Yoshitaka Taniyama

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Nagoya, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing a tinted contact lens
- Patent number 5,516,467
- Issue date May 14, 1996
- Menicon Co., Ltd.
- Kazuharu Niwa
- 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 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
Contact lens material
- Patent number 4,814,402
- Issue date Mar 21, 1989
- Menicon Co., Ltd.
- Tatsutoshi Nakashima
- 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-...