Junichi Narumiya

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Fujisawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Projected beam-type smoke detector and receiving unit
- Patent number 5,751,216
- Issue date May 12, 1998
- Hochiki Kabushiki Kaisha
- Junichi Narumiya
- G08 - SIGNALLING
Information Patent Grant
Projected beam-type smoke detector
- Patent number 5,623,253
- Issue date Apr 22, 1997
- Hockiki Kabushiki Kaisha
- Junichi Narumiya
- G08 - SIGNALLING
Information Patent Grant
Smoke sensor
- Patent number 5,502,434
- Issue date Mar 26, 1996
- Hockiki Kabushiki Kaisha
- Osami Minowa
- G08 - SIGNALLING
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Photoelectric smoke sensor including a photosensing data correction...
- Patent number 4,695,734
- Issue date Sep 22, 1987
- Hochiki Corporation
- Hiroshi Honma
- G08 - SIGNALLING
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Smoke detector with changeable pulse light emitting interval for mo...
- Patent number 4,651,013
- Issue date Mar 17, 1987
- Hochiki Corporation
- Shigeru Kajii
- G08 - SIGNALLING