Inventor · disambiguated record
Yoshihisa Saito
Also filed as: HEMMI KEIJI · SAITO YOSHIHISA
9 granted patents·65 citations·filing 1973–1981
87Inventor score
Technology areasC07D
Files withFUJISAWA PHARMACEUTICAL CO9
Top patents by PatentIndex Score
9 records- 0193US4207234A4-Unsubstituted azetidinone derivatives and process for preparation thereofFUJISAWA PHARMACEUTICAL CO·Filed 1977·Granted Jun 10, 1980·29 cites·4 claims
- 0285US3993646AProcess for the ring expansion of penicillins to cephalosporin compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1974·Granted Nov 23, 1976·10 cites·17 claims
- 0384US4214094ASubstituted-phenyl substituted-alkyl ethers and the preparation thereofFUJISAWA PHARMACEUTICAL CO·Filed 1977·Granted Jul 22, 1980·12 cites·45 claims
- 0482US4009159AHalogenated penam derivatives and the preparation thereofFUJISAWA PHARMACEUTICAL CO·Filed 1973·Granted Feb 22, 1977·8 cites·18 claims
- 0563US4036847AHalogenated penam derivatives and the preparation thereofFUJISAWA PHARMACEUTICAL CO·Filed 1976·Granted Jul 19, 1977·2 cites·3 claims
- 0650US4435321AAzetidinone 4-disulfidesFUJISAWA PHARMACEUTICAL CO·Filed 1980·Granted Mar 6, 1984·1 cites·8 claims
- 0750US4267340ADisulfide substituted oxazetidine derivativesFUJISAWA PHARMACEUTICAL CO·Filed 1977·Granted May 12, 1981·2 cites·13 claims
- 0843US4472300AAzetidinone derivatives and process for preparation thereofFUJISAWA PHARMACEUTICAL CO·Filed 1980·Granted Sep 18, 1984·1 cites·1 claims
- 0939US4931555ADisulfide substituted oxazetidine derivativesFUJISAWA PHARMACEUTICAL CO·Filed 1981·Granted Jun 5, 1990·0 cites·22 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →