Itsuki Kawabata

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Tokorozawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Speaker component, speaker, and its manufacturing method
- Patent number 5,850,462
- Issue date Dec 15, 1998
- Kabushiki Kaisha Kenwood
- Yoshio Sakamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Voice coil and loudspeaker structure
- Patent number 5,717,775
- Issue date Feb 10, 1998
- Kabushiki Kaisha Kenwood
- Yoshio Sakamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE