KO

Katsumi Okayama

SC Sumitomo Metal Mining Co.: 1 patents #2 of 26Top 8%
SC Sumitomo Special Metals Co.: 1 patents #4 of 27Top 15%
Overall (1994): #108,112 of 165,921Top 70%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5281250 Powder material for rare earth-iron-boron based permanent magnets Atsushi Hamamura, Yuji Kaneko, Yasuhiro Okajima, Kaname Takeya, Shuji Okada 1994-01-25