SH

Sadao Hishiyama

HI Hitachi: 2 patents #339 of 2,942Top 15%
Overall (1997): #25,015 of 185,788Top 15%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5665478 Magnetic recording media for longitudinal recording Hiroyuki Suzuki, Yoshihiro Shiroishi, Tomoyuki Ohno, Yotsuo Yahisa, Yoshibumi Matsuda +5 more 1997-09-09
5605733 Magnetic recording medium, method for its production, and system for its use Akira Ishikawa, Tomoo Yamamoto, Yoshihiro Shiroishi, Tomoyuki Ohno, Yotsuo Yahisa +1 more 1997-02-25