Tohoku Pioneer Corp.

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Yamagata, JP

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Patents Grantslast 30 patents

Information Patent Grant
Diaphragm for electroacoustic transducer and method of making the same
- Patent number 7,092,544
- Issue date Aug 15, 2006
- Pioneer Corporation
- Satoshi Hachiya
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Ceramic insulation coated electric wire self-fusing ceramic insulat...
- Patent number 6,867,374
- Issue date Mar 15, 2005
- Totoku Electric Co., Ltd.
- Toshihiro Ishigaki
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

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Patents Applicationslast 30 patents

Information Patent Application
SPEAKER DEVICE AND SPEAKER UNIT
- Publication number 20090180648
- Publication date Jul 16, 2009
- Pioneer Corporation
- Nobuhiro Endo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE