Inventor · disambiguated record
Katsunori Kitazawa
Also filed as: KITAZAWA KATSUNORI
9 granted patents·75 citations·filing 1993–2015
86Inventor score
Top patents by PatentIndex Score
9 records- 0174US5595700ANon-baked color pencil leads and method for preparing sameMITSUBISHI PENCIL CO·Filed 1994·Granted Jan 21, 1997·34 cites·13 claims
- 0265US9090784B2Solid drawing material and solid drawing toolKITAZAWA KATSUNORI·Filed 2011·Granted Jul 28, 2015·2 cites·13 claims
- 0362US6746524B1Process for producing sintered color pencil leadMITSUBISHI PENCIL CO·Filed 2000·Granted Jun 8, 2004·6 cites·8 claims
- 0450US5318622ANon-baked color pencil leads and method for preparing sameMITSUBISHI PENCIL CO·Filed 1993·Granted Jun 7, 1994·13 cites·8 claims
- 0549US8349063B2Pencil lead and production process for the sameMITSUBISHI PENCIL CO·Filed 2010·Granted Jan 8, 2013·0 cites·46 claims
- 0643US5645629ACalcined pencil leads and method of manufacturing the sameMITSUBISHI PENCIL CO·Filed 1995·Granted Jul 8, 1997·10 cites·12 claims
- 0740US10023756B2Solid drawing materialMITSUBISHI PENCIL CO·Filed 2015·Granted Jul 17, 2018·0 cites·6 claims
- 0839US5911814ABaked color pencil lead and process for producing the sameMITSUBISHI PENCIL CO·Filed 1998·Granted Jun 15, 1999·6 cites·4 claims
- 0932US6645279B1Baked colored pencil lead and process for producing the sameMITSUBISHI PENCIL CO·Filed 1999·Granted Nov 11, 2003·4 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →