DK

Daisen Katou

ML Mitsubishi Pencil Company, Limited: 1 patents #181 of 302Top 60%
Overall (All Time): #3,459,053 of 4,157,543Top 85%
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6945726 Refill for oil-based ink ballpoint pen and oil-based ink ballpoint pen Syuji Ichikawa, Takayuki Ikai, Miyuki Shouji, Takeshi Kobayashi 2005-09-20