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Patents Grants
last 30 patents
Information
Patent Grant
Electrically conductive polyimide compositions having a carbon nano...
Patent number
7,273,661
Issue date
Sep 25, 2007
DuPont Toray Co., Ltd.
Hideki Moriyama
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Laminate type materials for flexible circuits or similar-type assem...
Patent number
6,916,544
Issue date
Jul 12, 2005
E. I. Du Pont de Nemours and Company
Hideki Moriyama
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyimide film, method of manufacture, and metal interconnect board...
Patent number
6,908,685
Issue date
Jun 21, 2005
E. I. Du Pont de Nemours and Company
Kenji Uhara
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method and device for producing open type polymide moldings, and ba...
Patent number
6,835,348
Issue date
Dec 28, 2004
Mogami Denki Corporation
Haruhiko Hirosue
F21 - LIGHTING
Information
Patent Grant
Spandex having low set at low temperatures
Patent number
6,639,041
Issue date
Oct 28, 2003
DuPont Toray Co. Ltd.
Hiroshi Nishikawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Coalesced multifilament spandex and method for its preparation
Patent number
6,623,585
Issue date
Sep 23, 2003
DuPont-Toray Co. Ltd.
Masao Umezawa
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Process for winding elastomeric fiber package
Patent number
6,572,050
Issue date
Jun 3, 2003
Dupont-Toray Co. Ltd.
Tatsuyuki Okada
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Polyimide film, method of manufacture, and metal interconnect board...
Patent number
6,555,238
Issue date
Apr 29, 2003
DuPont Toray Co. Ltd.
Kenji Uhara
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyimide film, method of manufacture, and metal interconnect board...
Patent number
6,548,179
Issue date
Apr 15, 2003
DuPont-Toray Co., Ltd.
Kenji Uhara
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Reflector substrate for illumination device and reflector for illum...
Patent number
6,492,031
Issue date
Dec 10, 2002
DuPont Toray Co. Ltd.
Hideki Moriyama
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the manufacture of spandex and the spandex made thereby
Patent number
6,403,712
Issue date
Jun 11, 2002
DuPont Toray Co. Ltd.
Shingo Ito
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Process for making melt-spun spandex
Patent number
6,399,003
Issue date
Jun 4, 2002
DuPont Toray Co. Ltd.
Masao Umezawa
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Polyurethane fiber containing poly(vinylidene fluoride)
Patent number
6,376,071
Issue date
Apr 23, 2002
DuPont Toray Co. Ltd.
Toshihiro Tanaka
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Stabilized spandex
Patent number
6,372,834
Issue date
Apr 16, 2002
DuPont Toray Co. Ltd.
Yuji Uemura
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyparaphenylene terephthalamide fiber and method for producing th...
Patent number
6,348,263
Issue date
Feb 19, 2002
DuPont-Toray Co., Ltd.
Takeshi Hatano
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Stable double covered elastic yarn, process for making same, and fa...
Patent number
6,240,716
Issue date
Jun 5, 2001
DuPont Toray Company, Ltd.
Takeshi Yanagawase
D02 - YARNS MECHANICAL FINISHING OF YARNS OR ROPES WARPING OR BEAMING
Information
Patent Grant
Stable polyurethaneurea solutions
Patent number
6,225,435
Issue date
May 1, 2001
DuPont Toray Co. Ltd.
Shingo Ito
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Coalesced multifilament spandex and method for its preparation
Patent number
6,214,145
Issue date
Apr 10, 2001
DuPont Toray Co., Ltd.
Masao Umezawa
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Elastic yarn winder and method for using same
Patent number
6,196,490
Issue date
Mar 6, 2001
DuPont Toray Co. Ltd.
Ryoji Gotoh
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Method for heat-setting spandex-containing garments
Patent number
6,174,486
Issue date
Jan 16, 2001
DuPont Toray Co. Ltd.
Tateo Jin-Ya
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Process of making polyurethane fiber
Patent number
6,096,252
Issue date
Aug 1, 2000
DuPont-Toray Co., Ltd.
Masao Umezawa
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Durable polyurethane fiber and method for the manufacture thereof
Patent number
5,962,130
Issue date
Oct 5, 1999
DuPont-Toray Co., Ltd.
Masao Umezawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyimide copolymer, polyimide copolymer resin molded products and...
Patent number
5,859,171
Issue date
Jan 12, 1999
DuPont Toray
Kouichi Sawasaki
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Durable polyurethane fiber and method for the manufacture thereof
Patent number
5,800,920
Issue date
Sep 1, 1998
Dupont Toray
Masao Umezawa
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING