Fumio Matsushita

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Saitama-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Audio system
- Patent number 6,477,255
- Issue date Nov 5, 2002
- Pioneer Electronic Corporation
- Minoru Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Speaker system for use in an automobile vehicle
- Patent number 6,038,325
- Issue date Mar 14, 2000
- Pioneer Electronic Corporation
- Minoru Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Speaker system for use in an automobile vehicle
- Patent number 5,854,847
- Issue date Dec 29, 1998
- Pioneer Electronic Corp.
- Minoru Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Sound system with howling-prevention function
- Patent number 5,307,417
- Issue date Apr 26, 1994
- Pioneer Electronic Corporation
- Yoshinobu Takamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Sound field compensating apparatus
- Patent number 5,201,005
- Issue date Apr 6, 1993
- Pioneer Electronic Corporation
- Fumio Matsushita
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
PLL modulation circuit
- Patent number 4,609,886
- Issue date Sep 2, 1986
- Pioneer Electronic Corporation
- Hisashi Takaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE