Inventor · disambiguated record
Keiji Masuda
Also filed as: MASUDA KEIJI
10 granted patents·1 pending application·101 citations·filing 1975–2012
89Inventor score
Top patents by PatentIndex Score
11 records- 0184US8558614B2Amplification deviceMASUDA KEIJI·Filed 2012·Granted Oct 15, 2013·18 cites·8 claims
- 0277US8659358B2Amplifier, transmission apparatus, and gate voltage determination methodMASUDA KEIJI·Filed 2012·Granted Feb 25, 2014·6 cites·17 claims
- 0375US4908513ACharging apparatusKONISHIROKU PHOTO IND·Filed 1988·Granted Mar 13, 1990·19 cites·6 claims
- 0467US4367690AHeated roller type fixing apparatusKONISHIROKU PHOTO IND·Filed 1981·Granted Jan 11, 1983·14 cites·1 claims
- 0563US4001257AProcess for producing nicotinic acidNIPPON SODA CO·Filed 1975·Granted Jan 4, 1977·6 cites·6 claims
- 0653US5751431ADigital image forming apparatus capable of easily installing and removing optical scanner unitSHARP KK·Filed 1996·Granted May 12, 1998·18 cites·13 claims
- 0751US4939537AExposure controlling apparatusKONISHIROKU PHOTO IND·Filed 1989·Granted Jul 3, 1990·6 cites·9 claims
- 0845US5921537APost-processing apparatus of digital image forming apparatusSHARP KK·Filed 1997·Granted Jul 13, 1999·7 cites·22 claims
- 0939US4448511AElectrophotographic recording apparatus with corona-discharge device having cover means between end of discharge wire and electrophotosensitive surfaceKONISHIROKU PHOTO IND·Filed 1981·Granted May 15, 1984·4 cites·11 claims
- 1037US4428661AMagnetic brush type developing deviceKONISHIROKU PHOTO IND·Filed 1982·Granted Jan 31, 1984·3 cites·12 claims
- 1127US2003186569A1. Component mounting structureFiled 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →