Inventor · disambiguated record
Toshimi Kamitani
Also filed as: KAMITANI TOSHIMI
25 granted patents·3 pending applications·41 citations·filing 2002–2024
93Inventor score
Files withMITSUBISHI PENCIL CO21CASIO COMPUTER CO LTD2KAMITANI TOSHIMI2KABASAWA YASUNARI1MATSUDA YUGO1
Top patents by PatentIndex Score
28 records- 0193US8616797B2Thermosensitive decolorable ink compositionKAMITANI TOSHIMI·Filed 2010·Granted Dec 31, 2013·11 cites·8 claims
- 0284US11427027B2Writing implementMITSUBISHI PENCIL CO·Filed 2019·Granted Aug 30, 2022·2 cites·2 claims
- 0383US9566818B2Writing instrumentMITSUBISHI PENCIL CO·Filed 2015·Granted Feb 14, 2017·3 cites·2 claims
- 0482US7615305B2Fuel reservoir for fuel cellMITSUBISHI PENCIL CO·Filed 2005·Granted Nov 10, 2009·5 cites·15 claims
- 0580US12325255B2Writing instrumentMITSUBISHI PENCIL CO·Filed 2022·Granted Jun 10, 2025·0 cites·5 claims
- 0678US7771890B2Method of preventing leak of liquid fuelMITSUBISHI PENCIL CO·Filed 2009·Granted Aug 10, 2010·3 cites·14 claims
- 0777US7579096B2Fuel reservoir for fuel cellMITSUBISHI PENCIL CO·Filed 2005·Granted Aug 25, 2009·3 cites·16 claims
- 0874US9132692B2Writing instrumentKAMITANI TOSHIMI·Filed 2011·Granted Sep 15, 2015·3 cites·10 claims
- 0973US9636940B2Writing instrumentMITSUBISHI PENCIL CO·Filed 2013·Granted May 2, 2017·2 cites·2 claims
- 1071US7883815B2Fuel-storing tank for fuel cellMITSUBISHI PENCIL CO·Filed 2005·Granted Feb 8, 2011·2 cites·16 claims
- 1171US7687178B2Fuel containerCASIO COMPUTER CO LTD·Filed 2005·Granted Mar 30, 2010·2 cites·12 claims
- 1268US7951504B2Fuel cartridgeMITSUBISHI PENCIL CO·Filed 2007·Granted May 31, 2011·1 cites·17 claims
- 1368US7727657B2Fuel reservoir for fuel cellMITSUBISHI PENCIL CO·Filed 2005·Granted Jun 1, 2010·1 cites·6 claims
- 1465US12187068B2Fiber-bundled part for writing instruments, and pen tip and writing instrument using the fiber-bundled partMITSUBISHI PENCIL CO·Filed 2021·Granted Jan 7, 2025·0 cites·7 claims
- 1564US8173318B2Fuel reservoir for fuel cellOSADA TAKAHIRO·Filed 2005·Granted May 8, 2012·1 cites·15 claims
- 1662US12207722B2ApplicatorMITSUBISHI PENCIL CO·Filed 2024·Granted Jan 28, 2025·0 cites·4 claims
- 1760US12227024B2Writing implementMITSUBISHI PENCIL CO·Filed 2022·Granted Feb 18, 2025·0 cites·8 claims
- 1856US7837956B2Gas generation apparatusMITSUBISHI PENCIL CO·Filed 2008·Granted Nov 23, 2010·0 cites·8 claims
- 1955US2021316566A1Pen tip and writing tool equipped with the pen tipMITSUBISHI PENCIL CO·Filed 2019·Application pending·0 cites
- 2054US7909901B2Liquid cartridgeCASIO COMPUTER CO LTD·Filed 2007·Granted Mar 22, 2011·0 cites·9 claims
- 2151US7851106B2Fuel cartridgeMITSUBISHI PENCIL CO·Filed 2006·Granted Dec 14, 2010·0 cites·11 claims
- 2250US11148460B2Writing instrumentMITSUBISHI PENCIL CO·Filed 2017·Granted Oct 19, 2021·0 cites·9 claims
- 2349US11207913B2Erasing member and erasing tool using the sameMITSUBISHI PENCIL CO·Filed 2013·Granted Dec 28, 2021·0 cites·6 claims
- 2448US7063475B2Ink-storing body for writing utensilMITSUBISHI PENCIL CO·Filed 2002·Granted Jun 20, 2006·2 cites·16 claims
- 2548US2022324250A1Writing implementMITSUBISHI PENCIL CO·Filed 2020·Application pending·0 cites
- 2645US8820569B2Fuel container, fuel residual amount measurement device, and fuel residual amount measurement methodKABASAWA YASUNARI·Filed 2005·Granted Sep 2, 2014·0 cites·8 claims
- 2745US2007128492A1Fuel cell and fuel reservoir for fuel cellMITSUBISHI PENCIL CO·Filed 2005·Application pending·0 cites
- 2844US8435698B2Fuel containerMATSUDA YUGO·Filed 2007·Granted May 7, 2013·0 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Toshimi Kamitani 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 →