Kiyokazu Hagiwara

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Nabari-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Television receiver and additional information transmitting method
- Patent number 6,577,347
- Issue date Jun 10, 2003
- Matsushita Electric Industrial Co., Ltd.
- Toshiro Nishio
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Television receiver and additional information transmitting method
- Patent number 6,335,763
- Issue date Jan 1, 2002
- Matsushita Electric Industrial Co., Ltd.
- Toshiro Nishio
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Diffraction grating and manufacturing method thereof
- Patent number 5,007,709
- Issue date Apr 16, 1991
- Matsushita Electric Industrial Co., Ltd.
- Masanori Iida
- G02 - OPTICS
Information Patent Grant
Frequency stabilized light source
- Patent number 4,913,525
- Issue date Apr 3, 1990
- Matsushita Electric Industrial Co., Ltd.
- Hiroshi Asakura
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Television receiver and additional information transmitting method
- Publication number 20020030760
- Publication date Mar 14, 2002
- MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- Toshiro Nishio
- H04 - ELECTRIC COMMUNICATION TECHNIQUE