TK

Tetsutarou Katayama

Sumitomo Electric Industries: 2 patents #9,741 of 21,551Top 50%
Overall (All Time): #2,157,152 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7212717 Optical fiber Tatsuhiko Saito, Kenichiro Takahashi 2007-05-01
7130513 Glass-body-producing method and optical glass body and optical fiber Tetsuya Haruna, Shinji Ishikawa, Toshiki Taru, Nobuyuki Taira 2006-10-31