TOSHIRO SAKAI

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Shuchi-gun, JP

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Patents Grantslast 30 patents

Information Patent Grant
Keyboard musical instrument
- Patent number 9,520,107
- Issue date Dec 13, 2016
- Yamaha Corporation
- Tadaharu Kato
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Material for keys of keyboard
- Patent number 7,759,570
- Issue date Jul 20, 2010
- Yamaha Corporation
- Toshiro Sakai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Key structure
- Patent number 7,394,004
- Issue date Jul 1, 2008
- Yamaha Corporation
- Shigeru Muramatsu
- B44 - DECORATIVE ARTS

Patents Applicationslast 30 patents

Information Patent Application
KEYBOARD MUSICAL INSTRUMENT
- Publication number 20150068382
- Publication date Mar 12, 2015
- Yamaha Corporation
- TADAHARU KATO
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
MATERIAL FOR KEYS OF KEYBOARD
- Publication number 20080229903
- Publication date Sep 25, 2008
- Yamaha Corporation
- TOSHIRO SAKAI
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Key structure
- Publication number 20060254892
- Publication date Nov 16, 2006
- Yamaha Corporation
- Shigeru Muramatsu
- B44 - DECORATIVE ARTS
Information Patent Application
Sounding body for musical instrument and method for making the soun...
- Publication number 20060162530
- Publication date Jul 27, 2006
- Yamaha Corporation
- Shigeru Muramatsu
- G10 - MUSICAL INSTRUMENTS ACOUSTICS