Issued Patents 2004
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6779320 | Method of and apparatus for manufacturing instant photography film unit | Hideaki Kataoka, Hiroaki Tanaka, Tatsuo Shiino, Takayuki Kambara, Hisashi Kikuchi +1 more | 2004-08-24 |
| 6771414 | Optical fiber amplifier and optical communication system using the same | Hiroji Masuda, Atsushi Mori | 2004-08-03 |
| 6771864 | Optical fiber transmission line, optical cable, and optical transmission system | Yuji Kubo, Toshiyuki Miyamoto | 2004-08-03 |
| 6721092 | Thulium-doped fiber amplifier using pump light for improving conversion efficiency in a S-band | Shinichi Aozasa, Hiroji Masuda, Tadashi Sakamoto, Yoshiki Nishida | 2004-04-13 |
| 6711335 | Heat resistant optical fiber core | Yuji Kubo, Tomoyuki Hattori, Katsuyuki Tsuneishi | 2004-03-23 |
| 6687443 | Optical fiber transmission line, optical cable, and optical transmission system | Yuji Kubo, Toshiyuki Miyamoto | 2004-02-03 |