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Inventor
FUKUSHIMA YOSHINARI
JP
3 patents
⚠️ This page may combine multiple inventors who share the name “FUKUSHIMA YOSHINARI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
D & M HOLDINGS INC
2 patents
US9197959B2
Nov 24, 2015
Headphone device
D & M HOLDINGS INC
21 citations
89
US9398363B2
Jul 19, 2016
Neckband-type earphone
D & M HOLDINGS INC
3 citations
68
FUKUSHIMA YOSHINARI
1 patent
US9332336B2
May 3, 2016
Headphone device
FUKUSHIMA YOSHINARI
2 citations
50