Inventor
NAGENO KOJI
JP58 patents
⚠️ This page may combine multiple inventors who share the name “NAGENO KOJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
39 patentsUS6738487B1May 18, 2004
Earphone
SONY CORP166 citations99
US8009853B2Aug 30, 2011
Headphone device
SONY CORP63 citations98
US6728388B1Apr 27, 2004
Headphone
SONY CORP125 citations98
US6560346B2May 6, 2003
Pipe microphone device
SONY CORP164 citations98
US5949896ASep 7, 1999
Earphone
SONY CORP352 citations98
US5406037AApr 11, 1995
Headphone including means for mounting belt-like suspender
SONY CORP251 citations98
US5018599AMay 28, 1991
Headphone device
SONY CORP275 citations98
US6625293B1Sep 23, 2003
Microphone
SONY CORP116 citations97
US5420935AMay 30, 1995
Auricle insertion headphone with improved grill
SONY CORP130 citations97
US6385325B1May 7, 2002
Headphone device
SONY CORP75 citations96
US5844998ADec 1, 1998
Headphone apparatus
SONY CORP60 citations96
US5497427AMar 5, 1996
Headphone
SONY CORP57 citations96
US4736435AApr 5, 1988
Ear piece transducer
SONY CORP106 citations96
US10812926B2Oct 20, 2020
Sound output device, sound generation method, and program
SONY CORP22 citations94
US9020181B2Apr 28, 2015
Earphone device
SONY CORP10 citations93
USRE37398EOct 2, 2001
Headphone
SONY CORP42 citations93
US4874316AOct 17, 1989
Connector apparatus
SONY CORP123 citations93
US7245736B2Jul 17, 2007
Headphone device
SONY CORP20 citations92
US7120268B2Oct 10, 2006
Headphone
SONY CORP41 citations92
US6970572B2Nov 29, 2005
Headphone device
SONY CORP50 citations92
US10685641B2Jun 16, 2020
Sound output device, sound output method, and sound output system for sound reverberation
SONY CORP11 citations86
US10182281B2Jan 15, 2019
Sound output device and sound guiding device
SONY CORP7 citations84
US9491533B2Nov 8, 2016
Earphone device
SONY CORP3 citations84
US11146877B2Oct 12, 2021
Sound output device and sound guiding device
SONY CORP1 citations73
US11037544B2Jun 15, 2021
Sound output device, sound output method, and sound output system
SONY CORP4 citations73
US10659863B2May 19, 2020
Sound output device and sound guiding device
SONY CORP1 citations73
US10524036B2Dec 31, 2019
Wearable device
SONY CORP2 citations73
US10237641B2Mar 19, 2019
Sound output device and sound guiding device
SONY CORP3 citations73
US9918162B2Mar 13, 2018
Processing device and method for improving S/N ratio
SONY CORP2 citations71
US9237392B2Jan 12, 2016
Earhole-wearable sound collection device, signal processing device, and sound collection method
SONY CORP3 citations71
US9949007B2Apr 17, 2018
Earphone device
SONY CORP0 citations63
US9826300B2Nov 21, 2017
Earphone device
SONY CORP0 citations63
US9232294B2Jan 5, 2016
Earphone device
SONY CORP1 citations63
US9179212B2Nov 3, 2015
Earphone device
SONY CORP1 citations63
US9014410B2Apr 21, 2015
Earphone device
SONY CORP1 citations63
US9008345B2Apr 14, 2015
Earphone device
SONY CORP1 citations63
US11070910B2Jul 20, 2021
Processing device and a processing method for voice communication
SONY CORP0 citations61
US10735844B2Aug 4, 2020
Wearable device
SONY CORP0 citations52
US9961428B2May 1, 2018
Earphone device
SONY CORP0 citations52
SONY GROUP CORP
3 patentsUS11375307B2Jun 28, 2022
Earphone device
SONY GROUP CORP0 citations73
US12501208B2Dec 16, 2025
Earhole-wearable sound collection device, signal processing device, and sound collection method
SONY GROUP CORP0 citations61
US11765497B2Sep 19, 2023
Earhole-wearable sound collection device, signal processing device, and sound collection method
SONY GROUP CORP0 citations61
MATSUO TOMOHIRO
2 patentsOOSATO YUUSUKE
2 patentsNAGENO KOJI
2 patentsMUROZAKI KATSUNORI
1 patentNAGUMO TSUTOMU
1 patentShowing the top 50 of 58 patents by PatentIndex Score.