MY

Masanao Yano

ML Mitsubishi Pencil Company, Limited: 3 patents #97 of 302Top 35%
Overall (All Time): #1,546,607 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8562235 Ink composition for aqueous ink ball point pen and aqueous ink ball point pen Hideaki Toomi, Takeshi Hayakawa, Syuji Ichikawa 2013-10-22
7417080 Oil-based ink composition and writing instrument using the same Yoshihito Fujiwara, Tadashi Koriki, Yuji Omori, Naoto Yokokawa 2008-08-26
5702512 Oil ink composition Takeshi Yadoiwa, Chie Yanase 1997-12-30