Inventor · disambiguated record
Haruhiko Sugiyama
Also filed as: SUGIYAMA HARUHIKO
4 granted patents·150 citations·filing 1983–1991
76Inventor score
Top patents by PatentIndex Score
4 records- 0195US5359085AFulgimide derivativesWAKO PURE CHEM IND LTD·Filed 1990·Granted Oct 25, 1994·134 cites·19 claims
- 0256US5238818AOxidizable color producing reagentWAKO PURE CHEMICALS CO LTD·Filed 1991·Granted Aug 24, 1993·10 cites·10 claims
- 0333US4634671AWater-soluble cross-linked polymer of lysyl endopeptidase, process for preparing same and use of sameWAKO PURE CHEM IND LTD·Filed 1983·Granted Jan 6, 1987·4 cites·22 claims
- 0425US5164512AOxidizable color producing reagentWAKO PURE CHEM IND LTD·Filed 1990·Granted Nov 17, 1992·2 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →