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Yasuyuki Hayakawa
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Kurashiki-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Grain-oriented electrical steel sheet and method for manufacturing...
Patent number
11,560,603
Issue date
Jan 24, 2023
JFE STEEL CORPORATION
Yasuyuki Hayakawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of producing grain-oriented electrical steel sheet
Patent number
11,459,629
Issue date
Oct 4, 2022
JFE Steel Corporation
Yasuyuki Hayakawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of producing grain-oriented electrical steel sheet
Patent number
11,332,801
Issue date
May 17, 2022
JFE Steel Corporation
Yuiko Ehashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for nitriding grain-oriented electrical steel sheet
Patent number
11,198,917
Issue date
Dec 14, 2021
JFE Steel Corporation
Hiroshi Matsuda
C21 - METALLURGY OF IRON
Information
Patent Grant
Oriented electromagnetic steel sheet and method for manufacturing o...
Patent number
11,091,842
Issue date
Aug 17, 2021
JFE Steel Corporation
Takumi Umada
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of producing grain-oriented electrical steel sheet
Patent number
11,066,722
Issue date
Jul 20, 2021
JFE Steel Corporation
Takeshi Imamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Grain-oriented electrical steel sheet and method for manufacturing...
Patent number
10,844,452
Issue date
Nov 24, 2020
JFE Steel Corporation
Yukihiro Shingaki
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for manufacturing grain-oriented electrical steel sheet
Patent number
10,428,403
Issue date
Oct 1, 2019
JFE Steel Corporation
Yasuyuki Hayakawa
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method and device for nitriding grain-oriented electrical steel sheet
Patent number
10,214,793
Issue date
Feb 26, 2019
JFE Steel Corporation
Hiroshi Matsuda
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Apparatus and method for nitriding grain-oriented electrical steel...
Patent number
10,066,286
Issue date
Sep 4, 2018
JFE Steel Corporation
Hiroshi Matsuda
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of producing grain oriented electrical steel sheet
Patent number
9,978,489
Issue date
May 22, 2018
JFE Steel Corporation
Masanori Takenaka
C21 - METALLURGY OF IRON
Information
Patent Grant
Production method for grain-oriented electrical steel sheet and pri...
Patent number
9,905,343
Issue date
Feb 27, 2018
JFE Steel Corporation
Yukihiro Shingaki
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing grain-oriented electrical steel sheet
Patent number
9,748,028
Issue date
Aug 29, 2017
JFE Steel Corporation
Yukihiro Shingaki
C21 - METALLURGY OF IRON
Information
Patent Grant
Production method for grain-oriented electrical steel sheet
Patent number
9,708,682
Issue date
Jul 18, 2017
JFE Steel Corporation
Yasuyuki Hayakawa
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for manufacturing grain oriented electrical steel sheet
Patent number
9,574,249
Issue date
Feb 21, 2017
JFE Steel Corporation
Takeshi Omura
C21 - METALLURGY OF IRON
Information
Patent Grant
Grain oriented electrical steel sheet and method for manufacturing...
Patent number
8,784,995
Issue date
Jul 22, 2014
JFE Steel Corporation
Takeshi Omura
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing grain oriented magnetic steel sheet and grain...
Patent number
7,465,361
Issue date
Dec 16, 2008
JFE Steel Corporation
Takashi Terashima
C21 - METALLURGY OF IRON
Information
Patent Grant
Grain-oriented magnetic steel sheet having no undercoat film compri...
Patent number
7,371,291
Issue date
May 13, 2008
JFE Steel Corporation
Yasuyuki Hayakawa
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of making grain-oriented magnetic steel sheet having low iro...
Patent number
RE39482
Issue date
Feb 6, 2007
JFE Steel Corporation
Yasuyuki Hayakawa
148 - Metal treatment
Information
Patent Grant
Grain-oriented magnetic steel sheet having no undercoat film compri...
Patent number
6,942,740
Issue date
Sep 13, 2005
JFE Steel Corporation
Yasuyuki Hayakawa
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of manufacturing grain-oriented electrical steel sheets
Patent number
6,811,619
Issue date
Nov 2, 2004
JFE Steel Corporation
Yasuyuki Hayakawa
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of manufacturing grain-oriented electrical steel sheet
Patent number
6,676,771
Issue date
Jan 13, 2004
JFE Steel Corporation
Minoru Takashima
C21 - METALLURGY OF IRON
Information
Patent Grant
Electrical steel sheet suitable for compact iron core and manufactu...
Patent number
6,562,473
Issue date
May 13, 2003
Kawasaki Steel Corporation
Seiji Okabe
C21 - METALLURGY OF IRON
Information
Patent Grant
Non-oriented magnetic steel sheet having low iron loss and high mag...
Patent number
6,531,001
Issue date
Mar 11, 2003
Kawasaki Steel Corporation
Yasuyuki Hayakawa
C21 - METALLURGY OF IRON
Information
Patent Grant
Non-oriented magnetic steel sheet having low iron loss and high mag...
Patent number
6,436,199
Issue date
Aug 20, 2002
Kawasaki Steel Corporation
Yasuyuki Hayakawa
C21 - METALLURGY OF IRON
Information
Patent Grant
Electromagnetic steel sheet and process for producing the same
Patent number
6,432,227
Issue date
Aug 13, 2002
Kawasaki Steel Corporation
Yasuyuki Hayakawa
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of making grain-oriented magnetic steel sheet having low iro...
Patent number
6,423,157
Issue date
Jul 23, 2002
Kawasaki Steel Corporation
Yasuyuki Hayakawa
C21 - METALLURGY OF IRON
Information
Patent Grant
Electromagnetic steel sheet and process for producing the same
Patent number
6,322,635
Issue date
Nov 27, 2001
Kawasaki Steel Corporation
Yasuyuki Hayakawa
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of making grain-oriented magnetic steel sheet having low iro...
Patent number
6,309,473
Issue date
Oct 30, 2001
Kawasaki Steel Corporation
Yasuyuki Hayakawa
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of cold rolling grain-oriented silicon steel sheet having ex...
Patent number
5,666,842
Issue date
Sep 16, 1997
Kawasaki Steel Corporation
Michiro Komatsubara
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR PRODUCING PHOSPHATE DIESTER OR PHOSPHATE TRIESTER
Publication number
20230097969
Publication date
Mar 30, 2023
Saga University
Shin-ichi KAWAGUCHI
C07 - ORGANIC CHEMISTRY
Information
Patent Application
METHOD FOR MANUFACTURING A GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20230045475
Publication date
Feb 9, 2023
JFE STEEL CORPORATION
Yasuyuki HAYAKAWA
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD OF PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20190271054
Publication date
Sep 5, 2019
JFE STEEL CORPORATION
Yuiko EHASHI
C21 - METALLURGY OF IRON
Information
Patent Application
ORIENTED ELECTROMAGNETIC STEEL SHEET AND METHOD FOR MANUFACTURING O...
Publication number
20190256985
Publication date
Aug 22, 2019
JFE STEEL CORPORATION
Takumi Umada
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING...
Publication number
20190233914
Publication date
Aug 1, 2019
JFE STEEL CORPORATION
Yasuyuki HAYAKAWA
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR NITRIDING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20190119773
Publication date
Apr 25, 2019
JFE STEEL CORPORATION
Hiroshi MATSUDA
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
METHOD OF PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20190112685
Publication date
Apr 18, 2019
JFE STEEL CORPORATION
Masanori TAKENAKA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
METHOD OF PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20190085423
Publication date
Mar 21, 2019
JFE STEEL CORPORATION
Yasuyuki HAYAKAWA
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD OF PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20190055619
Publication date
Feb 21, 2019
JFE STEEL CORPORATION
Takeshi IMAMURA
C21 - METALLURGY OF IRON
Information
Patent Application
GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING...
Publication number
20180171425
Publication date
Jun 21, 2018
JFE STEEL CORPORATION
Yukihiro SHINGAKI
C21 - METALLURGY OF IRON
Information
Patent Application
GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR PRODUCING SAME
Publication number
20180037966
Publication date
Feb 8, 2018
JFE STEEL CORPORATION
Yasuyuki HAYAKAWA
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR MANUFACTURING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20170321296
Publication date
Nov 9, 2017
JFE STEEL CORPORATION
Yasuyuki HAYAKAWA
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD OF MANUFACTURING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20170240988
Publication date
Aug 24, 2017
JFE STEEL CORPORATION
Takeshi IMAMURA
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD OF PRODUCING GRAIN ORIENTED ELECTRICAL STEEL SHEET
Publication number
20160196909
Publication date
Jul 7, 2016
JFE STEEL CORPORATION
Masanori TAKENAKA
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD AND DEVICE FOR NITRIDING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20150368732
Publication date
Dec 24, 2015
JFE STEEL CORPORATION
Hiroshi MATSUDA
C21 - METALLURGY OF IRON
Information
Patent Application
APPARATUS AND METHOD FOR NITRIDING GRAIN-ORIENTED ELECTRICAL STEEL...
Publication number
20150361544
Publication date
Dec 17, 2015
JFE STEEL CORPORATION
Hiroshi MATSUDA
C21 - METALLURGY OF IRON
Information
Patent Application
APPARATUS AND METHOD FOR NITRIDING GRAIN-ORIENTED ELECTRICAL STEEL...
Publication number
20150354051
Publication date
Dec 10, 2015
JFE STEEL CORPORATION
Hiroshi MATSUDA
C21 - METALLURGY OF IRON
Information
Patent Application
PRODUCTION METHOD FOR GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND PRI...
Publication number
20150318092
Publication date
Nov 5, 2015
JFE STEEL CORPORATION
Yukihiro SHINGAKI
C21 - METALLURGY OF IRON
Information
Patent Application
PRODUCTION METHOD FOR GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20150299819
Publication date
Oct 22, 2015
JFE STEEL CORPORATION
Yasuyuki HAYAKAWA
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20150194247
Publication date
Jul 9, 2015
JFE STEEL CORPORATION
Yukihiro Shingaki
C21 - METALLURGY OF IRON
Information
Patent Application
GRAIN ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING...
Publication number
20130160901
Publication date
Jun 27, 2013
JFE STEEL CORPORATION
Takeshi Omura
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR MANUFACTURING GRAIN ORIENTED ELECTRICAL STEEL SHEET
Publication number
20130074996
Publication date
Mar 28, 2013
JFE STEEL CORPORATION
Takeshi Omura
C21 - METALLURGY OF IRON
Information
Patent Application
Method for producing grain oriented magnetic steel sheet and grain...
Publication number
20060076086
Publication date
Apr 13, 2006
Takashi Terashima
C21 - METALLURGY OF IRON
Information
Patent Application
Grain-oriented magnetic steel sheet having no undercoat film compri...
Publication number
20050224142
Publication date
Oct 13, 2005
JFE Steel Corporation, a corporation of Japan
Yasuyuki Hayakawa
C21 - METALLURGY OF IRON
Information
Patent Application
Grain-oriented magnetic steel sheet having no undercoat film compri...
Publication number
20040074565
Publication date
Apr 22, 2004
Yasuyuki Hayakawa
C21 - METALLURGY OF IRON
Information
Patent Application
Method of manufacturing grain-oriented electrical steel sheets
Publication number
20030116236
Publication date
Jun 26, 2003
Kawasaki Steel Corporation
Yasuyuki Hayakawa
C21 - METALLURGY OF IRON
Information
Patent Application
Method of manufacturing grain-oriented electrical steel sheet
Publication number
20030034092
Publication date
Feb 20, 2003
KAWASAKI STEEL CORPORATION
Minoru Takashima
C21 - METALLURGY OF IRON
Information
Patent Application
Non-oriented magnetic steel sheet having low iron loss and high mag...
Publication number
20030024606
Publication date
Feb 6, 2003
Kawasaki Steel Corporation
Yasuyuki Hayakawa
C21 - METALLURGY OF IRON
Information
Patent Application
Electromagnetic steel sheet and process for producing the same
Publication number
20020059966
Publication date
May 23, 2002
Kawasaki Steel Corporation
Yasuyuki Hayakawa
C21 - METALLURGY OF IRON
Information
Patent Application
Method of making grain-oriented magnetic steel sheet having low iro...
Publication number
20010030001
Publication date
Oct 18, 2001
Kawasaki Steel Corporation
Yasuyuki Hayakawa
C21 - METALLURGY OF IRON