Assignee
KOTOBUKI & CO LTD
JP·295 granted patents·15 pending applications·4,679 citations·filing 1977–2024
Top patents by PatentIndex Score
310 records- 0198US6227739B1Liquid containerKOTOBUKI & CO LTD·Filed 2000·Granted May 8, 2001·64 cites·15 claims
- 0297USD338039SWriting instrumentKOTOBUKI & CO LTD·Filed 1992·Granted Aug 3, 1993·67 cites·1 claims
- 0396USD444498SWriting instrumentKOTOBUKI & CO LTD·Filed 2000·Granted Jul 3, 2001·71 cites·1 claims
- 0496USD394455SWriting instrumentKOTOBUKI & CO LTD·Filed 1997·Granted May 19, 1998·59 cites·1 claims
- 0596USD355673SWriting instrumentKOTOBUKI & CO LTD·Filed 1993·Granted Feb 21, 1995·62 cites·1 claims
- 0695USD453187SWriting instrumentKOTOBUKI & CO LTD·Filed 2001·Granted Jan 29, 2002·61 cites·1 claims
- 0795USD452274SWriting instrumentKOTOBUKI & CO LTD·Filed 2001·Granted Dec 18, 2001·52 cites·1 claims
- 0895USD436996SWriting instrumentKOTOBUKI & CO LTD·Filed 1999·Granted Jan 30, 2001·54 cites·1 claims
- 0995USD410682SWriting instrumentKOTOBUKI & CO LTD·Filed 1998·Granted Jun 8, 1999·53 cites·1 claims
- 1094USD491983SWriting instrumentKOTOBUKI & CO LTD·Filed 2003·Granted Jun 22, 2004·52 cites·1 claims
- 1194USD412014SWriting instrumentKOTOBUKI & CO LTD·Filed 1998·Granted Jul 13, 1999·43 cites·1 claims
- 1294USD408057SWriting instrumentKOTOBUKI & CO LTD·Filed 1998·Granted Apr 13, 1999·51 cites·1 claims
- 1393USD441015SWriting instrumentKOTOBUKI & CO LTD·Filed 1999·Granted Apr 24, 2001·44 cites·1 claims
- 1493USD418871SWriting instrumentKOTOBUKI & CO LTD·Filed 1999·Granted Jan 11, 2000·46 cites·1 claims
- 1593USD397723SWriting instrumentKOTOBUKI & CO LTD·Filed 1997·Granted Sep 1, 1998·46 cites·1 claims
- 1693USD382016SWriting instrumentKOTOBUKI & CO LTD·Filed 1996·Granted Aug 5, 1997·49 cites·1 claims
- 1792US8970560B2Writing instrumentKOTOBUKI & CO LTD·Filed 2013·Granted Mar 3, 2015·8 cites·20 claims
- 1892USD417891SWriting instrumentKOTOBUKI & CO LTD·Filed 1998·Granted Dec 21, 1999·42 cites·1 claims
- 1992USD410030SWriting instrumentKOTOBUKI & CO LTD·Filed 1998·Granted May 18, 1999·75 cites·1 claims
- 2092USD402693SWriting instrumentKOTOBUKI & CO LTD·Filed 1998·Granted Dec 15, 1998·67 cites·1 claims
- 2192USD397150SWriting instrumentKOTOBUKI & CO LTD·Filed 1997·Granted Aug 18, 1998·42 cites·1 claims
- 2292USD377664SWriting instrumentKOTOBUKI & CO LTD·Filed 1996·Granted Jan 28, 1997·42 cites·1 claims
- 2391USD487773SWriting instrumentKOTOBUKI & CO LTD·Filed 2003·Granted Mar 23, 2004·43 cites·1 claims
- 2491USD460485SKnock-type painting implementKOTOBUKI & CO LTD·Filed 2001·Granted Jul 16, 2002·45 cites·1 claims
- 2591USD450347SWriting instrumentKOTOBUKI & CO LTD·Filed 2001·Granted Nov 13, 2001·38 cites·1 claims
- 2691USD445131SWriting instrumentKOTOBUKI & CO LTD·Filed 2000·Granted Jul 17, 2001·44 cites·1 claims
- 2791US6206595B1Writing utensilKOTOBUKI & CO LTD·Filed 1999·Granted Mar 27, 2001·41 cites·60 claims
- 2891USD431262SWriting instrumentKOTOBUKI & CO LTD·Filed 1999·Granted Sep 26, 2000·38 cites·1 claims
- 2991USD410681SWriting instrumentKOTOBUKI & CO LTD·Filed 1998·Granted Jun 8, 1999·38 cites·1 claims
- 3091USD394875SWriting instrumentKOTOBUKI & CO LTD·Filed 1997·Granted Jun 2, 1998·40 cites·1 claims
- 3191USD390872SCombined computer input pen and writing instrument with cap member thereforKOTOBUKI & CO LTD·Filed 1997·Granted Feb 17, 1998·62 cites·1 claims
- 3290USD463822SWriting instrumentKOTOBUKI & CO LTD·Filed 2001·Granted Oct 1, 2002·40 cites·1 claims
- 3390USD460112SWriting instrumentKOTOBUKI & CO LTD·Filed 2001·Granted Jul 9, 2002·41 cites·1 claims
- 3490USD366902SWriting instrumentKOTOBUKI & CO LTD·Filed 1995·Granted Feb 6, 1996·39 cites·1 claims
- 3589USD440605SFinger gripping device for a writing instrumentKOTOBUKI & CO LTD·Filed 2000·Granted Apr 17, 2001·38 cites·1 claims
- 3688USD402695SWriting instrumentKOTOBUKI & CO LTD·Filed 1998·Granted Dec 15, 1998·33 cites·1 claims
- 3787USD500519SWriting instrumentKOTOBUKI & CO LTD·Filed 2004·Granted Jan 4, 2005·33 cites·1 claims
- 3887USD391294SCap for a writing instrumentKOTOBUKI & CO LTD·Filed 1997·Granted Feb 24, 1998·32 cites·1 claims
- 3986US7080949B1Composite writing utensilKOTOBUKI & CO LTD·Filed 2005·Granted Jul 25, 2006·10 cites·8 claims
- 4086US5997200ABarrel with finger gripping meansKOTOBUKI & CO LTD·Filed 1999·Granted Dec 7, 1999·28 cites·8 claims
- 4186USD366062SWriting instrumentKOTOBUKI & CO LTD·Filed 1995·Granted Jan 9, 1996·30 cites·1 claims
- 4286US4795073AStapler with detachable staple holderKOTOBUKI & CO LTD·Filed 1986·Granted Jan 3, 1989·51 cites·6 claims
- 4385USD430212SCap for a writing instrumentKOTOBUKI & CO LTD·Filed 2000·Granted Aug 29, 2000·31 cites·1 claims
- 4485USD411237SGlue penKOTOBUKI & CO LTD·Filed 1998·Granted Jun 22, 1999·27 cites·1 claims
- 4585USD409661SCap for a writing instrumentKOTOBUKI & CO LTD·Filed 1998·Granted May 11, 1999·28 cites·1 claims
- 4685US5547301AWriting instrument with rotatable advancement and retractionKOTOBUKI & CO LTD·Filed 1995·Granted Aug 20, 1996·29 cites·20 claims
- 4785US4200977ACutter knifeKOTOBUKI & CO LTD·Filed 1978·Granted May 6, 1980·47 cites·5 claims
- 4884US11390109B2Mechanical pencilKOTOBUKI & CO LTD·Filed 2019·Granted Jul 19, 2022·2 cites·10 claims
- 4984USD602089SCap for a writing instrumentKOTOBUKI & CO LTD·Filed 2009·Granted Oct 13, 2009·29 cites·1 claims
- 5084USD431599SWriting instrumentKOTOBUKI & CO LTD·Filed 1999·Granted Oct 3, 2000·26 cites·1 claims
Showing the top 50 of 310 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when KOTOBUKI & CO LTD files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →