Inventor · disambiguated record
Shigenobu Utaka
Also filed as: UTAKA SHIGENOBU
8 granted patents·49 citations·filing 1991–1997
85Inventor score
Technology areasG03G
Files withFUJITSU LTD8
Top patents by PatentIndex Score
8 records- 0162US5678143AImage forming apparatus for collecting residual toner from a drum using an AC voltageFUJITSU LTD·Filed 1994·Granted Oct 14, 1997·12 cites·19 claims
- 0251US6091925AFixing unit with undirectional clutch mechanism and image forming apparatus with sealing member and agitating mechanismFUJITSU LTD·Filed 1997·Granted Jul 18, 2000·10 cites·12 claims
- 0347US5467176AImage forming method and apparatus with magnetic brushFUJITSU LTD·Filed 1994·Granted Nov 14, 1995·7 cites·53 claims
- 0446US5200784ATransferring device controlled for preventing the leading edge of a sheet from being excessively chargedFUJITSU LTD·Filed 1991·Granted Apr 6, 1993·8 cites·6 claims
- 0541US5778285AImage forming apparatus for collecting residual toner from a drum using an AC voltageFUJITSU LTD·Filed 1997·Granted Jul 7, 1998·5 cites·6 claims
- 0638US5572298AImage forming apparatus having a developing apparatus which includes a partition member for partitioning a developing room and a toner hopperFUJITSU LTD·Filed 1995·Granted Nov 5, 1996·4 cites·20 claims
- 0736US5448341AImage forming apparatusFUJITSU LTD·Filed 1994·Granted Sep 5, 1995·3 cites·46 claims
- 0828US5845184ADeveloping unit having improved toner density controlFUJITSU LTD·Filed 1994·Granted Dec 1, 1998·0 cites·23 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →