YI

Yoshikazu Ishii

Sumitomo Electric Industries: 1 patents #1,470 of 4,178Top 40%
Overall (2004): #33,853 of 270,089Top 15%
2
Patents 2004

Issued Patents 2004

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6779931 Optical fiber connecting element and alignment sleeve Norio Murata, Satoru Tomaru, Mitsunori Sato, Nobukazu Murata, BooSeok Hwang +1 more 2004-08-24
6748173 Optical transmission system and optical transmission apparatus used therefor Susumu Kirii, Hideto Takahashi, Kuniharu Itakura, Shinshi Kuno 2004-06-08