Inventor
OKUMURA YUKIMASA
JP6 patents
⚠️ This page may combine multiple inventors who share the name “OKUMURA YUKIMASA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
YAMAHA CORP
5 patentsUS6949701B2Sep 27, 2005
Drumhead
YAMAHA CORP24 citations89
US6689944B1Feb 10, 2004
Drum acoustic wire and drum
YAMAHA CORP13 citations81
US5587544ADec 24, 1996
Drum
YAMAHA CORP17 citations71
US6762353B2Jul 13, 2004
Percussion instrument head
YAMAHA CORP3 citations60
US10418006B2Sep 17, 2019
Laminated plyboard for musical instrument, method for manufacturing the same, and musical instrument
YAMAHA CORP1 citations59