Inventor
OHTANI TOSHIHIRO
JP38 patents
⚠️ This page may combine multiple inventors who share the name “OHTANI TOSHIHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
19 patentsUS6532102B2Mar 11, 2003
Optical amplifier
FUJITSU LTD33 citations92
US6046839AApr 4, 2000
Polarizaiton scrambler
FUJITSU LTD19 citations92
US6033126AMar 7, 2000
Optical waveguide module having improved high-frequency characteristics
FUJITSU LTD23 citations92
US7813647B2Oct 12, 2010
Chromatic dispersion compensation control method and apparatus
FUJITSU LTD9 citations84
US7519300B2Apr 14, 2009
Optical output control method for use in optical transmission node and optical output control apparatus for use in the same
FUJITSU LTD8 citations84
US6238102B1May 29, 2001
Multiaxial optical coupler
FUJITSU LTD16 citations84
US7251072B2Jul 31, 2007
Optical transmission system
FUJITSU LTD13 citations82
US6674567B2Jan 6, 2004
Raman excitation control method and optical transmission system using the same
FUJITSU LTD9 citations74
US6621620B2Sep 16, 2003
Optical amplification system using Raman amplification
FUJITSU LTD8 citations74
US9544087B2Jan 10, 2017
Amplifying device, receiving device, and amplification method
FUJITSU LTD2 citations73
US9154227B2Oct 6, 2015
Port monitoring device and port monitoring method
FUJITSU LTD2 citations63
US7454108B2Nov 18, 2008
Multimode fiber transmission system
FUJITSU LTD2 citations63
US7324189B2Jan 29, 2008
Light power adjusting method, optical transmitter, and optical receiver
FUJITSU LTD5 citations63
US6819828B2Nov 16, 2004
Method and device for optical fiber transmission
FUJITSU LTD6 citations63
US7586672B2Sep 8, 2009
Optical transmission system
FUJITSU LTD2 citations61
US9614345B2Apr 4, 2017
Arrayed optical amplifier and optical transmission device
FUJITSU LTD0 citations52
US7911685B2Mar 22, 2011
Control of a light source providing excitation light
FUJITSU LTD0 citations52
US7142782B2Nov 28, 2006
Noise light elimination method, noise light elimination apparatus and optical transmission system, using stimulated brillouin scattering
FUJITSU LTD1 citations52
US9869824B2Jan 16, 2018
Optical adapter
FUJITSU LTD1 citations42
EBARA CORP
6 patentsUS6109108AAug 29, 2000
Electromagnetic acoustic transducer EMAT and inspection system with EMAR
EBARA CORP56 citations94
US4998033AMar 5, 1991
Gas dynamic bearing for spindle motor
EBARA CORP63 citations94
US4984881AJan 15, 1991
Rotation supporting device of a polygon mirror
EBARA CORP63 citations93
US5811682ASep 22, 1998
Electromagnetic acoustic transducer EMAT and inspection system with EMAR
EBARA CORP46 citations91
US6038925AMar 21, 2000
Focal type electromagnetic acoustic transducer and flaw detection system and method
EBARA CORP17 citations82
US6839640B2Jan 4, 2005
Method and apparatus for diagnosing damages of conductive materials
EBARA CORP8 citations74
OHTANI TOSHIHIRO
5 patentsUS8571414B2Oct 29, 2013
Optical transmission device, transmission and reception module, optical transmission system, and wavelength dispersion compensation method in optical transmission device
OHTANI TOSHIHIRO2 citations61
US8131159B2Mar 6, 2012
Transmission apparatus and optical transmission apparatus
OHTANI TOSHIHIRO2 citations61
US8390798B2Mar 5, 2013
Wavelength dispersion measurement method and device and optical transmission system
OHTANI TOSHIHIRO1 citations51
US8184990B2May 22, 2012
Light source wavelength control apparatus
OHTANI TOSHIHIRO1 citations51
US9048955B2Jun 2, 2015
Tunable dispersion compensation device, optical reception apparatus, and method for controlling tunable dispersion compensation
OHTANI TOSHIHIRO0 citations40