Masatoshi Okazaki

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Patents Grantslast 30 patents

Information Patent Grant
Loudspeaker damper, manufacturing method thereof, and loudspeaker a...
- Patent number 8,098,869
- Issue date Jan 17, 2012
- Panasonic Corporation
- Masatoshi Okazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of manufacturing a damper for a loudspeaker
- Patent number 5,966,797
- Issue date Oct 19, 1999
- Matsushita Electric Industrial Co., Ltd.
- Masatoshi Okazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Loudspeaker and a method for producing the same
- Patent number 5,903,658
- Issue date May 11, 1999
- Matsushita Electric Industrial Co., Ltd.
- Masatoshi Okazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Damper for a loudspeaker and a method for producing the same
- Patent number 5,878,150
- Issue date Mar 2, 1999
- Matsushita Electric Industrial Co., Ltd.
- Masatoshi Okazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Loudspeaker and a method for producing the same
- Patent number 5,875,253
- Issue date Feb 23, 1999
- Matsushita Electric Industrial Co., Ltd.
- Masatoshi Okazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Speaker damper
- Patent number 5,776,597
- Issue date Jul 7, 1998
- Teijin Limited
- Hirosuke Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Speaker and Method of Manufacturing the Same
- Publication number 20090116682
- Publication date May 7, 2009
- Panasonic Electronic Devices Co., Ltd.
- Takashi Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
LOUDSPEAKER DAMPER, MANUFACTURING METHOD THEREOF, AND LOUDSPEAKER A...
- Publication number 20090010471
- Publication date Jan 8, 2009
- Matsushita Electric Industrial Co., Ltd.
- Masatoshi Okazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Speaker, speaker-use diaphragm, dust cap, production methods and pr...
- Publication number 20070131478
- Publication date Jun 14, 2007
- Masatoshi Okazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE