Hiroshi Nakagawa

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Yamato, JP

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Patents Grantslast 30 patents

Information Patent Grant
Power supply unit, battery electrical apparatus, and memory effect...
- Patent number 6,518,730
- Issue date Feb 11, 2003
- International Business Machines Corporation
- Hiroshi Nakagawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Charge control method and computer
- Patent number 6,459,235
- Issue date Oct 1, 2002
- International Business Machines Corporation
- Shigefumi Odeohhara
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Protective circuit against overheating of a semiconductor switching...
- Publication number 20020021539
- Publication date Feb 21, 2002
- International Business Machines Corporation
- Shigefumi Odaohhara
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Power supply unit, battery, electrical apparatus, and memory effect...
- Publication number 20020021110
- Publication date Feb 21, 2002
- International Business Machines Corporation
- Hiroshi Nakagawa
- G01 - MEASURING TESTING
Information Patent Application
Charge control method and computer
- Publication number 20010005124
- Publication date Jun 28, 2001
- Shigefumi Odeohhara
- G06 - COMPUTING CALCULATING COUNTING