Inventor · disambiguated record
Takashi Matsui
Also filed as: MATSUI TAKASHI
177 granted patents·60 pending applications·2,472 citations·filing 1973–2025
99Inventor score
Files withNIPPON TELEGRAPH & TELEPHONE63CANON KK58MATSUI TAKASHI12SHARP KK11SUMITOMO ELECTRIC INDUSTRIES11
Top patents by PatentIndex Score
237 records- 0199US9097997B2Magnetic tonerCANON KK·Filed 2013·Granted Aug 4, 2015·54 cites·3 claims
- 0298US11287758B2Toner and method for producing tonerCANON KK·Filed 2020·Granted Mar 29, 2022·11 cites·12 claims
- 0398US11262666B2Positive-charging tonerCANON KK·Filed 2020·Granted Mar 1, 2022·10 cites·10 claims
- 0498US10976506B2Optical transceiverSUMITOMO ELECTRIC INDUSTRIES·Filed 2020·Granted Apr 13, 2021·9 cites·7 claims
- 0598US10732530B2Toner and method for producing tonerCANON KK·Filed 2019·Granted Aug 4, 2020·26 cites·8 claims
- 0698US10197934B2Toner, developing apparatus, and image-forming apparatus provided with tonerCANON KK·Filed 2017·Granted Feb 5, 2019·46 cites·15 claims
- 0798US10156800B2Toner, developing device, and image forming apparatusCANON KK·Filed 2017·Granted Dec 18, 2018·31 cites·12 claims
- 0898US10012919B2Toner, developing apparatus, and image-forming apparatusCANON KK·Filed 2017·Granted Jul 3, 2018·33 cites·14 claims
- 0998US9904195B2Toner, image forming apparatus, and image forming methodCANON KK·Filed 2017·Granted Feb 27, 2018·31 cites·7 claims
- 1098US9857707B2TonerCANON KK·Filed 2015·Granted Jan 2, 2018·37 cites·11 claims
- 1198US9658546B2Toner and method of producing tonerCANON KK·Filed 2015·Granted May 23, 2017·42 cites·11 claims
- 1298US9442416B2Image-forming apparatus, image-forming method, developing apparatus, and developing methodCANON KK·Filed 2014·Granted Sep 13, 2016·47 cites·13 claims
- 1398US9354545B2Developing apparatus, developing method, image-forming apparatus, and image-forming methodCANON KK·Filed 2014·Granted May 31, 2016·45 cites·20 claims
- 1498US9348246B2Developing apparatus, developing method, image forming apparatus and image forming methodCANON KK·Filed 2014·Granted May 24, 2016·45 cites·8 claims
- 1598US9304422B2Magnetic tonerCANON KK·Filed 2014·Granted Apr 5, 2016·46 cites·4 claims
- 1698US9239528B2TonerCANON KK·Filed 2014·Granted Jan 19, 2016·56 cites·10 claims
- 1798US9217943B2Magnetic tonerCANON KK·Filed 2012·Granted Dec 22, 2015·43 cites·4 claims
- 1898US9213250B2TonerCANON KK·Filed 2013·Granted Dec 15, 2015·55 cites·6 claims
- 1998US8883389B2Developing apparatus and developing methodCANON KK·Filed 2012·Granted Nov 11, 2014·39 cites·5 claims
- 2098US8778585B2TonerMATSUI TAKASHI·Filed 2011·Granted Jul 15, 2014·61 cites·10 claims
- 2198US8614044B2TonerMATSUI TAKASHI·Filed 2011·Granted Dec 24, 2013·66 cites·7 claims
- 2298US7935467B2Magnetic tonerCANON KK·Filed 2008·Granted May 3, 2011·49 cites·6 claims
- 2398US7923190B2TonerCANON KK·Filed 2009·Granted Apr 12, 2011·49 cites·8 claims
- 2498US7678523B2Magnetic tonerCANON KK·Filed 2008·Granted Mar 16, 2010·54 cites·6 claims
- 2597US11369526B2Disposable diaperUNICHARM CORP·Filed 2020·Granted Jun 28, 2022·8 cites·13 claims
- 2697US11181844B2Toner and method of producing tonerCANON KK·Filed 2020·Granted Nov 23, 2021·21 cites·17 claims
- 2797US10969705B2Two-component developerCANON KK·Filed 2019·Granted Apr 6, 2021·23 cites·23 claims
- 2897US10877388B2TonerCANON KK·Filed 2019·Granted Dec 29, 2020·16 cites·9 claims
- 2997US10859931B2Toner and two-component developerCANON KK·Filed 2019·Granted Dec 8, 2020·23 cites·4 claims
- 3097US10656545B2Toner and method for producing tonerCANON KK·Filed 2019·Granted May 19, 2020·32 cites·20 claims
- 3197US10241430B2Toner, and external additive for tonerCANON KK·Filed 2018·Granted Mar 26, 2019·36 cites·4 claims
- 3297US9581934B2Developing apparatus, developing method, image forming apparatus, and image forming methodCANON KK·Filed 2014·Granted Feb 28, 2017·22 cites·12 claims
- 3397US9442419B2Developing apparatus, developing method, image forming apparatus, and image forming methodCANON KK·Filed 2014·Granted Sep 13, 2016·22 cites·6 claims
- 3497US9213150B2Optical coupling apparatus and optical transceiver installing the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2014·Granted Dec 15, 2015·52 cites·17 claims
- 3597US8426094B2Magnetic tonerMAGOME MICHIHISA·Filed 2011·Granted Apr 23, 2013·60 cites·4 claims
- 3696US11314025B2Optical transceiverSUMITOMO ELECTRIC INDUSTRIES·Filed 2021·Granted Apr 26, 2022·4 cites·9 claims
- 3796US10877389B2TonerCANON KK·Filed 2019·Granted Dec 29, 2020·16 cites·13 claims
- 3896US10732529B2Positive-charging tonerCANON KK·Filed 2019·Granted Aug 4, 2020·17 cites·12 claims
- 3996US8841054B2Image-forming method, magnetic toner, and process unitDOJO TADASHI·Filed 2008·Granted Sep 23, 2014·42 cites·8 claims
- 4096US8426091B2Magnetic toner and image-forming methodMAGOME MICHIHISA·Filed 2008·Granted Apr 23, 2013·45 cites·5 claims
- 4196US7842446B2TonerCANON KK·Filed 2005·Granted Nov 30, 2010·28 cites·11 claims
- 4295US11112709B2Toner and toner manufacturing methodCANON KK·Filed 2019·Granted Sep 7, 2021·12 cites·16 claims
- 4395US10969704B2Magnetic toner and method for manufacturing magnetic tonerCANON KK·Filed 2019·Granted Apr 6, 2021·14 cites·19 claims
- 4495US8227162B2Magnetic tonerSANO TOMOHISA·Filed 2010·Granted Jul 24, 2012·42 cites·9 claims
- 4594US4704510AContainers for food serviceFUKUYAMA PEARL SHIKO KABUSHIKI·Filed 1986·Granted Nov 3, 1987·155 cites·6 claims
- 4693US11762144B2Multicore optical fiber and design methodNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Sep 19, 2023·3 cites·8 claims
- 4793US11448980B2TonerCANON KK·Filed 2020·Granted Sep 20, 2022·4 cites·12 claims
- 4892US11687332B2Communication apparatus for wirelessly communicating with another apparatus, information processing method, and programCANON KK·Filed 2021·Granted Jun 27, 2023·2 cites·42 claims
- 4992US9871590B2Optical transceiver implementing erbium doped fiber amplifierSUMITOMO ELECTRIC INDUSTRIES·Filed 2015·Granted Jan 16, 2018·10 cites·12 claims
- 5090US12158607B2Propagation mode loss difference compensatorNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Dec 3, 2024·3 cites·11 claims
Showing the top 50 of 237 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →