Inventor · disambiguated record
Katsuhiko Namba
Also filed as: NAMBA KATSUHIKO
6 granted patents·2 pending applications·34 citations·filing 1997–2003
80Inventor score
Files withSUMITOMO CHEMICAL CO6
Top patents by PatentIndex Score
8 records- 0167US6645692B2Photoresist compositionSUMITOMO CHEMICAL CO·Filed 2001·Granted Nov 11, 2003·10 cites·4 claims
- 0246US5849457APositive-working quinonediazide sulfonic acid ester resist composition utilizing solvent system including 2-heptanone, ethyl lactate, and γ-SUMITOMO CHEMICAL CO·Filed 1997·Granted Dec 15, 1998·12 cites·4 claims
- 0344US7144674B2Positive resist compositionSUMITOMO CHEMICAL CO·Filed 2003·Granted Dec 5, 2006·1 cites·8 claims
- 0443US6953651B2Chemical amplifying type positive resist compositionSUMITOMO CHEMICAL CO·Filed 2002·Granted Oct 11, 2005·5 cites·6 claims
- 0536US6762007B2Chemical amplification type positive resist compositionSUMITOMO CHEMICAL CO·Filed 2003·Granted Jul 13, 2004·3 cites·8 claims
- 0635US6696218B2Chemical amplification type positive resist compositionSUMITOMO CHEMICAL CO·Filed 2002·Granted Feb 24, 2004·3 cites·5 claims
- 0734US2002164540A1Chemical amplifying type positive resist compositionFiled 2002·Application pending·0 cites
- 0834US2004076902A1Chemical amplification type positive resist compositionFiled 2002·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →