Takumi Ishiwaka

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Foamable phenolic resin composition and process for preparation the...
- Patent number 5,137,931
- Issue date Aug 11, 1992
- Asahi Yukizai Kogyo Co., Ltd.
- Syuji Okumura
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing flexible polyurethane foam
- Patent number 5,093,378
- Issue date Mar 3, 1992
- Bridgestone Corporation
- Takumi Ishiwaka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for producing phenol resin foams and method of making foamed...
- Patent number 5,008,297
- Issue date Apr 16, 1991
- Bridgestone Corporation
- Akihiro Maruyama
- B32 - LAYERED PRODUCTS
Information Patent Grant
Platen roll
- Patent number 4,887,923
- Issue date Dec 19, 1989
- Bridgestone Corporation
- Takumi Ishiwaka
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Roll for use in business machine
- Patent number 4,707,408
- Issue date Nov 17, 1987
- Bridgestone Corporation
- Shigeru Iwasawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Microcellular polyurethane elastomer and manufacturing method of th...
- Patent number 4,647,596
- Issue date Mar 3, 1987
- Bridgestone Corporation
- Seiji Ishii
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing flame-resistant foam resins
- Patent number 4,258,139
- Issue date Mar 24, 1981
- Bridgestone Tire Company Limited
- Toshio Yukuta
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method of producing polyurea foams
- Patent number 4,234,695
- Issue date Nov 18, 1980
- Bridgestone Tire Co., Ltd.
- Toshio Yukuta
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Flame resistant polyurethane foam and the method for manufacturing...
- Patent number 4,221,875
- Issue date Sep 9, 1980
- Bridgestone Tire Co., Ltd.
- Toshio Yukuta
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Takumi Ishiwaka

Person

Patents Grantslast 30 patents

Foamable phenolic resin composition and process for preparation the...

Process for producing flexible polyurethane foam

Method for producing phenol resin foams and method of making foamed...

Platen roll

Roll for use in business machine

Microcellular polyurethane elastomer and manufacturing method of th...

Process for producing flame-resistant foam resins

Method of producing polyurea foams

Flame resistant polyurethane foam and the method for manufacturing...