Tadao Kojima

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Suwa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Colored contact lens and method for producing the same
- Patent number 5,708,049
- Issue date Jan 13, 1998
- Seiko Epson Corporation
- Hiroshi Katagiri
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Antimicrobial polymer, contact lens and contact lens-care articles
- Patent number 5,520,910
- Issue date May 28, 1996
- Nippon Chemical Industrial
- Kazukichi Hashimoto
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
Optical low-pass filter
- Publication number 20060215266
- Publication date Sep 28, 2006
- Seiko Epson Corporation
- Takehiko Uehara
- G02 - OPTICS
Information Patent Application
Resin composition for hybrid lens, method for producing hybrid lens...
- Publication number 20060012889
- Publication date Jan 19, 2006
- Tadao Kojima
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL