Tsunehiko Araki

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Kadoma, JP

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Patents Grantslast 30 patents

Information Patent Grant
Infrared intrusion detector with a plurality of infrared ray detect...
- Patent number 4,912,748
- Issue date Mar 27, 1990
- Matsushita Electric Works, Ltd.
- Takashi Horii
- G07 - CHECKING-DEVICES
Information Patent Grant
Person-number detecting system
- Patent number 4,849,737
- Issue date Jul 18, 1989
- Matsushita Electric Works, Ltd.
- Shinji Kirihata
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Abnormality supervising system
- Patent number 4,737,847
- Issue date Apr 12, 1988
- Matsushita Electric Works, Ltd.
- Tsunehiko Araki
- G08 - SIGNALLING
Information Patent Grant
Object detecting apparatus including photosensors for restricted de...
- Patent number 4,656,462
- Issue date Apr 7, 1987
- Matsushita Electric Works, Ltd.
- Tsunehiko Araki
- G08 - SIGNALLING
Information Patent Grant
Ionization type smoke sensing device
- Patent number 4,396,840
- Issue date Aug 2, 1983
- Matsushita Electric Works, Ltd.
- Tsunehiko Araki
- G08 - SIGNALLING
Information Patent Grant
Light scattering type smoke detector
- Patent number 4,103,997
- Issue date Aug 1, 1978
- Matsushita Electric Works, Ltd.
- Tsunehiko Araki
- G08 - SIGNALLING