Inventor · disambiguated record
Seiya Ogawa
Also filed as: OGAWA SEIYA
12 granted patents·1 pending application·332 citations·filing 1976–2019
91Inventor score
Top patents by PatentIndex Score
13 records- 0196US5214627AOptical disk having read-exclusive and write-enable regionsFUJITSU LTD·Filed 1990·Granted May 25, 1993·106 cites·7 claims
- 0296US4746569ALongitudinal magnetic coated recording mediumFUJITSU LTD·Filed 1986·Granted May 24, 1988·109 cites·10 claims
- 0384US5144601AMagneto-optical overwriting methods using erasing pulses, each of which has a higher frequency and narrower width than that of the overwriting pulsesFUJITSU LTD·Filed 1991·Granted Sep 1, 1992·39 cites·10 claims
- 0476US5353265AMagneto optical overwriting methods using a single optical head designed for a two-beam overwriteFUJITSU LTD·Filed 1990·Granted Oct 4, 1994·26 cites·10 claims
- 0571US8998371B2Image forming apparatusNAKANO TOMOAKI·Filed 2014·Granted Apr 7, 2015·2 cites·10 claims
- 0664US6392832B1Method for using heat to record on magnetic medium and disk apparatus having temperature changing deviceFUJITSU LTD·Filed 1998·Granted May 21, 2002·19 cites·15 claims
- 0764US4650742ARecording media with recording layer of two metal layers sandwiching sublimable organic substance layerFUJITSU LTD·Filed 1986·Granted Mar 17, 1987·14 cites·5 claims
- 0849US4070522AMagnetic recording mediumFUJITSU LTD·Filed 1976·Granted Jan 24, 1978·11 cites·9 claims
- 0946US8736883B2Image forming apparatusMATSUMOTO KAZUYOSHI·Filed 2012·Granted May 27, 2014·0 cites·11 claims
- 1041US10712699B2Image forming apparatus and method for measuring toner chargeOGAWA SEIYA·Filed 2019·Granted Jul 14, 2020·0 cites·4 claims
- 1139US9900456B2Human body detection device and image forming apparatusOGAWA SEIYA·Filed 2016·Granted Feb 20, 2018·0 cites·19 claims
- 1238US4822634ALongitudinal magnetic coated recording mediumFUJITSU LTD·Filed 1987·Granted Apr 18, 1989·6 cites·10 claims
- 1337US2015147079A1Image forming apparatus and charge control methodIWATA ATSUKI·Filed 2014·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →