Shigeru Matsui

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Nagano, JP

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Patents Grantslast 30 patents

Information Patent Grant
Wristwatch band with radio antenna
- Patent number 5,179,733
- Issue date Jan 12, 1993
- Seiko Epson Corporation
- Shigeru Matsui
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Clasp to join straps containing an antenna for a portable informati...
- Patent number 5,152,693
- Issue date Oct 6, 1992
- Seiko Epson Corporation
- Shigeru Matsui
- G08 - SIGNALLING
Information Patent Grant
Waterproof watch case
- Patent number 4,117,658
- Issue date Oct 3, 1978
- Kabushiki Kaisha Suwa Seikosha
- Tsutomu Miyasaka
- G04 - HOROLOGY