Inventor · disambiguated record
Hiroyuki Ishitobi
Also filed as: ISHITOBI HIROYUKI
3 granted patents·41 citations·filing 1983–1990
69Inventor score
Files withSHIONOGI & CO3
Top patents by PatentIndex Score
3 records- 0171US4731362AAlkylcarbamoyloxymethylcephem compoundsSHIONOGI & CO·Filed 1986·Granted Mar 15, 1988·18 cites·5 claims
- 0265US5143910APiperaziniocephalosporinsSHIONOGI & CO·Filed 1990·Granted Sep 1, 1992·22 cites·19 claims
- 0329US4581173AProduction of hydroxymethylbutenoic acids via oxidationSHIONOGI & CO·Filed 1983·Granted Apr 8, 1986·1 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →