Keiichi Harashima

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for treatment of freon gas
- Patent number 6,174,499
- Issue date Jan 16, 2001
- NEC Corporation
- Keiichi Harashima
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method and apparatus for treatment of freon gas
- Patent number 5,907,077
- Issue date May 25, 1999
- NEC Corporation
- Keiichi Harashima
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Electrostatic chuck with mechanism for lifting up the peripheral of...
- Patent number 5,677,824
- Issue date Oct 14, 1997
- NEC Corporation
- Keiichi Harashima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER