Inventor
IKEGAYA YUJI
JP32 patents
⚠️ This page may combine multiple inventors who share the name “IKEGAYA YUJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
YAMAHA MOTOR CO LTD
21 patentsUS12252227B2Mar 18, 2025
Marine propulsion system and marine vessel
YAMAHA MOTOR CO LTD2 citations74
US11987339B1May 21, 2024
Steering control system of marine vessel, marine vessel and steering control method of marine vessel
YAMAHA MOTOR CO LTD3 citations74
US11731744B2Aug 22, 2023
Control system for marine propulsion device, control method for the same, and marine vessel
YAMAHA MOTOR CO LTD4 citations74
US11993357B2May 28, 2024
Marine propulsion control system and marine vessel capable of performing dynamic positioning control
YAMAHA MOTOR CO LTD2 citations73
US11904989B2Feb 20, 2024
Control device for battery of marine vessel, control method therefor, and marine vessel
YAMAHA MOTOR CO LTD2 citations73
US11447223B2Sep 20, 2022
Control device for battery of marine vessel, control method therefor, and marine vessel
YAMAHA MOTOR CO LTD4 citations73
US12077272B2Sep 3, 2024
System for and method of controlling watercraft including marine propulsion device
YAMAHA MOTOR CO LTD0 citations62
US10894589B1Jan 19, 2021
Ship maneuvering system and ship maneuvering method
YAMAHA MOTOR CO LTD0 citations62
US12528572B2Jan 20, 2026
Watercraft propulsion system, and watercraft
YAMAHA MOTOR CO LTD1 citations54
US11987338B2May 21, 2024
Marine vessel maneuvering system and marine vessel
YAMAHA MOTOR CO LTD0 citations54
US12583572B2Mar 24, 2026
Marine vessel and marine vessel propulsion control system
YAMAHA MOTOR CO LTD0 citations52
US12570382B2Mar 10, 2026
Marine propulsion system and marine vessel
YAMAHA MOTOR CO LTD0 citations52
US12486014B2Dec 2, 2025
Marine propulsion system and marine vessel
YAMAHA MOTOR CO LTD0 citations52
US12459628B2Nov 4, 2025
Marine propulsion system and marine vessel
YAMAHA MOTOR CO LTD0 citations52
US12420899B2Sep 23, 2025
Marine propulsion system and marine vessel
YAMAHA MOTOR CO LTD0 citations52
US12330763B2Jun 17, 2025
Marine vessel propulsion control system and marine vessel
YAMAHA MOTOR CO LTD0 citations52
US12259728B2Mar 25, 2025
Marine vessel propulsion control system and marine vessel
YAMAHA MOTOR CO LTD0 citations52
US12187397B2Jan 7, 2025
System for and method of controlling watercraft
YAMAHA MOTOR CO LTD0 citations52
US12091148B2Sep 17, 2024
System for and method of controlling watercraft
YAMAHA MOTOR CO LTD0 citations52
US11560209B2Jan 24, 2023
Drive source switching system for marine propulsion device including multiple drive sources, and method of switching drive sources of marine propulsion device
YAMAHA MOTOR CO LTD0 citations52
US12084161B2Sep 10, 2024
System for and method of controlling watercraft
YAMAHA MOTOR CO LTD0 citations50
YAMAHA CORP
10 patentsUS4803731AFeb 7, 1989
Reverbation imparting device
YAMAHA CORP33 citations92
US5902951AMay 11, 1999
Chorus effector with natural fluctuation imported from singing voice
YAMAHA CORP26 citations91
US5619579AApr 8, 1997
Reverberation imparting apparatus
YAMAHA CORP16 citations73
US5163018ANov 10, 1992
Digital signal processing circuit for carrying out a convolution computation using circulating coefficients
YAMAHA CORP9 citations73
US5636153AJun 3, 1997
Digital signal processing circuit
YAMAHA CORP17 citations71
US11297419B2Apr 5, 2022
Array microphone and sound collection method
YAMAHA CORP0 citations62
US5148384ASep 15, 1992
Signal processing integrated circuit
YAMAHA CORP4 citations62
US5708842AJan 13, 1998
Apparatus for changing coefficients utilized to perform a convolution operation having address generator which uses initial count number and up/down count inputs received from external
YAMAHA CORP6 citations60
US11102605B2Aug 24, 2021
Audio signal processing apparatus and audio signal processing method
YAMAHA CORP0 citations52
US10869123B2Dec 15, 2020
Array microphone and sound collection method
YAMAHA CORP0 citations52