Inventor · disambiguated record
Takeyuki Takagi
Also filed as: TAKAGI TAKEYUKI
100 granted patents·4 pending applications·1,802 citations·filing 1987–2024
99Inventor score
Top patents by PatentIndex Score
104 records- 0199US9851689B2Developing cartridgeBROTHER IND LTD·Filed 2017·Granted Dec 26, 2017·18 cites·6 claims
- 0299US9268295B2Developing cartridgeBROTHER IND LTD·Filed 2014·Granted Feb 23, 2016·18 cites·21 claims
- 0399US8577244B2Developing cartridgeTAKAGI TAKEYUKI·Filed 2010·Granted Nov 5, 2013·48 cites·11 claims
- 0499US8213826B2Image forming apparatus and developing cartridgeSATO SHOUGO·Filed 2011·Granted Jul 3, 2012·24 cites·34 claims
- 0599US8014694B2Image forming apparatus and developing cartridgeBROTHER IND LTD·Filed 2010·Granted Sep 6, 2011·25 cites·15 claims
- 0699US7693442B2Developing cartridge for supplying power to a developer roller shaft when coupled to an image forming apparatusBROTHER IND LTD·Filed 2006·Granted Apr 6, 2010·61 cites·32 claims
- 0799US7693443B2Image forming apparatus and developing cartridgeBROTHER IND LTD·Filed 2006·Granted Apr 6, 2010·43 cites·16 claims
- 0899US7643770B2Image forming apparatus and developing cartridgeBROTHER IND LTD·Filed 2008·Granted Jan 5, 2010·56 cites·33 claims
- 0998US9632456B2Developing cartridgeBROTHER IND LTD·Filed 2016·Granted Apr 25, 2017·18 cites·9 claims
- 1098US9568856B2Developing cartridgeBROTHER IND LTD·Filed 2016·Granted Feb 14, 2017·18 cites·9 claims
- 1198US9213305B2Developing cartridgeBROTHER IND LTD·Filed 2015·Granted Dec 15, 2015·18 cites·10 claims
- 1298US9207631B2Developing cartridgeBROTHER IND LTD·Filed 2015·Granted Dec 8, 2015·18 cites·9 claims
- 1398US9201389B2Developing cartridgeBROTHER IND LTD·Filed 2015·Granted Dec 1, 2015·18 cites·14 claims
- 1498US9195208B2Developing cartridgeBROTHER IND LTD·Filed 2015·Granted Nov 24, 2015·18 cites·8 claims
- 1598US9037032B2Developing cartridgeBROTHER IND LTD·Filed 2013·Granted May 19, 2015·18 cites·11 claims
- 1698US7945184B2Process cartridge with member for electrical connection to image-forming deviceBROTHER IND LTD·Filed 2006·Granted May 17, 2011·44 cites·28 claims
- 1798US7512347B2Image-forming device capable of determining information on a detachably mounted developer cartridge and developer cartridge for use thereinBROTHER IND LTD·Filed 2006·Granted Mar 31, 2009·76 cites·39 claims
- 1898US7463834B2Image forming apparatus and detachably mountable developer cartridgeBROTHER IND LTD·Filed 2006·Granted Dec 9, 2008·41 cites·37 claims
- 1997US10558163B2Developing cartridgeBROTHER IND LTD·Filed 2019·Granted Feb 11, 2020·6 cites·22 claims
- 2097US8886076B2Developing cartridgeBROTHER IND LTD·Filed 2013·Granted Nov 11, 2014·9 cites·18 claims
- 2197US8583009B2Developing cartridge including detection system for determining initial developer amountTAKAGI TAKEYUKI·Filed 2011·Granted Nov 12, 2013·19 cites·12 claims
- 2297US5635928AData processing device with a keyboard having pop-up keysBROTHER IND LTD·Filed 1995·Granted Jun 3, 1997·165 cites·26 claims
- 2396US9104172B2Detecting a developing cartridgeBROTHER IND LTD·Filed 2014·Granted Aug 11, 2015·10 cites·42 claims
- 2496US9042777B2Developing cartridgeBROTHER IND LTD·Filed 2014·Granted May 26, 2015·9 cites·18 claims
- 2596US8676064B2Detecting a developing cartridgeTAKAGI TAKEYUKI·Filed 2011·Granted Mar 18, 2014·13 cites·11 claims
- 2696US4735520AKey-holding structure of keyboard with curved operating surface of keysBROTHER IND LTD·Filed 1987·Granted Apr 5, 1988·77 cites·20 claims
- 2795US11460801B2Developing cartridgeBROTHER IND LTD·Filed 2021·Granted Oct 4, 2022·2 cites·13 claims
- 2895US9383681B2Developing cartridgeBROTHER IND LTD·Filed 2015·Granted Jul 5, 2016·7 cites·20 claims
- 2995US8712286B2Developing cartridgeTAKAGI TAKEYUKI·Filed 2011·Granted Apr 29, 2014·8 cites·15 claims
- 3095US5278372AKeyboard having connecting parts with downward open recessesBROTHER IND LTD·Filed 1992·Granted Jan 11, 1994·109 cites·33 claims
- 3194US9513595B2Image forming apparatus and developing cartridgeBROTHER IND LTD·Filed 2015·Granted Dec 6, 2016·4 cites·13 claims
- 3294US8588664B2Developing cartridgeTAKAGI TAKEYUKI·Filed 2010·Granted Nov 19, 2013·7 cites·7 claims
- 3393US5504283AKey switch deviceBROTHER IND LTD·Filed 1993·Granted Apr 2, 1996·98 cites·21 claims
- 3492US8787786B2Developing cartridgeBROTHER IND LTD·Filed 2013·Granted Jul 22, 2014·3 cites·22 claims
- 3592US5512719AKey switch having elastic portions for facilitating attachment of scissors-type support linkage to keytop and holder, and removal of keytop from linkageBROTHER IND LTD·Filed 1994·Granted Apr 30, 1996·74 cites·27 claims
- 3691US12379688B2Developing cartridgeBROTHER IND LTD·Filed 2024·Granted Aug 5, 2025·0 cites·19 claims
- 3791US10712706B2Developing cartridgeBROTHER IND LTD·Filed 2019·Granted Jul 14, 2020·1 cites·21 claims
- 3891US9720347B2Image forming apparatus and developing cartridgeBROTHER IND LTD·Filed 2016·Granted Aug 1, 2017·2 cites·10 claims
- 3991US9217988B2Developing cartridgeBROTHER IND LTD·Filed 2014·Granted Dec 22, 2015·4 cites·13 claims
- 4091US8693914B2Developing cartridgeSATO SHOUGO·Filed 2012·Granted Apr 8, 2014·3 cites·39 claims
- 4190US8643690B2Developer cartridge for image-forming deviceTAKAGI TAKEYUKI·Filed 2010·Granted Feb 4, 2014·4 cites·10 claims
- 4290US7941072B2CartridgeBROTHER IND LTD·Filed 2008·Granted May 10, 2011·11 cites·7 claims
- 4390US7446757B2Foldable display, input device provided with the display and foldable keyboard, and personal computer provided with the input deviceBROTHER IND LTD·Filed 2003·Granted Nov 4, 2008·64 cites·29 claims
- 4489US8873993B2Developing cartridgeBROTHER IND LTD·Filed 2013·Granted Oct 28, 2014·2 cites·9 claims
- 4589US8798492B2Developing cartridgeBROTHER IND LTD·Filed 2013·Granted Aug 5, 2014·2 cites·50 claims
- 4688US8023864B2Toner cartridge and developing apparatusBROTHER IND LTD·Filed 2008·Granted Sep 20, 2011·9 cites·27 claims
- 4788US7196692B2Input device provided with windable display and foldable keyboard, and personal computer provided with the input deviceBROTHER IND LTD·Filed 2003·Granted Mar 27, 2007·34 cites·16 claims
- 4887USD652862SToner cartridgeMORI HIROKI·Filed 2010·Granted Jan 24, 2012·37 cites·1 claims
- 4987US5463195AKey switchBROTHER IND LTD·Filed 1993·Granted Oct 31, 1995·47 cites·20 claims
- 5086US11988988B2Developing cartridgeBROTHER IND LTD·Filed 2022·Granted May 21, 2024·0 cites·13 claims
Showing the top 50 of 104 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →