Inventor · disambiguated record
Tadashi Kamagata
Also filed as: KAMAGATA TADASHI
11 granted patents·3 pending applications·84 citations·filing 1998–2011
89Inventor score
Top patents by PatentIndex Score
14 records- 0178US6776829B2Water-based ink composition for writing utensilMITSUBISHI PENCIL CO·Filed 2001·Granted Aug 17, 2004·15 cites·8 claims
- 0265US6491747B2Water based ink composition for writing instrumentMITSUBISHI PENCIL CO·Filed 2001·Granted Dec 10, 2002·6 cites·7 claims
- 0360US6492435B1Water based white color tone pigment ink for ball point penMITSUBISHI PENCIL CO·Filed 1999·Granted Dec 10, 2002·20 cites·4 claims
- 0455US6471759B2Water based ink composition for writing instrumentMITSUBISHI PENCIL CO·Filed 2001·Granted Oct 29, 2002·2 cites·1 claims
- 0555US2009049625A1Coloring composition and coloring methodMITSUBISHI PENCIL CO·Filed 2006·Application pending·0 cites
- 0652US6554890B2Water based ink composition for writing instrumentMITSUBISHI PENCIL CO·Filed 2001·Granted Apr 29, 2003·1 cites·2 claims
- 0750US6451099B1Water based ink composition for ball point penMITSUBISHI PENCIL CO·Filed 1998·Granted Sep 17, 2002·13 cites·6 claims
- 0850US2010297901A1Coloring composition for preventing see-through of cloth, coloring method using the coloring composition and cloth whose back is coloredMITSUBISHI PENCIL CO·Filed 2007·Application pending·0 cites
- 0949US6312510B1Water-base white pigment ink for ballpointsMITSUBISHI PENCIL CO·Filed 1998·Granted Nov 6, 2001·13 cites·4 claims
- 1049US2011297305A1Coloring composition and coloring methodMIYAMOTO MASARU·Filed 2011·Application pending·0 cites
- 1134US6599352B1Water-based ink composition for writing instrumentMITSUBISHI PENCIL CO·Filed 1999·Granted Jul 29, 2003·4 cites·2 claims
- 1233US6376560B1Ink follower for water-base ballpoint pens and method of manufacturing the sameMITSUBISHI PENCIL KABUSHIKIKAI·Filed 1998·Granted Apr 23, 2002·4 cites·21 claims
- 1333US6227738B1Method of manufacturing ink follower for water-base ballpoint pensMITSUBISHI PENCIL KABUSHIKIKAI·Filed 1998·Granted May 8, 2001·3 cites·38 claims
- 1431US6391927B1Method for manufacturing ink follower for water base ballpoint pensMITSUBISHI PENCIL CO·Filed 1998·Granted May 21, 2002·3 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →