Inventor · disambiguated record
Keishi Tsuboi
Also filed as: TSUBOI KEISHI
4 granted patents·113 citations·filing 1992–1998
80Inventor score
Files withNIPPON CATALYTIC CHEM IND4
Top patents by PatentIndex Score
4 records- 0180US5733857AMaleic acid based copolymer and its production process and useNIPPON CATALYTIC CHEM IND·Filed 1994·Granted Mar 31, 1998·25 cites·48 claims
- 0280US5298570ABiodegradable hydrophilic crosslinked polymer, process for producing it, and uses thereofNIPPON CATALYTIC CHEM IND·Filed 1992·Granted Mar 29, 1994·49 cites·11 claims
- 0362US5993666AMaleic acid based copolymer, and its production process and useNIPPON CATALYTIC CHEM IND·Filed 1998·Granted Nov 30, 1999·24 cites·15 claims
- 0456US5668252ADrying process of viscous solution containing (meth)acrylic acid-based polymerNIPPON CATALYTIC CHEM IND·Filed 1995·Granted Sep 16, 1997·15 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →