Yoshio Yoshiwara

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for evaluating color picture tubes and device for the same a...
- Patent number 7,639,277
- Issue date Dec 29, 2009
- Hitachi, Ltd.
- Hisae Shibuya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
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
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 for cathode ray tube
- Patent number 5,317,239
- Issue date May 31, 1994
- Hitachi, Ltd.
- Hiroki Ohguro
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Color cathode ray tube
- Publication number 20030071557
- Publication date Apr 17, 2003
- Yoshiyuki Odaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Method for evaluating color picture tubes and device for the same a...
- Publication number 20020047903
- Publication date Apr 25, 2002
- Hisae Shibuya
- H01 - BASIC ELECTRIC ELEMENTS