Inventor · disambiguated record
Hirofumi Nakayasu
Also filed as: NAKAYASU HIROFUMI
29 granted patents·991 citations·filing 1990–2001
98Inventor score
Top patents by PatentIndex Score
29 records- 0196US5978626AImage forming apparatus with cover lifting mechanismFUJITSU LTD·Filed 1998·Granted Nov 2, 1999·81 cites·15 claims
- 0294US6714748B1Image forming apparatus, recording medium in which test-pattern image forming program is recorded, test-pattern image forming method, and skew angle calculation methodFUJITSU LTD·Filed 2000·Granted Mar 30, 2004·71 cites·16 claims
- 0393US6219508B1Image forming apparatus with belt mark sensorFUJITSU LTD·Filed 2000·Granted Apr 17, 2001·42 cites·8 claims
- 0493US5798779AUltrasonic printing apparatus and method in which the phases of the ultrasonic oscillators are controlled to prevent unwanted phase cancellationsFUJITSU LTD·Filed 1995·Granted Aug 25, 1998·127 cites·72 claims
- 0593US5612723AUltrasonic printerFUJITSU LTD·Filed 1994·Granted Mar 18, 1997·104 cites·34 claims
- 0691US6070041APrinting apparatusFUJITSU LTD·Filed 1999·Granted May 30, 2000·50 cites·8 claims
- 0791US5946537APrinting apparatus with positional offset detection and correctionFUJITSU LTD·Filed 1998·Granted Aug 31, 1999·49 cites·15 claims
- 0890US6049690APrinting apparatusFUJITSU LTD·Filed 1998·Granted Apr 11, 2000·46 cites·22 claims
- 0988US6366304B1Thermal correction for image-forming exposure device and method of manufacturing the deviceFUJITSU LTD·Filed 2000·Granted Apr 2, 2002·34 cites·18 claims
- 1088US6038417AImage forming apparatus with cover lifting mechanismFUJITSU LTD·Filed 1999·Granted Mar 14, 2000·34 cites·8 claims
- 1179US6118463APositional error correction for color image forming apparatusFUJITSU LTD·Filed 1998·Granted Sep 12, 2000·73 cites·21 claims
- 1275US6321060B1Printing apparatusFUJITSU LTD·Filed 1999·Granted Nov 20, 2001·21 cites·2 claims
- 1374US7242491B2Printing agent service method and systemFUJI XEROX CO LTD·Filed 2001·Granted Jul 10, 2007·21 cites·16 claims
- 1474US6393244B1Color shift correcting structure of image forming apparatusFUJITSU LTD·Filed 2000·Granted May 21, 2002·15 cites·12 claims
- 1573US7002701B1Image formation apparatus and image exposure apparatusFUJITSU LTD·Filed 1999·Granted Feb 21, 2006·22 cites·9 claims
- 1672US5946523APrinting apparatusFUJITSU LTD·Filed 1998·Granted Aug 31, 1999·24 cites·13 claims
- 1771US6219496B1Image forming apparatusFUJITSU LTD·Filed 1999·Granted Apr 17, 2001·22 cites·27 claims
- 1871US6198896B1Image formation apparatus capable of detecting and correcting positional offsetsFUJISU LTD·Filed 1999·Granted Mar 6, 2001·46 cites·39 claims
- 1969US6434347B2Printing apparatus and toner density measuring methodFUJITSU LTD·Filed 2001·Granted Aug 13, 2002·11 cites·14 claims
- 2067US5499876APrinting apparatus having head gap adjusting deviceFUJITSU LTD·Filed 1994·Granted Mar 19, 1996·21 cites·4 claims
- 2163US6379482B1Manufacturing device and method of the exposure deviceFUJITSU LTD·Filed 2000·Granted Apr 30, 2002·9 cites·19 claims
- 2254US5064304APrinter having an ink ribbon shift apparatusFUJITSU LTD·Filed 1991·Granted Nov 12, 1991·13 cites·5 claims
- 2352US6340982B1Image forming apparatus and exposure device thereofFUJITSU LTD·Filed 2000·Granted Jan 22, 2002·5 cites·11 claims
- 2451US5907344AImage forming apparatus with image tone adjusting functionFUJITSU LTD·Filed 1998·Granted May 25, 1999·15 cites·20 claims
- 2551US5732319APressure roller having deflection compensating shaftFUJITSU LTD·Filed 1996·Granted Mar 24, 1998·10 cites·5 claims
- 2650US6292205B1Electrophotographic apparatus with quantity-of-light controlFUJITSU LTD·Filed 1999·Granted Sep 18, 2001·14 cites·13 claims
- 2743US6330011B1Electrophotography apparatus and exposure apparatus using particularly shaped light emitting elementsFUJITSU LTD·Filed 1999·Granted Dec 11, 2001·7 cites·8 claims
- 2835US5120146APrinter having a bail roller opening and closing mechanismFUJITSU LTD·Filed 1991·Granted Jun 9, 1992·3 cites·5 claims
- 2929US5071275APrinter having a bail roller opening and closing mechanismFUJITSU LTD·Filed 1990·Granted Dec 10, 1991·1 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →