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Koji Tsutsumi
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Kobe, JP
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last 30 patents
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Patent Grant
Object sensor system for automatic swing door
Patent number
5,963,000
Issue date
Oct 5, 1999
Nabco Limited
Koji Tsutsumi
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Grant
Door sensor with self-diagnosing function
Patent number
5,828,302
Issue date
Oct 27, 1998
Koji Tsutsumi
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Grant
Object sensor system for doors
Patent number
5,739,523
Issue date
Apr 14, 1998
Nabco Limited
Koji Tsutsumi
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Grant
Automatic door opening and closing system
Patent number
5,583,405
Issue date
Dec 10, 1996
Nabco Limited
Masahiro Sai
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES