Inventor · disambiguated record
Keisuke Okada
Also filed as: OKADA KEISUKE
48 granted patents·17 pending applications·783 citations·filing 1983–2024
98Inventor score
Files withSUMITOMO ELECTRIC INDUSTRIES12MITSUBISHI ELECTRIC CORP11TAMRON KK9KYOCERA CORP8ARAKAWA CHEM IND6
Top patents by PatentIndex Score
65 records- 0196US5258094AMethod for producing multilayer printed wiring boardsNEC CORP·Filed 1992·Granted Nov 2, 1993·292 cites·6 claims
- 0294US4982354ADigital finite impulse response filter and methodMITSUBISHI ELECTRIC CORP·Filed 1988·Granted Jan 1, 1991·77 cites·3 claims
- 0393US10514517B2Optical fiber cableSUMITOMO ELECTRIC INDUSTRIES·Filed 2016·Granted Dec 24, 2019·6 cites·10 claims
- 0490US10378195B2Flush toiletTOTO LTD·Filed 2016·Granted Aug 13, 2019·7 cites·6 claims
- 0589US10488609B2Intermittent-connection-type optical fiber ribbon and optical cableSUMITOMO ELECTRIC INDUSTRIES·Filed 2017·Granted Nov 26, 2019·7 cites·4 claims
- 0689US9116321B2Optical fiber cordSUMITOMO ELECTRIC INDUSTRIES·Filed 2014·Granted Aug 25, 2015·14 cites·18 claims
- 0787US10268015B2Optical fiber cable having a plurality of stranded optical fiber ribbonsSUMITOMO ELECTRIC INDUSTRIES·Filed 2017·Granted Apr 23, 2019·5 cites·5 claims
- 0886US10268009B2Optical fiber cableSUMITOMO ELECTRIC INDUSTRIES·Filed 2017·Granted Apr 23, 2019·5 cites·3 claims
- 0984US10416403B2Optical fiber cableSUMITOMO ELECTRIC INDUSTRIES·Filed 2017·Granted Sep 17, 2019·4 cites·1 claims
- 1084US7151879B2Optical fiber ribbon that is easily branched into individual optical fibers and optical fiber cable using the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2003·Granted Dec 19, 2006·30 cites·39 claims
- 1184US5263243AMethod for producing multilayer printed wiring boardsNEC CORP·Filed 1993·Granted Nov 23, 1993·80 cites·15 claims
- 1280US5220723AProcess for preparing multi-layer printed wiring boardNEC CORP·Filed 1991·Granted Jun 22, 1993·46 cites·5 claims
- 1379US11194108B2Slot-type optical cableSUMITOMO ELECTRIC INDUSTRIES·Filed 2018·Granted Dec 7, 2021·2 cites·3 claims
- 1479US5099171ACathode-ray tube panel having thin conductive filmNIPPON ELECTRIC GLASS CO·Filed 1988·Granted Mar 24, 1992·25 cites·5 claims
- 1578US4799009ASemiconductor testing deviceVLSI TECHNOLOGY RES ASS·Filed 1983·Granted Jan 17, 1989·44 cites·2 claims
- 1677US10606044B2Zoom lens and imaging apparatusTAMRON KK·Filed 2018·Granted Mar 31, 2020·2 cites·8 claims
- 1775US7731429B2Optical connector and method of attaching optical fiber cord to optical connectorSUMITOMO ELECTRIC INDUSTRIES·Filed 2007·Granted Jun 8, 2010·7 cites·8 claims
- 1874US10585255B2Intermittent-connection-type optical fiber ribbon with thick and thin vertical lines and method for manufacturingSUMITOMO ELECTRIC INDUSTRIES·Filed 2016·Granted Mar 10, 2020·2 cites·10 claims
- 1974US9645353B2Optical system and image pickup apparatusTAMRON KK·Filed 2016·Granted May 9, 2017·2 cites·12 claims
- 2070US7260697B2Data storage device and method of erasing data stored in the data storage deviceNEC CORP·Filed 2002·Granted Aug 21, 2007·15 cites·12 claims
- 2169US9508459B2Method to prevent stress corrosion cracking of storage canister and storage canisterHITACHI SHIPBUILDING ENG CO·Filed 2014·Granted Nov 29, 2016·2 cites·6 claims
- 2268US4654690ACapacitive elements with reduced stray capacitanceMITSUBISHI ELECTRIC CORP·Filed 1985·Granted Mar 31, 1987·34 cites·2 claims
- 2367US8317563B2Method for producing plasma display panelYAMAUCHI YASUHIRO·Filed 2010·Granted Nov 27, 2012·2 cites·15 claims
- 2466US2022396712A1Water-based oil resistant agent and oil resistant paperARAKAWA CHEM IND·Filed 2022·Application pending·0 cites
- 2563US2025208389A1Zoom lens and imaging deviceTAMRON KK·Filed 2024·Application pending·0 cites
- 2662US5377142ASemiconductor memory having data preset functionMITSUBISHI ELECTRIC CORP·Filed 1993·Granted Dec 27, 1994·21 cites·16 claims
- 2761US12276778B2Zoom lens and imaging deviceTAMRON KK·Filed 2023·Granted Apr 15, 2025·0 cites·17 claims
- 2861US2023077630A1Water-based composition for barrier and laminated materialARAKAWA CHEM IND·Filed 2022·Application pending·0 cites
- 2961US2024101818A1Aqueous heat-sealable resin composition and laminateARAKAWA CHEM IND·Filed 2023·Application pending·0 cites
- 3060US7927025B2Optical fiber branch cable, method of wiring the same, and method of providing the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2007·Granted Apr 19, 2011·3 cites·13 claims
- 3156USD927376SShift knob for automobileNISSAN MOTOR·Filed 2020·Granted Aug 10, 2021·2 cites·1 claims
- 3256US2023084251A1Heat sealing aqueous resin composition, film, laminate, and method for producing sameARAKAWA CHEM IND·Filed 2022·Application pending·0 cites
- 3353US7501762B2Plasma display panel and process for producing the samePANASONIC CORP·Filed 2006·Granted Mar 10, 2009·0 cites·5 claims
- 3453US2011089827A1Plasma display panelPANASONIC CORP·Filed 2009·Application pending·0 cites
- 3551US10923241B2Concrete caskHITACHI SHIPBUILDING ENG CO·Filed 2017·Granted Feb 16, 2021·0 cites·4 claims
- 3650US2023002975A1Powdery paper-strengthening agent, paper-strengthening agent solution, and paperARAKAWA CHEM IND·Filed 2020·Application pending·0 cites
- 3747US10288883B2Head-mounted displayKYOCERA CORP·Filed 2017·Granted May 14, 2019·0 cites·4 claims
- 3847US2013168322A1Amidoxime-modified polyacrylonitrile porous bodyUYAMA HIROSHI·Filed 2011·Application pending·0 cites
- 3946US10289161B2Head-mounted displayKYOCERA CORP·Filed 2017·Granted May 14, 2019·0 cites·10 claims
- 4046US2013058858A1Polyacrylonitrile porous bodyUYAMA HIROSHI·Filed 2011·Application pending·0 cites
- 4145US2024284642A1Information processing apparatus and information processing systemSONY GROUP CORP·Filed 2021·Application pending·0 cites
- 4244US10627609B2Zoom lens and imaging apparatusTAMRON KK·Filed 2018·Granted Apr 21, 2020·0 cites·5 claims
- 4344US10209521B2Head-mounted displayKYOCERA CORP·Filed 2017·Granted Feb 19, 2019·0 cites·11 claims
- 4444US5257174AEngine-driven power generating system with over-current protection and stator teeth with grooves on a top surfaceSAWAFUJI ELECTRIC CO LTD·Filed 1991·Granted Oct 26, 1993·13 cites·6 claims
- 4544US2022169767A1Powdery paper strengthening agent, method for producing powdery paper strengthening agent, paper strengthening agent solution and paperARAKAWA CHEM IND·Filed 2020·Application pending·0 cites
- 4642US10935772B2Zoom lens and imaging apparatusTAMRON KK·Filed 2018·Granted Mar 2, 2021·0 cites·24 claims
- 4742US10345854B2Head mounted displayKYOCERA CORP·Filed 2017·Granted Jul 9, 2019·0 cites·6 claims
- 4842US10338640B2Head mounted displayKYOCERA CORP·Filed 2017·Granted Jul 2, 2019·0 cites·6 claims
- 4941US9829685B2Optical system and image pickup apparatusTAMRON KK·Filed 2016·Granted Nov 28, 2017·0 cites·9 claims
- 5041US2018225955A1Mobile electronic deviceKYOCERA CORP·Filed 2018·Application pending·0 cites
Showing the top 50 of 65 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Keisuke Okada 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 →