KY

Keiichi Yamauchi

Pioneer Electronic: 2 patents #32 of 240Top 15%
Overall (1989): #22,209 of 140,708Top 20%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4817068 Optical disk and optical disk apparatus with pause mode protection feature — 1989-03-28
4800550 Multi-format optical disk recording/reproducing system — 1989-01-24