Akira Nagaoka

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Hirakata, JP

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Patents Grantslast 30 patents

Information Patent Grant
Photoelectric, scattered light smoke detector
- Patent number 5,138,302
- Issue date Aug 11, 1992
- Matsushita Electric Works, Ltd.
- Akira Nagaoka
- G08 - SIGNALLING
Information Patent Grant
Optical sensor for detecting distance to an object including anamor...
- Patent number 4,970,384
- Issue date Nov 13, 1990
- Matsushita Electric Works, Ltd.
- Yoshiaki Kambe
- G01 - MEASURING TESTING
Information Patent Grant
Optical sensor with optical interconnection board
- Patent number 4,876,446
- Issue date Oct 24, 1989
- Matsushita Electric Works, Ltd.
- Yoshiaki Kambe
- G01 - MEASURING TESTING
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