YT

Yasutaka Tarusawa

SS Suwa Seikosha: 2 patents #49 of 220Top 25%
Overall (All Time): #2,372,626 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4201043 Wristwatch calculator imput key positioning assembly — 1980-05-06
4184321 Electronic wristwatch with calculator having improved conductive packing sheet switch element — 1980-01-22