Inventor
TSUKAMOTO KOJI
JP59 patents
⚠️ This page may combine multiple inventors who share the name “TSUKAMOTO KOJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
26 patentsUS5835646ANov 10, 1998
Active optical circuit sheet or active optical circuit board, active optical connector and optical MCM, process for fabricating optical waveguide, and devices obtained thereby
FUJITSU LTD193 citations99
US6549752B2Apr 15, 2003
Apparatus and method accumulating cases to be learned
FUJITSU LTD92 citations98
US6081632AJun 27, 2000
Method of producing optical waveguide system, optical device and optical coupler employing the same, optical network and optical circuit board
FUJITSU LTD141 citations98
US5917980AJun 29, 1999
Optical circuit device, its manufacturing process and a multilayer optical circuit using said optical circuit device
FUJITSU LTD98 citations98
US6739508B2May 25, 2004
Evaluation apparatus with voting system, evaluation method with voting system, and a computer product
FUJITSU LTD63 citations96
US6693736B1Feb 17, 2004
Optical circuit system and components of same
FUJITSU LTD61 citations96
US6215585B1Apr 10, 2001
Optical circuit system and components of same technical field
FUJITSU LTD80 citations96
US5902715AMay 11, 1999
Method of forming a mirror in a waveguide
FUJITSU LTD54 citations96
US5757989AMay 26, 1998
Optical circuit system capable of producing optical signal having a small fluctuation and components of same
FUJITSU LTD80 citations96
US5658966AAug 19, 1997
Method of coupling optical parts and refractive index imaging material
FUJITSU LTD48 citations96
US7197697B1Mar 27, 2007
Apparatus for retrieving information using reference reason of document
FUJITSU LTD20 citations93
US7099534B2Aug 29, 2006
Optical transmission device with optical waveguide coupled to optical device
FUJITSU LTD22 citations93
US6338975B1Jan 15, 2002
Optical circuit device, its manufacturing process and a multilayer optical circuit using said optical circuit device
FUJITSU LTD26 citations93
US5818983AOct 6, 1998
Optical integrated circuit, optical circuit waveguide device and process for oriented, selective growth and formation of organic film
FUJITSU LTD37 citations93
US7359594B2Apr 15, 2008
Optical waveguide structure and optical module
FUJITSU LTD20 citations92
US6504966B2Jan 7, 2003
Optical deflecting element, optical switch module, light signal switching device
FUJITSU LTD43 citations92
US6486235B2Nov 26, 2002
Composition of epoxy resin, curing agent, phosphate of resorcinol, Al (OH)
FUJITSU LTD25 citations92
US6017681AJan 25, 2000
Method of coupling optical parts and method of forming a mirror
FUJITSU LTD39 citations92
US5581646ADec 3, 1996
Method of coupling optical parts and refractive index imaging material
FUJITSU LTD36 citations92
US7469240B2Dec 23, 2008
Document classification program, vector transformation program, lexical-distortion cancellation program, document classification method, and document classification apparatus
FUJITSU LTD17 citations84
US7370024B2May 6, 2008
Case classification apparatus and method
FUJITSU LTD9 citations84
US5861444AJan 19, 1999
Refractive index imaging material
FUJITSU LTD15 citations82
US7071458B2Jul 4, 2006
Optical element, optical transmission unit and optical transmission system
FUJITSU LTD7 citations74
US6916539B2Jul 12, 2005
Halogen-free, flame-retardant insulating epoxy resin composition and circuit board comprising insulation layer formed thereof
FUJITSU LTD2 citations62
US7043111B2May 9, 2006
Optical parts coupling structure, method of manufacturing the same, optical switch, two-dimensional lens array, and method of manufacturing the same
FUJITSU LTD5 citations59
US6980718B2Dec 27, 2005
Optical parts coupling structure, method of manufacturing the same, optical switch, two-dimensional lens array, and method of manufacturing the same
FUJITSU LTD1 citations49
YAHOO JAPAN CORP
6 patentsUS9818132B2Nov 14, 2017
Advertisement delivery management apparatus and advertisement delivery management method
YAHOO JAPAN CORP5 citations71
US11954155B2Apr 9, 2024
Information processing device, information processing method, and non-transitory computer readable storage medium
YAHOO JAPAN CORP0 citations47
US10296942B2May 21, 2019
Advertisement choosing device and advertisement choosing method
YAHOO JAPAN CORP0 citations42
US10223712B2Mar 5, 2019
Information providing apparatus, advertisement delivery system, information providing method, and information providing program
YAHOO JAPAN CORP0 citations42
US10402855B2Sep 3, 2019
Advertisement distribution device and advertisement distribution method
YAHOO JAPAN CORP0 citations40
US10019735B2Jul 10, 2018
Advertisement distribution apparatus, distribution method, and distribution program
YAHOO JAPAN CORP0 citations40
MAKITA CORP
4 patentsSHARP KK
4 patentsYAMAZAKI SANGYO KK
2 patentsALPS ALPINE CO LTD
2 patentsKAWAGUCHI KEIKO
1 patentNOK CORP
1 patentSONY CORP
1 patentOMRON HEALTHCARE CO LTD
1 patentAISIN AW CO
1 patentTOYOTA JIDOSHOKKI KK
1 patentShowing the top 50 of 59 patents by PatentIndex Score.