Inventor · disambiguated record
Katsuhisa Nitta
Also filed as: NITTA KATSUHISA
18 granted patents·6 pending applications·408 citations·filing 1986–2022
95Inventor score
Top patents by PatentIndex Score
24 records- 0197US10647861B2α-alumina flakesMERCK PATENT GMBH·Filed 2014·Granted May 12, 2020·11 cites·22 claims
- 0294US6340723B1Highly orientated flaky pigment and a process for producing the sameMERCK PATENT GMBH·Filed 2000·Granted Jan 22, 2002·93 cites·6 claims
- 0390US7419538B2Highly anti-corrosive metal pigmentsMERCK PATENT GMBH·Filed 2002·Granted Sep 2, 2008·39 cites·25 claims
- 0488US5350448AElectrically conductive pigmentsMERCK PATENT GMBH·Filed 1993·Granted Sep 27, 1994·56 cites·9 claims
- 0587US11180659B2Alpha-alumina flakesMERCK PATENT GMBH·Filed 2019·Granted Nov 23, 2021·1 cites·19 claims
- 0685US11891542B2α-alumina flakesMERCK PATENT GMBH·Filed 2022·Granted Feb 6, 2024·0 cites·21 claims
- 0785US11891541B2Alpha-alumina flakesMERCK PATENT GMBH·Filed 2022·Granted Feb 6, 2024·0 cites·21 claims
- 0882US5456749AAnti-discoloring pearly luster pigment and method of preparing the sameMERCK PATENT GMBH·Filed 1993·Granted Oct 10, 1995·43 cites·16 claims
- 0982US5223034AWeather-resistant, pearlescent pigment and process for producing the same in the presence of hypophosphiteMERCK PATENT GMBH·Filed 1991·Granted Jun 29, 1993·33 cites·12 claims
- 1082US4828623AWater resistant nacreous pigment and process for producing the sameMERCK PATENT GMBH·Filed 1987·Granted May 9, 1989·34 cites·12 claims
- 1178US11142649B2α-alumina flakesMERCK PATENT GMBH·Filed 2019·Granted Oct 12, 2021·0 cites·20 claims
- 1277US6858072B1Surface-modified pearl pigment and process for producing the sameMERCK PATENT GMBH·Filed 2001·Granted Feb 22, 2005·15 cites·16 claims
- 1376US2020231828A1Alpha-alumina flakesMERCK PATENT GMBH·Filed 2020·Application pending·0 cites
- 1476US2020231827A1Alpha-alumina flakesMERCK PATENT GMBH·Filed 2020·Application pending·0 cites
- 1570US6929690B2Pigment with a metallic lusterMERCK PATENT GMBH·Filed 2002·Granted Aug 16, 2005·13 cites·20 claims
- 1670US5540769APlatelet-like colored pigments and process for producing the sameMERCK PATENT GMBH·Filed 1993·Granted Jul 30, 1996·32 cites·16 claims
- 1767US10457812B2α-alumina flakesMERCK PATENT GMBH·Filed 2014·Granted Oct 29, 2019·0 cites·23 claims
- 1866US5228911AOxidized graphite flaky particles and pigments based thereonMERCK PATENT GMBH·Filed 1992·Granted Jul 20, 1993·20 cites·14 claims
- 1958US7384664B2Positive-electrode active material for non-aqueous electrolyte secondary cell and process for preparing the sameMERCK PATENT GMBH·Filed 2003·Granted Jun 10, 2008·4 cites·6 claims
- 2057US4720438AMolded clay article coated with pearl pigmentMERCK PATENT GMBH·Filed 1986·Granted Jan 19, 1988·14 cites·17 claims
- 2146US2008314284A1Highly Anti-Corrosive Thin Platelet-Like Metal Pigments, Preparing Method of the Same, and Colored Interference Pigments Having Metallic Luster Based on the SameLI BANGYIN·Filed 2005·Application pending·0 cites
- 2244US2010045163A1Phosphor body containing ruby for white or colour-on-demand ledsWINKLER HOLGER·Filed 2007·Application pending·0 cites
- 2341US2006047018A1Interference colored pigments having metallic luster, the preparing method of the same, and use of the sameLI BANGYIN·Filed 2005·Application pending·0 cites
- 2437US2001046628A1Coated lithium mixed oxide particles and a process for producing themMERCK PATENT GMBH·Filed 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →