KT

Keiko Takaoka

CC C-Eng Co.: 1 patents #3 of 5Top 60%
Overall (All Time): #3,120,635 of 4,157,543Top 80%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8807267 Self resonance-type sound-producing speaker and method of placing thereof Harumi Iwata 2014-08-19