Shigeru Sawayama

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
N-vinylformamide compositions
- Patent number 5,554,792
- Issue date Sep 10, 1996
- Mitsubishi Kasei Corporation
- Shigeru Sawayama
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Lactam ring containing polymer
- Patent number 5,512,645
- Issue date Apr 30, 1996
- Mitsubishi Chemical Corporation
- Shigeru Sawayama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Acrylic fiber and process for producing the same
- Patent number 5,494,746
- Issue date Feb 27, 1996
- Mitsubishi Kasei Corporation
- Mitsuaki Shiraga
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Vinylamine copolymer, flocculating agent and paper strength increas...
- Patent number RE34903
- Issue date Apr 11, 1995
- Mitsubishi Kasei Corporation
- Takaharu Itagaki
- 525 - Synthetic resins or natural rubbers
Information Patent Grant
Paper-making additives comprising cationic polymers
- Patent number 5,389,203
- Issue date Feb 14, 1995
- Mitsubishi Kasei Corporation
- Shigeru Sawayama
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Vinylamine copolymer flocculating agent etc.
- Patent number RE34713
- Issue date Aug 30, 1994
- Mitsubishi Kasei Corporation
- Takaharu Itagaki
- 525 - Synthetic resins or natural rubbers
Information Patent Grant
Method for sizing of paper
- Patent number 5,320,712
- Issue date Jun 14, 1994
- Mitsubishi Kasei Corporation
- Shigeru Sawayama
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Cationic polymer flocculating agents
- Patent number 5,281,340
- Issue date Jan 25, 1994
- Mitsubishi Kasei Corporation
- Shin-ichi Sato
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Vinylamine copolymer, flocculating agent and paper strength increas...
- Patent number 5,064,909
- Issue date Nov 12, 1991
- Mitsubishi Kasei Corporation
- Takaharu Itagaki
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Vinylamine copolymer and process for producing same
- Patent number 5,037,927
- Issue date Aug 6, 1991
- Mitsubishi Chemical Industries, Ltd.
- Takaharu Itagaki
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Vinylamine copolymer, flocculating agent etc.
- Patent number 4,957,977
- Issue date Sep 18, 1990
- Mitsubishi Kasei Corporation
- Takaharu Itagaki
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for preparing water-soluble polymer
- Patent number 4,824,913
- Issue date Apr 25, 1989
- Mitsubishi Chemical Industries Limited
- Yoshikazu Murao
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Vinylamine copolymer, flocculating agent using the same, and proces...
- Patent number 4,808,683
- Issue date Feb 28, 1989
- Mitsubishi Chemical Industries Limited
- Takaharu Itagaki
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Coagulant for minute mineral particles in suspension and method for...
- Patent number 4,783,270
- Issue date Nov 8, 1988
- Mitsubishi Chemical Industries Limited
- Yoshikazu Murao
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Process for producing N-substituted formamides
- Patent number 4,567,300
- Issue date Jan 28, 1986
- Mitsubishi Chemical Industries Limited
- Yoshikazu Murao
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing bead polymers
- Patent number 4,158,726
- Issue date Jun 19, 1979
- Mitsubishi Chemical Industries Ltd.
- Osamu Kamada
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Shigeru Sawayama

Person

Patents Grantslast 30 patents

N-vinylformamide compositions

Lactam ring containing polymer

Acrylic fiber and process for producing the same

Vinylamine copolymer, flocculating agent and paper strength increas...

Paper-making additives comprising cationic polymers

Vinylamine copolymer flocculating agent etc.

Method for sizing of paper

Cationic polymer flocculating agents

Vinylamine copolymer, flocculating agent and paper strength increas...

Vinylamine copolymer and process for producing same

Vinylamine copolymer, flocculating agent etc.

Process for preparing water-soluble polymer

Vinylamine copolymer, flocculating agent using the same, and proces...

Coagulant for minute mineral particles in suspension and method for...

Process for producing N-substituted formamides

Process for preparing bead polymers