Inventor · disambiguated record
Hidetoshi Fukuo
Also filed as: FUKUO HIDETOSHI
18 granted patents·3 pending applications·174 citations·filing 1984–2014
93Inventor score
Top patents by PatentIndex Score
21 records- 0184US4620941AThermochromic compositionsSAKURA COLOR PROD CORP·Filed 1984·Granted Nov 4, 1986·52 cites·4 claims
- 0277US6730154B2Polychromic ink composition depending on viewing angleSAKURA COLOR PROD CORP·Filed 2001·Granted May 4, 2004·22 cites·37 claims
- 0376US4605441AInk composition for indicating progress and completion of vulcanization of rubber productsSAKURA COLOR PROD CORP·Filed 1984·Granted Aug 12, 1986·26 cites·10 claims
- 0475US7208036B2Water-based pigment-containing ink composition for central core type marking penSAKURA COLOR PROD CORP·Filed 2002·Granted Apr 24, 2007·15 cites·10 claims
- 0571US9683118B2Oil-based pigment ink composition and oil-based pigment ink writing toolSAKURA COLOR PROD CORP·Filed 2014·Granted Jun 20, 2017·2 cites·17 claims
- 0665US7291210B2Solid drawing material and method for producing the sameSAKURA COLOR PROD CORP·Filed 2005·Granted Nov 6, 2007·1 cites·10 claims
- 0763US8431632B2CrayonSUMITOMO KOTARO·Filed 2008·Granted Apr 30, 2013·1 cites·8 claims
- 0860US7396400B2Water base erasable ink composition for use in marking pensSAKURA COLOR PROD CORP·Filed 2004·Granted Jul 8, 2008·6 cites·8 claims
- 0956US6203910B1CrayonSAKURA COLOR PROD CORP·Filed 1997·Granted Mar 20, 2001·16 cites·6 claims
- 1054US7384459B2CrayonSAKURA COLOR PROD CORP·Filed 2005·Granted Jun 10, 2008·0 cites·7 claims
- 1153US7943684B2Process for production of black crayonSAKURA COLOR PROD CORP·Filed 2007·Granted May 17, 2011·0 cites·7 claims
- 1251US4753759AMicrocapsule manufactureSAKURA COLOR PROD CORP·Filed 1986·Granted Jun 28, 1988·13 cites·12 claims
- 1349US8299143B2Crayon and process for producing the sameSUMITOMO KOTARO·Filed 2007·Granted Oct 30, 2012·0 cites·8 claims
- 1449US8242190B2Crayon and process for producing the sameSUMITOMO KOTARO·Filed 2007·Granted Aug 14, 2012·0 cites·6 claims
- 1548US6074465AFluorescent crayonSAKURA COLOR PROD CORP·Filed 1998·Granted Jun 13, 2000·11 cites·5 claims
- 1648US2009209678A1CrayonSAKURA COLOR PROD CORP·Filed 2007·Application pending·0 cites
- 1742US7297732B2Solid compositionSAKURA COLOR PROD CORP·Filed 2001·Granted Nov 20, 2007·1 cites·20 claims
- 1839US6039795AInk composition for oil marking penSAKURA COLOR PROD CORP·Filed 1997·Granted Mar 21, 2000·8 cites·19 claims
- 1938US2005197423A1Photostorage solid drawing mediumFiled 2004·Application pending·0 cites
- 2035US2008155886A1Insect-Repellant Utensil and Process For Production ThereofOKUDA NORIMASA·Filed 2006·Application pending·0 cites
- 2129US7485406B2Photostorage solid drawing mediumSAKURA COLOR PROD CORP·Filed 2006·Granted Feb 3, 2009·0 cites·10 claims
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