Granted Patent
Utility
US 6,501,583 · App. 09/417,726
Optical receiver module optical transmitter module phase-locked loop circuit voltage-controlled oscillator and frequency response controllable amplifier
Inventors:
Mitsuo Akashi, Hiroki Irie, Yasuhiro Yamada, Akihiro Hayami, Naohiko Baba, Tomonao Kikuchi
Patented Case
View Patent ↗
Granted: Dec 31, 2002
Filed: Oct 14, 1999
Inventors
Mitsuo Akashi
Hiroki Irie
Yasuhiro Yamada
Akihiro Hayami
Naohiko Baba
Tomonao Kikuchi
Assignee (at issue)
Opnext Japan, Inc.
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.