Inventor
KAKUI MOTOKI
JP83 patents
⚠️ This page may combine multiple inventors who share the name “KAKUI MOTOKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO ELECTRIC INDUSTRIES
40 patentsUS6958856B2Oct 25, 2005
Raman amplifier, raman amplifier control method, and optical communication system
SUMITOMO ELECTRIC INDUSTRIES51 citations93
US6538807B2Mar 25, 2003
Amplification optical fiber, fiber optic amplifier, optical transmitter, and optical communication system
SUMITOMO ELECTRIC INDUSTRIES34 citations93
US6317538B1Nov 13, 2001
Optical waveguide device and optical device having long-period grating
SUMITOMO ELECTRIC INDUSTRIES23 citations93
US6104526AAug 15, 2000
Optical amplifier and a method of controlling the optical amplifier
SUMITOMO ELECTRIC INDUSTRIES43 citations93
US5835259ANov 10, 1998
Optical fiber amplifier
SUMITOMO ELECTRIC INDUSTRIES21 citations93
US5742427AApr 21, 1998
Optical fiber amplifier
SUMITOMO ELECTRIC INDUSTRIES22 citations93
US6490078B2Dec 3, 2002
Optical fiber for optical amplifier, optical fiber amplifier and optical fiber laser
SUMITOMO ELECTRIC INDUSTRIES26 citations92
US6456428B1Sep 24, 2002
Optical amplifier
SUMITOMO ELECTRIC INDUSTRIES26 citations92
US8008600B2Aug 30, 2011
Fiber laser apparatus
SUMITOMO ELECTRIC INDUSTRIES8 citations84
US7535628B2May 19, 2009
Laser light source, method of laser oscillation, and method of laser processing
SUMITOMO ELECTRIC INDUSTRIES15 citations84
US6687439B1Feb 3, 2004
Light-amplifying optical fiber and method of making the same
SUMITOMO ELECTRIC INDUSTRIES14 citations84
US6549315B1Apr 15, 2003
Optical transmission system and optical amplifying apparatus, optical amplifying unit, and optical coupler for the same
SUMITOMO ELECTRIC INDUSTRIES16 citations84
US6144784ANov 7, 2000
Optical input/output module and light-reflecting device
SUMITOMO ELECTRIC INDUSTRIES19 citations84
US5900970AMay 4, 1999
Optical filter and optical transmission system having the same
SUMITOMO ELECTRIC INDUSTRIES19 citations84
US6867907B2Mar 15, 2005
Pumping light source unit, raman amplifier, and optical transmission system
SUMITOMO ELECTRIC INDUSTRIES9 citations74
US6771415B2Aug 3, 2004
Optical fiber for optical amplifier and fiber optic amplifier
SUMITOMO ELECTRIC INDUSTRIES5 citations74
US6577440B2Jun 10, 2003
Optical fiber for optical amplifier and fiber optic amplifier
SUMITOMO ELECTRIC INDUSTRIES4 citations74
US6538806B2Mar 25, 2003
Optical fiber for optical amplifier and fiber optic amplifier
SUMITOMO ELECTRIC INDUSTRIES7 citations74
US6327412B1Dec 4, 2001
Optical fiber, light-emitting module, and optical fiber amplifier
SUMITOMO ELECTRIC INDUSTRIES9 citations74
US6243196B1Jun 5, 2001
Optical fiber for optical amplifier and fiber optic amplifier
SUMITOMO ELECTRIC INDUSTRIES6 citations74
US7982945B2Jul 19, 2011
Optical amplification module and laser light source designed to suppress photodarkening
SUMITOMO ELECTRIC INDUSTRIES2 citations63
US7949021B2May 24, 2011
Light source apparatus
SUMITOMO ELECTRIC INDUSTRIES3 citations63
US7940815B2May 10, 2011
Fluorescent glass, optical waveguide, optical fiber, optical coherence tomography apparatus, and optical fiber laser
SUMITOMO ELECTRIC INDUSTRIES2 citations63
US7876794B2Jan 25, 2011
Laser light source
SUMITOMO ELECTRIC INDUSTRIES6 citations63
US7864410B2Jan 4, 2011
Optical active device having optical amplifying sections cascaded on a path for propagating input light with a predetermined wavelength
SUMITOMO ELECTRIC INDUSTRIES2 citations63
US7580183B2Aug 25, 2009
Light generator, optical amplifier, and optical communication system
SUMITOMO ELECTRIC INDUSTRIES3 citations63
US7532391B2May 12, 2009
Optical amplification module and laser light source designed to suppress photodarkening
SUMITOMO ELECTRIC INDUSTRIES5 citations63
US7344076B2Mar 18, 2008
Laser processing device
SUMITOMO ELECTRIC INDUSTRIES3 citations63
US7336415B2Feb 26, 2008
Optical amplification module, optical amplification apparatus, and optical communications system
SUMITOMO ELECTRIC INDUSTRIES4 citations63
US7181119B2Feb 20, 2007
Optically amplifying waveguide, optical amplifier module, and optical communication system
SUMITOMO ELECTRIC INDUSTRIES2 citations63
US7064890B2Jun 20, 2006
Optical amplifier and optical communication system including the same
SUMITOMO ELECTRIC INDUSTRIES5 citations63
US6954305B2Oct 11, 2005
Optical amplifier and optical transmission system using it
SUMITOMO ELECTRIC INDUSTRIES4 citations63
US6804046B2Oct 12, 2004
Optical amplification fiber, fiber optic amplifier, and optical communication system
SUMITOMO ELECTRIC INDUSTRIES2 citations63
US6778322B2Aug 17, 2004
Four-wave mixing suppression in Raman amplifiers
SUMITOMO ELECTRIC INDUSTRIES6 citations63
US6687433B2Feb 3, 2004
WDM optical communication system
SUMITOMO ELECTRIC INDUSTRIES6 citations63
US6453103B1Sep 17, 2002
Optical communication system
SUMITOMO ELECTRIC INDUSTRIES2 citations63
US6246512B1Jun 12, 2001
Optical amplifier
SUMITOMO ELECTRIC INDUSTRIES4 citations63
US6813065B2Nov 2, 2004
Raman amplifier and optical communication system
SUMITOMO ELECTRIC INDUSTRIES2 citations62
US6806999B2Oct 19, 2004
Raman amplification pumping module, Raman amplifier, and optical communication system
SUMITOMO ELECTRIC INDUSTRIES3 citations62
US6724527B2Apr 20, 2004
Optical amplifier and optical transmission system using same
SUMITOMO ELECTRIC INDUSTRIES3 citations62
KAKUI MOTOKI
6 patentsUS8290003B2Oct 16, 2012
Pulse light source
KAKUI MOTOKI5 citations74
US8933367B2Jan 13, 2015
Laser processing method
KAKUI MOTOKI5 citations72
US8628715B2Jan 14, 2014
Laser processing method and laser processing device
KAKUI MOTOKI4 citations72
US8599888B2Dec 3, 2013
Pulse light source
KAKUI MOTOKI2 citations63
US8290004B2Oct 16, 2012
Laser light source
KAKUI MOTOKI3 citations63
US8081376B2Dec 20, 2011
Multi-stage fiber amplifier to suppress Raman scattered light
KAKUI MOTOKI5 citations62
NAKAMAE KAZUO
2 patentsUNIV KYUSHU
1 patentMEGAOPTO CO LTD
1 patentShowing the top 50 of 83 patents by PatentIndex Score.