Shigeo Matsui

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Air cleaning system having forced negative pressure generating func...
- Patent number 5,865,880
- Issue date Feb 2, 1999
- Tornex, Inc.
- Shigeo Matsui
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Screen having an air cleaning function
- Patent number 5,264,015
- Issue date Nov 23, 1993
- Japan Air Curtain Company, Ltd.
- Shigeo Matsui
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Artificial tornado generating mechanism and method of utilizing gen...
- Patent number 5,096,467
- Issue date Mar 17, 1992
- Japan Air Curtain Company, Ltd.
- Shigeo Matsui
- F24 - HEATING RANGES VENTILATING