Keiichi Fukatsu

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Hamamatsu-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Upright piano
- Patent number 10,424,275
- Issue date Sep 24, 2019
- Yamaha Corporation
- Keiichi Fukatsu
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Standing wave attenuation device
- Patent number 9,099,075
- Issue date Aug 4, 2015
- Yamaha Corporation
- Satoshi Sekine
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Sound adjusting system and electronic musical instrument
- Patent number 8,901,404
- Issue date Dec 2, 2014
- Yamaha Corporation
- Fusako Ishimura
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Acoustic resonator and sound chamber
- Patent number 8,439,158
- Issue date May 14, 2013
- Yamaha Corporation
- Rento Tanase
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

Information Patent Application
UPRIGHT PIANO
- Publication number 20190147835
- Publication date May 16, 2019
- Yamaha Corporation
- Keiichi FUKATSU
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
SOUND ADJUSTING SYSTEM AND ELECTRONIC MUSICAL INSTRUMENT
- Publication number 20120222541
- Publication date Sep 6, 2012
- Yamaha Corporation
- Fusako ISHIMURA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
STANDING WAVE ATTENUATION DEVICE
- Publication number 20120097477
- Publication date Apr 26, 2012
- Yamaha Corporation
- Satoshi Sekine
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ACOUSTIC RESONATOR AND SOUND CHAMBER
- Publication number 20110127107
- Publication date Jun 2, 2011
- Yamaha Corporation
- RENTO TANASE
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
ACOUSTIC RESONANCE DEVICE
- Publication number 20110056763
- Publication date Mar 10, 2011
- Yamaha Corporation
- Rento Tanase
- B60 - VEHICLES IN GENERAL