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Hirofumi IMAI
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Kisarazu-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Grain-oriented electrical steel sheet
Patent number
10,906,134
Issue date
Feb 2, 2021
Nippon Steel Corporation
Hideyuki Hamamura
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Grain-oriented electrical steel sheet
Patent number
10,662,491
Issue date
May 26, 2020
Nippon Steel Corporation
Takahito Mizumura
C21 - METALLURGY OF IRON
Information
Patent Grant
Grain-oriented electrical steel sheet
Patent number
10,434,606
Issue date
Oct 8, 2019
Nippon Steel Corporation
Hideyuki Hamamura
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Grain-oriented electrical steel sheet
Patent number
10,385,418
Issue date
Aug 20, 2019
Nippon Steel Corporation
Hisashi Mogi
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Grain-oriented magnetic steel sheet and method of producing the same
Patent number
10,131,018
Issue date
Nov 20, 2018
Nippon Steel & Sumitomo Metal Corporation
Koji Hirano
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Laser processing apparatus and laser irradiation method
Patent number
9,607,744
Issue date
Mar 28, 2017
Nippon Steel & Sumitomo Metal Corporation
Koji Hirano
C21 - METALLURGY OF IRON
Information
Patent Grant
Laser processing apparatus and laser processing method
Patent number
9,415,465
Issue date
Aug 16, 2016
Nippon Steel & Sumitomo Metal Corporation
Koji Hirano
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Laser apparatus and laser materials processing apparatus provided w...
Patent number
9,172,202
Issue date
Oct 27, 2015
Nippon Steel & Sumitomo Metal Corporation
Hirofumi Imai
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of producing common rail and common rail
Patent number
8,794,215
Issue date
Aug 5, 2014
Nippon Steel & Sumitomo Metal Corporation
Koji Hirano
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Semiconductor laser device and solid-state laser device using same
Patent number
7,230,968
Issue date
Jun 12, 2007
Nippon Steel Corporation
Hirofumi Imai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor laser apparatus capable of routing laser beams emitte...
Patent number
7,079,566
Issue date
Jul 18, 2006
Nippon Steel Corporation
Motoi Kido
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor laser-pumped solid state laser system and optical cou...
Patent number
5,369,661
Issue date
Nov 29, 1994
Nippon Steel Corporation
Satoshi Yamaguchi
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20190048434
Publication date
Feb 14, 2019
NIPPON STEEL & SUMITOMO METAL CORPORATION
Takahito MIZUMURA
B32 - LAYERED PRODUCTS
Information
Patent Application
GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20180066334
Publication date
Mar 8, 2018
NIPPON STEEL & SUMITOMO METAL CORPORATION
Hisashi MOGI
C21 - METALLURGY OF IRON
Information
Patent Application
GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20180043474
Publication date
Feb 15, 2018
NIPPON STEEL & SUMITOMO METAL CORPORATION
Hideyuki HAMAMURA
B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information
Patent Application
GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20180036838
Publication date
Feb 8, 2018
NIPPON STEEL & SUMITOMO METAL CORPORATION
Hideyuki HAMAMURA
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Application
LASER PROCESSING APPARATUS
Publication number
20170157706
Publication date
Jun 8, 2017
NIPPON STEEL & SUMITOMO METAL CORPORATION
Koji HIRANO
C21 - METALLURGY OF IRON
Information
Patent Application
LASER PROCESSING APPARATUS
Publication number
20170136575
Publication date
May 18, 2017
NIPPON STEEL & SUMITOMO METAL CORPORATION
Koji HIRANO
C21 - METALLURGY OF IRON
Information
Patent Application
LASER PROCESSING APPARATUS AND LASER IRRADIATION METHOD
Publication number
20150318091
Publication date
Nov 5, 2015
NIPPON STEEL & SUMITOMO METAL CORPORATION
Koji HIRANO
C21 - METALLURGY OF IRON
Information
Patent Application
GRAIN-ORIENTED MAGNETIC STEEL SHEET AND METHOD OF PRODUCING THE SAME
Publication number
20150059932
Publication date
Mar 5, 2015
NIPPON STEEL & SUMITOMO METAL CORPORATION
Koji Hirano
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
LASER PROCESSING APPARATUS AND LASER PROCESSING METHOD
Publication number
20140076870
Publication date
Mar 20, 2014
NIPPON STEEL & SMITOMO METAL CORPORATION
Koji Hirano
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
LASER APPARATUS AND LASER MATERIALS PROCESSING APPARATUS PROVIDED W...
Publication number
20130215914
Publication date
Aug 22, 2013
NIPPON STEEL & SUMITOMO METAL CORPORATION
Hirofumi Imai
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD OF PRODUCING COMMON RAIL AND COMMON RAIL
Publication number
20110005493
Publication date
Jan 13, 2011
Koji Hirano
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
SEMICONDUCTOR LASER APPARATUS CAPABLE OF ROUTING LASER BEAMS EMITTE...
Publication number
20060126690
Publication date
Jun 15, 2006
Nippon Steel Corporation
Motoi Kido
G02 - OPTICS
Information
Patent Application
Semiconductor laser device and solid-state laser device using same
Publication number
20050063435
Publication date
Mar 24, 2005
Hirofumi Imai
G02 - OPTICS