Koji Hirai

Person

Kurashiki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Thermoplastic polyurethanes and molded articles comprising them
- Patent number 5,912,193
- Issue date Jun 15, 1999
- Kuraray Co., Ltd.
- Shizuo Iwata
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Laminate comprising a polyurethane layer
- Patent number 5,821,180
- Issue date Oct 13, 1998
- Kuraray Co., Ltd.
- Shizuo Iwata
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Thermoplastic polyurethanes and molded articles comprising them
- Patent number 5,780,573
- Issue date Jul 14, 1998
- Kuraray Co., Ltd.
- Shizuo Iwata
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Thermoplastic polyurethane composition
- Patent number 5,688,890
- Issue date Nov 18, 1997
- Kuraray Co., Ltd.
- Michihiro Ishiguro
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Polyurethane and molded article comprising the same
- Patent number 5,606,005
- Issue date Feb 25, 1997
- Kuraray Co., Ltd.
- Tatuya Oshita
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polyamide copolymers
- Patent number 5,310,827
- Issue date May 10, 1994
- Kuraray Co., Ltd.
- Yukiatsu Komiya
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Elastic polyurethane fiber
- Patent number 5,310,852
- Issue date May 10, 1994
- Kuraray Co., Ltd.
- Koji Hirai
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Polyurethane, elastic polyurethane fiber and polyesterpolycarbonate...
- Patent number 5,290,905
- Issue date Mar 1, 1994
- Kuraray Co., Ltd.
- Yukiatsu Komiya
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Polyester urethane fiber: polyester made from methyl pentane diol
- Patent number 5,118,780
- Issue date Jun 2, 1992
- Kuraray Co., Ltd.
- Koji Hirai
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Polyamide copolymers
- Patent number 5,093,437
- Issue date Mar 3, 1992
- Kuraray Co., Ltd.
- Yukiatsu Komiya
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyurethane, process for its production and polyester diol used fo...
- Patent number 5,077,373
- Issue date Dec 31, 1991
- Kuraray Co., Ltd.
- Tomoyasu Tsuda
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing polyurethane
- Patent number 5,070,172
- Issue date Dec 3, 1991
- Kuraray Co., Ltd.
- Koji Hirai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Trimethylolheptanes and use thereof
- Patent number 4,935,488
- Issue date Jun 19, 1990
- Kurary Company, Ltd.
- Toshihiro Omatsu
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polyamideimide elastomer and production thereof
- Patent number 4,816,544
- Issue date Mar 28, 1989
- Kuraray Co., Ltd.
- Yukiatsu Komiya
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyurethane compositions
- Patent number 4,704,445
- Issue date Nov 3, 1987
- Kuraray Co., Ltd.
- Yukiatsu Komiya
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing polyester polyurethane
- Patent number 4,639,471
- Issue date Jan 27, 1987
- Kuraray Co., Ltd.
- Koji Hirai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for production of polyurethane
- Patent number 4,551,518
- Issue date Nov 5, 1985
- Kuraray Co., Ltd.
- Mitsuo Matsumoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyurethane coating compositions prepared from a polymeric diol, a...
- Patent number 4,412,022
- Issue date Oct 25, 1983
- Kuraray Co., Ltd.
- Koji Hirai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyurethane composition having good light resistance
- Patent number 4,367,307
- Issue date Jan 4, 1983
- Kuraray Company, Limited
- Koji Hirai
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...

Person

Patents Grantslast 30 patents

Thermoplastic polyurethanes and molded articles comprising them

Laminate comprising a polyurethane layer

Thermoplastic polyurethanes and molded articles comprising them

Thermoplastic polyurethane composition

Polyurethane and molded article comprising the same

Polyamide copolymers

Elastic polyurethane fiber

Polyurethane, elastic polyurethane fiber and polyesterpolycarbonate...

Polyester urethane fiber: polyester made from methyl pentane diol

Polyamide copolymers

Polyurethane, process for its production and polyester diol used fo...

Process for producing polyurethane

Trimethylolheptanes and use thereof

Polyamideimide elastomer and production thereof

Polyurethane compositions

Process for producing polyester polyurethane

Process for production of polyurethane

Polyurethane coating compositions prepared from a polymeric diol, a...

Polyurethane composition having good light resistance