Keishi Matsumoto

Person

Hamamatsu, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Loudspeaker apparatus and speaker system
- Patent number 8,411,883
- Issue date Apr 2, 2013
- Yamaha Corporation
- Keishi Matsumoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical disc recording under adjustable conditions
- Patent number 7,272,089
- Issue date Sep 18, 2007
- Yamaha Corporation
- Keishi Matsumoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk recorder with reproduction quality control
- Patent number 7,200,080
- Issue date Apr 3, 2007
- Yamaha Corporation
- Keishi Matsumoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc apparatus with laser power control matching linear rec...
- Patent number 7,046,600
- Issue date May 16, 2006
- Yamaha Corporation
- Keishi Matsumoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc apparatus with regulation of recording velocity and la...
- Patent number 6,975,572
- Issue date Dec 13, 2005
- Yamaha Corporation
- Keishi Matsumoto
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Acoustic Device and Acoustic Processing Method
- Publication number 20150271615
- Publication date Sep 24, 2015
- Yamaha Corporation
- Masaya Kano
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
LOUDSPEAKER APPARATUS AND SPEAKER SYSTEM
- Publication number 20090316938
- Publication date Dec 24, 2009
- Yamaha Corporation
- Keishi MATSUMOTO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
AV System
- Publication number 20090290064
- Publication date Nov 26, 2009
- Yamaha Corporation
- Keishi MATSUMOTO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical disk recorder with reproduction quality control
- Publication number 20060171278
- Publication date Aug 3, 2006
- Yamaha Corporation
- Keishi Matsumoto
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disk recorder with reproduction quality control
- Publication number 20060153028
- Publication date Jul 13, 2006
- Yamaha Corporation
- Keishi Matsumoto
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disk recorder with reproduction quality control
- Publication number 20060153029
- Publication date Jul 13, 2006
- Yamaha Corporation
- Keishi Matsumoto
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disk recorder with reproduction quality control
- Publication number 20060153030
- Publication date Jul 13, 2006
- Yamaha Corporation
- Keishi Matsumoto
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disk recorder with reproduction quality control
- Publication number 20030133376
- Publication date Jul 17, 2003
- Yamaha Corporation
- Keishi Matsumoto
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disk recording apparatus with adaptive power control of las...
- Publication number 20030063544
- Publication date Apr 3, 2003
- Yamaha Corporation
- Keishi Matsumoto
- G11 - INFORMATION STORAGE

Keishi Matsumoto

Person

Patents Grantslast 30 patents

Loudspeaker apparatus and speaker system

Optical disc recording under adjustable conditions

Optical disk recorder with reproduction quality control

Optical disc apparatus with laser power control matching linear rec...

Optical disc apparatus with regulation of recording velocity and la...

Patents Applicationslast 30 patents

Acoustic Device and Acoustic Processing Method

LOUDSPEAKER APPARATUS AND SPEAKER SYSTEM

AV System

Optical disk recorder with reproduction quality control

Optical disk recorder with reproduction quality control

Optical disk recorder with reproduction quality control

Optical disk recorder with reproduction quality control

Optical disk recorder with reproduction quality control

Optical disk recording apparatus with adaptive power control of las...