KI

Ken Ishihara

Sumitomo Electric Industries: 1 patents #327 of 1,127Top 30%
Overall (1989): #88,656 of 140,708Top 65%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4841341 Integrator for an exposure apparatus or the like Kazufumi Ogawa, Masaru Sasago, Masayuki Endo 1989-06-20