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Ikuo Kajiyama
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Continual engagement support device, portable terminal, continual e...
Patent number
11,373,507
Issue date
Jun 28, 2022
NEC SOLUTION INNOVATORS, LTD.
Ikuo Kajiyama
G08 - SIGNALLING
Information
Patent Grant
Echo canceler
Patent number
8,229,107
Issue date
Jul 24, 2012
Mitsubishi Electric Corporation
Atsuyoshi Yano
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Echo processing apparatus
Patent number
6,868,158
Issue date
Mar 15, 2005
Mitsubishi Denki Kabushiki Kaisha
Shinya Takahashi
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Echo canceling apparatus
Patent number
6,678,376
Issue date
Jan 13, 2004
Mitsubishi Denki Kabushiki Kaisha
Shinya Takahashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Double-talk detecting apparatus, echo canceller using the double-ta...
Patent number
6,516,050
Issue date
Feb 4, 2003
Mitsubishi Denki Kabushiki Kaisha
Hirohisa Tasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Echo canceller for decreasing a deterioration factor of a speech qu...
Patent number
6,445,792
Issue date
Sep 3, 2002
Mitsubishi Denki Kabushiki Kaisha
Koichi Shiraki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
CONTINUAL ENGAGEMENT SUPPORT DEVICE, PORTABLE TERMINAL, CONTINUAL E...
Publication number
20210201649
Publication date
Jul 1, 2021
NEC Solution Innovators, Ltd.
Ikuo KAJIYAMA
G08 - SIGNALLING
Information
Patent Application
Echo Canceler
Publication number
20090168993
Publication date
Jul 2, 2009
Atsuyoshi Yano
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Echo processing apparatus
Publication number
20030156711
Publication date
Aug 21, 2003
Shinya Takahashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Sound communication device and echo processor
Publication number
20020181698
Publication date
Dec 5, 2002
Shinya Takahashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE