KM

Keiko Matsushita

Canon: 2 patents #12,681 of 19,416Top 70%
Overall (All Time): #2,309,203 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5112707 Mask structure for lithography Hideo Kato, Hirohumi Shibata, Osamu Takamatsu 1992-05-12
4956249 Mask structure for lithography Hideo Kato, Hirohumi Shibata, Osamu Takamatsu 1990-09-11