YN

Yasuo Numajiri

SC Sumitomo Metal Mining Co.: 1 patents #385 of 736Top 55%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #3,838,934 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5267078 Optical isolator Kazuo Shiraishi, Kazuhiro Nakajima 1993-11-30