Toshikazu Iwasaki

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Loudspeaker system, method and apparatus of manufacturing the same
- Patent number 7,386,145
- Issue date Jun 10, 2008
- Mitsubishi Denki Kabushiki Kaisha
- Teruho Yamada
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Speaker device, and method and device for producing the same
- Patent number 6,899,794
- Issue date May 31, 2005
- Mitsubishi Denki Kabushiki Kaisha
- Teruho Yamada
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Speaker device
- Patent number 6,371,241
- Issue date Apr 16, 2002
- Foster Electric Co., Ltd.
- Teruho Yamada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Loudspeaker system, method and apparatus of manufacturing the same
- Publication number 20050141745
- Publication date Jun 30, 2005
- Mitsubishi Denki Kabushiki Kaisha
- Teruho Yamada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE