Masao Obara

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Deflection yoke, cathode-ray tube device using the same and display...
- Patent number 6,166,484
- Issue date Dec 26, 2000
- Hitachi, Ltd.
- Nobutaka Okuyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Deflection yoke with coils for reducing unwanted magnetic field rad...
- Patent number 5,907,214
- Issue date May 25, 1999
- Hitachi, Ltd.
- Takanori Yukimatsu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode-ray tube apparatus and yoke
- Patent number 5,701,061
- Issue date Dec 23, 1997
- Hitachi, Ltd.
- Nobutaka Okuyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Deflection yoke and cathode-ray tube apparatus comprising the same
- Patent number 5,668,447
- Issue date Sep 16, 1997
- Hitachi, Ltd.
- Nobutaka Okuyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Deflection yoke and cathode-ray tube apparatus comprising the same
- Patent number 5,548,190
- Issue date Aug 20, 1996
- Hitachi, Ltd.
- Nobutaka Okuyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode-ray tube apparatus and yoke
- Patent number 5,475,287
- Issue date Dec 12, 1995
- Hitachi, Ltd.
- Nobutaka Okuyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Deflection yoke
- Patent number 5,070,280
- Issue date Dec 3, 1991
- Hitachi, Ltd.
- Nobutaka Okuyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Deflection yoke with auxiliary coils for stray line radiation suppr...
- Patent number 5,049,847
- Issue date Sep 17, 1991
- Hitachi, Ltd.
- Nobutaka Okuyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Pincushion distortion correction device
- Patent number 4,737,692
- Issue date Apr 12, 1988
- Hitachi, Ltd.
- Nobutaka Okuyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Masao Obara

Person

Patents Grantslast 30 patents

Deflection yoke, cathode-ray tube device using the same and display...

Deflection yoke with coils for reducing unwanted magnetic field rad...

Cathode-ray tube apparatus and yoke

Deflection yoke and cathode-ray tube apparatus comprising the same

Deflection yoke and cathode-ray tube apparatus comprising the same

Cathode-ray tube apparatus and yoke

Deflection yoke

Deflection yoke with auxiliary coils for stray line radiation suppr...

Pincushion distortion correction device