Masaichi Akiho

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Iwaki-City, JP

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Patents Grantslast 30 patents

Information Patent Grant
Audio device and method for generating surround sound having first...
- Patent number 7,920,711
- Issue date Apr 5, 2011
- Alpine Electronics, Inc.
- Noriyuki Takashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Noise cancellation device, engine-noise cancellation device, and no...
- Patent number 6,944,303
- Issue date Sep 13, 2005
- Alpine Electronics, Inc.
- Masaichi Akiho
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Noise-canceling apparatus
- Patent number 5,524,057
- Issue date Jun 4, 1996
- Alpine Electronics Inc.
- Masaichi Akiho
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Noise canceling method
- Patent number 5,410,606
- Issue date Apr 25, 1995
- Honda Giken Kogyo Kabushiki Kaisha
- Kenji Imai
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

Information Patent Application
AUDIO DEVICE AND METHOD FOR GENERATING SURROUND SOUND
- Publication number 20060256969
- Publication date Nov 16, 2006
- ALPINE ELECTRONICS, INC.
- Noriyuki Takashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Digital amplifier and method for adjusting gain of same
- Publication number 20040138769
- Publication date Jul 15, 2004
- Masaichi Akiho
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Noise cancellation device, engine-noise cancellation device, and no...
- Publication number 20030219131
- Publication date Nov 27, 2003
- Masaichi Akiho
- H03 - BASIC ELECTRONIC CIRCUITRY