Yasuhito Hishida

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Nagoya, JP

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Patents Grantslast 30 patents

Information Patent Grant
Oxygen permeable contact lens having high durable hydrophilic surfa...
- Patent number 5,910,518
- Issue date Jun 8, 1999
- Menicon Co., Ltd.
- Kazuhiko Nakada
- G02 - OPTICS
Information Patent Grant
Oxygen permeable contact lens having high durable hydrophilic surfa...
- Patent number 5,708,050
- Issue date Jan 13, 1998
- Menicon Co., Ltd.
- Kazuhiko Nakada
- G02 - OPTICS
Information Patent Grant
Water-absorptive contact lens
- Patent number 5,426,133
- Issue date Jun 20, 1995
- Menicon Co., Ltd.
- Yasuhito Hishida
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...