Inventor
MATSUBARA YOSHIKATSU
JP7 patents
⚠️ This page may combine multiple inventors who share the name “MATSUBARA YOSHIKATSU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TAKIGAWA SOUICHI
3 patentsUS8320601B2Nov 27, 2012
Earphone device and sound generating apparatus equipped with the same
TAKIGAWA SOUICHI63 citations95
US8090134B2Jan 3, 2012
Earphone device, sound tube forming a part of earphone device and sound generating apparatus
TAKIGAWA SOUICHI60 citations93
US8270657B2Sep 18, 2012
Earphone device and sound generating apparatus equipped with the same
TAKIGAWA SOUICHI8 citations80