Yukio Sato

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Shizuoka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Radio selective calling receiver
- Patent number 6,032,021
- Issue date Feb 29, 2000
- NEC Corporation
- Yukio Sato
- G08 - SIGNALLING
Information Patent Grant
Radio selective calling system
- Patent number 5,784,000
- Issue date Jul 21, 1998
- NEC Corporation
- Yukio Sato
- G08 - SIGNALLING
Information Patent Grant
Hand-held electronic apparatus using two batteries sequentially sup...
- Patent number 5,359,318
- Issue date Oct 25, 1994
- NEC Corporation
- Takayuki Asai
- G08 - SIGNALLING
Information Patent Grant
Buzzer with electronic integrated oscillation circuit
- Patent number 4,163,223
- Issue date Jul 31, 1979
- Star Seimitsu Kabushiki Kaisha
- Yukio Sato
- G08 - SIGNALLING