Yoshio Hamadate

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Hitachiohta, JP

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Patents Grantslast 30 patents

Information Patent Grant
Stationary induction apparatus
- Patent number 10,665,382
- Issue date May 26, 2020
- Hitachi, Ltd.
- Naoya Miyamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Stationary induction electrical apparatus
- Patent number 10,658,106
- Issue date May 19, 2020
- Hitachi, Ltd.
- Youichirou Yamada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Diagnosing device for on-load tap changing apparatus, diagnosing me...
- Patent number 10,509,021
- Issue date Dec 17, 2019
- Hitachi, Ltd.
- Li Lu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Power switchgear
- Patent number 9,613,762
- Issue date Apr 4, 2017
- Hitachi, Ltd.
- Jun Nukaga
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Superconducting magnet apparatus and magnetic resonance imaging app...
- Patent number 7,961,067
- Issue date Jun 14, 2011
- Hitachi, Ltd.
- Tomoo Chiba
- G01 - MEASURING TESTING
Information Patent Grant
Stationary induction apparatus
- Patent number 6,639,497
- Issue date Oct 28, 2003
- Hitachi, Ltd.
- Yoshio Hamadate
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Stationary induction apparatus
- Patent number 6,469,607
- Issue date Oct 22, 2002
- Hitachi, Ltd.
- Yoshio Hamadate
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Diagnosing Device for On-Load Tap Changing Apparatus, Diagnosing Me...
- Publication number 20190101521
- Publication date Apr 4, 2019
- Hitachi, Ltd
- Li LU
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Stationary Induction Apparatus
- Publication number 20180204670
- Publication date Jul 19, 2018
- Hitachi, Ltd
- Naoya MIYAMOTO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
STATIONARY INDUCTION ELECTRICAL APPARATUS
- Publication number 20180068785
- Publication date Mar 8, 2018
- Hitachi, Ltd
- Youichirou YAMADA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Power Switchgear
- Publication number 20160035501
- Publication date Feb 4, 2016
- Hitachi, Ltd
- Jun NUKAGA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SUPERCONDUCTING MAGNET APPARATUS AND MAGNETIC RESONANCE IMAGING APP...
- Publication number 20080024254
- Publication date Jan 31, 2008
- Tomoo Chiba
- G01 - MEASURING TESTING
Information Patent Application
Stationary induction apparatus
- Publication number 20020196117
- Publication date Dec 26, 2002
- Hitachi, Ltd.
- Yoshio Hamadate
- H01 - BASIC ELECTRIC ELEMENTS