Tatsutoshi Nakajima

Person

Kasugai, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Process for producing contact lens with hydrophilic surface and con...
- Patent number 6,018,001
- Issue date Jan 25, 2000
- Menicon Co., Ltd
- Haruyuki Hiratani
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for treating the surface of an oxygen permeable hard contact...
- Patent number 5,118,537
- Issue date Jun 2, 1992
- Menicon Co., Ltd.
- Akihisa Sugiyama
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method for treating the surface of an oxygen permeable hard contact...
- Patent number 4,980,208
- Issue date Dec 25, 1990
- Menicon Company, Ltd.
- Akihisa Sugiyama
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
High water-absorptive soft contact lens
- Patent number 4,829,126
- Issue date May 9, 1989
- Toyo Contact Lens Co., Ltd.
- Tatsutoshi Nakajima
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Contact lens and process for preparing the same
- Patent number 4,451,629
- Issue date May 29, 1984
- Toyo Contact Lens Co., Ltd.
- Kyoichi Tanaka
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Copolymer for soft contact lens, its preparation and soft contact l...
- Patent number 4,139,513
- Issue date Feb 13, 1979
- Toyo Contact Lens Co., Ltd.
- Kyoichi Tanaka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Tatsutoshi Nakajima

Person

Patents Grantslast 30 patents

Process for producing contact lens with hydrophilic surface and con...

Method for treating the surface of an oxygen permeable hard contact...

Method for treating the surface of an oxygen permeable hard contact...

High water-absorptive soft contact lens

Contact lens and process for preparing the same

Copolymer for soft contact lens, its preparation and soft contact l...