Inventor
KOSHI HIROYUKI
JP18 patents
⚠️ This page may combine multiple inventors who share the name “KOSHI HIROYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FURUKAWA ELECTRIC CO LTD
7 patentsUS6195481B1Feb 27, 2001
Array waveguide diffraction grating optical multiplexer/demultiplexer
FURUKAWA ELECTRIC CO LTD29 citations92
US6539158B2Mar 25, 2003
Optical waveguide circuit
FURUKAWA ELECTRIC CO LTD11 citations74
US6728447B2Apr 27, 2004
Optical multiplexer/demultiplexer
FURUKAWA ELECTRIC CO LTD2 citations62
US6618521B2Sep 9, 2003
Wavelength multiplexing module with polarization maintaining fibers as depolarizers
FURUKAWA ELECTRIC CO LTD4 citations62
US6480642B1Nov 12, 2002
Hybrid optical waveguide circuit chip, and method for predicting the characteristics thereof
FURUKAWA ELECTRIC CO LTD3 citations62
US6415072B1Jul 2, 2002
Optical wavelength multiplexing and dividing device
FURUKAWA ELECTRIC CO LTD4 citations62
US6804430B2Oct 12, 2004
Optical multiplexer/demultiplexer
FURUKAWA ELECTRIC CO LTD5 citations58
HITACHI LTD
6 patentsUS5112646AMay 12, 1992
Apparatus for bioluminescence measurement
HITACHI LTD22 citations92
US4798463AJan 17, 1989
Spectrofluorophotometer
HITACHI LTD43 citations92
US4699512AOct 13, 1987
Device for measuring fluorescence polarization
HITACHI LTD38 citations92
US4957366ASep 18, 1990
Fluorescence spectrophotometer and wavelength setting method therefor
HITACHI LTD7 citations69
US4779982AOct 25, 1988
Spectrofluorophotometer with monitor detector for light source
HITACHI LTD9 citations69
US4647202AMar 3, 1987
Spectrophosphorimetry
HITACHI LTD5 citations61