Membership
Tour
Register
Log in
Yasuo Kamitsuma
Follow
Person
Mito, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Compressor scroll made of silicon containing aluminum alloy
Patent number
5,478,220
Issue date
Dec 26, 1995
Hitachi, Ltd.
Yasuo Kamitsuma
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Highly ductile sintered aluminum alloy, method for production there...
Patent number
5,387,272
Issue date
Feb 7, 1995
Hitachi, Ltd.
Yasuo Kamitsuma
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method of manufacturing sintered aluminum alloy parts
Patent number
5,346,667
Issue date
Sep 13, 1994
Hitachi, Ltd.
Yasuo Kamitsuma
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Sliding structure such as compressor or the like
Patent number
5,087,181
Issue date
Feb 11, 1992
Hitachi, Ltd.
Yasuo Kamitsuma
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Rotary compressor having oxidizing and nitriding surface treatment
Patent number
4,944,663
Issue date
Jul 31, 1990
Hitachi, Ltd.
Tadashi Iizuka
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES