa
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Electron emission device with electron supply layer of hydrogenated...
- Patent number 6,184,612
- Issue date Feb 6, 2001
- Pioneer Electronic Corporation
- Nobuyasu Negishi
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Electron emission device and display device using the same
- Patent number 6,166,487
- Issue date Dec 26, 2000
- Pioneer Electronic Corporation
- Nobuyasu Negishi
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Electron emission device and display device using the same
- Patent number 6,147,443
- Issue date Nov 14, 2000
- Pioneer Electronic Corporation
- Takamasa Yoshikawa
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Electron emission device and display device using the same
- Patent number 6,144,155
- Issue date Nov 7, 2000
- Pioneer Electronic Corporation
- Takamasa Yoshikawa
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Electron emission device and display using the same
- Patent number 6,130,503
- Issue date Oct 10, 2000
- Pioneer Electronic Corporation
- Nobuyasu Negishi
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Electron emission device and display device using the same
- Patent number 6,066,922
- Issue date May 23, 2000
- Pioneer Electronic Corporation
- Shingo Iwasaki
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Electron emission device and display using the same
- Patent number 6,023,125
- Issue date Feb 8, 2000
- Pioneer Electronic Corporation
- Takamasa Yoshikawa
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Electron emission device and display device using the same
- Patent number 5,990,605
- Issue date Nov 23, 1999
- Pioneer Electronic Corporation
- Takamasa Yoshikawa
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Electron emission device having peak intensity ratio characteristic...
- Patent number 5,986,390
- Issue date Nov 16, 1999
- Pioneer Electronic Corporation
- Takashi Chuman
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Cold electron emission display device
- Patent number 5,894,189
- Issue date Apr 13, 1999
- Pioneer Electronic Corporation
- Kiyohide Ogasawara
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magneto optical disc, apparatus for reproducing the same and method...
- Patent number 5,681,633
- Issue date Oct 28, 1997
- Pioneer Electronic Corporation
- Nobuaki Onagi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording disk and production process therefor
- Patent number 5,382,460
- Issue date Jan 17, 1995
- Pioneer Electronic Corporation
- Nobuaki Onagi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording disk and manufacturing method thereof
- Patent number 5,217,850
- Issue date Jun 8, 1993
- Pioneer Electronic Corporation
- Seiro Fujii
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of making magneto-optical recording disk
- Patent number 5,087,340
- Issue date Feb 11, 1992
- Pioneer Electronic Corporation
- Nobuaki Onagi
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
TIO2 NANOPARTICLES
- Publication number 20120083409
- Publication date Apr 5, 2012
- National Institute for Materials Science
- Hideo Okuyama
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Electron Emitting Device, Display Apparatus Using Electron Emitting...
- Publication number 20090284129
- Publication date Nov 19, 2009
- Ryota Tanaka
- B82 - NANO-TECHNOLOGY
Information Patent Application
Electron Emission Device And Manufacturing Method Of The Same
- Publication number 20080211401
- Publication date Sep 4, 2008
- Tomonari Nakada
- B82 - NANO-TECHNOLOGY
Information Patent Application
Electron Emission Device, and Driving Method Thereof
- Publication number 20080203947
- Publication date Aug 28, 2008
- Nobuyasu Negishi
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
Electron Emitting Device and Manufacturing Method Thereof and Image...
- Publication number 20070241655
- Publication date Oct 18, 2007
- Kazuto Sakemura
- B82 - NANO-TECHNOLOGY
Information Patent Application
Photoelectric conversion device and image pickup device using elect...
- Publication number 20050184220
- Publication date Aug 25, 2005
- Pioneer Corporation
- Yoshiyuki Okuda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Electron emitting device and method of manufacturing the same and d...
- Publication number 20040251841
- Publication date Dec 16, 2004
- Nobuyasu Negishi
- B82 - NANO-TECHNOLOGY
Information Patent Application
Image pickup device including electron-emitting devices
- Publication number 20030048745
- Publication date Mar 13, 2003
- PIONEER CORPORATION
- Takamasa Yoshikawa
- B82 - NANO-TECHNOLOGY
Information Patent Application
Flat panel display device utilizing electron emission devices
- Publication number 20020125490
- Publication date Sep 12, 2002
- PIONEER CORPORATION
- Takashi Chuman
- B82 - NANO-TECHNOLOGY
Information Patent Application
Flat panel display device
- Publication number 20020117963
- Publication date Aug 29, 2002
- PIONEER CORPORATION
- Takashi Chuman
- B82 - NANO-TECHNOLOGY
Information Patent Application
Speaker
- Publication number 20020076070
- Publication date Jun 20, 2002
- PIONEER CORPORATION
- Takamasa Yoshikawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical recording medium
- Publication number 20020051859
- Publication date May 2, 2002
- PIONEER CORPORATION
- Tetsuya Iida
- G11 - INFORMATION STORAGE
Information Patent Application
ELECTRON EMISSION DEVICE AND DISPLAY DEVICE USING THE SAME
- Publication number 20010040430
- Publication date Nov 15, 2001
- HIROSHI ITO
- B82 - NANO-TECHNOLOGY
Information Patent Application
Electron-emitting device and method of manufacturing the same and d...
- Publication number 20010017369
- Publication date Aug 30, 2001
- Shingo Iwasaki
- B82 - NANO-TECHNOLOGY

Takamasa Yoshikawa

Person

Patents Grantslast 30 patents

Electron emitting device, display apparatus using electron emitting...

Electron emission device, and driving method thereof

Photoelectric conversion device and image pickup device using elect...

Electron-emitting device and method of manufacturing the same and d...

Display device of flat panel structure with emission devices of mat...

Image pickup device including electron-emitting devices

Flat panel display device utilizing electron emission devices

Optical recording medium

Electron emission light-emitting device and display apparatus using...

Electron emission device and display apparatus using the same

Electron emission device and display device using the same

Electron emission device with electron supply layer having reduced...

Electron emission device and display device using the same

Electron emission device with specific island-like regions

Electron emission device and display device using the same

Flat panel display apparatus with an array of electron emitting dev...

Electron emission device with electron supply layer of hydrogenated...

Electron emission device and display device using the same

Electron emission device and display device using the same

Electron emission device and display device using the same

Electron emission device and display using the same

Electron emission device and display device using the same

Electron emission device and display using the same

Electron emission device and display device using the same

Electron emission device having peak intensity ratio characteristic...

Cold electron emission display device

Magneto optical disc, apparatus for reproducing the same and method...

Optical recording disk and production process therefor

Optical recording disk and manufacturing method thereof

Method of making magneto-optical recording disk

Patents Applicationslast 30 patents

TIO2 NANOPARTICLES

Electron Emitting Device, Display Apparatus Using Electron Emitting...

Electron Emission Device And Manufacturing Method Of The Same

Electron Emission Device, and Driving Method Thereof

Electron Emitting Device and Manufacturing Method Thereof and Image...

Photoelectric conversion device and image pickup device using elect...

Electron emitting device and method of manufacturing the same and d...

Image pickup device including electron-emitting devices

Flat panel display device utilizing electron emission devices

Flat panel display device

Speaker

Optical recording medium

ELECTRON EMISSION DEVICE AND DISPLAY DEVICE USING THE SAME

Electron-emitting device and method of manufacturing the same and d...