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Kazuto KAWAKAMI
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Kisarazu-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Steel for cold forging
Patent number
10,533,242
Issue date
Jan 14, 2020
Nippon Steel Corporation
Takahiko Kohtake
C21 - METALLURGY OF IRON
Information
Patent Grant
Non-oriented electrical steel sheet and manufacturing method thereof
Patent number
9,595,376
Issue date
Mar 14, 2017
Nippon Steel & Sumitomo Metal Corporation
Masafumi Miyazaki
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Non-oriented electrical steel sheet and manufacturing method thereof
Patent number
9,085,817
Issue date
Jul 21, 2015
Nippon Steel & Sumitomo Metal Corporation
Masafumi Miyazaki
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Non-oriented electrical steel sheet
Patent number
8,840,734
Issue date
Sep 23, 2014
Nippon Steel & Sumitomo Metal Corporation
Masafumi Miyazaki
C21 - METALLURGY OF IRON
Information
Patent Grant
Gas charge container, atom probe apparatus, and method for analyzin...
Patent number
8,567,233
Issue date
Oct 29, 2013
Nippon Steel & Sumitomo Metal Corporation
Jun Takahashi
G01 - MEASURING TESTING
Information
Patent Grant
Lead-free solder alloy, solder ball and electronic member, and lead...
Patent number
8,562,906
Issue date
Oct 22, 2013
Nippon Steel & Sumikin Materials Co., Ltd.
Masamoto Tanaka
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Stainless steel, titanium, or titanium alloy solid polymer fuel cel...
Patent number
8,304,141
Issue date
Nov 6, 2012
Sintokogio Ltd.
Hiroshi Kihira
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Stainless steel, titanium, or titanium alloy solid polymer fuel cel...
Patent number
7,807,281
Issue date
Oct 5, 2010
Nippon Steel Corporation
Hiroshi Kihira
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Control device for power converter
Patent number
6,643,150
Issue date
Nov 4, 2003
Kabushiki Kaisha Toshiba
Kazuto Kawakami
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power conversion device
Patent number
6,507,505
Issue date
Jan 14, 2003
Kabushiki Kaisha Toshiba
Toshiaki Oka
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Multiple inverter system
Patent number
6,229,722
Issue date
May 8, 2001
Kabushiki Kaisha Toshiba
Kosaku Ichikawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power converter with voltage drive switching device monitored by de...
Patent number
5,929,665
Issue date
Jul 27, 1999
Kabushiki Kaisha Toshiba
Kosaku Ichikawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Gate drive circuit for voltage-driven type power switching device
Patent number
5,621,257
Issue date
Apr 15, 1997
Kabushiki Kaisha Toshiba
Kazuto Kawakami
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Current sharing control in a parallel inverter system
Patent number
5,191,519
Issue date
Mar 2, 1993
Kabushiki Kaisha Toshiba
Kazuto Kawakami
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Off-gate circuit for a GTO thyristor
Patent number
4,752,705
Issue date
Jun 21, 1988
Kabushiki Kaisha Toshiba
Yukinori Tsuruta
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Turbine helper drive apparatus
Patent number
4,721,861
Issue date
Jan 26, 1988
Kabushiki Kaisha Toshiba
Suzuo Saito
G05 - CONTROLLING REGULATING
Patents Applications
last 30 patents
Information
Patent Application
STEEL FOR COLD FORGING
Publication number
20170114434
Publication date
Apr 27, 2017
NIPPON STEEL & SUMITOMO METAL CORPORATION
Takahiko KOHTAKE
C21 - METALLURGY OF IRON
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET AND MANUFACTURING METHOD THEREOF
Publication number
20150279531
Publication date
Oct 1, 2015
NIPPON STEEL & SUMITOMO METAL CORPORATION
Masafumi MIYAZAKI
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20140072471
Publication date
Mar 13, 2014
Masafumi Miyazaki
C21 - METALLURGY OF IRON
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET AND MANUFACTURING METHOD THEREOF
Publication number
20120014828
Publication date
Jan 19, 2012
NIPPON STEEL CORPORATION
Masafumi Miyazaki
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
GAS CHARGE CONTAINER, ATOM PROBE APPARATUS, AND METHOD FOR ANALYZIN...
Publication number
20110113858
Publication date
May 19, 2011
Jun Takahashi
G01 - MEASURING TESTING
Information
Patent Application
Stainless steel, titanium, or titanium alloy solid polymer fuel cel...
Publication number
20110032537
Publication date
Feb 10, 2011
NIPPON STEEL CORPORATION
Hiroshi Kihira
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
LEAD-FREE SOLDER ALLOY, SOLDER BALL AND ELECTRONIC MEMBER, AND LEAD...
Publication number
20090304545
Publication date
Dec 10, 2009
Nippon Steel Materials Co., Ltd.
Masamoto Tanaka
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Control device for power converter
Publication number
20020131285
Publication date
Sep 19, 2002
Kabushiki Kaisha Toshiba
Kazuto Kawakami
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Power conversion device
Publication number
20010048604
Publication date
Dec 6, 2001
Toshiaki Oka
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER