Inventor · disambiguated record
Masaaki Fukuda
Also filed as: FUKUDA MASAAKI
53 granted patents·12 pending applications·1,071 citations·filing 1973–2022
98Inventor score
Files withFUJI PHOTO OPTICAL CO LTD16HOYA CORP13OHCERA CO LTD8FUKUDA TSUTOMU3JAPAN BROADCASTING CORP3
Top patents by PatentIndex Score
65 records- 0196US3936595ASignal transmission system for transmitting programed information such as programed instructionJAPAN BROADCASTING CORP·Filed 1973·Granted Feb 3, 1976·145 cites·24 claims
- 0295US6055111APlastic lens and method of making a plastic lensFUJI PHOTO OPTICAL CO LTD·Filed 1998·Granted Apr 25, 2000·110 cites·5 claims
- 0395US3988528ASignal transmission system for transmitting a plurality of information signals through a plurality of transmission channelsJAPAN BROADCASTING CORP·Filed 1973·Granted Oct 26, 1976·133 cites·13 claims
- 0494US5185092ALubricating oil for refrigeratorTONEN CORP·Filed 1991·Granted Feb 9, 1993·100 cites·20 claims
- 0594US4146854AHigh frequency attenuator using ferrite beadsTDK ELECTRONICS CO LTD·Filed 1977·Granted Mar 27, 1979·46 cites·7 claims
- 0688US7166552B2Method for producing aluminum magnesium titanate sintered productOHCERA CO LTD·Filed 2003·Granted Jan 23, 2007·31 cites·5 claims
- 0785US10646110B2Endoscope system that displays two still images of a subject illuminated by two types of lights having different wavelength bandsHOYA CORP·Filed 2016·Granted May 12, 2020·6 cites·5 claims
- 0885US5936782AObjective lens for a pickup optical systemFUJI PHOTO OPTICAL CO LTD·Filed 1998·Granted Aug 10, 1999·42 cites·11 claims
- 0985US3991265ASignal editing and processing apparatusHITACHI ELECTRONICS·Filed 1974·Granted Nov 9, 1976·29 cites·10 claims
- 1083US7011788B2Method for producing aluminum titanate sintered objectOHCERA CO LTD·Filed 2001·Granted Mar 14, 2006·20 cites·3 claims
- 1183US6403019B1Process for preparing sintered body of aluminum titanateFiled 2000·Granted Jun 11, 2002·24 cites·5 claims
- 1280US3932698AMultiplex signal transmission systemJAPAN BROADCASTING CORP·Filed 1973·Granted Jan 13, 1976·22 cites·21 claims
- 1379US9949625B2Electronic endoscopeHOYA CORP·Filed 2013·Granted Apr 24, 2018·3 cites·5 claims
- 1479US5982565APlastic lens and method of making the sameFUJI PHOTO OPTICAL CO LTD·Filed 1998·Granted Nov 9, 1999·37 cites·5 claims
- 1578US7148168B2Method for producing aluminum titanate sintered compactOHCERA CO LTD·Filed 2003·Granted Dec 12, 2006·14 cites·5 claims
- 1677US11341680B2Gaze point estimation processing apparatus, gaze point estimation model generation apparatus, gaze point estimation processing system, and gaze point estimation processing methodPREFERRED NETWORKS INC·Filed 2019·Granted May 24, 2022·2 cites·20 claims
- 1776US8557216B2Magnesium aluminum titanate crystal structure and method for producing sameFUKUDA TSUTOMU·Filed 2005·Granted Oct 15, 2013·4 cites·26 claims
- 1876US6822803B2Optical component with multiple glass optical elements and manufacturing method thereofFUJI PHOTO OPTICAL CO LTD·Filed 2003·Granted Nov 23, 2004·18 cites·6 claims
- 1976US5995304APlastic lensFUJI PHOTO OPTICAL CO LTD·Filed 1998·Granted Nov 30, 1999·43 cites·3 claims
- 2076US5905599AOptical lens having a hygroscopicity adjusting partFUJI PHOTO OPTICAL CO LTD·Filed 1998·Granted May 18, 1999·43 cites·6 claims
- 2174US11748904B2Gaze point estimation processing apparatus, gaze point estimation model generation apparatus, gaze point estimation processing system, and gaze point estimation processing methodPREFERRED NETWORKS INC·Filed 2022·Granted Sep 5, 2023·0 cites·26 claims
- 2274US10610091B2Endoscope light source device and endoscope systemHOYA CORP·Filed 2017·Granted Apr 7, 2020·2 cites·20 claims
- 2373US9201894B2Data distribution systemFUKUDA MASAAKI·Filed 2009·Granted Dec 1, 2015·7 cites·7 claims
- 2471US7550025B2Honeycomb filter for clarifying exhaust gas and method for manufacture thereofOHCERA CO LTD·Filed 2004·Granted Jun 23, 2009·16 cites·20 claims
- 2568US10575718B2Endoscope systemHOYA CORP·Filed 2017·Granted Mar 3, 2020·1 cites·20 claims
- 2668USRE42352EMethod for producing aluminum magnesium titanate sintered productOHCERA CO LTD·Filed 2003·Granted May 10, 2011·8 cites·8 claims
- 2764US7575792B2Honeycomb filter for clarifying exhaust gas and method for manufacture thereofOHCERA CO LTD·Filed 2004·Granted Aug 18, 2009·7 cites·6 claims
- 2864US6010647AMultifocal lens and method of making the sameFUJI PHOTO OPTICAL CO LTD·Filed 1998·Granted Jan 4, 2000·21 cites·2 claims
- 2962US6078430AOptical lens and method of making the sameFUJI PHOTO OPTICAL CO LTD·Filed 1998·Granted Jun 20, 2000·21 cites·6 claims
- 3061US6008955AOptical lensFUJI PHOTO OPTICAL CO LTD·Filed 1998·Granted Dec 28, 1999·23 cites·4 claims
- 3160US6088160ADiffractive optical elementFUJI PHOTO OPTICAL CO LTD·Filed 1998·Granted Jul 11, 2000·22 cites·9 claims
- 3259US6008957AOptical lens and method of making the sameFUJI PHOTO OPTICAL CO LTD·Filed 1998·Granted Dec 28, 1999·13 cites·13 claims
- 3358US11923118B2Coil component and method of manufacturing coil componentMURATA MANUFACTURING CO·Filed 2020·Granted Mar 5, 2024·0 cites·13 claims
- 3457US10986988B2Electronic endoscopeHOYA CORP·Filed 2018·Granted Apr 27, 2021·0 cites·7 claims
- 3557US10932660B2Endoscope light source device and endoscope systemHOYA CORP·Filed 2020·Granted Mar 2, 2021·0 cites·19 claims
- 3657USRE42646EMethod for producing aluminum titanate sintered compactOHCERA CO LTD·Filed 2003·Granted Aug 23, 2011·3 cites·7 claims
- 3755US8685363B2Honeycomb carrier for exhaust gas clarification catalyst and method for production thereofFUKUDA TSUTOMU·Filed 2004·Granted Apr 1, 2014·2 cites·15 claims
- 3855US2013345043A1Magnesium aluminum titanate crystal structure and method for producing sameFUKUDA TSUTOMU·Filed 2013·Application pending·0 cites
- 3953US5975882AMolded optical component with gate stubs removed from peripheral rim portionsFUJI PHOTO OPTICAL CO LTD·Filed 1997·Granted Nov 2, 1999·17 cites·1 claims
- 4052US11776730B2Coil component and drum-like coreMURATA MANUFACTURING CO·Filed 2020·Granted Oct 3, 2023·0 cites·25 claims
- 4149US10827914B2Endoscope system and characteristic amount calculation methodHOYA CORP·Filed 2017·Granted Nov 10, 2020·0 cites·17 claims
- 4248US8914337B2Data distribution systemFUKUDA MASAAKI·Filed 2009·Granted Dec 16, 2014·0 cites·15 claims
- 4348US2007019511A1Recording apparatus, recording methods, reading apparatus reading methods and programsSONY CORP·Filed 2006·Application pending·0 cites
- 4448US2007014198A1Recording device, recording method, recording program, and program recording mediumSONY CORP·Filed 2006·Application pending·0 cites
- 4548US2007122105A1Recording device, method thereof, program product and program recording mediumSONY CORP·Filed 2006·Application pending·0 cites
- 4646US8520478B2Readout device, readout method, program, and program recording mediumISOZAKI MASAAKI·Filed 2006·Granted Aug 27, 2013·0 cites·11 claims
- 4746US7110182B2Glass sheet incorporating a plurality of optical elements and method for manufacturing the sameFUJINON CORP·Filed 2003·Granted Sep 19, 2006·1 cites·6 claims
- 4846US6034827AOptical lensFUJI PHOTO OPTICAL CO LTD·Filed 1998·Granted Mar 7, 2000·12 cites·5 claims
- 4946US2007074992A1Capsule retrieve sheet and capsule retrieve tool created therefromPENTAX CORP·Filed 2006·Application pending·0 cites
- 5046US2017303767A1Endoscope for storing imagesHOYA CORP·Filed 2017·Application pending·0 cites
Showing the top 50 of 65 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →