Ryozo Kawai

Person

Nagareyama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Laminated body for optical purposes that includes a melanin-contain...
- Patent number 7,872,795
- Issue date Jan 18, 2011
- MGC Filsheet Co., Ltd.
- Ryozo Kawai
- B32 - LAYERED PRODUCTS
Information Patent Grant
Light control plastic lens, coated sheet-like light control element...
- Patent number 7,350,917
- Issue date Apr 1, 2008
- Ryozo Kawai
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Polycarbonate resin composition and polarizing sheet used the same
- Patent number 7,198,830
- Issue date Apr 3, 2007
- Mitsubishi Gas Chemical Company Inc
- Takayasu Fujimori
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Biodegradable water-soluble polymer
- Patent number 5,811,032
- Issue date Sep 22, 1998
- Mitsubishi Gas Chemical Company, Inc.
- Ryozo Kawai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Aliphatic polyester carbonate and process for producing the same
- Patent number 5,654,380
- Issue date Aug 5, 1997
- Mitsubishi Gas Chemical Company, Inc.
- Ryozo Kawai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Anti-dazzling polycarbonate polarizing plate
- Patent number 5,051,309
- Issue date Sep 24, 1991
- Mitsubishi Gas Chemical Co., Inc.
- Takao Kawaki
- G02 - OPTICS
Information Patent Grant
Process for producing a polarizing film
- Patent number 4,992,218
- Issue date Feb 12, 1991
- Mitsubishi Gas Chemical Company, Inc.
- Akitoshi Sugio
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Laminated body for optical purposes that includes a melanin-contain...
- Publication number 20090323179
- Publication date Dec 31, 2009
- MGC FILSHEET CO., LTD.
- Ryozo Kawai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
PROCESS FOR PRODUCING MELANIN, MELANIN PRODUCED BY THE PROCESS, FUN...
- Publication number 20090317616
- Publication date Dec 24, 2009
- Ryozo Kawai
- G02 - OPTICS
Information Patent Application
NON-GLARING LAMINATED BODY, A COATED NON-GLARING LAMINATED BODY, A...
- Publication number 20080094704
- Publication date Apr 24, 2008
- MGC FILSHEET CO., LTD.
- Hideaki KIMURA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Light control plastic lens, coated sheet-like light control element...
- Publication number 20050168690
- Publication date Aug 4, 2005
- FUJI KASEI CO., LTD.
- Ryozo Kawai
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Polycarbonate resin composition and polarizing sheet used the same
- Publication number 20040245511
- Publication date Dec 9, 2004
- MITSUBISHI GAS CHEMICAL COMPANY INC.
- Takayasu Fujimori
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Ryozo Kawai

Person

Patents Grantslast 30 patents

Laminated body for optical purposes that includes a melanin-contain...

Light control plastic lens, coated sheet-like light control element...

Polycarbonate resin composition and polarizing sheet used the same

Biodegradable water-soluble polymer

Aliphatic polyester carbonate and process for producing the same

Anti-dazzling polycarbonate polarizing plate

Process for producing a polarizing film

Patents Applicationslast 30 patents

Laminated body for optical purposes that includes a melanin-contain...

PROCESS FOR PRODUCING MELANIN, MELANIN PRODUCED BY THE PROCESS, FUN...

NON-GLARING LAMINATED BODY, A COATED NON-GLARING LAMINATED BODY, A...

Light control plastic lens, coated sheet-like light control element...

Polycarbonate resin composition and polarizing sheet used the same