KI

Ken Ishitobi

SD Showa Denko: 1 patents #8 of 79Top 15%
Overall (1989): #88,649 of 140,708Top 65%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4883502 Abrasive composition and process for polishing Kunihiro Miyazaki 1989-11-28