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Kanuma, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Lighting device
Patent number
6,523,979
Issue date
Feb 25, 2003
Nakanishi, Inc.
Sosaku Kawata
F21 - LIGHTING
Information
Patent Grant
Hand scaler polishing unit and hand scaler polishing apparatus
Patent number
6,254,464
Issue date
Jul 3, 2001
Nakanishi Inc.
Sosaku Kawata
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Dental handpiece with lighting means
Patent number
5,908,295
Issue date
Jun 1, 1999
Nakanishi Inc.
Sosaku Kawata
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Dental handpiece having rotatable contact member
Patent number
5,518,398
Issue date
May 21, 1996
Nakanishi Dental Mgf. Co., Ltd.
Eiichi Nakanishi
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Transparent dental tube unit
Patent number
5,407,352
Issue date
Apr 18, 1995
Nakanishi Dental Mfg. Co., Ltd.
Sosaku Kawata
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Dental handpiece having cleaning unit
Patent number
5,380,201
Issue date
Jan 10, 1995
Nakanishi Dental Mfg. Co., Ltd.
Sosaku Kawata
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Dental handpiece having turbine rotatable in reverse direction
Patent number
5,286,194
Issue date
Feb 15, 1994
Nakanishi Dental Manufacturing Co., Ltd.
Hiroshi Horiuchi
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Dental handpiece apparatus having heating unit
Patent number
5,244,384
Issue date
Sep 14, 1993
Nakanishi Dental Mfg. Co., Ltd.
Sosaku Kawata
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE