KM

Kanemasa Matsukuma

DC Daiso Co.: 2 patents #44 of 151Top 30%
Overall (All Time): #2,319,121 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5051488 Organic glass with high refractive index Yoshiharu Fujio 1991-09-24
4879363 Organic glass for optical parts Yoshiharu Fujio, Toshihiko Nishimoto 1989-11-07