Inventor · disambiguated record
Yoshiyuki Hirakawa
Also filed as: HIRAKAWA YOSHIYUKI
7 granted patents·374 citations·filing 1988–1995
89Inventor score
Top patents by PatentIndex Score
7 records- 0187US5320853AControlled release formulation for pharmaceutical compoundsMERRELL DOW PHARMA·Filed 1992·Granted Jun 14, 1994·90 cites·11 claims
- 0287US5068112AControlled release pharmaceutical preparation and method for producing the sameTANABE SEIYAKU CO·Filed 1989·Granted Nov 26, 1991·86 cites·6 claims
- 0386US5395628AControlled release succinic acid microcapsules coated with aqueous acrylicsTANABE SEIYAKU CO·Filed 1992·Granted Mar 7, 1995·98 cites·12 claims
- 0469US5725880APharmaceutical preparation controlled to release medicinal active ingredient at targeted site in intestinal tractTANABE SEIYAKU CO·Filed 1995·Granted Mar 10, 1998·38 cites·12 claims
- 0566US5614220APharmaceutical preparation controlled to release medicinal active ingredient at targeted site in intestinal tractTANABE SEIYAKU CO·Filed 1995·Granted Mar 25, 1997·36 cites·4 claims
- 0660US5254347AControlled release pharmaceutical preparation and method for producing the sameTANABE SEIYAKU CO·Filed 1991·Granted Oct 19, 1993·24 cites·8 claims
- 0735US4966899AAntibacterial lyophilized preparation of aspoxicillinTANABE SEIYAKU CO·Filed 1988·Granted Oct 30, 1990·2 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →