Granted Patent
Utility
US 5,757,989 · App. 08/240,739
Optical circuit system capable of producing optical signal having a small fluctuation and components of same
Inventors:
Tetsuzo Yoshimura, Takeshi Ishitsuka, Katsusada Motoyoshi, Satoshi Tatsuura, Wataru Sotoyama, Koji Tsukamoto, Yasuhiro Yoneda, Tomoaki Hayano, Azuma Matsuura
Patented Case
View Patent ↗
Granted: May 26, 1998
Filed: Aug 15, 1994
Inventors
Tetsuzo Yoshimura
Takeshi Ishitsuka
Katsusada Motoyoshi
Satoshi Tatsuura
Wataru Sotoyama
Koji Tsukamoto
Yasuhiro Yoneda
Tomoaki Hayano
Azuma Matsuura
Assignee (at issue)
Fujitsu Limited
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.