Kazumi Ookawa

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Patents Grantslast 30 patents

Information Patent Grant
Biological-signal detecting device
- Patent number 6,030,347
- Issue date Feb 29, 2000
- Matsushita Electric Works, Ltd.
- Katsuji Nakamura
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Relax inducing device with heartbeat detection unit
- Patent number 5,993,401
- Issue date Nov 30, 1999
- Matsushita Electric Works, Ltd.
- Hiroyuki Inbe
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Massaging apparatus having self-adjusting constant strength and non...
- Patent number 5,792,080
- Issue date Aug 11, 1998
- Matsushita Electric Works, Ltd.
- Kazumi Ookawa
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE