Inventor · disambiguated record
Iwao Ohwada
Also filed as: OHWADA IWAO
58 granted patents·39 pending applications·834 citations·filing 1997–2024
98Inventor score
Files withNGK INSULATORS LTD97
Top patents by PatentIndex Score
97 records- 0198US6690344B1Method and apparatus for driving device and displayNGK INSULATORS LTD·Filed 2000·Granted Feb 10, 2004·235 cites·116 claims
- 0296US9431067B2Volatile memory backup system including all-solid-state batteryNGK INSULATORS LTD·Filed 2015·Granted Aug 30, 2016·12 cites·34 claims
- 0390US10581114B2Battery-equipped deviceNGK INSULATORS LTD·Filed 2017·Granted Mar 3, 2020·3 cites·17 claims
- 0488US6666658B2Microfluidic pump deviceNGK INSULATORS LTD·Filed 2002·Granted Dec 23, 2003·23 cites·2 claims
- 0585US6682318B2PumpNGK INSULATORS LTD·Filed 2002·Granted Jan 27, 2004·20 cites·6 claims
- 0685US5862275ADisplay deviceNGK INSULATORS LTD·Filed 1997·Granted Jan 19, 1999·73 cites·23 claims
- 0782US7230371B2Light sourceNGK INSULATORS LTD·Filed 2005·Granted Jun 12, 2007·6 cites·27 claims
- 0881US7071628B2Electronic pulse generation deviceNGK INSULATORS LTD·Filed 2003·Granted Jul 4, 2006·15 cites·10 claims
- 0978US7307383B2Electron emitter and method of producing the sameNGK INSULATORS LTD·Filed 2004·Granted Dec 11, 2007·25 cites·30 claims
- 1077US7528539B2Electron emitter and method of fabricating electron emitterNGK INSULATORS LTD·Filed 2005·Granted May 5, 2009·4 cites·17 claims
- 1177US6528925B1Piezoelectric/electrostrictive element driving circuitNGK INSULATORS LTD·Filed 2000·Granted Mar 4, 2003·20 cites·6 claims
- 1276US7187114B2Electron emitter comprising emitter section made of dielectric materialNGK INSULATORS LTD·Filed 2003·Granted Mar 6, 2007·11 cites·22 claims
- 1376US6476336B1Current controlling elementNGK INSULATORS LTD·Filed 2000·Granted Nov 5, 2002·12 cites·44 claims
- 1476US6452583B1Display-driving device and display-driving methodNGK INSULATORS LTD·Filed 1998·Granted Sep 17, 2002·47 cites·29 claims
- 1575US6897620B1Electron emitter, drive circuit of electron emitter and method of driving electron emitterNGK INSULATORS LTD·Filed 2003·Granted May 24, 2005·14 cites·36 claims
- 1675US6483492B1Display-driving device and display-driving method performing gradation control based on a temporal modulation systemNGK INSULATORS LTD·Filed 1999·Granted Nov 19, 2002·38 cites·42 claims
- 1775US6226080B1Method for detecting defect of transparent body, method for producing transparent bodyNGK INSULATORS LTD·Filed 1999·Granted May 1, 2001·41 cites·23 claims
- 1873US11387454B2Secondary batteryNGK INSULATORS LTD·Filed 2019·Granted Jul 12, 2022·0 cites·14 claims
- 1973US7176609B2High emission low voltage electron emitterNGK INSULATORS LTD·Filed 2003·Granted Feb 13, 2007·13 cites·21 claims
- 2072US10950858B2IC power source, various IC products provided with same, method for supplying power to IC, and method for driving ICNGK INSULATORS LTD·Filed 2019·Granted Mar 16, 2021·0 cites·14 claims
- 2172US6946800B2Electron emitter, method of driving electron emitter, display and method of driving displayNGK INSULATORS LTD·Filed 2003·Granted Sep 20, 2005·10 cites·67 claims
- 2271US6211853B1Optical waveguide display with voltage-modulated controlled movable actuators which cause light leakage in waveguide at each display element to provide gradation in a display imageNGK INSULATORS LTD·Filed 1997·Granted Apr 3, 2001·35 cites·22 claims
- 2369US7304440B2Electron-emitting apparatusNGK INSULATORS LTD·Filed 2005·Granted Dec 4, 2007·3 cites·8 claims
- 2469US6975074B2Electron emitter comprising emitter section made of dielectric materialNGK INSULATORS LTD·Filed 2003·Granted Dec 13, 2005·7 cites·16 claims
- 2569US2024186593A1Remote monitoring system and maintenance method for item and/or batteryNGK INSULATORS LTD·Filed 2024·Application pending·0 cites
- 2668US7379037B2Display apparatus, method of driving display apparatus, electron emitter, method of driving electron emitter, apparatus for driving electron emitter, electron emission apparatus, and method of driving electron emission apparatusNGK INSULATORS LTD·Filed 2004·Granted May 27, 2008·10 cites·16 claims
- 2768US6281868B1DisplayNGK INSULATORS LTD·Filed 1998·Granted Aug 28, 2001·31 cites·49 claims
- 2867US6323833B1Optical waveguide display with movable actuators which cause light leakage in waveguide at each display elements to provide gradation in a display image by temporal subfield modulationNGK INSULATORS LTD·Filed 1998·Granted Nov 27, 2001·30 cites·60 claims
- 2966US6565331B1PumpNGK INSULATORS LTD·Filed 1999·Granted May 20, 2003·18 cites·22 claims
- 3065US7288881B2Electron emitter and light emission elementNGK INSULATORS LTD·Filed 2003·Granted Oct 30, 2007·5 cites·13 claims
- 3165US6508411B1Method of driving liquid-drop spraying deviceNGK INSULATORS LTD·Filed 2000·Granted Jan 21, 2003·10 cites·4 claims
- 3264US6434028B1DC to DC converterNGK INSULATORS LTD·Filed 2001·Granted Aug 13, 2002·17 cites·14 claims
- 3363US11105486B2Optic and illumination deviceNGK INSULATORS LTD·Filed 2020·Granted Aug 31, 2021·0 cites·18 claims
- 3463US9685680B2Method of using all-solid-state batteryNGK INSULATORS LTD·Filed 2016·Granted Jun 20, 2017·0 cites·29 claims
- 3562US7336026B2High efficiency dielectric electron emitterNGK INSULATORS LTD·Filed 2004·Granted Feb 26, 2008·4 cites·6 claims
- 3662US6936972B2Electron-emitting element and field emission display using the sameNGK INSULATORS LTD·Filed 2002·Granted Aug 30, 2005·7 cites·32 claims
- 3761US11114595B2Optical component and transparent bodyNGK INSULATORS LTD·Filed 2019·Granted Sep 7, 2021·0 cites·12 claims
- 3861US7109962B2Display deviceNGK INSULATORS LTD·Filed 2003·Granted Sep 19, 2006·8 cites·19 claims
- 3960US10995934B2Optical component including a translucent substrate for adjustable light scattering and lighting device including the sameNGK INSULATORS LTD·Filed 2019·Granted May 4, 2021·0 cites·11 claims
- 4059US7651655B2Production methods of dielectric layer and dielectric element, dielectric element, and piezoelectric transformerNGK INSULATORS LTD·Filed 2005·Granted Jan 26, 2010·1 cites·9 claims
- 4159US2024248122A1Communication apparatus, smart meter, and secondary batteryNGK INSULATORS LTD·Filed 2024·Application pending·0 cites
- 4258USRE40489EDisplay-driving device and display-driving method performing gradation control based on a temporal modulation systemNGK INSULATORS LTD·Filed 2004·Granted Sep 9, 2008·4 cites·66 claims
- 4356US12278317B2Transparent sealing member and optical componentNGK INSULATORS LTD·Filed 2021·Granted Apr 15, 2025·0 cites·8 claims
- 4455US11112086B2Phosphor element and lighting deviceNGK INSULATORS LTD·Filed 2018·Granted Sep 7, 2021·0 cites·5 claims
- 4555US6545421B1Current controlling elementNGK INSULATORS LTD·Filed 2000·Granted Apr 8, 2003·4 cites·22 claims
- 4654US7474060B2Light sourceNGK INSULATORS LTD·Filed 2004·Granted Jan 6, 2009·3 cites·24 claims
- 4754US2006132052A1Electron-emitting apparatus and method for emitting electronsNGK INSULATORS LTD·Filed 2005·Application pending·0 cites
- 4853US7088049B2Electron-emitting device and field emission display using the sameNGK INSULATORS LTD·Filed 2001·Granted Aug 8, 2006·2 cites·31 claims
- 4952US11014855B2Transparent AlN sintered body and method for producing the sameNGK INSULATORS LTD·Filed 2019·Granted May 25, 2021·0 cites·11 claims
- 5052US6366152B1Vector-signal processing circuitNGK INSULATORS LTD·Filed 2000·Granted Apr 2, 2002·2 cites·2 claims
Showing the top 50 of 97 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →