Inventor · disambiguated record
Katsumi Muroi
Also filed as: MUROI KATSUMI
11 granted patents·256 citations·filing 1983–1996
91Inventor score
Top patents by PatentIndex Score
11 records- 0189US4749458AFree-flow electrophoretic separation method and apparatus thereforHITACHI LTD·Filed 1987·Granted Jun 7, 1988·76 cites·2 claims
- 0289US4698142AFree-flow electrophoretic separation method and apparatus thereforHITACHI LTD·Filed 1985·Granted Oct 6, 1987·70 cites·2 claims
- 0386US4511363AMethod of upgrading low-rank coalHITACHI LTD·Filed 1983·Granted Apr 16, 1985·33 cites·10 claims
- 0475US4523927AMethod of coal upgradingHITACHI LTD·Filed 1983·Granted Jun 18, 1985·20 cites·10 claims
- 0571US4559060AUpgrading method of low-rank coalHITACHI LTD·Filed 1983·Granted Dec 17, 1985·16 cites·11 claims
- 0650US4982423AData storage apparatusCASIO COMPUTER CO LTD·Filed 1989·Granted Jan 1, 1991·11 cites·30 claims
- 0749US4777499AMethod and apparatus for image recordingHITACHI LTD·Filed 1988·Granted Oct 11, 1988·8 cites·14 claims
- 0847US5909652ARadio communication system and radio communication terminalCASIO COMPUTER CO LTD·Filed 1996·Granted Jun 1, 1999·16 cites·33 claims
- 0938US4977415AElectrostatic recording head, image recording apparatus, developing agent supplying device, display device and method of producing electrostatic recording headHITACHI LTD·Filed 1989·Granted Dec 11, 1990·4 cites·29 claims
- 1030US5144343AImage recording method and apparatusHITACHI LTD·Filed 1990·Granted Sep 1, 1992·2 cites·6 claims
- 1127US5021810APrinting machineHITACHI LTD·Filed 1990·Granted Jun 4, 1991·0 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when Katsumi Muroi files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →