Inventor
HANAYAMA KATSUTOKI
JP8 patents
⚠️ This page may combine multiple inventors who share the name “HANAYAMA KATSUTOKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
YAMAHA CORP
6 patentsUS9774937B2Sep 26, 2017
Speaker unit
YAMAHA CORP5 citations70
US12225342B2Feb 11, 2025
Coaxial speaker horn, and coaxial speaker
YAMAHA CORP2 citations65
US10972818B2Apr 6, 2021
Mounting tool and speaker device
YAMAHA CORP1 citations60
US10924831B2Feb 16, 2021
Speaker device
YAMAHA CORP0 citations49
US10516926B2Dec 24, 2019
Speaker unit mounting bracket, and installation speaker using the same
YAMAHA CORP0 citations45
US9843848B2Dec 12, 2017
Speaker unit
YAMAHA CORP0 citations38