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Kunikazu TOMITA
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Sendai-shi, Miyagi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Steel for nitrocarburizing and nitrocarburized component, and metho...
Patent number
11,959,177
Issue date
Apr 16, 2024
JFE Steel Corporation
Masayuki Kasai
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Case hardening steel
Patent number
11,702,716
Issue date
Jul 18, 2023
JFE Steel Corporation
Keisuke Ando
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Case hardening steel, method of producing case hardening steel, and...
Patent number
11,174,543
Issue date
Nov 16, 2021
JFE Steel Corporation
Keisuke Ando
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Steel for nitrocarburizing and nitrocarburized component, and metho...
Patent number
10,125,416
Issue date
Nov 13, 2018
JFE Steel Corporation
Yasuhiro Omori
C21 - METALLURGY OF IRON
Information
Patent Grant
Low carbon resulfurized free cutting steel
Patent number
8,691,141
Issue date
Apr 8, 2014
JFE Bars & Shapes Corporation
Toshiyuki Murakami
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
High-strength stabilizer steel for vehicles having excellent corros...
Patent number
8,206,521
Issue date
Jun 26, 2012
NHK Spring Co., Ltd.
Katsuhiko Kikuchi
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing steel part having long rolling contact fatigue...
Patent number
8,118,953
Issue date
Feb 21, 2012
JFE Steel Corporation
Takashi Iwamoto
C21 - METALLURGY OF IRON
Information
Patent Grant
High strength hot rolled steel sheet
Patent number
6,666,932
Issue date
Dec 23, 2003
NKK Corporation
Yoshimasa Funakawa
C21 - METALLURGY OF IRON
Information
Patent Grant
Steel sheet for heat shrink band effective for preventing color drift
Patent number
6,554,917
Issue date
Apr 29, 2003
NKK Corporation
Nobuo Yamagami
C21 - METALLURGY OF IRON
Information
Patent Grant
Hot-dip galvanized steel sheet and method for producing the same
Patent number
6,440,584
Issue date
Aug 27, 2002
NKK Corporation
Yasunobu Nagataki
C21 - METALLURGY OF IRON
Information
Patent Grant
Heat shrink band steel sheet and manufacturing method thereof
Patent number
6,416,594
Issue date
Jul 9, 2002
NKK Corporation
Nobuo Yamagami
C21 - METALLURGY OF IRON
Information
Patent Grant
Steel sheet for heat-shrink band
Patent number
5,968,661
Issue date
Oct 19, 1999
Sony Corporation
Ichiro Saito
B32 - LAYERED PRODUCTS
Information
Patent Grant
Method of making non-oriented electrical steel sheets
Patent number
5,169,457
Issue date
Dec 8, 1992
NKK Corporation
Akihiko Nishimoto
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of making non-oriented electrical steel sheets having excell...
Patent number
5,164,024
Issue date
Nov 17, 1992
NKK Corporation
Akihiko Nishimoto
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of making non-oriented electrical steel sheets having excell...
Patent number
5,116,436
Issue date
May 26, 1992
NKK Corporation
Akihiko Nishimoto
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of making non-oriented electrical steel sheets having excell...
Patent number
5,108,522
Issue date
Apr 28, 1992
NKK Corporation
Akihiko Nishimoto
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of making non-oriented electrical steel sheets
Patent number
5,074,930
Issue date
Dec 24, 1991
NKK Corporation
Akihiko Nishimoto
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of making non-oriented electrical steel sheets
Patent number
5,062,906
Issue date
Nov 5, 1991
NKK Corporation
Akihiko Nishimoto
C21 - METALLURGY OF IRON
Information
Patent Grant
Pickling method for electrical steel bands
Patent number
5,061,321
Issue date
Oct 29, 1991
NKK Corporation
Akihiko Nishimoto
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Method of making non-oriented silicon steel sheets having excellent...
Patent number
5,009,726
Issue date
Apr 23, 1991
NKK Corporation
Akihiko Nishimoto
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
Information
Patent Application
STEEL FOR NITROCARBURIZING AND NITROCARBURIZED COMPONENT, AND METHO...
Publication number
20210102283
Publication date
Apr 8, 2021
JFE STEEL CORPORATION
Masayuki KASAI
C21 - METALLURGY OF IRON
Information
Patent Application
CASE HARDENING STEEL, METHOD OF PRODUCING CASE HARDENING STEEL, AND...
Publication number
20190352762
Publication date
Nov 21, 2019
JFE STEEL CORPORATION
Keisuke ANDO
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
STEEL FOR NITROCARBURIZING AND NITROCARBURIZED COMPONENT, AND METHO...
Publication number
20180105919
Publication date
Apr 19, 2018
JFE STEEL CORPORATION
Masayuki KASAI
C21 - METALLURGY OF IRON
Information
Patent Application
CASE HARDENING STEEL
Publication number
20180030563
Publication date
Feb 1, 2018
JFE STEEL CORPORATION
Keisuke ANDO
C21 - METALLURGY OF IRON
Information
Patent Application
STABILIZER STEEL HAVING HIGH STRENGTH AND EXCELLENT CORROSION RESIS...
Publication number
20170130288
Publication date
May 11, 2017
JFE Bars & Shapes Corporation
Kazuaki FUKUOKA
B60 - VEHICLES IN GENERAL
Information
Patent Application
STEEL FOR VEHICLE SUSPENSION SPRING PART, VEHICLE SUSPENSION SPRING...
Publication number
20170021691
Publication date
Jan 26, 2017
NHK Spring Co., Ltd.
Akira TANGE
B60 - VEHICLES IN GENERAL
Information
Patent Application
STEEL FOR NITROCARBURIZING AND NITROCARBURIZED COMPONENT, AND METHO...
Publication number
20150159261
Publication date
Jun 11, 2015
JFE STEEL CORPORATION
Yasuhiro Omori
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL FOR NITROCARBURIZING AND NITROCARBURIZED COMPONENT USING THE...
Publication number
20150020926
Publication date
Jan 22, 2015
JFE BARS & SHAPES CORPORATION
Takashi Iwamoto
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL FOR VEHICLE SUSPENSION SPRING PART, VEHICLE SUSPENSION SPRING...
Publication number
20140060709
Publication date
Mar 6, 2014
JFE BARS & SHAPES CORPORATION
Akira TANGE
B60 - VEHICLES IN GENERAL
Information
Patent Application
HIGH-STRENGTH STABILIZER STEEL FOR VEHICLES HAVING EXCELLENT CORROS...
Publication number
20110290382
Publication date
Dec 1, 2011
JFE BARS & SHAPES CORPORATION
Katsuhiko KIKUCHI
C21 - METALLURGY OF IRON
Information
Patent Application
LOW CARBON RESULFURIZED FREE CUTTING STEEL
Publication number
20110243786
Publication date
Oct 6, 2011
Toshiyuki Murakami
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD FOR PRODUCING STEEL PART HAVING LONG ROLLING CONTACT FATIGUE...
Publication number
20100139819
Publication date
Jun 10, 2010
JFE STEEL CORPORATION
Takashi Iwamoto
C21 - METALLURGY OF IRON
Information
Patent Application
Steel part having long rolling contact fatigue life and method for...
Publication number
20070199632
Publication date
Aug 30, 2007
JFE Steel Corporation,a corporation of Japan
Takashi Iwamoto
C21 - METALLURGY OF IRON
Information
Patent Application
High strength hot rolled steel sheet and method for manufacturing t...
Publication number
20040074573
Publication date
Apr 22, 2004
NKK Corporation
Yoshimasa Funakawa
C21 - METALLURGY OF IRON
Information
Patent Application
High strength hot rolled steel sheet and method for manufacturing t...
Publication number
20030063996
Publication date
Apr 3, 2003
NKK Corporation
Yoshimasa Funakawa
C21 - METALLURGY OF IRON
Information
Patent Application
Hot-dip galvanized steel sheet and method for producing the same
Publication number
20020088510
Publication date
Jul 11, 2002
NKK Corporation
Yasunobu Nagataki
C21 - METALLURGY OF IRON