Inventor
HANEDA MAKOTO
JP9 patents
Patents
9 patentsUS4997243AMar 5, 1991
Method of mounting a light emitting chip and an optical fiber on a photoelectric device
HITACHI LTD54 citations94
US4803361AFeb 7, 1989
Photoelectric device with optical fiber and laser emitting chip
HITACHI LTD54 citations94
US5283846AFeb 1, 1994
Optical isolator, optical circuit, and rare-earth-doped fiber optical amplifier
HITACHI LTD31 citations92
US6195370B1Feb 27, 2001
Optical transmission device and method for driving laser diode
HITACHI LTD41 citations89
US6195371B1Feb 27, 2001
Optical transmission device and method for driving laser diode
HITACHI LTD33 citations89
US4920262AApr 24, 1990
Photoelectric device with leads
HITACHI LTD13 citations72
US4779281AOct 18, 1988
Light emitting chip and optical communication apparatus using the same
HITACHI LTD8 citations71
US4701927AOct 20, 1987
Light emitting chip and optical communication apparatus using the same
HITACHI LTD8 citations71
US5386310AJan 31, 1995
Parallel optical switching apparatus
HITACHI LTD4 citations60