YH

Yoshitsugu Hamada

SD Showa Denko: 1 patents #8 of 79Top 15%
Overall (1989): #41,295 of 140,708Top 30%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4828135 Cover for a can-shaped container Yoshihiko Kawakami, Takeshi Takahashi, Junji Yotsuyanagi 1989-05-09