IT

Ichiro Tsuchiya

Sumitomo Electric Industries: 2 patents #599 of 3,632Top 20%
Overall (2005): #52,684 of 245,428Top 25%
2
Patents 2005

Issued Patents 2005

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6928840 Optical fiber producing method Katsuya Nagayama, Yuichi Ohga, Kazuya Kuwahara 2005-08-16
6907757 Drawing method of optical fiber and drawing furnace Kazuya Kuwahara, Katsuya Nagayama, Masashi Onishi 2005-06-21