Juniti Koyano

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Portable gas detector and its cradle
- Patent number 6,606,897
- Issue date Aug 19, 2003
- Riken Keiki Co., Ltd.
- Juniti Koyano
- G01 - MEASURING TESTING
Information Patent Grant
Portable gas detector-alarm
- Patent number D447974
- Issue date Sep 18, 2001
- Riken Keiki Co., Ltd.
- Juniti Koyano
- D10 - Measuring, testing, or signalling instruments