Masuo Hanawaka

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
DC/DC converter having a control circuit to reduce losses at light...
- Patent number 6,466,462
- Issue date Oct 15, 2002
- Yokogawa Electric Corporation
- Tomohiro Nishiyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Pulse width control IC circuit and switching power supply unit
- Patent number 6,023,178
- Issue date Feb 8, 2000
- Yokogawa Electric Corporation
- Masaki Shioya
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching power source of the voltage resonance type
- Patent number 5,497,311
- Issue date Mar 5, 1996
- Yokogawa Electric Corporation
- Masuo Hanawaka
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching power supply
- Patent number 5,065,301
- Issue date Nov 12, 1991
- Yokogawa Electric Corporation
- Masaki Shioya
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
DC/DC converter and method for controlling same
- Publication number 20030179592
- Publication date Sep 25, 2003
- YOKOGAWA ELECTRIC CORPORATION
- Tomohiro Nishiyama
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
DC/DC converter and control method thereof
- Publication number 20020067624
- Publication date Jun 6, 2002
- Tomohiro Nishiyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER