YH

Yoshiyuki Hirayama

HI Hitachi: 2 patents #478 of 3,189Top 15%
HG HGST: 2 patents #4 of 133Top 4%
FI Fujifilm Business Innovation: 1 patents #141 of 425Top 35%
📍 Kokubunji, JP: #3 of 125 inventorsTop 3%
Overall (2005): #5,168 of 245,428Top 3%
5
Patents 2005

Issued Patents 2005

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6943814 Gradation display method Mitsuru Iioka, Noribumi Sato, Takashi Nakajima 2005-09-13
6916557 Perpendicular magnetic recording media Hiroyuki Nakagawa, Hiroaki Nemoto, Ichiro Tamai, Ikuko Takekuma 2005-07-12
6894488 Method for testing or recording servo signal on perpendicular magnetic recording media Atsushi Kikugawa, Kiwamu Tanahashi, Yukio Honda, Masaaki Futamoto 2005-05-17
6884521 Magnetic recording medium with controlled grain diameters and method for manufacturing the same Yoshio Takahashi, Yotsuo Yahisa 2005-04-26
6852398 Perpendicular-magnetic recording media and magnetic recording apparatus Kazuetsu Yoshida, Masaaki Futamoto 2005-02-08