YI

Yukio Ikehata

DS Daini Seikosha: 1 patents #64 of 155Top 45%
SE Seiko Instruments & Electronics: 1 patents #72 of 164Top 45%
Overall (All Time): #2,353,221 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4516863 Electronic timepiece operable in continuous and stepwise modes — 1985-05-14
4415276 Electronic timepiece Kenichi Ono 1983-11-15