Inventor · disambiguated record
Masayoshi Hirai
Also filed as: HIRAI MASAYOSHI
19 granted patents·3 pending applications·484 citations·filing 1982–2018
95Inventor score
Files withFUJI PHOTO FILM CO LTD12MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5PANASONIC CORP4DENSO TEN LTD1
Top patents by PatentIndex Score
22 records- 0197US4792822ACamera with changeable focal lengthFUJI PHOTO FILM CO LTD·Filed 1987·Granted Dec 20, 1988·223 cites·4 claims
- 0288US7705789B2Portable wireless devicePANASONIC CORP·Filed 2006·Granted Apr 27, 2010·17 cites·4 claims
- 0384US4771302ACamera with orientable taking lens and a device for attaching a flash unitFUJI PHOTO FILM CO LTD·Filed 1986·Granted Sep 13, 1988·23 cites·4 claims
- 0480US4751546ADisplay device for camerasFUJI PHOTO FILM CO LTD·Filed 1986·Granted Jun 14, 1988·20 cites·12 claims
- 0577US4971427AZoom lens drive mechanism of a cameraFUJI PHOTO FILM CO LTD·Filed 1989·Granted Nov 20, 1990·37 cites·8 claims
- 0676US4521183ACooking applianceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1982·Granted Jun 4, 1985·28 cites·2 claims
- 0775US7840243B2Antenna arrangement in a mobile terminal apparatusPANASONIC CORP·Filed 2006·Granted Nov 23, 2010·9 cites·6 claims
- 0875US4887109AViewfinder for a camera with changeable focal lengthFUJI PHOTO FILM CO LTD·Filed 1988·Granted Dec 12, 1989·34 cites·10 claims
- 0973US7626554B2Collapsible mobile radio devicePANASONIC CORP·Filed 2005·Granted Dec 1, 2009·8 cites·5 claims
- 1073US4720718AReflex cameraFUJI PHOTO FILM CO LTD·Filed 1987·Granted Jan 19, 1988·13 cites·10 claims
- 1172US7130591B2Cell phoneMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Oct 31, 2006·23 cites·16 claims
- 1267US7787915B2Folding type portable wireless unitPANASONIC CORP·Filed 2005·Granted Aug 31, 2010·6 cites·11 claims
- 1360US4723141ACamera having a provision for multiple exposuresFUJI PHOTO FILM CO LTD·Filed 1986·Granted Feb 2, 1988·8 cites·10 claims
- 1456US4958178ACollapsible mounting type camera with zoom lensFUJI PHOTO FILM CO LTD·Filed 1988·Granted Sep 18, 1990·18 cites·14 claims
- 1553US4903059ACameraFUJI PHOTO FILM CO LTD·Filed 1988·Granted Feb 20, 1990·6 cites·10 claims
- 1649US4720721AFilm wind-up control apparatus for a cameraFUJI PHOTO FILM CO LTD·Filed 1987·Granted Jan 19, 1988·5 cites·7 claims
- 1745US5671458APhotographic camera with exposure size corrected for position of exit pupil of taking lensFUJI PHOTO FILM CO LTD·Filed 1996·Granted Sep 23, 1997·3 cites·4 claims
- 1843US10715086B2Amplifier circuitDENSO TEN LTD·Filed 2018·Granted Jul 14, 2020·0 cites·7 claims
- 1943US2008001830A1Folding Portable Wireless DeviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Application pending·0 cites
- 2039US4720719AFilm wind-up apparatusFUJI PHOTO FILM CO LTD·Filed 1987·Granted Jan 19, 1988·3 cites·5 claims
- 2138US2007229373A1Folding Portable Wireless ApparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Application pending·0 cites
- 2234US2002013159A1Portable radio device having a structure for improving antenna characteristicMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Masayoshi Hirai 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 →