Tomoyuki Shimada

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Kanagawa-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Speaker voice coil bobbin and method of manufacturing same
- Patent number 6,909,788
- Issue date Jun 21, 2005
- Pioneer Corporation
- Toshihiro Ishigaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
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...
Information Patent Grant
Speaker diaphragm and method of manufacturing same
- Patent number 6,740,202
- Issue date May 25, 2004
- Pioneer Corporation
- Toshihiro Ishigaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Ceramic isulation coated electric wire self-fusing ceramic insulati...
- Publication number 20040076842
- Publication date Apr 22, 2004
- Toshihiro Ishigaki
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Speaker diaphragm and method of manufacturing same
- Publication number 20020140136
- Publication date Oct 3, 2002
- PIONEER CORPORATION
- Toshihiro Ishigaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Speaker voice coil bobbin and method of manufacturing same
- Publication number 20020141609
- Publication date Oct 3, 2002
- PIONEER CORPORATION
- Toshihiro Ishigaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE