Masafumi Nakamura

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Patents Grantslast 30 patents

Information Patent Grant
Backup power source device and automobile equipped with same
- Patent number 9,013,056
- Issue date Apr 21, 2015
- PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Youichi Kageyama
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Power supply unit
- Patent number 7,830,035
- Issue date Nov 9, 2010
- Panasonic Corporation
- Koji Yoshida
- G11 - INFORMATION STORAGE
Information Patent Grant
Variable gain amplifier and AC power supply device using the same
- Patent number 7,602,247
- Issue date Oct 13, 2009
- Panasonic Corporation
- Masafumi Nakamura
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Amplitude-controlled trapezoidal wave generating circuit
- Patent number 4,988,958
- Issue date Jan 29, 1991
- Matsushita Electric Industrial Co., Ltd.
- Tosiaki Tsuruoka
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching output circuit with high speed operation and low power co...
- Patent number 4,985,648
- Issue date Jan 15, 1991
- Matsushita Electric Industrial Co. Ltd.
- Toshiaki Tsuruoka
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Non-resonance type AC power source apparatus
- Patent number 4,947,312
- Issue date Aug 7, 1990
- Matsushita Electric Industrial Co., Ltd.
- Tosiaki Tsuruoka
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
BACKUP POWER SOURCE DEVICE AND AUTOMOBILE EQUIPPED WITH SAME
- Publication number 20150001926
- Publication date Jan 1, 2015
- PANASONIC CORPORATION
- Youichi Kageyama
- B60 - VEHICLES IN GENERAL
Information Patent Application
POWER SUPPLY UNIT
- Publication number 20090315401
- Publication date Dec 24, 2009
- PANASONIC CORPORATION
- Koji Yoshida
- G11 - INFORMATION STORAGE
Information Patent Application
Variable Gain Amplifier and Ac Power Supply Device Using the Same
- Publication number 20080197822
- Publication date Aug 21, 2008
- Matsushita Electric Industrial Co., Ltd.
- Masafumi Nakamura
- H03 - BASIC ELECTRONIC CIRCUITRY