SK

Susumu KAWASHIMA

SL Semiconductor Energy Laboratory: 109 patents #89 of 1,113Top 8%
Yamaha: 12 patents #185 of 2,001Top 10%
NS Nippon Gakki Seizo: 3 patents #74 of 332Top 25%
MC Meiji Milk Products Co.: 2 patents #30 of 143Top 25%
TK Trio Kabushiki Kaisha: 1 patents #22 of 70Top 35%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #8,747 of 4,157,543Top 1%
127
Patents All Time

Issued Patents All Time

Showing 126–127 of 127 patents

Patent #TitleCo-InventorsDate
4553465 Electronic musical instrument producing bass and chord tones utilizing channel assignment Shigeru Yamada 1985-11-19
4543869 Electronic musical instrument producing chord tones utilizing channel assignment Shigeru Yamada 1985-10-01