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Katsuhiko Ohishi
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Yonago, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Production method for maraging steel and production method for mara...
Patent number
10,316,377
Issue date
Jun 11, 2019
Hitachi Metals, Ltd.
Takahiko Kamimura
C21 - METALLURGY OF IRON
Information
Patent Grant
Maraging steel strip
Patent number
8,747,574
Issue date
Jun 10, 2014
Hitachi Metals, Ltd.
Katsuhiko Ohishi
C21 - METALLURGY OF IRON
Information
Patent Grant
Heat-resisting steel for engine valves excellent in high temperatur...
Patent number
8,741,215
Issue date
Jun 3, 2014
Hitachi Metals, Ltd.
Katsuhiko Ohishi
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Heat-resisting steel for engine valves excellent in high-temperatur...
Patent number
8,663,549
Issue date
Mar 4, 2014
Hitachi Metals, Ltd.
Katsuhiko Ohishi
C21 - METALLURGY OF IRON
Information
Patent Grant
Piston ring material for internal combustion engine
Patent number
8,480,821
Issue date
Jul 9, 2013
Hitachi Metals Ltd.
Katsuhiko Ohishi
C21 - METALLURGY OF IRON
Information
Patent Grant
Alloy to be surface-coated and sliding members
Patent number
8,409,712
Issue date
Apr 2, 2013
Hitachi Metals Ltd.
Kenji Yokoyama
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Patents Applications
last 30 patents
Information
Patent Application
PRODUCTION METHOD FOR MARAGING STEEL AND PRODUCTION METHOD FOR MARA...
Publication number
20170159140
Publication date
Jun 8, 2017
Hitachi Metals, Ltd.
Takahiko KAMIMURA
C21 - METALLURGY OF IRON
Information
Patent Application
MARAGING STEEL
Publication number
20140230968
Publication date
Aug 21, 2014
Hitachi Metals, Ltd.
Katsuhiko Ohishi
C21 - METALLURGY OF IRON
Information
Patent Application
Piston Ring Material For Internal Combustion Engine
Publication number
20120145289
Publication date
Jun 14, 2012
Hitachi Metals, Ltd.
Katsuhiko OHISHI
C21 - METALLURGY OF IRON
Information
Patent Application
COATED-SURFACE SLIDING PART HAVING EXCELLENT COATING ADHESION AND M...
Publication number
20120114964
Publication date
May 10, 2012
Hitachi Metals, Ltd.
Fumiaki Honda
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
HEAT-RESISTING STEEL FOR ENGINE VALVES EXCELLENT IN HIGH TEMPERATUR...
Publication number
20120107169
Publication date
May 3, 2012
Katsuhiko Ohishi
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
MARAGING STEEL STRIP
Publication number
20120031529
Publication date
Feb 9, 2012
Hitachi Metals, Ltd.
Katsuhiko Ohishi
C21 - METALLURGY OF IRON
Information
Patent Application
Heat-resistant steel for engine valve excellent high-temperature st...
Publication number
20110182764
Publication date
Jul 28, 2011
Katsuhiko Ohishi
C21 - METALLURGY OF IRON
Information
Patent Application
PISTON RING MATERIAL FOR INTERNAL COMBUSTION ENGINE
Publication number
20110018207
Publication date
Jan 27, 2011
Hitachi Metals, Ltd.
Katsuhiko Ohishi
C21 - METALLURGY OF IRON
Information
Patent Application
ALLOY TO BE SURFACE-COATED AND SLIDING MEMBERS
Publication number
20100291407
Publication date
Nov 18, 2010
Hitachi Metals, Ltd.
Kenji Yokoyama
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
MARAGING STEEL AND MARAGING STEEL FOR METALLIC BELT
Publication number
20100189590
Publication date
Jul 29, 2010
Hitachi Metals, Ltd.
Katsuhiko Ohishi
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
PISTON RING MATERIAL FOR INTERNAL COMBUSTION ENGINE
Publication number
20100158745
Publication date
Jun 24, 2010
Hitachi Metals, Ltd.
Katsuhiko Ohishi
C21 - METALLURGY OF IRON
Information
Patent Application
POROUS LIQUID ABSORBING-AND-HOLDING MEMBER, PROCESS FOR PRODUCTION...
Publication number
20090196782
Publication date
Aug 6, 2009
Hitachi Metals, Ltd.
Kenji Date
B22 - CASTING POWDER METALLURGY
Information
Patent Application
Porous liquid absorbing-and-holding member, process for production...
Publication number
20060188741
Publication date
Aug 24, 2006
HITACHI METALS, LTD
Kenji Date
B22 - CASTING POWDER METALLURGY