P

Inventor

TACHI RYOSUKE

JP33 patents
⚠️ This page may combine multiple inventors who share the name “TACHI RYOSUKE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ALPS ALPINE CO LTD

19 patents
US11805367B2Oct 31, 2023

Speaker

ALPS ALPINE CO LTD2 citations71
US12035115B2Jul 9, 2024

Speaker distortion correction device

ALPS ALPINE CO LTD4 citations70
US12513440B2Dec 30, 2025

Speaker

ALPS ALPINE CO LTD0 citations62
US11622195B2Apr 4, 2023

Active noise control system utilizing noise cancellation sounds

ALPS ALPINE CO LTD1 citations60
US12262194B2Mar 25, 2025

Dynamic acoustic control systems and methods

ALPS ALPINE CO LTD1 citations54
US12499743B2Dec 16, 2025

Signal processing for haptic seating systems

ALPS ALPINE CO LTD0 citations52
US12464284B2Nov 4, 2025

Communication support system

ALPS ALPINE CO LTD0 citations52
US12356145B2Jul 8, 2025

Speaker displacement detection calibration method and speaker displacement detection apparatus

ALPS ALPINE CO LTD0 citations52
US12112733B2Oct 8, 2024

Communication support system

ALPS ALPINE CO LTD0 citations52
US11956604B2Apr 9, 2024

In-vehicle communication support system

ALPS ALPINE CO LTD0 citations52
US11922916B2Mar 5, 2024

Active noise control system

ALPS ALPINE CO LTD0 citations52
US11756523B2Sep 12, 2023

Active noise control system

ALPS ALPINE CO LTD0 citations52
US11482204B2Oct 25, 2022

Active noise control system

ALPS ALPINE CO LTD0 citations50
US11462202B2Oct 4, 2022

Active noise control system based on head position

ALPS ALPINE CO LTD0 citations50
US11462203B2Oct 4, 2022

In-vehicle communication support system

ALPS ALPINE CO LTD0 citations50
US11462205B2Oct 4, 2022

In-vehicle communication support system

ALPS ALPINE CO LTD0 citations50
US11463808B2Oct 4, 2022

Active noise control system

ALPS ALPINE CO LTD0 citations50
US12394403B2Aug 19, 2025

Active noise control system

ALPS ALPINE CO LTD0 citations48
US12052549B2Jul 30, 2024

Speaker

ALPS ALPINE CO LTD0 citations47

ALPINE ELECTRONICS INC

6 patents

NIPPON DENSO CO

4 patents

DENSO CORP

2 patents

JFE STEEL CORP

2 patents