MK

Masanobu Kiritake

ML Mitsubishi Pencil Company, Limited: 1 patents #181 of 302Top 60%
Overall (All Time): #3,204,367 of 4,157,543Top 80%
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Patent #TitleCo-InventorsDate
8162554 Writing implement Kazuhiko Furukawa, Kengo Nagaoka 2012-04-24