IP Library Granted Patent US 6,459,840
Granted Patent Utility
US 6,459,840 · App. 09/259,332

Optical transmission device

Inventors: Hiroshi Sato, Masahiro Aoki, Tsurugi Sudoh, Akira Taike, Tomonobu Tsuchiya, Masaaki Komori, Kazuhisa Uomi
Patented Case View Patent ↗
Granted: Oct 1, 2002 Filed: Mar 1, 1999
Inventors
Hiroshi Sato
Masahiro Aoki
Tsurugi Sudoh
Akira Taike
Tomonobu Tsuchiya
Masaaki Komori
Kazuhisa Uomi
Assignee (at issue)
HITACHI, LTD.

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Quick Facts
Patent No.
US 6,459,840
App. No.
09/259,332
Filed
1999-03-01
Granted
2002-10-01
Kind
B1