Inventor · disambiguated record
Takashi Hatakeyama
Also filed as: HATAKEYAMA TAKASHI
26 granted patents·12 pending applications·86 citations·filing 1987–2019
94Inventor score
Top patents by PatentIndex Score
38 records- 0187US7764908B2Developing unit and developer stirring and transporting methodTOSHIBA KK·Filed 2006·Granted Jul 27, 2010·8 cites·17 claims
- 0279US7206523B2Color image forming apparatus and method using detachable process unitsTOSHIBA TEC KK·Filed 2004·Granted Apr 17, 2007·13 cites·8 claims
- 0378US7831181B2Developing deviceTOSHIBA KK·Filed 2008·Granted Nov 9, 2010·4 cites·20 claims
- 0478US7650100B2Development apparatus, image forming apparatus, and developer transfer methodTOSHIBA KK·Filed 2006·Granted Jan 19, 2010·5 cites·17 claims
- 0578US7383002B2Developing device, process cartridge and image forming apparatusTOSHIBA KK·Filed 2006·Granted Jun 3, 2008·5 cites·12 claims
- 0670US6915093B2Image forming apparatus having a guide device for guiding a brush rollerTOSHIBA TEC KK·Filed 2003·Granted Jul 5, 2005·12 cites·11 claims
- 0769US7349643B2Image forming apparatus and image forming method having a cleaner and a paper detecting unitTOSHIBA KK·Filed 2007·Granted Mar 25, 2008·2 cites·14 claims
- 0867US6424813B1Image forming apparatus having a developing roller and a developing device to minimize image carrier wearTOSHIBA TEC KK·Filed 2000·Granted Jul 23, 2002·10 cites·11 claims
- 0963US8099002B2Developing device of image forming apparatus using a toner and carrier mixtureIZUMI TAKAO·Filed 2008·Granted Jan 17, 2012·2 cites·12 claims
- 1062US7426358B2Image forming apparatus and method having a cleanerless image forming unitTOSHIBA KK·Filed 2005·Granted Sep 16, 2008·2 cites·16 claims
- 1159US5380394AImage forming apparatusTOSHIBA KK·Filed 1993·Granted Jan 10, 1995·19 cites·11 claims
- 1253US10969770B2Inspection information prediction apparatus, inspection apparatus, and non-transitory computer readable medium storing inspection information prediction programFUJI XEROX CO LTD·Filed 2019·Granted Apr 6, 2021·0 cites·20 claims
- 1353US8005405B2Developing unit and developer stirring and transporting methodTOSHIBA KK·Filed 2010·Granted Aug 23, 2011·0 cites·16 claims
- 1452US8195071B2Developing deviceHATAKEYAMA TAKASHI·Filed 2010·Granted Jun 5, 2012·0 cites·20 claims
- 1552US7627261B2Image forming apparatus and image forming method having control of cleaning depending on number of transferred imagesTOSHIBA KK·Filed 2008·Granted Dec 1, 2009·0 cites·18 claims
- 1651US8112017B2Developing unit and developer stirring and transporting methodHATAKEYAMA TAKASHI·Filed 2010·Granted Feb 7, 2012·0 cites·9 claims
- 1750US8045897B2Developing deviceTOSHIBA KK·Filed 2009·Granted Oct 25, 2011·0 cites·18 claims
- 1848US8244161B2Developing apparatusIZUMI TAKAO·Filed 2009·Granted Aug 14, 2012·0 cites·20 claims
- 1948US7783228B2Developing unit and developer stirring/transporting methodTOSHIBA KK·Filed 2006·Granted Aug 24, 2010·0 cites·18 claims
- 2048US2007104517A1Image forming apparatus and color image forming apparatusTOSHIBA TEC KK·Filed 2006·Application pending·0 cites
- 2147US8238798B2Developing device and developing method for image forming apparatusHATAKEYAMA TAKASHI·Filed 2010·Granted Aug 7, 2012·0 cites·20 claims
- 2246US8131186B2Developing deviceHATAKEYAMA TAKASHI·Filed 2008·Granted Mar 6, 2012·0 cites·24 claims
- 2346US8000637B2Supplying and discharging developer in an image forming apparatus, process cartridge and developing deviceTOSHIBA KK·Filed 2009·Granted Aug 16, 2011·0 cites·20 claims
- 2444US2010124442A1Developing device, developing method, and image forming apparatusTOSHIBA KK·Filed 2009·Application pending·0 cites
- 2543US7689147B2Developing apparatus and developer collecting methodTOSHIBA KK·Filed 2006·Granted Mar 30, 2010·0 cites·18 claims
- 2643US2009257783A1Image forming apparatus and developing deviceTOSHIBA KK·Filed 2009·Application pending·0 cites
- 2741US7197267B2Image forming apparatus and control method using a two-component developerTOSHIBA TEC KK·Filed 2004·Granted Mar 27, 2007·1 cites·18 claims
- 2841US2008181672A1Development apparatus and image forming apparatusTOSHIBA KK·Filed 2007·Application pending·0 cites
- 2941US2008170885A1Developing device and image forming apparatusTOSHIBA KK·Filed 2007·Application pending·0 cites
- 3039US2006062599A1Image forming apparatus and color image forming apparatusTOSHIBA TEC KK·Filed 2004·Application pending·0 cites
- 3138US4803502AImage formation cartridge and image forming apparatus using the sameTOSHIBA KK·Filed 1987·Granted Feb 7, 1989·3 cites·20 claims
- 3237US2011199416A1Image forming apparatus and method of inkjet having humidity adjustment mechanismTOSHIBA KK·Filed 2011·Application pending·0 cites
- 3337US2011290137A1Image forming apparatusHATAKEYAMA TAKASHI·Filed 2011·Application pending·0 cites
- 3437US2011310169A1Inkjet head unitTAKAHASHI NOBUAKI·Filed 2011·Application pending·0 cites
- 3536US2011064429A1Image forming apparatus and image forming methodTOSHIBA KK·Filed 2010·Application pending·0 cites
- 3636US2011292103A1Image forming apparatus and method of inkjet having humidity adjustment mechanismHATAKEYAMA TAKASHI·Filed 2011·Application pending·0 cites
- 3736US2011013917A1Developing device and method for detecting deterioration of developerTOSHIBA KK·Filed 2010·Application pending·0 cites
- 3833US6542714B1Image forming method and apparatus that uses an external sheet discharge tray for double-side copyingTOSHIBA TEC KK·Filed 2001·Granted Apr 1, 2003·0 cites·14 claims
Join the waitlist — get patent alerts
Get an alert when Takashi Hatakeyama 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 →