Sunao Hamamura

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Drive circuit for piezoelectric pump and cooling system that uses t...
- Patent number 7,564,164
- Issue date Jul 21, 2009
- NEC Corporation
- Mitsuru Yamamoto
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Control of switching devices in synchronized-rectification system
- Patent number 5,519,599
- Issue date May 21, 1996
- NEC Corporation
- Yosuke Shinada
- G05 - CONTROLLING REGULATING

Patents Applicationslast 30 patents

Information Patent Application
Drive Circuit for Piezoelectric Pump and Cooling System That Uses T...
- Publication number 20070242427
- Publication date Oct 18, 2007
- Mitsuru Yamamoto
- G06 - COMPUTING CALCULATING COUNTING