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Fukushima, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method of producing polyarylene sulfide and polyarylene sulfide
Patent number
9,422,402
Issue date
Aug 23, 2016
Kureha Corporation
Kenji Suzuki
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Thermally foamable microsphere and production process thereof
Patent number
7,931,967
Issue date
Apr 26, 2011
Kureha Corporation
Yasuhiro Tasaki
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Thermally foamable microsphere and production process thereof
Patent number
7,252,882
Issue date
Aug 7, 2007
Kureha Corporation
Yoshikatsu Satake
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Thermally foamable microsphere and production process thereof
Patent number
7,232,607
Issue date
Jun 19, 2007
Kureha Corporation
Yoshikatsu Satake
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Expandable microspheres and process for producing the same
Patent number
6,613,810
Issue date
Sep 2, 2003
Kureha Kagaku K.K.
Tetsuo Ejiri
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Process for producing poly(arylene sulfide)
Patent number
5,840,830
Issue date
Nov 24, 1998
Kureha Kagaku Kogyo K.K.
Michihisa Miyahara
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for producing poly(phenylene sulfide)
Patent number
5,744,576
Issue date
Apr 28, 1998
Kureha Kagaku Kogyo K.K.
Michihisa Miyahara
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Poly (arylene sulfide) resin composition
Patent number
5,650,459
Issue date
Jul 22, 1997
Kureha Kagaku Kogyo K.K.
Yoshikatsu Satake
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Poly(arylene thioether-ketone) copolymer and production process the...
Patent number
5,391,646
Issue date
Feb 21, 1995
Kureha Kagaku Kogyo K.K.
Yoshikatsu Satake
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Poly(arylene thioether-ketone) copolymer and production process the...
Patent number
5,391,645
Issue date
Feb 21, 1995
Kureha Kagaku Kogyo K.K.
Yoshikatsu Satake
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Poly(arylene sulfide) resin composition
Patent number
5,380,783
Issue date
Jan 10, 1995
Kureha Kagaku Kogyo K.K.
Yoshikatsu Satake
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Poly(arylene thioether-ketone-ketone) copolymer and production proc...
Patent number
5,378,770
Issue date
Jan 3, 1995
Kureha Kagaku Kogyo K.K.
Yoshikatsu Satake
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
High-heat-resistant, crystalline block copolymers and production pr...
Patent number
5,378,772
Issue date
Jan 3, 1995
Kureha Kagaku Kogyo K.K.
Yoshikatsu Satake
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
High-heat-resistant, crystalline block copolymers and production pr...
Patent number
5,378,771
Issue date
Jan 3, 1995
Kureha Kagaku Kogyo K.K.K.
Yoshikatsu Satake
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Poly (arylene thioether-ketone-ketone) copolymer and production pro...
Patent number
5,374,692
Issue date
Dec 20, 1994
Kureha Kagaku Kogyo K.K.
Yoshikatsu Satake
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Production process of arylene thioether copolymer
Patent number
5,324,814
Issue date
Jun 28, 1994
Kureha Kagaku Kogyo K.K.
Yukichika Kawakami
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Poly(arylene thioether-ketone) copolymer and production process the...
Patent number
5,288,815
Issue date
Feb 22, 1994
Kureha Kagaku Kogyo K.K.
Yoshikatsu Satake
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Heat-resistant stretched film and production process thereof
Patent number
5,286,814
Issue date
Feb 15, 1994
Kureha Kagaku Kogyo K.K.
Toshiya Mizuno
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Resin compositions of high heat resistance
Patent number
5,258,440
Issue date
Nov 2, 1993
Kureha Kagaku Kogyo K.K.
Yoshiyuki Inaguma
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Poly(arylene thioether-ketone-ketone) copolymer and production proc...
Patent number
5,250,636
Issue date
Oct 5, 1993
Kureha Kagaku Kogyo K.K.
Yoshikatsu Satake
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
High-heat-resistant, crystalline block copolymers and production pr...
Patent number
5,248,743
Issue date
Sep 28, 1993
Kureha Kagaku Kogyo K.K.
Yoshikatsu Satake
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Poly(arylene thioether) block copolymer and production process thereof
Patent number
5,153,278
Issue date
Oct 6, 1992
Kureha Kagaku Kogyo K.K.
Yoshikatsu Satake
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Poly(arylene thioether) block copolymer and production process thereof
Patent number
5,153,264
Issue date
Oct 6, 1992
Kureha Kagaku Kogyo K.K.
Yoshikatsu Satake
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Poly(arylene thioether) block copolymer and production process thereof
Patent number
5,153,279
Issue date
Oct 6, 1992
Kureha Kagaku Kogyo K.K.
Yoshikatsu Satake
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Poly(arylene thioether) block copolymer and production process thereof
Patent number
5,120,808
Issue date
Jun 9, 1992
Kureha Kagaku Kogyo K.K.
Yoshikatsu Satake
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Melt-stable poly(arylene thioether-ketone) prepregs and molded or f...
Patent number
5,110,681
Issue date
May 5, 1992
Kureha Kagaku Kogyo K.K.
Yoshikatsu Satake
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Heat-resistant resin compositions, and heat-resistant molded or for...
Patent number
5,085,819
Issue date
Feb 4, 1992
Kureha Kabaku Kogyo K.K.
Yoshikatsu Satake
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Poly(arylene thioether-ketones) improved in melt stability and prep...
Patent number
5,045,630
Issue date
Sep 3, 1991
Kureha Kagaku Kogyo K.K.
Ken Kashiwadate
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Poly(arylene thioether-ketones) improved in melt stability and prep...
Patent number
5,008,370
Issue date
Apr 16, 1991
Kureha Kagaku Kogyo K.K.
Ken Kashiwadate
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Stretched poly(arylene thioether) block copolymer films and product...
Patent number
4,980,114
Issue date
Dec 25, 1990
Kureha Kagaku Kogyo K.K.
Yoshikatsu Satake
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
METHOD OF PRODUCING POLYARYLENE SULFIDE AND POLYARYLENE SULFIDE
Publication number
20160068636
Publication date
Mar 10, 2016
Kureha Corporation
Kenji SUZUKI
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Heat-expandable macrosphere and process for producing the same
Publication number
20030143399
Publication date
Jul 31, 2003
Yoshikatsu Satake
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Thermally foamable microsphere and production process thereof
Publication number
20030114546
Publication date
Jun 19, 2003
Yoshikatsu Satake
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...