EO

Eiichi Okabe

PK Pentel Kabushiki Kaisha: 1 patents #76 of 170Top 45%
📍 Koshigaya, JP: #130 of 242 inventorsTop 55%
Overall (All Time): #3,786,384 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5474603 Aqueous metallic ink for ball-point pen Hiroshi Miyashita, Sachiko Matsuda 1995-12-12