Akimasa Matsushita

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Light emitting diode display device and portable terminal device
- Patent number 8,256,948
- Issue date Sep 4, 2012
- NEC Corporation
- Akimasa Matsushita
- G02 - OPTICS
Information Patent Grant
Folding electronic device
- Patent number 7,668,324
- Issue date Feb 23, 2010
- NEC Corporation
- Akimasa Matsushita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Constant voltage regulator, method of controlling the same, and ele...
- Patent number 6,509,723
- Issue date Jan 21, 2003
- NEC Corporation
- Akimasa Matsushita
- G05 - CONTROLLING REGULATING
Information Patent Grant
Power source supplying circuit and method comprising a constant-vol...
- Patent number 6,194,873
- Issue date Feb 27, 2001
- NEC Corporation
- Akimasa Matsushita
- G05 - CONTROLLING REGULATING
Information Patent Grant
Circuit for suppressing white noise in received voice
- Patent number 5,323,457
- Issue date Jun 21, 1994
- NEC Corporation
- Tatsuji Ehara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Power source control circuitry for an automotive portable telephone
- Patent number 5,212,836
- Issue date May 18, 1993
- NEC Corporation
- Akimasa Matsushita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
LIGHT EMITTING DIODE DISPLAY DEVICE AND PORTABLE TERMINAL DEVICE
- Publication number 20100141176
- Publication date Jun 10, 2010
- Akimasa Matsushita
- G02 - OPTICS
Information Patent Application
Folding electronic device
- Publication number 20050187645
- Publication date Aug 25, 2005
- NEC Corporation
- Akimasa Matsushita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Electronic mail receipt processing method and portable communicatio...
- Publication number 20030190909
- Publication date Oct 9, 2003
- Akimasa Matsushita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Constant voltage regulator, method of controlling the same, and ele...
- Publication number 20020079873
- Publication date Jun 27, 2002
- NEC Corporation
- Akimasa Matsushita
- G05 - CONTROLLING REGULATING