Inventor
HAYAKAWA AKINORI
JP16 patents
⚠️ This page may combine multiple inventors who share the name “HAYAKAWA AKINORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
12 patentsUS9348154B2May 24, 2016
Optical resonator apparatus, optical transmitter and controlling method for optical resonator
FUJITSU LTD61 citations97
US7112827B2Sep 26, 2006
Tunable wavelength laser
FUJITSU LTD46 citations91
US9606417B2Mar 28, 2017
Optical modulation apparatus, optical transmitter and controlling method for optical modulator
FUJITSU LTD6 citations83
US7983318B2Jul 19, 2011
Optical semiconductor device
FUJITSU LTD11 citations83
US10151877B2Dec 11, 2018
Optical circuit module, optical transceiver using the same, and semiconductor photonic device
FUJITSU LTD2 citations72
US9874709B2Jan 23, 2018
Optical functional device, optical receiving apparatus and optical transmission apparatus
FUJITSU LTD2 citations72
US9235001B2Jan 12, 2016
Optical device and optical module
FUJITSU LTD5 citations72
US8666200B2Mar 4, 2014
Optical modulation device, driving method of optical modulation device, and manufacturing method of optical modulation device
FUJITSU LTD3 citations62
US7633984B2Dec 15, 2009
Optical semiconductor device and driving method thereof
FUJITSU LTD3 citations62
US9979489B2May 22, 2018
Optical modulation apparatus, optical transmitter and controlling method for optical modulator
FUJITSU LTD1 citations51
US8654803B2Feb 18, 2014
Light emitting device and method of controlling light emitting device
FUJITSU LTD1 citations51
US9225147B2Dec 29, 2015
Optical semiconductor device and method of manufacturing the same
FUJITSU LTD0 citations41
HAYAKAWA AKINORI
4 patentsUS8891159B2Nov 18, 2014
Optical semiconductor element, semiconductor laser, and method of manufacturing optical semiconductor element
HAYAKAWA AKINORI2 citations60
US8818142B2Aug 26, 2014
Optical semiconductor device
HAYAKAWA AKINORI3 citations60
US8401352B2Mar 19, 2013
Optical waveguide device, its manufacture method, laser module and optical transmission system
HAYAKAWA AKINORI3 citations60
US8073033B2Dec 6, 2011
Optical semiconductor device and driving method thereof
HAYAKAWA AKINORI0 citations50