Inventor · disambiguated record
Hitoshi Ohki
Also filed as: OHKI HITOSHI
16 granted patents·3 pending applications·153 citations·filing 1996–2017
93Inventor score
Top patents by PatentIndex Score
19 records- 0183US6184388B1Substituted aminocycloalkylpyrrolidine derivatives and cis-substituted aminocycloalkylpyrrolidine derivativesDAIICHI SEIYAKU CO·Filed 1999·Granted Feb 6, 2001·29 cites·4 claims
- 0283US6169086B1Pyrazole derivativesDAIICHI SEIYAKU CO·Filed 1999·Granted Jan 2, 2001·29 cites·7 claims
- 0381US6121285ASubstituted aminocycloalkylpyrrolidine derivatives and cis-substituted aminocycloalkylpyrrolidine derivativesDAIICHI SEIYAKU CO·Filed 1998·Granted Sep 19, 2000·26 cites·47 claims
- 0474US8933103B2Pyridone derivativesDAIICHI SANKYO CO LTD·Filed 2013·Granted Jan 13, 2015·4 cites·28 claims
- 0574US8236813B2Tricyclic pyrazolopyrimidine derivativesOHKI HITOSHI·Filed 2010·Granted Aug 7, 2012·4 cites·41 claims
- 0672US6384050B1Tricyclic amine derivativesDAIICHI SEIYAKU CO·Filed 1997·Granted May 7, 2002·15 cites·36 claims
- 0767US6552018B1Pyrazole derivativesDAIICHI SEIYAKU CO·Filed 2000·Granted Apr 22, 2003·3 cites·6 claims
- 0864US6656952B2Cis-substituted fluoromethylpyrrolidine derivativeDAIICHI SEIYAKU CO·Filed 1998·Granted Dec 2, 2003·10 cites·13 claims
- 0960US6194434B1Cycloalkylaminomethylpyrrolidine derivativesDAIICHI SEIYAKU CO·Filed 1997·Granted Feb 27, 2001·8 cites·8 claims
- 1059US8846703B2Crystal of a free tricyclic pyrazolopyrimidine derivativeDAIICHI SANKYO CO LTD·Filed 2013·Granted Sep 30, 2014·0 cites·3 claims
- 1159US5849757APyridonecarboxylic acid derivatives substituted by a bicyclic amino group as antibacterialsDAIICHI SEIYAKU CO·Filed 1996·Granted Dec 15, 1998·18 cites·7 claims
- 1251US2014371249A1Crystal of a free tricyclic pyrazolopyrimidine derivativeDAIICHI SANKYO CO LTD·Filed 2014·Application pending·0 cites
- 1349US6586604B2Tricyclic amine derivativesDAIICHI SEIYAKU CO·Filed 2001·Granted Jul 1, 2003·0 cites·8 claims
- 1448US8445504B2Tricyclic pyrazolopyrimidine derivativesOHKI HITOSHI·Filed 2012·Granted May 21, 2013·0 cites·30 claims
- 1545US10774087B2Sulfonamide derivative having coumarin skeletonDAIICHI SANKYO CO LTD·Filed 2017·Granted Sep 15, 2020·0 cites·5 claims
- 1642US6469023B1Heterocyclic spiro-derivativeDAIICHI SEIYAKU CO·Filed 1996·Granted Oct 22, 2002·2 cites·7 claims
- 1740US6573377B1Pyrazole derivatives and salts thereofDAIICHI SEIYAKU CO·Filed 1999·Granted Jun 3, 2003·5 cites·35 claims
- 1839US2007191356A1Pyridobenzoxazine derivativeTAKEMURA MAKOTO·Filed 2005·Application pending·0 cites
- 1938US2002077345A1Cis-substituted aminocycloalkylpyrrolidine derivativesDAIICHI SEIYAKU CO·Filed 2001·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Hitoshi Ohki files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →