YS

Yasunari Sugiyama

SO Sony: 2 patents #161 of 1,361Top 15%
Overall (1997): #19,408 of 185,788Top 15%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5666249 Magnetic head and method for manufacture thereof Hiroyuki Ohmori, Tetsuya Yamamoto 1997-09-09
5654844 Magnetic head assembly having two heads with the magnetic layer of one head angled between 80 to 100 relative to the gap of the other head, and method and apparatus using same Hiroyuki Ohmori, Tetsuya Yamamoto, Mitsuharu Shoji 1997-08-05