Inventor · disambiguated record
Hiroyasu Sumida
Also filed as: SUMIDA HIROYASU
12 granted patents·2 pending applications·674 citations·filing 1988–2021
93Inventor score
Top patents by PatentIndex Score
14 records- 0195US5383754AImage forming apparatus having an image orientation identifying device and a binding deviceRICOH KK·Filed 1993·Granted Jan 24, 1995·158 cites·18 claims
- 0287US5751854AOriginal-discrimination system for discriminating special document, and image forming apparatus, image processing apparatus and duplicator using the original-discrimination systemRICOH KK·Filed 1996·Granted May 12, 1998·181 cites·4 claims
- 0383US4980725ABackground accenuating image forming apparatusRICOH KK·Filed 1989·Granted Dec 25, 1990·26 cites·5 claims
- 0481US5550623ADigital copying machine having selective paper feed based on copy productivityRICOH KK·Filed 1995·Granted Aug 27, 1996·35 cites·23 claims
- 0580US5987227AImage forming apparatus and method for detecting and eliminating avoidable image reading operationsRICOH KK·Filed 1997·Granted Nov 16, 1999·75 cites·24 claims
- 0677US6272248B1Original-discrimination system for discriminating special document, and image forming apparatus, image processing apparatus and duplicator using the original-discrimination systemRICOH KK·Filed 1998·Granted Aug 7, 2001·113 cites·2 claims
- 0767US6226102B1Image forming apparatus which forms an image based on stored image dataRICOH KK·Filed 1997·Granted May 1, 2001·38 cites·11 claims
- 0867US2021333299A1Pretreatment apparatus and pretreatment methodSYSMEX CORP·Filed 2021·Application pending·0 cites
- 0960US11099200B2Pretreatment apparatus and pretreatment methodSYSMEX CORP·Filed 2017·Granted Aug 24, 2021·0 cites·18 claims
- 1059US4851878ACopy information output device for a copierRICOH KK·Filed 1988·Granted Jul 25, 1989·11 cites·6 claims
- 1155US5877864AImage forming apparatus which determines if memory will overflow before reading an image to store in the memoryRICOH KK·Filed 1996·Granted Mar 2, 1999·20 cites·12 claims
- 1254US5049932ACopier having an editing functionRICOH KK·Filed 1990·Granted Sep 17, 1991·10 cites·5 claims
- 1354US2010047128A1Liquid aspirating apparatus and sample analyzerSYSMEX CORP·Filed 2009·Application pending·0 cites
- 1447US4881101ADevice for setting operation modes of office equipmentRICOH KK·Filed 1988·Granted Nov 14, 1989·7 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →