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Patents Grantslast 30 patents

Information Patent Grant
Loud speaker, diaphragm and process for making the diaphragm
- Patent number 6,757,404
- Issue date Jun 29, 2004
- Matsushita Electric Industrial Co., Ltd.
- Hiroyuki Takewa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Speaker system
- Patent number 5,932,850
- Issue date Aug 3, 1999
- Matsushita Electric Industrial Co., Ltd.
- Takashi Sabato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Speaker system
- Patent number 5,929,392
- Issue date Jul 27, 1999
- Matsushita Electric Industrial Co., Ltd.
- Takashi Sabato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Speaker system
- Patent number 5,793,000
- Issue date Aug 11, 1998
- Matsushita Electric Industrial Co., Ltd.
- Takashi Sabato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
DISPLAY DEVICE, DISPLAY UNIT, AND CONFERENCE SYSTEM
- Publication number 20160124460
- Publication date May 5, 2016
- Panasonic Intellectual Property Management Co., Ltd.
- KEISHIRO MURATA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
MAGNETOSTRICTIVE ACTUATOR AND SPEAKER AND DEVICE USING SAID MAGNETO...
- Publication number 20110116664
- Publication date May 19, 2011
- PANASONIC CORPORATION
- Kazuma Fujioka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Loud speaker, diaphragm and process for making the diaphragm
- Publication number 20020061117
- Publication date May 23, 2002
- Hiroyuki Takewa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE