Inventor
YOKOTA TAKESHI
JP68 patents
⚠️ This page may combine multiple inventors who share the name “YOKOTA TAKESHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
JFE STEEL CORP
23 patentsUS6835487B2Dec 28, 2004
Stainless steel separator for fuel cells, method for making the same, and solid polymer fuel cell including the same
JFE STEEL CORP22 citations92
US10563279B2Feb 18, 2020
High strength steel sheet having high Young's modulus and method for manufacturing the same
JFE STEEL CORP6 citations84
US10385431B2Aug 20, 2019
High strength steel sheet having high young's modulus and method for manufacturing the same
JFE STEEL CORP7 citations84
US12258646B2Mar 25, 2025
High-strength steel sheet and method for producing same
JFE STEEL CORP2 citations75
US12258647B2Mar 25, 2025
Steel sheet, member, and methods for manufacturing the same
JFE STEEL CORP4 citations74
US10954578B2Mar 23, 2021
High-strength steel sheet and method for manufacturing same
JFE STEEL CORP2 citations73
US10711333B2Jul 14, 2020
High-strength steel sheet and method for manufacturing same
JFE STEEL CORP3 citations73
US10550446B2Feb 4, 2020
High-strength steel sheet, high-strength hot-dip galvanized steel sheet, high-strength hot-dip aluminum-coated steel sheet, and high-strength electrogalvanized steel sheet, and methods for manufacturing same
JFE STEEL CORP5 citations73
US10472697B2Nov 12, 2019
High-strength steel sheet and production method therefor
JFE STEEL CORP6 citations73
US10662496B2May 26, 2020
High-strength steel sheet and production method for same, and production method for high-strength galvanized steel sheet
JFE STEEL CORP3 citations72
US10626485B2Apr 21, 2020
Thin high-strength cold-rolled steel sheet and method of producing the same
JFE STEEL CORP6 citations72
US10100394B2Oct 16, 2018
High-strength galvannealed steel sheet and method for manufacturing the same
JFE STEEL CORP3 citations72
US9631250B2Apr 25, 2017
High-strength cold-rolled steel sheet and method for manufacturing the same
JFE STEEL CORP2 citations68
US11434542B2Sep 6, 2022
High-carbon hot-rolled steel sheet and method for producing the same
JFE STEEL CORP0 citations62
US11085100B2Aug 10, 2021
High strength steel sheet having high Young's modulus and method for manufacturing the same
JFE STEEL CORP0 citations62
US10392677B2Aug 27, 2019
High-strength hot-pressed part and method for manufacturing the same
JFE STEEL CORP1 citations62
US12110568B2Oct 8, 2024
Steel sheet and member, and methods for manufacturing same
JFE STEEL CORP0 citations60
US7955444B2Jun 7, 2011
High strength steel sheet and method for manufacturing the same
JFE STEEL CORP3 citations60
US12065711B2Aug 20, 2024
High-strength hot rolled steel sheet and method for manufacturing same
JFE STEEL CORP0 citations59
US12195819B2Jan 14, 2025
High-strength thin steel sheet and method for manufacturing same
JFE STEEL CORP0 citations52
US11035019B2Jun 15, 2021
High-strength steel sheet and production method therefor
JFE STEEL CORP0 citations52
US10934600B2Mar 2, 2021
High-strength steel sheet and production method therefor
JFE STEEL CORP0 citations52
US12565690B2Mar 3, 2026
Steel sheet, member, and methods for manufacturing the same
JFE STEEL CORP0 citations51
HITACHI LTD
8 patentsUS5306154AApr 26, 1994
Intelligent education and simulation system and method
HITACHI LTD173 citations95
US7269798B2Sep 11, 2007
Information processing apparatus for project management and its computer software
HITACHI LTD26 citations92
US6854646B2Feb 15, 2005
Transaction management system and method
HITACHI LTD20 citations89
US6414691B1Jul 2, 2002
Method and apparatus for displaying graphs
HITACHI LTD26 citations89
US7729932B2Jun 1, 2010
Project assessment system and method
HITACHI LTD17 citations81
US4216487AAug 5, 1980
Bidirectional light-activated thyristor having substrate optical isolation
HITACHI LTD12 citations74
US4110781AAug 29, 1978
Bidirectional grooved thyristor fired by activation of the beveled surfaces
HITACHI LTD13 citations74
US4757367AJul 12, 1988
Light triggered semiconductor device with detachable auxiliary thyrister
HITACHI LTD4 citations63
KAWASAKI STEEL CO
6 patentsUS6306341B1Oct 23, 2001
Stainless steel product having excellent antimicrobial activity and method for production thereof
KAWASAKI STEEL CO27 citations91
US6383309B2May 7, 2002
Ferritic stainless steel plate
KAWASAKI STEEL CO13 citations74
US5792285AAug 11, 1998
Hot-rolled ferritic steel for motor vehicle exhaust members
KAWASAKI STEEL CO8 citations74
US6312533B1Nov 6, 2001
Stainless steel material with excellent antibacterial property and process for producing the same
KAWASAKI STEEL CO9 citations73
US5505797AApr 9, 1996
Method of producing ferritic stainless steel strip with small intra-face anisotropy
KAWASAKI STEEL CO15 citations72
US6645324B2Nov 11, 2003
Method of manufacturing a ferritic stainless steel plate
KAWASAKI STEEL CO4 citations63
YOKOTA TAKESHI
2 patentsFUKUDA YOSHIBUMI
2 patentsSUMITOMO OSAKA CEMENT CO LTD
1 patentCHUGAI PHARMACEUTICAL CO LTD
1 patentHITACHI PLANT TECHNOLOGIES LTD
1 patentPIONEER ELECTRONIC CORP
1 patentKOBAYASHI AKIO
1 patentKAWANO HIROYASU
1 patentASAHI CHEMICAL IND
1 patentNAKAGAWA KOICHI
1 patentSAITO HAYATO
1 patentShowing the top 50 of 68 patents by PatentIndex Score.