Katsuyoshi Sasagawa

Person

Chiba, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Composition for optical materials and use thereof
- Patent number 5,756,766
- Issue date May 26, 1998
- Mitsui Toatsu Chemicals, Inc.
- Nobuya Kawauchi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Plastic lenses having a high-refractive index, process for the prep...
- Patent number 5,753,730
- Issue date May 19, 1998
- Mitsui Toatsu Chemicals, Inc.
- Teruyuki Nagata
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Composition for urethane-base plastic lens, urethane-base plastic l...
- Patent number 5,693,738
- Issue date Dec 2, 1997
- Mitsui Toatsu Chemicals, Inc.
- Koju Okazaki
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Composition for optical materials and use thereof
- Patent number 5,652,321
- Issue date Jul 29, 1997
- Mitsui Toatsu Chemicals, Inc.
- Nobuya Kawauchi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Plastic lenses having a high-refractive index, process for the prep...
- Patent number 5,594,088
- Issue date Jan 14, 1997
- Mitsui Toatsu Chemicals, Inc.
- Teruyuki Nagata
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
High-speed polymerizable resin composition and lenses obtained ther...
- Patent number 5,578,658
- Issue date Nov 26, 1996
- Mitsui Toatsu Chemicals, Inc.
- Katsuyoshi Sasagawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polymerizable monomer useful for the preparation of high hardness t...
- Patent number 5,451,695
- Issue date Sep 19, 1995
- Mitsui Toatsu Chemicals, Inc.
- Noboru Kawasaki
- B32 - LAYERED PRODUCTS
Information Patent Grant
Optical lens comprised of high surface hardness transparent resin
- Patent number 5,440,358
- Issue date Aug 8, 1995
- Mitsui Toatsu Chemicals, Inc.
- Toshiyuki Suzuki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Laminated transparent plastic material and polymerizable monomer
- Patent number 5,393,607
- Issue date Feb 28, 1995
- Mitsui Toatsu Chemiclas, Inc.
- Noboru Kawasaki
- B32 - LAYERED PRODUCTS
Information Patent Grant
Casting epoxy resin, polythiol and releasing agent to form lens
- Patent number 5,374,668
- Issue date Dec 20, 1994
- Mitsui Toatsu Chemicals, Inc.
- Yoshinobu Kanemura
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Mercapto compound, its preparation process, and sulfur-containing u...
- Patent number 5,352,758
- Issue date Oct 4, 1994
- Mitsui Toatsu Chemicals, Incorporated
- Yoshinobu Kanemura
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Alicyclic diamines, alicyclic diisocyanates and polyisocyanato-isoc...
- Patent number 5,336,749
- Issue date Aug 9, 1994
- Mitsui Toatsu Chemicals, Incorporated
- Ryuji Haseyama
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
High refractive index plastic lens and composition therefor
- Patent number 5,306,799
- Issue date Apr 26, 1994
- Mitsui Toatsu Chemicals, Inc.
- Seiichi Kobayashi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Mercapto compound, its preparation process, and sulfur-containing u...
- Patent number 5,283,312
- Issue date Feb 1, 1994
- Mitsui Toatsu Chemicals, Inc.
- Yoshinobu Kanemura
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polymerizable monomer having at least one isopropenyl phenyl group...
- Patent number 5,260,439
- Issue date Nov 9, 1993
- Mitsui Toatsu Chemicals, Incorporated
- Toshiyuki Suzuki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
High surface hardness transparent resin and polymerizable monomer
- Patent number 5,250,723
- Issue date Oct 5, 1993
- Mitsui Toatsu Chemicals, Inc.
- Toshiyuki Suzuki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Alicyclic diamines, alicyclic diisocyanates and polyisocyanato-isoc...
- Patent number 5,210,286
- Issue date May 11, 1993
- Mitsui Toatsu Chemicals, Inc.
- Ryuji Haseyama
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Mercapto compound, a high refractive index resin and lens and a pro...
- Patent number 5,191,055
- Issue date Mar 2, 1993
- Mitsui Toatsu Chemicals, Inc.
- Yoshinobu Kanemura
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Aromatic polyisocyanate
- Patent number 5,171,468
- Issue date Dec 15, 1992
- Mitsui Toatsu Chemicals, Incorporated
- Kiyoshi Shikai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hard transparent resins and process for the production thereof
- Patent number 5,166,285
- Issue date Nov 24, 1992
- Mitsui Toatsu Chemicals, Inc.
- Katsuyoshi Sasagawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
High surface hardness transparent resin prepared from a compound ha...
- Patent number 5,145,927
- Issue date Sep 8, 1992
- Mitsui Toatsu Chemicals, Inc.
- Toshiyuki Suzuki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Low-hygroscopic sulfur-containing urethane resin, coating material...
- Patent number 5,126,425
- Issue date Jun 30, 1992
- Mitsui Toatsu Chemicals, Inc.
- Katsuyoshi Sasagawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Alicyclic diamines, alicyclic diisocyanates and polyisocyanato-isoc...
- Patent number 5,126,426
- Issue date Jun 30, 1992
- Mitsui Toatsu Chemicals, Incorporated
- Ryuji Haseyama
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Highly-refractive plastic lens and process for making the lens
- Patent number 5,126,388
- Issue date Jun 30, 1992
- Mitsui Toatsu Chemicals, Inc.
- Teruyuki Nagata
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyisocyanatoalkylphenyl-isocyanurates, method for the preparation...
- Patent number 5,124,429
- Issue date Jun 23, 1992
- Mitsui Toatsu Chemicals, Inc.
- Ryuji Haseyama
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hard transparent resins and process for the production thereof
- Patent number 5,104,953
- Issue date Apr 14, 1992
- Mitsui Toatsu Chemicals, Inc.
- Katsuyoshi Sasagawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyisocyanatoalkylphenyl-isocyanurates, method for the preparation...
- Patent number 5,091,496
- Issue date Feb 25, 1992
- Mitsui Toatsu Chemicals, Inc.
- Ryuji Haseyama
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Mercapto compound, a high refractive index resin and lens and a pro...
- Patent number 5,087,758
- Issue date Feb 11, 1992
- Mitsui Toatsu Chemicals, Inc.
- Yoshinobu Kanemura
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
High surface hardness transparent resin prepared from a compound ha...
- Patent number 5,084,538
- Issue date Jan 28, 1992
- Mitsui Toatsu Chemicals, Inc.
- Toshiyuki Suzuki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Resin for urethane lenses, lenses comprising the resin, and a proce...
- Patent number 5,059,673
- Issue date Oct 22, 1991
- Mitsui Toatsu Chemicals, Inc.
- Yoshinobu Kanemura
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Methacrylic resin and use thereof
- Publication number 20030181612
- Publication date Sep 25, 2003
- Noboru Kawasaki
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Katsuyoshi Sasagawa

Person

Patents Grantslast 30 patents

Composition for optical materials and use thereof

Plastic lenses having a high-refractive index, process for the prep...

Composition for urethane-base plastic lens, urethane-base plastic l...

Composition for optical materials and use thereof

Plastic lenses having a high-refractive index, process for the prep...

High-speed polymerizable resin composition and lenses obtained ther...

Polymerizable monomer useful for the preparation of high hardness t...

Optical lens comprised of high surface hardness transparent resin

Laminated transparent plastic material and polymerizable monomer

Casting epoxy resin, polythiol and releasing agent to form lens

Mercapto compound, its preparation process, and sulfur-containing u...

Alicyclic diamines, alicyclic diisocyanates and polyisocyanato-isoc...

High refractive index plastic lens and composition therefor

Mercapto compound, its preparation process, and sulfur-containing u...

Polymerizable monomer having at least one isopropenyl phenyl group...

High surface hardness transparent resin and polymerizable monomer

Alicyclic diamines, alicyclic diisocyanates and polyisocyanato-isoc...

Mercapto compound, a high refractive index resin and lens and a pro...

Aromatic polyisocyanate

Hard transparent resins and process for the production thereof

High surface hardness transparent resin prepared from a compound ha...

Low-hygroscopic sulfur-containing urethane resin, coating material...

Alicyclic diamines, alicyclic diisocyanates and polyisocyanato-isoc...

Highly-refractive plastic lens and process for making the lens

Polyisocyanatoalkylphenyl-isocyanurates, method for the preparation...

Hard transparent resins and process for the production thereof

Polyisocyanatoalkylphenyl-isocyanurates, method for the preparation...

Mercapto compound, a high refractive index resin and lens and a pro...

High surface hardness transparent resin prepared from a compound ha...

Resin for urethane lenses, lenses comprising the resin, and a proce...

Patents Applicationslast 30 patents

Methacrylic resin and use thereof