Inventor · disambiguated record
Hironari Sugiyama
Also filed as: SUGIYAMA HIRONARI
4 granted patents·13 citations·filing 1969–1977
70Inventor score
Top patents by PatentIndex Score
4 records- 0154US4071534AProcess for producing l-ascorbic acid-2-sulfateKUMIAI CHEMICAL INDUSTRY CO·Filed 1976·Granted Jan 31, 1978·3 cites·6 claims
- 0252US4089964AMethod of controlling fungal diseases in plants and compositions effective thereforKUMIAI CHEMICAL INDUSTRY CO·Filed 1977·Granted May 16, 1978·4 cites·3 claims
- 0348US4070377AProcess for producing L-ascorbic acid-2-sulfateKUMIAI CHEMICAL INDUSTRY CO·Filed 1976·Granted Jan 24, 1978·2 cites·7 claims
- 0437US4059635ASubstituted derivatives of 1,1-dichloroalkene-1 and their preparation and usesSUGIYAMA HIRONARI·Filed 1969·Granted Nov 22, 1977·4 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →