YI

Yoichi Ishiguro

Sumitomo Electric Industries: 2 patents #217 of 2,038Top 15%
Overall (1997): #19,185 of 185,788Top 15%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5627930 Arrayed optical fiber coupler and method of manufacturing the same Shigeru Semura, Yuji Kobayashi, Toshiyuki Wakinosono, Tomoyuki Hattori, Hiroshi Suganuma +2 more 1997-05-06
5620494 Method for manufacturing optical fiber coupler Eisuke Sasaoka, Yuji Kobayashi, Tomomi Moriya, Shigeru Semura 1997-04-15