Masaaki Hiroshima

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
He-Ne laser driving power supply with means for interrupting feedba...
- Patent number 5,428,633
- Issue date Jun 27, 1995
- NEC Corporation
- Masaaki Hiroshima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Air-cooled argon ion laser tube
- Patent number 5,251,223
- Issue date Oct 5, 1993
- NEC Corporation
- Masaaki Hiroshima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gas laser tube with mask
- Patent number 5,052,014
- Issue date Sep 24, 1991
- NEC Corporation
- Masaaki Hiroshima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Ion laser
- Patent number 4,910,747
- Issue date Mar 20, 1990
- NEC Corporation
- Masaaki Hiroshima
- H01 - BASIC ELECTRIC ELEMENTS