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Nagoya, JP
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Patents Grants
last 30 patents
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
Highly water-absorptive optical material
Patent number
4,745,158
Issue date
May 17, 1988
Toyo Contact Lens Co., Ltd.
Tatsutoshi Nakashima
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for cleaning contact lenses with composition containing amid...
Patent number
4,738,790
Issue date
Apr 19, 1988
Toyo Contact Lens Co., Ltd.
Nobuyuki Miyajima
G02 - OPTICS
Information
Patent Grant
Detergent composition for contact lenses
Patent number
4,710,313
Issue date
Dec 1, 1987
Lion Corporation
Nobuyuki Miyajima
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Oxygen permeable soft contact lens material
Patent number
4,649,184
Issue date
Mar 10, 1987
Toyo Contact Lens Co., Ltd.
Toshiharu Yoshikawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Oxygen permeable hard contact lens formed from styrene monomer cont...
Patent number
4,594,401
Issue date
Jun 10, 1986
Shin-Etsu Chemical Co., Ltd.
Kozo Takahashi
G02 - OPTICS
Information
Patent Grant
Water-absorptive contact lenses
Patent number
4,547,543
Issue date
Oct 15, 1985
Toyo Contact Lens Co., Ltd.
Takanori Shibata
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Soft contact lenses
Patent number
4,529,747
Issue date
Jul 16, 1985
Toyo Contact Lens Co., Ltd.
Yasuyuki Kato
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Oxygen permeable soft contact lens composition
Patent number
4,525,563
Issue date
Jun 25, 1985
Toyo Contact Lens Co.
Takanori Shibata
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Contact lens cleaning and storage composition
Patent number
4,500,441
Issue date
Feb 19, 1985
Toyo Contact Lens Co., Ltd.
Kyoichi Tanaka
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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
Cleaning composition for contact lenses
Patent number
4,440,662
Issue date
Apr 3, 1984
Toyo Contact Lens Co., Ltd.
Akira Tsuzuki
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Oxygen permeable hard contact lens
Patent number
4,433,125
Issue date
Feb 21, 1984
Shin-Etsu Chemical Co., Ltd.
Shoji Ichinohe
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Cleaning and preservative solution for contact lenses
Patent number
4,259,202
Issue date
Mar 31, 1981
Toyo Contact Lens Co., Ltd.
Kyoichi Tanaka
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Polymer for contact lens and contact lens made thereof
Patent number
4,235,985
Issue date
Nov 25, 1980
Toyo Contact Lens Co., Ltd.
Kyoichi Tanaka
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method of coloring water-absorbable plastics and colored water-abso...
Patent number
4,157,892
Issue date
Jun 12, 1979
Toyo Contact Lens Company, Limited
Kyoichi Tanaka
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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-...
Information
Patent Grant
Methyldi(trimethylsiloxy)sylylpropylglycerol methacrylate
Patent number
4,139,548
Issue date
Feb 13, 1979
Toyo Contact Lens Co., Ltd.
Kyoichi Tanaka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Copolymer for contact lens, its preparation and contact lens made t...
Patent number
4,139,692
Issue date
Feb 13, 1979
Toyo Contact Lens Co., Ltd.
Kyoichi Tanaka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
High toughness synthetic high polymers for soft contact lenses and...
Patent number
3,992,563
Issue date
Nov 16, 1976
Toyo Contact Lens Company, Limited
Kyoichi Tanaka
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
73138589 - F
Serial number
73138589
Registration number
1110839
Filing date
Aug 23, 1977
TOYO CONTACT LENS CO., LTD.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73138588 - MENICON
Serial number
73138588
Registration number
1110441
Filing date
Aug 23, 1977
TOYO CONTACT LENS CO., LTD.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments