Takeshi Sakai

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Hamamatsu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Information providing system, identification information resolution...
- Patent number 9,858,339
- Issue date Jan 2, 2018
- Yamaha Corporation
- Hitoshi Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Musical performance processing apparatus and storage medium therefor
- Patent number 7,795,524
- Issue date Sep 14, 2010
- Yamaha Corporation
- Miki Arai
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Method for measuring sound absorption power of a theater chair with...
- Patent number 6,526,840
- Issue date Mar 4, 2003
- Yamaha Corporation
- Takeshi Sakai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Dummy sound absorber representing a seated human for measuring soun...
- Patent number 6,463,817
- Issue date Oct 15, 2002
- Yamaha Corporation
- Takeshi Sakai
- G01 - MEASURING TESTING
Information Patent Grant
Dummy sound absorber representing a seated human for measuring soun...
- Patent number 6,105,443
- Issue date Aug 22, 2000
- Yamaha Corporation
- Takeshi Sakai
- G01 - MEASURING TESTING
Information Patent Grant
Method for measuring sound absorption power of a theater chair with...
- Patent number 5,465,469
- Issue date Nov 14, 1995
- Yamaha Corporation
- Takeshi Sakai
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
INFORMATION PROVIDING SYSTEM, IDENTIFICATION INFORMATION RESOLUTION...
- Publication number 20140039654
- Publication date Feb 6, 2014
- YAMAHA CORPORATION
- Hitoshi Akiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
MUSICAL PERFORMANCE PROCESSING APPARATUS AND STORAGE MEDIUM THEREFOR
- Publication number 20090031884
- Publication date Feb 5, 2009
- Yamaha Corporation
- Miki Arai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
Audio device maintenance support apparatus
- Publication number 20070025558
- Publication date Feb 1, 2007
- Yamaha Corporation
- Takeshi Sakai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE