Membership
Tour
Register
Log in
Yasukichi Yanagihara
Follow
Person
Kakamigahara, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Contact lens formed from a hydrogel fundamental material
Patent number
4,788,227
Issue date
Nov 29, 1988
Tomei Sangyo Kabushiki Kaisha
Yasukichi Yanagihara
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Hydrogel fundamental material
Patent number
4,699,946
Issue date
Oct 13, 1987
Tomei Sangyo Kabushiki Kaisha
Yasukichi Yanagihara
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...