DY

Daisuke Yamaya

SI Seiko Instruments: 3 patents #474 of 1,437Top 35%
Overall (All Time): #1,610,752 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6664753 Apparatus of controlling to rotate step motor — 2003-12-16
6580666 Electronic timepiece and method of driving the electronic timepiece — 2003-06-17
6327222 Electronic watch — 2001-12-04