The report contains ten-year analysis with the following sections
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pilot corporation | 295 |
seitai kagaku kenkyusho | 1 |
Title of patent family (most common patent title) |
Family members |
Filing year |
---|---|---|
thermally changeable color writing tool | 52 | 2007 |
writing tool | 49 | 2010 |
reversibly thermochromic aqueous ink composition, and writing instrument and writing ins… 🛈 | 17 | 2009 |
wrtiting implement and ink cartridge | 15 | 2013 |
writing instrument and ink cartridge | 14 | 2013 |
reversible thermal discoloration aqueous ink composition and writing implement using the… 🛈 | 14 | 2008 |
oil-based ink composition for ballpoint pen and oil-based refill for ballpoint pen using… 🛈 | 13 | 2012 |
rotary operated writing instrument | 13 | 2012 |
rotary operated writing instrument | 13 | 2012 |
electrophotographic toner and method for producing the same | 12 | 2010 |