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Masao Sakashita
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Kawasaki, JP
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last 30 patents
Information
Patent Grant
Method of removing scales and preventing scale formation on metal m...
Patent number
6,582,586
Issue date
Jun 24, 2003
Nippon Steel Corporation
Tooru Akashi
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Surface-treated metal plate and metal surface treating fluid
Patent number
6,200,672
Issue date
Mar 13, 2001
Nippon Steel Corporation
Kenichiro Tadokoro
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Surface treated metal material and surface treating agent
Patent number
6,190,780
Issue date
Feb 20, 2001
Nippon Steel Corporation
Hiromasa Shoji
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Organic polymer separation membrane having fluorene skeleton and ox...
Patent number
5,116,504
Issue date
May 26, 1992
Nippon Steel Corporation
Masao Sakashita
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polysulfone separation membrane
Patent number
5,049,169
Issue date
Sep 17, 1991
Nippon Steel Corporation
Takerou Teramoto
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Organic polymer separation membrane having fluorene skeleton and ox...
Patent number
4,975,190
Issue date
Dec 4, 1990
Nippon Steel Corporation
Masao Sakashita
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Organic polymer separation membrane having fluorene skeleton and ox...
Patent number
4,968,331
Issue date
Nov 6, 1990
Nippon Steel Corporation
Masao Sakashita
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method of producing polydiacetylene thin film
Patent number
4,906,550
Issue date
Mar 6, 1990
Nippon Steel Corporation
Kengo Shimanoe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY