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Niihama, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Fine α-alumina particle
Patent number
8,021,451
Issue date
Sep 20, 2011
Sumitomo Chemical Company, Limited
Hajime Maki
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Method for producing alpha-alumina particle
Patent number
7,858,067
Issue date
Dec 28, 2010
Sumitomo Chemical Company, Limited
Hajime Maki
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for producing an alpha alumina particle
Patent number
7,758,845
Issue date
Jul 20, 2010
Sumitomo Chemical Company, Limited
Kazuhisa Kajihara
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Method for producing an α-alumina power
Patent number
7,691,362
Issue date
Apr 6, 2010
Sumitomo Chemical Company, Limited
Hajime Maki
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Process for producing fine α-alumina particles
Patent number
7,674,525
Issue date
Mar 9, 2010
Sumitomo Chemical Company, Limited
Hajime Maki
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Coating composition and method for producing the same
Patent number
7,510,607
Issue date
Mar 31, 2009
Sumitomo Chemical Company, Limited
Kazuhisa Kajihara
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for producing α-alumina powder
Patent number
7,351,394
Issue date
Apr 1, 2008
Sumitomo Chemical Company, Limited
Hajime Maki
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Method for producing α-alumina particulate
Patent number
7,307,033
Issue date
Dec 11, 2007
Sumitomo Chemical Company, Limited
Hajime Maki
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Method for producing α-alumina powder
Patent number
7,078,010
Issue date
Jul 18, 2006
Sumitomo Chemical Company, Limited
Hajime Maki
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Method for producing an inorganic oxide powder
Patent number
6,936,236
Issue date
Aug 30, 2005
Sumitomo Chemical Company, Limited
Koji Yamamoto
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Titanium oxide, photocatalyst comprising same and photocatalytic co...
Patent number
6,627,579
Issue date
Sep 30, 2003
Sumitomo Chemical Company, Limited
Yoshiaki Sakatani
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Acid resistant catalyst sheet and process for producing same
Patent number
6,495,489
Issue date
Dec 17, 2002
Sumitomo Chemical Company, Limited
Yasuyuki Oki
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Heat resistant catalyst sheet and process for producing same
Patent number
6,465,389
Issue date
Oct 15, 2002
Sumitomo Chemical Company, Limited
Yasuyuki Oki
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Porous titania, catalyst comprising the porous titania
Patent number
6,444,608
Issue date
Sep 3, 2002
Sumitomo Chemical Company, Limited
Yasuyuki Oki
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Boehmite and base coat layer for magnetic recording medium
Patent number
6,440,552
Issue date
Aug 27, 2002
Sumitomo Chemical Company, Limited
Kazuhisa Kajihara
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Titania fiber, method for producing the fiber and method for using...
Patent number
6,409,961
Issue date
Jun 25, 2002
Sumitomo Chemical Co., Ltd.
Hironobu Koike
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Porous titania, catalyst comprising the porous titania
Patent number
6,399,540
Issue date
Jun 4, 2002
Sumitomo Chemical Co., Ltd.
Yasuyuki Oki
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Titania fiber, method for producing the fiber and method for using...
Patent number
6,191,067
Issue date
Feb 20, 2001
Sumitomo Chemical, Ltd.
Hironobu Koike
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for producing a catalyst component-carrying titania fiber
Patent number
6,162,759
Issue date
Dec 19, 2000
Sumitomo Chemical Company, Ltd.
Yasuyuki Oki
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Titania fiber, method for producing the fiber and method for using...
Patent number
6,086,844
Issue date
Jul 11, 2000
Sumitomo Chemical Company, Ltd.
Hironobu Koike
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Abrasive composition and use of the same
Patent number
5,804,513
Issue date
Sep 8, 1998
Sumitomo Chemical Company, Ltd.
Yoshiaki Sakatani
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Abrasive particle, method for producing the same, and method of use...
Patent number
5,697,992
Issue date
Dec 16, 1997
Sumitomo Chemical Company, Limited
Kazumasa Ueda
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Magnetic recording medium
Patent number
5,616,410
Issue date
Apr 1, 1997
Sumitomo Chemical Company, Limited
Hiroshi Umezaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Process for preparing fine-particulate metal hydroxide comprising a...
Patent number
5,573,582
Issue date
Nov 12, 1996
Sumitomo Chemical Co., Ltd.
Masamichi Inui
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Continuous process for preparing aluminum hydroxide
Patent number
5,455,019
Issue date
Oct 3, 1995
Sumitomo Chemical Company, Limited
Masamichi Inui
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
.theta.-alumina powder, preparation thereof and magnetic recording...
Patent number
5,348,920
Issue date
Sep 20, 1994
Sumitomo Chemical Company, Limited
Shoji Sugimoto
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Magnetic recording medium
Patent number
5,141,807
Issue date
Aug 25, 1992
Sumitomo Chemical Company, Limited
Hiroshi Umezaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Polishing composition for metallic material
Patent number
5,114,437
Issue date
May 19, 1992
Sumitomo Chemical Co., Ltd.
Yoshiaki Takeuchi
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR PRODUCING AN ALPHA-ALUMINA POWDER
Publication number
20090123363
Publication date
May 14, 2009
Sumitomo Chemical Company, Limited
Shinobu Maruno
B82 - NANO-TECHNOLOGY
Information
Patent Application
Fine a-alumina particle
Publication number
20070021292
Publication date
Jan 25, 2007
SUMITOMO CHEMICAL, CO., LTD.
Hajime Maki
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Process for producing fine alpha-alumina particles
Publication number
20060210799
Publication date
Sep 21, 2006
Sumitomo Chemical Company, Limited
Hajime Maki
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Method for producing an alpha-alumina powder
Publication number
20060073093
Publication date
Apr 6, 2006
Sumitomo Chemical Company, Limited
Hajime Maki
B82 - NANO-TECHNOLOGY
Information
Patent Application
Method for producing an alpha - alumina powder
Publication number
20050276745
Publication date
Dec 15, 2005
Sumitomo Chemical Company, Limited
Hajime Maki
B82 - NANO-TECHNOLOGY
Information
Patent Application
Method for producing an alpha-alumina powder
Publication number
20050214201
Publication date
Sep 29, 2005
Sumitomo Chemical Company, Limited
Shinobu Maruno
B82 - NANO-TECHNOLOGY
Information
Patent Application
Method for producing an alpha alumina particle
Publication number
20050204513
Publication date
Sep 22, 2005
Sumitomo Chemical Company, Limited
Kazuhisa Kajihara
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Method for producing alpha-alumina particle
Publication number
20050201928
Publication date
Sep 15, 2005
Sumitomo Chemical Company, Limited
Hajime Maki
C01 - INORGANIC CHEMISTRY
Information
Patent Application
Coating composition and method for producing the same
Publication number
20050019557
Publication date
Jan 27, 2005
Sumitomo Chemical Company, Limited
Kazuhisa Kajihara
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Method for producing alpha-alumina powder
Publication number
20050008565
Publication date
Jan 13, 2005
Sumitomo Chemical Company, Limited
Hajime Maki
B82 - NANO-TECHNOLOGY
Information
Patent Application
Method for producing alpha-alumina particulate
Publication number
20040186005
Publication date
Sep 23, 2004
Sumitomo Chemical Company, Limited
Hajime Maki
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Method for producing alpha -alumina powder
Publication number
20040184984
Publication date
Sep 23, 2004
Sumitomo Chemical Company, Limited
Hajime Maki
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Alpha-alumina powder and method of producing the same
Publication number
20040131856
Publication date
Jul 8, 2004
Sumitomo Chemical Company, Limited
Kazuhisa Kajihara
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Calcined alumina, its production method and fine alpha-alumina powd...
Publication number
20030185746
Publication date
Oct 2, 2003
Sumitomo Chemical Company, Limited
Kazuhisa Kajihara
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Porous titania, catalyst comprising the porous titania
Publication number
20020045545
Publication date
Apr 18, 2002
Sumitomo Chemical Company, Limited
Yasuyuki Oki
B82 - NANO-TECHNOLOGY
Information
Patent Application
Method for producing an inorganic oxide powder
Publication number
20010036438
Publication date
Nov 1, 2001
Koji Yamamoto
C01 - INORGANIC CHEMISTRY