Assignee
MITSUBISHI PENCIL CO
JP·514 granted patents·90 pending applications·6,215 citations·filing 1976–2025
Top patents by PatentIndex Score
604 records- 0197USD497643SBallpoint penMITSUBISHI PENCIL CO·Filed 2003·Granted Oct 26, 2004·79 cites·1 claims
- 0297USD404426SBall-point penMITSUBISHI PENCIL CO·Filed 1998·Granted Jan 19, 1999·82 cites·1 claims
- 0396USD463821SBall-point penMITSUBISHI PENCIL CO·Filed 2001·Granted Oct 1, 2002·71 cites·1 claims
- 0495USD460179SSyringe needle for catheterMITSUBISHI PENCIL CO·Filed 2001·Granted Jul 9, 2002·69 cites·1 claims
- 0595US5993098AAqueous gel ink-filled ball point penMITSUBISHI PENCIL CO·Filed 1997·Granted Nov 30, 1999·57 cites·8 claims
- 0694USD482724SBallpoint penMITSUBISHI PENCIL CO·Filed 2002·Granted Nov 25, 2003·56 cites·1 claims
- 0794USD452526SBall-point penMITSUBISHI PENCIL CO·Filed 2001·Granted Dec 25, 2001·56 cites·1 claims
- 0894US5871296AClicking-type writing implementMITSUBISHI PENCIL CO·Filed 1996·Granted Feb 16, 1999·53 cites·9 claims
- 0993US9545813B2Ball penMITSUBISHI PENCIL CO·Filed 2013·Granted Jan 17, 2017·9 cites·8 claims
- 1093USD483066SBallpoint penMITSUBISHI PENCIL CO·Filed 2002·Granted Dec 2, 2003·50 cites·1 claims
- 1193USD461501SBall-point penMITSUBISHI PENCIL CO·Filed 2001·Granted Aug 13, 2002·52 cites·1 claims
- 1293US4412675ACarbon spring and process for preparing the sameMITSUBISHI PENCIL CO·Filed 1981·Granted Nov 1, 1983·61 cites·13 claims
- 1392USD496688SPenMITSUBISHI PENCIL CO·Filed 2004·Granted Sep 28, 2004·45 cites·1 claims
- 1492USD483067SBallpoint penMITSUBISHI PENCIL CO·Filed 2002·Granted Dec 2, 2003·47 cites·1 claims
- 1592USD453790SBall-point pen with a mechanical pencilMITSUBISHI PENCIL CO·Filed 2001·Granted Feb 19, 2002·59 cites·1 claims
- 1692USD325264SCombined cosmetic applicator and capMITSUBISHI PENCIL CO·Filed 1989·Granted Apr 7, 1992·48 cites·1 claims
- 1792USD313245SMarking penMITSUBISHI PENCIL CO·Filed 1987·Granted Dec 25, 1990·50 cites·1 claims
- 1892US4109398AConstruction type educational and amusement deviceMITSUBISHI PENCIL CO·Filed 1976·Granted Aug 29, 1978·68 cites·28 claims
- 1991US7802936B1Mechanical pencilMITSUBISHI PENCIL CO·Filed 2008·Granted Sep 28, 2010·16 cites·7 claims
- 2091USD306354SCombined cosmetic applicator with capMITSUBISHI PENCIL CO·Filed 1987·Granted Feb 27, 1990·36 cites·1 claims
- 2190US12466210B2Shaft body of pencil or cosmeticMITSUBISHI PENCIL CO·Filed 2022·Granted Nov 11, 2025·2 cites·11 claims
- 2290US12369699B2Cosmetic applicatorMITSUBISHI PENCIL CO·Filed 2023·Granted Jul 29, 2025·1 cites·4 claims
- 2390US10336129B2Writing implementMITSUBISHI PENCIL CO·Filed 2015·Granted Jul 2, 2019·4 cites·4 claims
- 2490USD509536SBallpoint penMITSUBISHI PENCIL CO·Filed 2004·Granted Sep 13, 2005·39 cites·1 claims
- 2590USD454588SBall-point penMITSUBISHI PENCIL CO·Filed 2001·Granted Mar 19, 2002·42 cites·1 claims
- 2690USD450769SMechanical pencilMITSUBISHI PENCIL CO·Filed 2001·Granted Nov 20, 2001·42 cites·1 claims
- 2790US6048914AInk composition for writing instrumentMITSUBISHI PENCIL CO·Filed 1998·Granted Apr 11, 2000·67 cites·4 claims
- 2889US11780258B2Liquid storage member for coating toolsMITSUBISHI PENCIL CO·Filed 2020·Granted Oct 10, 2023·3 cites·7 claims
- 2989USD357699SFelt pen with an eraser at the tip of the capMITSUBISHI PENCIL CO·Filed 1993·Granted Apr 25, 1995·33 cites·1 claims
- 3089USD306355SCombined cosmetic applicator and capMITSUBISHI PENCIL CO·Filed 1987·Granted Feb 27, 1990·36 cites·1 claims
- 3188US11679618B2Ink reservoir unit for writing instruments and writing instrumentsMITSUBISHI PENCIL CO·Filed 2020·Granted Jun 20, 2023·2 cites·8 claims
- 3288US7654763B2Mechanical pencilMITSUBISHI PENCIL CO·Filed 2007·Granted Feb 2, 2010·10 cites·12 claims
- 3388USD497950SBallpoint penMITSUBISHI PENCIL CO·Filed 2004·Granted Nov 2, 2004·35 cites·1 claims
- 3488US6488945B2Liquid cosmeticMITSUBISHI PENCIL CO·Filed 2001·Granted Dec 3, 2002·26 cites·4 claims
- 3587US9889701B2Writing implementMITSUBISHI PENCIL CO·Filed 2015·Granted Feb 13, 2018·3 cites·4 claims
- 3687US9409438B2Writing instrument with erasing memberMITSUBISHI PENCIL CO·Filed 2012·Granted Aug 9, 2016·5 cites·4 claims
- 3787US7503939B2Hair colorMITSUBISHI PENCIL CO·Filed 2005·Granted Mar 17, 2009·4 cites·12 claims
- 3887US6234619B1Ink cartridgeMITSUBISHI PENCIL CO·Filed 2000·Granted May 22, 2001·85 cites·3 claims
- 3987US6099629AWater based ink and water based pigment ink having metallic lustrous color for ballpoint penMITSUBISHI PENCIL CO·Filed 1997·Granted Aug 8, 2000·62 cites·22 claims
- 4087US5827002ALiquid applicatorMITSUBISHI PENCIL CO·Filed 1997·Granted Oct 27, 1998·57 cites·5 claims
- 4187US5348989AInk volatilization preventing composition for aqueous ball point penMITSUBISHI PENCIL CO·Filed 1993·Granted Sep 20, 1994·52 cites·5 claims
- 4287USD311550SMarking penMITSUBISHI PENCIL CO·Filed 1987·Granted Oct 23, 1990·28 cites·1 claims
- 4387US4764044ALiquid applicator with slidable pump mechanismMITSUBISHI PENCIL CO·Filed 1986·Granted Aug 16, 1988·59 cites·8 claims
- 4487USD260662SToy construction pieceMITSUBISHI PENCIL CO·Filed 1978·Granted Sep 8, 1981·25 cites·1 claims
- 4586US10569596B2Writing tool refill and writing tool using sameMITSUBISHI PENCIL CO·Filed 2016·Granted Feb 25, 2020·5 cites·8 claims
- 4686US9315672B2Colorant, microcapsule pigment prepared by using the same and ink composition for writing instrumentMITSUBISHI PENCIL CO·Filed 2012·Granted Apr 19, 2016·4 cites·6 claims
- 4786US5980624AOil base ink compositionMITSUBISHI PENCIL CO·Filed 1997·Granted Nov 9, 1999·53 cites·6 claims
- 4886USD306914SCombined cosmetic applicator and capMITSUBISHI PENCIL CO·Filed 1987·Granted Mar 27, 1990·30 cites·1 claims
- 4985US11084316B2ApplicatorMITSUBISHI PENCIL CO·Filed 2018·Granted Aug 10, 2021·3 cites·5 claims
- 5085US9856387B2Color pencil leadMITSUBISHI PENCIL CO·Filed 2015·Granted Jan 2, 2018·2 cites·8 claims
Showing the top 50 of 604 patent records by PatentIndex Score.
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