Toshiji Kato

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Hirakata, JP

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Patents Grantslast 30 patents

Information Patent Grant
Dome speaker with a diaphragm having at least one elongated cut-out...
- Patent number 4,709,392
- Issue date Nov 24, 1987
- Onkyo Kabushiki Kaisha
- Toshiji Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Dome speaker with cut-out portions in the voice coil bobbin
- Patent number 4,591,667
- Issue date May 27, 1986
- Onkyo Kabushiki Kaisha
- Masanori Hino
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Loudspeaker system
- Patent number 4,410,063
- Issue date Oct 18, 1983
- Onkyo Kabushiki Kaisha
- Akira Yasue
- H04 - ELECTRIC COMMUNICATION TECHNIQUE