Granted Patent
Utility
US 6,340,251 · App. 09/253,740
Multi-channel optical coupling module
Inventors:
Yoshiki Shibuya, Takashi Ushikubo
Patented Case
View Patent ↗
Granted: Jan 22, 2002
Filed: Feb 22, 1999
Inventors
Yoshiki Shibuya
Takashi Ushikubo
Assignee (at issue)
OKI ELECTRIC INDUSTRY CO., LTD.
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.