Inventor
YOSHIDA AZUMI
JP21 patents
⚠️ This page may combine multiple inventors who share the name “YOSHIDA AZUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI HITACHI POWER SYS
7 patentsUS10190433B2Jan 29, 2019
Shaft sealing mechanism
MITSUBISHI HITACHI POWER SYS2 citations72
US10927765B2Feb 23, 2021
Seal segment and rotary machine
MITSUBISHI HITACHI POWER SYS0 citations50
US10731499B2Aug 4, 2020
Seal device for turbine, turbine, and thin plate for seal device
MITSUBISHI HITACHI POWER SYS0 citations40
US10662796B2May 26, 2020
Seal device for turbine, turbine, and thin plate for seal device
MITSUBISHI HITACHI POWER SYS0 citations40
US10196987B2Feb 5, 2019
Shaft sealing mechanism
MITSUBISHI HITACHI POWER SYS0 citations40
US10174844B2Jan 8, 2019
Shaft seal mechanism
MITSUBISHI HITACHI POWER SYS0 citations40
US10876481B2Dec 29, 2020
Seal segment and rotary machine
MITSUBISHI HITACHI POWER SYS0 citations39
MITSUBISHI HEAVY IND LTD
6 patentsUS10519791B2Dec 31, 2019
Shaft sealing device, rotating machine, and method for manufacturing shaft sealing device
MITSUBISHI HEAVY IND LTD3 citations72
US11905838B2Feb 20, 2024
Seal member and rotary machine
MITSUBISHI HEAVY IND LTD0 citations60
US12281708B2Apr 22, 2025
Seal device
MITSUBISHI HEAVY IND LTD0 citations58
US12345335B2Jul 1, 2025
Shaft seal device and rotary machine
MITSUBISHI HEAVY IND LTD0 citations49
US12247490B2Mar 11, 2025
Shaft sealing device and rotary machine
MITSUBISHI HEAVY IND LTD0 citations48
US12460553B2Nov 4, 2025
Sealing device and rotating machine
MITSUBISHI HEAVY IND LTD0 citations45
YAMAHA CORP
4 patentsUS11869473B2Jan 9, 2024
Hollow structure and resonant sound reducing body
YAMAHA CORP3 citations74
US12205570B2Jan 21, 2025
Hollow structure and resonant sound reducing body
YAMAHA CORP0 citations62
US12477283B2Nov 18, 2025
Speaker unit
YAMAHA CORP0 citations59
US10424275B2Sep 24, 2019
Upright piano
YAMAHA CORP0 citations45
MITSUBISHI HITACHI POWER SYS LTD
3 patentsUS11614035B2Mar 28, 2023
Seal segment and rotating machine
MITSUBISHI HITACHI POWER SYS LTD0 citations50
US11319825B2May 3, 2022
Sealing device and rotary machine
MITSUBISHI HITACHI POWER SYS LTD0 citations50
US11293350B2Apr 5, 2022
Seal segment and rotary machine
MITSUBISHI HITACHI POWER SYS LTD0 citations50