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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Process for preparing polyolefins
Patent number
6,486,275
Issue date
Nov 26, 2002
Nippon Mitsubishi Oil Corporation
Akira Sano
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Catalyst containing novel transition metal compound for polymerizat...
Patent number
6,352,953
Issue date
Mar 5, 2002
Japan Polyolefins Co., Ltd.
Takashi Seki
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Transition metal compound and catalyst containing the same for poly...
Patent number
6,150,544
Issue date
Nov 21, 2000
Japan Polyolefins Co., Ltd.
Takashi Seki
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of olefinic polymers
Patent number
6,111,040
Issue date
Aug 29, 2000
Nippon Mitsubishi Oil Corporation
Hiroyuki Shimizu
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Olefin polymerization catalyst and process for preparing polyolefins
Patent number
6,077,804
Issue date
Jun 20, 2000
Nippon Oil Company, Limited
Yoshio Tajima
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for preparing polyolefins
Patent number
6,034,188
Issue date
Mar 7, 2000
Nippon Oil Company, Limited
Akira Sano
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the production of polyolefins
Patent number
5,916,982
Issue date
Jun 29, 1999
Nippon Oil Co., Ltd.
Osamu Nakazawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for preparing polyolefins
Patent number
5,804,679
Issue date
Sep 8, 1998
Nippon Oil Company, Limited
Akira Sano
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Olefin polymerization catalyst and polyolefin
Patent number
5,780,562
Issue date
Jul 14, 1998
Nippon Oil Co., Ltd.
Hiroyuki Shimizu
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Catalyst composition and process for the production of olefinic pol...
Patent number
5,750,454
Issue date
May 12, 1998
Nippon Oil Co., Ltd.
Hiroyuki Shimizu
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for preparing polyolefins
Patent number
5,644,008
Issue date
Jul 1, 1997
Nippon Oil Company, Limited
Akira Sano
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Solid catalyst components for olefin polemerization and use thereof
Patent number
5,604,170
Issue date
Feb 18, 1997
Nippon Oil Company, Limited
Akira Sano
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for operating reactor for polymerizing olefins
Patent number
5,543,478
Issue date
Aug 6, 1996
Nippon Petrochemicals Company, Limited
Masahiro Niwa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for preparing polyolefins
Patent number
5,541,271
Issue date
Jul 30, 1996
Nippon Oil Company, Limited
Akira Sano
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Catalyst for preparing polyolefins
Patent number
5,506,183
Issue date
Apr 9, 1996
Nippon Oil Company, Limited
Akira Sano
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for preparing polyolefins
Patent number
5,463,001
Issue date
Oct 31, 1995
Nippon Oil Company, Limited
Akira Sano
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for preparing polyolefins
Patent number
5,432,236
Issue date
Jul 11, 1995
Nippon Oil Company, Limited
Akira Sano
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for preparing polyolefins
Patent number
5,369,193
Issue date
Nov 29, 1994
Nippon Oil Company, Limited
Akira Sano
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the production of polyethylene materials
Patent number
5,026,511
Issue date
Jun 25, 1991
Nippon Oil Co., Ltd.
Akira Sano
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Process for producing highly oriented polyethylene material
Patent number
5,002,714
Issue date
Mar 26, 1991
Nippon Oil Co., Ltd.
Akira Sano
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Production of polyethylene materials having improved strength and m...
Patent number
4,996,011
Issue date
Feb 26, 1991
Nippon Oil Co., Ltd.
Akira Sano
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Process for producing polyethylene of ultrahigh molecular weight
Patent number
4,923,935
Issue date
May 8, 1990
Nippon Oil Co., Ltd.
Akira Sano
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyethylene resin composition
Patent number
4,910,257
Issue date
Mar 20, 1990
Nippon Oil Company, Limited
Akira Sano
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Fluorinated ethylene/alpha-olefin copolymers
Patent number
4,904,743
Issue date
Feb 27, 1990
Nippon Oil Company, Limited
Akira Sano
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyethylene resin composition
Patent number
4,900,790
Issue date
Feb 13, 1990
Nippon Oil Company, Limited
Akira Sano
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the production of polyethylene materials
Patent number
4,879,076
Issue date
Nov 7, 1989
Nippon Oil Co., Ltd.
Akira Sano
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Catalysts for polymerization of olefins
Patent number
4,849,390
Issue date
Jul 18, 1989
Nippon Oil Co., Ltd.
Akira Sano
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Molding composition
Patent number
4,786,687
Issue date
Nov 22, 1988
Nippon Oil Co., Ltd.
Akira Sano
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Ultra-high-molecular-weight polyethylene solution
Patent number
4,767,819
Issue date
Aug 30, 1988
Nippon Petrochemicals Co., Ltd.
Shigeki Yokoyama
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Easily soluble polyethylene powder for the preparation of fibers or...
Patent number
4,760,120
Issue date
Jul 26, 1988
Nippon Oil Company, Limited
Akira Sano
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
Information
Patent Application
Process for preparing polyolefins
Publication number
20020013434
Publication date
Jan 31, 2002
Akira Sano
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...