YK

Yutaka Katsuyama

NT NTT: 2 patents #4 of 258Top 2%
Sumitomo Electric Industries: 2 patents #257 of 1,892Top 15%
Overall (1994): #15,282 of 165,921Top 10%
2
Patents 1994

Issued Patents 1994

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5348564 Method for manufacturing a hermetically coated optical fiber Haruhiko Aikawa, Katsuya Nagayama, Yoichi Ishiguro, Ichiro Yoshimura, Nobuyuki Yoshizawa 1994-09-20
5281247 Method for producing hermetic coated optical fiber Haruhiko Aikawa, Yoichi Ishiguro, Katsuya Nagayama, Ichiro Yoshimura, Nobuyuki Yoshizawa 1994-01-25