Inventor · disambiguated record
Yoshiko Ishii
Also filed as: ISHII YOSHIKO
8 granted patents·340 citations·filing 1979–2006
89Inventor score
Top patents by PatentIndex Score
8 records- 0194US5638159ADeveloping unit for an image forming apparatus and method of collecting bicomponent developer therefromRICOH KK·Filed 1995·Granted Jun 10, 1997·81 cites·8 claims
- 0294US5606408AImage forming apparatus and cleaning device thereforRICOH KK·Filed 1995·Granted Feb 25, 1997·73 cites·35 claims
- 0393US5774772AToner cartridge having a toner stirring memberRICOH KK·Filed 1996·Granted Jun 30, 1998·66 cites·65 claims
- 0490US5619316AImage forming apparatusRICOH KK·Filed 1996·Granted Apr 8, 1997·53 cites·5 claims
- 0584US4284722AHeat and acid-stable alpha-amylase enzymes and processes for producing the sameCPC INTERNATIONAL INC·Filed 1979·Granted Aug 18, 1981·48 cites·18 claims
- 0674US5442430AColor image forming apparatus and cleaning device thereforRICOH KK·Filed 1994·Granted Aug 15, 1995·19 cites·19 claims
- 0748US7879315B2Agent for dissolving dental calculi and dental cariesSHOWA PHARM CHEM IND·Filed 2003·Granted Feb 1, 2011·0 cites·6 claims
- 0839US8713352B2Method, system and program for securing redundancy in parallel computing systemOKADA MASAKUNI·Filed 2006·Granted Apr 29, 2014·0 cites·17 claims
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