Masayoshi Yamashita

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Hamamatsu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electrostatic loudspeaker
- Patent number 8,885,853
- Issue date Nov 11, 2014
- Yamaha Corporation
- Masayoshi Yamashita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Earphone device and sound generating apparatus equipped with the same
- Patent number 8,270,657
- Issue date Sep 18, 2012
- Yamaha Corporation
- Souichi Takigawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Key actuating system
- Patent number 7,667,116
- Issue date Feb 23, 2010
- Yamaha Corporation
- Masayoshi Yamashita
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Key driving apparatus and keyboard musical instrument
- Patent number 7,547,833
- Issue date Jun 16, 2009
- Yamaha Corporation
- Masayoshi Yamashita
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Thermoelectric module
- Patent number 7,081,677
- Issue date Jul 25, 2006
- Yamaha Corporation
- Masayoshi Yamashita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetic detecting apparatus with a variable voltage power supply
- Patent number 5,493,218
- Issue date Feb 20, 1996
- Yamaha Corporation
- Yoshinori Hayashi
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
ELECTROSTATIC LOUDSPEAKER AND METHOD OF PRODUCING ELECTROSTATIC LOU...
- Publication number 20130129121
- Publication date May 23, 2013
- Yamaha Corporation
- Masayoshi YAMASHITA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ELECTROSTATIC LOUDSPEAKER
- Publication number 20130108086
- Publication date May 2, 2013
- YAMAHA CORPORATION
- Masayoshi Yamashita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
EARPHONE DEVICE AND SOUND GENERATING APPARATUS EQUIPPED WITH THE SAME
- Publication number 20100166245
- Publication date Jul 1, 2010
- Yamaha Corporation
- Souichi Takigawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Thermoelectric module
- Publication number 20030183839
- Publication date Oct 2, 2003
- Masayoshi Yamashita
- H01 - BASIC ELECTRIC ELEMENTS