YH

Yoshiyuki Hirayama

HI Hitachi: 3 patents #329 of 3,771Top 9%
HG HGST: 1 patents #12 of 72Top 20%
📍 Kokubunji, JP: #9 of 127 inventorsTop 8%
Overall (2004): #10,453 of 270,089Top 4%
4
Patents 2004

Issued Patents 2004

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6830837 Magnetic recording medium and magnetic recording apparatus Tetsuya Kanbe, Hiroyuki Suzuki, Yotsuo Yahisa, Hidekazu Kashiwase 2004-12-14
6770389 Perpendicular magnetic recording medium and magnetic recording apparatus Masaaki Futamoto, Yukio Honda, Atsushi Kikukawa 2004-08-03
6716516 Magnetic recording medium and magnetic recording apparatus using the same Masaaki Futamoto, Nobuyuki Inaba, Yukio Honda, Kazuetsu Yoshida, Kenya Ito 2004-04-06
6686070 Perpendicular magnetic recording media, magnetic recording apparatus Masaaki Futamoto, Kazuetsu Yoshida, Yukio Honda, Atsushi Kikugawa 2004-02-03