Inventor
YAMANAKA KOJI
JP77 patents
⚠️ This page may combine multiple inventors who share the name “YAMANAKA KOJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ORGANO CORP
18 patentsUS5720869AFeb 24, 1998
Equipment and process for producing high-purity water
ORGANO CORP104 citations97
US5783790AJul 21, 1998
Wet treatment method
ORGANO CORP56 citations96
US5593554AJan 14, 1997
Electrolytic ionized water producing apparatus
ORGANO CORP62 citations96
US7425583B2Sep 16, 2008
Ion exchanger
ORGANO CORP18 citations92
US7201832B2Apr 10, 2007
Electrodeionization deionized water producing apparatus
ORGANO CORP20 citations92
US7033472B2Apr 25, 2006
Electrodeionization water producing apparatus and method of producing deionized water using same
ORGANO CORP22 citations92
US7026364B2Apr 11, 2006
Ion exchanger
ORGANO CORP13 citations92
US7094349B2Aug 22, 2006
Organic porous article having selective adsorption ability for boron, and boron removing module and ultra-pure water production apparatus using the same
ORGANO CORP16 citations84
US6841580B2Jan 11, 2005
Organic porous material, process for manufacturing the same, and organic porous ion exchanger
ORGANO CORP12 citations84
US6951609B2Oct 4, 2005
High-purity water producing apparatus
ORGANO CORP8 citations74
US7393445B2Jul 1, 2008
Ion exchanger
ORGANO CORP7 citations73
US7173066B2Feb 6, 2007
Ion exchanger
ORGANO CORP5 citations73
US10406493B2Sep 10, 2019
Diluted solution production method and diluted solution production apparatus
ORGANO CORP5 citations71
US11901174B2Feb 13, 2024
Substrate treatment method and substrate treatment equipment
ORGANO CORP0 citations62
US11491517B2Nov 8, 2022
Method and system for cleaning copper-exposed substrate
ORGANO CORP0 citations62
US11004674B2May 11, 2021
Substrate treatment method and substrate treatment equipment
ORGANO CORP1 citations62
US10647648B2May 12, 2020
Method for purifying organic solvent
ORGANO CORP1 citations61
US7078441B2Jul 18, 2006
Organic porous material, process for manufacturing the same, and organic porous ion exchanger
ORGANO CORP1 citations52
MITSUBISHI ELECTRIC CORP
12 patentsUS6462622B1Oct 8, 2002
High-frequency amplifier and high-frequency multistage amplifier
MITSUBISHI ELECTRIC CORP57 citations96
US6277205B1Aug 21, 2001
Method and apparatus for cleaning photomask
MITSUBISHI ELECTRIC CORP19 citations91
US6071376AJun 6, 2000
Method and apparatus for cleaning photomask
MITSUBISHI ELECTRIC CORP35 citations91
US7019706B2Mar 28, 2006
High frequency module and antenna device
MITSUBISHI ELECTRIC CORP14 citations83
US10523158B2Dec 31, 2019
Load modulation amplifier
MITSUBISHI ELECTRIC CORP2 citations71
US10170400B2Jan 1, 2019
Multi-finger transistor and semiconductor device
MITSUBISHI ELECTRIC CORP2 citations71
US10511267B2Dec 17, 2019
Power amplifier
MITSUBISHI ELECTRIC CORP2 citations70
US11336233B2May 17, 2022
Amplifier
MITSUBISHI ELECTRIC CORP0 citations61
US10355130B2Jul 16, 2019
Semiconductor device
MITSUBISHI ELECTRIC CORP1 citations61
US11228173B2Jan 18, 2022
Limiter circuit
MITSUBISHI ELECTRIC CORP0 citations60
US11381206B2Jul 5, 2022
Power amplifier and filter
MITSUBISHI ELECTRIC CORP0 citations59
US12449461B2Oct 21, 2025
Charge sensor
MITSUBISHI ELECTRIC CORP0 citations58
NEC CORP
5 patentsUS5635053AJun 3, 1997
Method and apparatus for cleaning electronic parts
NEC CORP90 citations96
US5616221AApr 1, 1997
Electrolytic ionized water producing apparatus
NEC CORP91 citations96
US5952127ASep 14, 1999
Method of fabricating a phase shifting reticle
NEC CORP51 citations93
US5273925ADec 28, 1993
Method of fabricating semiconductor memory device having a cylindrical capacitor electrode
NEC CORP27 citations93
US5422512AJun 6, 1995
Semiconductor device and reticle used for fabricating the same
NEC CORP2 citations63
DENSO CORP
4 patentsUS10559944B2Feb 11, 2020
Spark plug for internal combustion engine
DENSO CORP5 citations69
US9929542B2Mar 27, 2018
Spark plug and method for manufacturing the same
DENSO CORP4 citations67
US7030544B2Apr 18, 2006
Spark plug designed to enhance strength of joint of noble metal member to ground electrode
DENSO CORP5 citations63
US7154213B2Dec 26, 2006
Ground electrode structure of a spark plug for a gas engine
DENSO CORP5 citations60
FURUKAWA ELECTRIC CO LTD
2 patentsFRONTEC INC
1 patentHAMAMATSU PHOTONICS KK
1 patentHITACHI LTD
1 patentMITSUBISHIDENKI KABUSHIKI KAIS
1 patentOTSUKA HIROSHI
1 patentOISHI TOSHIYUKI
1 patentMAKITA CORP
1 patentYOSHINO KOGYOSHO CO LTD
1 patentWATANABE & CO LTD M
1 patentShowing the top 50 of 77 patents by PatentIndex Score.