Hiroshi Soma

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Car speaker system
- Patent number 4,597,470
- Issue date Jul 1, 1986
- Pioneer Electronic Corporation
- Kazunori Takagi
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Speaker unit for automotive vehicles
- Patent number 4,365,113
- Issue date Dec 21, 1982
- Pioneer Electronic Corporation
- Hiroshi Soma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Automotive loudspeaker having variable speaker orientation and part...
- Patent number 4,365,114
- Issue date Dec 21, 1982
- Pioneer Electronic Corporation
- Hiroshi Soma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE