YY

Yasufumi Yumde

HI Hitachi: 1 patents #814 of 2,935Top 30%
Overall (1989): #41,590 of 140,708Top 30%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4843493 Rotary head type magnetic recording and reproducing apparatus and method of producing tracking control signals therefor Takashi Furuhata, Fujio Okamura, Takaharu Noguchi, Toshifumi Shibuya, Katsuo Mohri +2 more 1989-06-27