Inventor · disambiguated record
Kengo Asai
Also filed as: ASAI KENGO
32 granted patents·12 pending applications·394 citations·filing 1994–2024
97Inventor score
Files withHITACHI MEDIA ELECTRON KK13HITACHI HIGH TECH CORP9HITACHI LTD5ISOBE ATSUSHI3KONICA MINOLTA INC2
Top patents by PatentIndex Score
44 records- 0197US7962064B2Toner container and image forming apparatus comprising the sameKONICA MINOLTA BUSINESS TECH·Filed 2010·Granted Jun 14, 2011·23 cites·10 claims
- 0296US7554427B2Thin film bulk acoustic wave resonator and filter, and radio frequency module using themHITACHI MEDIA ELECTRON KK·Filed 2007·Granted Jun 30, 2009·49 cites·2 claims
- 0395US7489063B2Thin film piezoelectric bulk acoustic wave resonator and radio frequency filter using the sameHITACHI MEDIA ELECTRON KK·Filed 2007·Granted Feb 10, 2009·43 cites·18 claims
- 0493US7986075B2Film bulk acoustic wave resonator, its fabrication method and film bulk acoustic wave resonator filter using the resonatorHITACHI MEDIA ELECTRON KK·Filed 2008·Granted Jul 26, 2011·29 cites·18 claims
- 0592US7242273B2RF-MEMS switch and its fabrication methodHITACHI MEDIA ELECTRON KK·Filed 2004·Granted Jul 10, 2007·49 cites·8 claims
- 0690US7221242B2Bulk acoustic wave resonator and manufacturing method thereof, filter using the same, semiconductor integrated circuit device using the same, and high frequency module using the sameHITACHI MEDIA ELECTRON KK·Filed 2005·Granted May 22, 2007·22 cites·19 claims
- 0788US7561010B2Piezoelectric thin film resonatorsHITACHI MEDIA ELECTRON KK·Filed 2006·Granted Jul 14, 2009·19 cites·8 claims
- 0885US9906205B2Semiconductor device, manufacturing method of the same, and mobile phoneRENESAS ELECTRONICS CORP·Filed 2016·Granted Feb 27, 2018·4 cites·9 claims
- 0984US10304653B2Ion milling device, ion source and ion milling methodHITACHI HIGH TECH CORP·Filed 2015·Granted May 28, 2019·3 cites·20 claims
- 1084US9299914B2Semiconductor device, manufacturing method of the same, and mobile phoneASAI KENGO·Filed 2012·Granted Mar 29, 2016·8 cites·24 claims
- 1184US7408287B2Film bulk acoustic wave resonator, film bulk acoustic wave resonator filter and method of manufacturing film bulk acoustic wave resonatorHITACHI MEDIA ELECTRON KK·Filed 2006·Granted Aug 5, 2008·11 cites·6 claims
- 1283US7745975B2Piezoelectric thin film resonator, piezoelectric thin film resonator filter and manufacturing method thereofHITACHI MEDIA ELECTRON KK·Filed 2007·Granted Jun 29, 2010·12 cites·16 claims
- 1381US7675387B2Surface acoustic wave device and communication terminal using the sameHITACHI MEDIA ELECTRON KK·Filed 2006·Granted Mar 9, 2010·11 cites·23 claims
- 1481US6346761B1Surface acoustic wave device capable of suppressing spurious response due to non-harmonic higher-order modesHITACHI ELECTRONICS·Filed 2000·Granted Feb 12, 2002·22 cites·21 claims
- 1579US7994878B2Acoustic wave device and high-frequency filter using the sameHITACHI LTD·Filed 2009·Granted Aug 9, 2011·9 cites·20 claims
- 1677US9164421B2Toner bottle, supply unit, and image forming apparatusKONICA MINOLTA INC·Filed 2013·Granted Oct 20, 2015·2 cites·12 claims
- 1776US8164399B2Thin film piezoelectric vibrator, thin film piezoelectric bulk acoustic wave resonator, and radio-frequency filter using such resonatorISOBE ATSUSHI·Filed 2011·Granted Apr 24, 2012·4 cites·4 claims
- 1876US5604059AMask structure having phase shifting pattern suitable for forming fine pattern on photosensitive film and method of manufacturing solid-state devices using such mask structureHITACHI LTD·Filed 1994·Granted Feb 18, 1997·34 cites·13 claims
- 1972US7940145B2Thin film piezoelectric vibrator, thin film piezoelectric bulk acoustic wave resonator, and radio-frequency filter using such resonatorHITACHI LTD·Filed 2007·Granted May 10, 2011·6 cites·9 claims
- 2072US5814917ASurface acoustic wave equipmentHITACHI MEDIA ELECTRON KK·Filed 1996·Granted Sep 29, 1998·26 cites·12 claims
- 2170US9020375B2Toner resupply device including a detector plate, a douser, and a fixing plate fixing the detector plate and the douser, and image forming apparatusKONICA MINOLTA INC·Filed 2013·Granted Apr 28, 2015·1 cites·5 claims
- 2269US2025115701A1Polymer materialMENICON CO LTD·Filed 2024·Application pending·0 cites
- 2368US10361065B2Ion milling systemHITACHI HIGH TECH CORP·Filed 2015·Granted Jul 23, 2019·1 cites·14 claims
- 2468US7586390B2Bulk acoustic wave resonator, bulk acoustic wave filter, RF module including bulk acoustic wave resonator and/or filter, and bulk acoustic wave oscillatorHITACHI MEDIA ELECTRON KK·Filed 2006·Granted Sep 8, 2009·6 cites·15 claims
- 2563US11158481B2Ion milling device, ion source, and ion milling methodHITACHI HIGH TECH CORP·Filed 2019·Granted Oct 26, 2021·0 cites·17 claims
- 2656US2025308834A1Ion milling device and ion milling methodHITACHI HIGH TECH CORP·Filed 2022·Application pending·0 cites
- 2755US12209154B2Polymer materialMENICON CO LTD·Filed 2020·Granted Jan 28, 2025·0 cites·19 claims
- 2854US12051560B2Ion gun and ion milling machineHITACHI HIGH TECH CORP·Filed 2019·Granted Jul 30, 2024·0 cites·19 claims
- 2951US12020893B2Ion milling deviceHITACHI HIGH TECH CORP·Filed 2020·Granted Jun 25, 2024·0 cites·14 claims
- 3050US9527986B2Cellulose acylate film, polarizing plate and liquid crystal display deviceFUJIFILM CORP·Filed 2014·Granted Dec 27, 2016·0 cites·17 claims
- 3147US2024194443A1Ion milling deviceHITACHI HIGH TECH CORP·Filed 2021·Application pending·0 cites
- 3246US2006206126A1Blade for use in corneal surgery and corneal surgical apparatus having the sameSUGIMURA MASAHIRO·Filed 2006·Application pending·0 cites
- 3345US8102102B2Thin film tuning-fork type inflection resonator and electric signal processing elementISOBE ATSUSHI·Filed 2011·Granted Jan 24, 2012·0 cites·5 claims
- 3444US11257654B2Ion milling apparatusHITACHI HIGH TECH CORP·Filed 2016·Granted Feb 22, 2022·0 cites·11 claims
- 3544US7915793B2Thin film tuning-fork type inflection resonator and electric signal processing elementHITACHI LTD·Filed 2007·Granted Mar 29, 2011·0 cites·8 claims
- 3644US2013020880A1Energy Storage CircuitHITACHI LTD·Filed 2012·Application pending·0 cites
- 3744US2012196142A1Resin film, polarizer protective film, polarizer, and liquid-crystal display deviceFUKAGAWA NOBUTAKA·Filed 2012·Application pending·0 cites
- 3841US10332722B2Ion milling device and ion milling methodHITACHI HIGH TECH CORP·Filed 2015·Granted Jun 25, 2019·0 cites·10 claims
- 3941US2012258263A1Cellulose acylate film, polarizing plate using the same and liquid crystal display deviceTAMURA AKIO·Filed 2012·Application pending·0 cites
- 4040US2012177848A1Cellulose acylate film, polarizing plate, and liquid crystal display deviceKAMOHARA KAZUO·Filed 2012·Application pending·0 cites
- 4139US2005168102A1Film bulk acoustic wave resonator, film bulk acoustic wave resonator filter and method of manufacturing film bulk acoustic wave resonatorHITACHI MEDIA ELECTRON KK·Filed 2004·Application pending·0 cites
- 4236US2011037343A1Elastic Wave DeviceHITACHI MEDIA ELECTRON KK·Filed 2010·Application pending·0 cites
- 4334US2011304243A1Thin-Film Piezoelectric Acoustic Wave Resonator and High-Frequency FilterISOBE ATSUSHI·Filed 2010·Application pending·0 cites
- 4429US2015221845A1Thermoelectric conversion deviceTAKUBO CHISAKI·Filed 2012·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Kengo Asai files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →