Inventor · disambiguated record
Yasunori Nakatani
Also filed as: NAKATANI YASUNORI
12 granted patents·2 pending applications·105 citations·filing 1990–2011
91Inventor score
Top patents by PatentIndex Score
14 records- 0182US8080098B2Water-based ink compositionKURIHARA NORIMASA·Filed 2005·Granted Dec 20, 2011·7 cites·16 claims
- 0281US6422776B1Ball-point pen and a penpoint tip thereinSAKURA COLOR PROD CORP·Filed 2000·Granted Jul 23, 2002·19 cites·15 claims
- 0379US6299376B1Ball-point penSAKURA COLOR PROD CORP·Filed 2000·Granted Oct 9, 2001·17 cites·15 claims
- 0471US8292534B2Liquid applicatorNAKATANI YASUNORI·Filed 2006·Granted Oct 23, 2012·5 cites·11 claims
- 0560US8651762B2Tip unit for liquid applicator and liquid applicatorNAKATANI YASUNORI·Filed 2009·Granted Feb 18, 2014·2 cites·13 claims
- 0660US5022775AWriting inplement with magnetic closureSAKURA COLOR PROD CORP·Filed 1990·Granted Jun 11, 1991·21 cites·29 claims
- 0759US7914222B2Tip unit for liquid applicator, method for producing the same, and liquid applicator having the tip unitSAKURA COLOR PROD CORP·Filed 2004·Granted Mar 29, 2011·5 cites·11 claims
- 0859US7721402B2Method of producing applicator tipSAKURA COLOR PROD CORP·Filed 2004·Granted May 25, 2010·3 cites·19 claims
- 0959US7538148B2Aqueous ink compositionSAKURA COLOR PROD CORP·Filed 2004·Granted May 26, 2009·5 cites·18 claims
- 1049US6332728B1Ball for ball-point penSAKURA COLOR PROD CORP·Filed 1999·Granted Dec 25, 2001·9 cites·5 claims
- 1147US6283662B1Ink applicator, ink backflow prevention mechanism of ink applicator, and a pen tipSAKURA COLOR PROD CORP·Filed 1998·Granted Sep 4, 2001·9 cites·29 claims
- 1245US2007196160A1Tips for ball-point pens, roller ball pens or gel ink roller ball pensSAKURA COLOR PROD CORP·Filed 2005·Application pending·0 cites
- 1341US2013004231A1ApplicatorNAKATANI YASUNORI·Filed 2011·Application pending·0 cites
- 1432US6706101B1Double-color ink and writing utensil containing the sameSAKURA COLOR PROD CORP·Filed 1999·Granted Mar 16, 2004·3 cites·31 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →