SY

Shoto Yokoyama

PK Pentel Kabushiki Kaisha: 2 patents #40 of 170Top 25%
Overall (All Time): #2,025,094 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D724669 Mechanical pencil Hidekazu Nakazawa 2015-03-17
D724670 Mechanical pencil — 2015-03-17