Shigeji Ikeda

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Battery pack
- Patent number 12,142,741
- Issue date Nov 12, 2024
- Sony Corporation
- Atsuhiro Kumagai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Battery pack
- Patent number 11,777,155
- Issue date Oct 3, 2023
- Sony Corporation
- Atsuhiro Kumagai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Battery pack
- Patent number 11,462,776
- Issue date Oct 4, 2022
- Sony Corporation
- Atsuhiro Kumagai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Battery pack
- Patent number 10,797,362
- Issue date Oct 6, 2020
- Sony Corporation
- Atsuhiro Kumagai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Battery pack
- Patent number 9,799,930
- Issue date Oct 24, 2017
- Sony Corporation
- Atsuhiro Kumagai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Memory device, refresh control circuit to be used for the memory de...
- Patent number 7,180,806
- Issue date Feb 20, 2007
- Sony Corporation
- Shigeji Ikeda
- G11 - INFORMATION STORAGE
Information Patent Grant
Noise cancelling method and noise cancelling unit
- Patent number 6,285,768
- Issue date Sep 4, 2001
- NEC Corporation
- Shigeji Ikeda
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Noise canceling method and apparatus for the same
- Patent number 6,266,422
- Issue date Jul 24, 2001
- NEC Corporation
- Shigeji Ikeda
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Adaptive filter and adapting method thereof
- Patent number 6,151,614
- Issue date Nov 21, 2000
- NEC Corporation
- Shigeji Ikeda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Noise canceler
- Patent number 5,978,824
- Issue date Nov 2, 1999
- NEC Corporation
- Shigeji Ikeda
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Noise canceling method and apparatus therefor
- Patent number 5,953,380
- Issue date Sep 14, 1999
- NEC Corporation
- Shigeji Ikeda
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Adaptive filter with disabling circuit for fast tap weight convergence
- Patent number 5,940,455
- Issue date Aug 17, 1999
- NEC Corporation
- Shigeji Ikeda
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Noise cancelling method and noise canceller with variable step size...
- Patent number 5,727,073
- Issue date Mar 10, 1998
- NEC Corporation
- Shigeji Ikeda
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Noise cancelling device capable of achieving a reduced convergence...
- Patent number 5,644,641
- Issue date Jul 1, 1997
- NEC Corporation
- Shigeji Ikeda
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Adaptive filter capable of removing a residual echo at a rapid speed
- Patent number 5,636,151
- Issue date Jun 3, 1997
- NEC Corporation
- Shigeji Ikeda
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Circuit for controlling tap gains at rapid speed in an adaptive filter
- Patent number 5,218,560
- Issue date Jun 8, 1993
- NEC Corporation
- Shigeji Ikeda
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Multi-pulse coding system
- Patent number 4,908,863
- Issue date Mar 13, 1990
- Tetsu Taguchi
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

Information Patent Application
BATTERY PACK
- Publication number 20230361369
- Publication date Nov 9, 2023
- SONY CORPORATION
- Atsuhiro Kumagai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
BATTERY PACK
- Publication number 20220352568
- Publication date Nov 3, 2022
- SONY CORPORATION
- Atsuhiro Kumagai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
BATTERY PACK
- Publication number 20200358144
- Publication date Nov 12, 2020
- SONY CORPORATION
- Atsuhiro Kumagai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
BATTERY PACK
- Publication number 20180006339
- Publication date Jan 4, 2018
- SONY CORPORATION
- Atsuhiro Kumagai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
BATTERY PACK
- Publication number 20150050534
- Publication date Feb 19, 2015
- SONY CORPORATION
- Atsuhiro Kumagai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Memory device, refresh control circuit to be used for the memory de...
- Publication number 20040179416
- Publication date Sep 16, 2004
- Shigeji Ikeda
- G11 - INFORMATION STORAGE

Shigeji Ikeda

Person

Patents Grantslast 30 patents

Battery pack

Battery pack

Battery pack

Battery pack

Battery pack

Memory device, refresh control circuit to be used for the memory de...

Noise cancelling method and noise cancelling unit

Noise canceling method and apparatus for the same

Adaptive filter and adapting method thereof

Noise canceler

Noise canceling method and apparatus therefor

Adaptive filter with disabling circuit for fast tap weight convergence

Noise cancelling method and noise canceller with variable step size...

Noise cancelling device capable of achieving a reduced convergence...

Adaptive filter capable of removing a residual echo at a rapid speed

Circuit for controlling tap gains at rapid speed in an adaptive filter

Multi-pulse coding system

Patents Applicationslast 30 patents

BATTERY PACK

BATTERY PACK

BATTERY PACK

BATTERY PACK

BATTERY PACK

Memory device, refresh control circuit to be used for the memory de...