SA

Shigeru Arai

Fujitsu Limited: 2 patents #317 of 1,515Top 25%
Overall (1989): #16,138 of 140,708Top 15%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4888752 Focusing and tracking servo system for controlling the projection of an optical beam on an optical disk — 1989-12-19
4855983 Apparatus for recording and reading an optical disk, having reduced offset in its tracking error signal — 1989-08-08