Masaru Chijiiwa

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Tokorozawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
MFB Loudspeaker
- Patent number 4,488,012
- Issue date Dec 11, 1984
- Pioneer Electronic Corporation
- Norio Matsuda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Moving coil pick-up with coils printed on opposite sides of waver
- Patent number 4,246,446
- Issue date Jan 20, 1981
- Pioneer Electronic Corporation
- Satoshi Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE