TH

Tetsuo Hatanaka

SK Showa Denko K.K.: 1 patents #18 of 64Top 30%
Overall (1994): #61,492 of 165,921Top 40%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5304226 Abrasive grain and manufacture for the same Mitsuru Hasegawa, Tadashi Hiraiwa 1994-04-19