YH

Yoshiyuki Hirayama

HI Hitachi: 28 patents #1,022 of 28,497Top 4%
HG HGST: 16 patents #263 of 1,677Top 20%
FI Fujifilm Business Innovation: 7 patents #1,321 of 5,238Top 30%
HB Hgst Netherlands, B.V.: 4 patents #198 of 972Top 25%
FC Furukawa Electric Co.: 4 patents #473 of 2,370Top 20%
ME Meidensha: 1 patents #255 of 555Top 50%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
TI Tokyo Electric Power Company Holdings, Incorporated: 1 patents #245 of 711Top 35%
FS Furukawa Automotive Systems: 1 patents #140 of 269Top 55%
📍 Kokubunji, JP: #11 of 714 inventorsTop 2%
Overall (All Time): #38,150 of 4,157,543Top 1%
61
Patents All Time

Issued Patents All Time

Showing 26–50 of 61 patents

Patent #TitleCo-InventorsDate
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
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
6641901 Perpendicular-magnetic recording media and magnetic recording apparatus Kazuetsu Yoshida, Masaaki Futamoto 2003-11-04
6607849 Magnetic recording medium and magnetic recording apparatus using the same Masaaki Futamoto, Nobuyuki Inaba, Yukio Honda, Kazuetsu Yoshida, Kenya Ito 2003-08-19
6592976 Magnetic recording medium and magnetic recording apparatus using the same Masaaki Futamoto, Nobuyuki Inaba, Yukio Honda, Kazuetsu Yoshida, Kenya Ito 2003-07-15
6562453 Perpendicular magnetic recording medium and magnetic recording apparatus Masaaki Futamoto, Yukio Honda, Atsushi Kikukawa 2003-05-13
6541125 Magnetic recording medium Masaaki Futamoto, Nobuyuki Inaba, Teruaki Takeuchi, Yukio Honda 2003-04-01
6534164 Magnetic recording medium and magnetic recording apparatus using the same Masaaki Futamoto, Nobuyuki Inaba, Yukio Honda, Kazuetsu Yoshida, Kenya Ito 2003-03-18
6528149 Perpendicular-magnetic recording media and magnetic recording apparatus Kazuetsu Yoshida, Masaaki Futamoto 2003-03-04
6447936 Magnetic recording medium and magnetic recording apparatus using the same Masaaki Futamoto, Nobuyuki Inaba, Yukio Honda, Kazuetsu Yoshida, Kenya Ito 2002-09-10
6403203 Magnetic recording medium and magnetic recording apparatus using the same Masaaki Futamoto, Nobuyuki Inaba, Yukio Honda, Kazuetsu Yoshida, Kenya Ito 2002-06-11
6383667 Magnetic recording medium Masaaki Futamoto, Nobuyuki Inaba, Teruaki Takeuchi, Yukio Honda 2002-05-07
6349008 Magnetic recording media, magnetic heads and magnetic read-write apparatus using the same Takanobu Takayama, Kiwamu Tanahashi, Kazuetsu Yoshida, Mikio Suzuki, Masaaki Futamoto +1 more 2002-02-19
6183893 Perpendicular magnetic recording medium and magnetic storage apparatus using the same Masaaki Futamoto, Kenya Ito, Kazuetsu Yoshida, Yukio Honda, Nobuyuki Inaba 2001-02-06
6083599 Perpendicular magnetic recording media and magnetic recording and reproducing apparatus using the same Masaaki Futamoto, Yukio Honda, Kazusuke Yamanaka, Kenya Ito 2000-07-04
5926579 Image processing apparatus capable of properly determining density of a background portion Hiroyoshi Uejo 1999-07-20
5875082 Magnetic recording media, magnetic heads and magnetic read-write apparatus using the same Takanobu Takayama, Kiwamu Tanahashi, Kazuetsu Yoshida, Mikio Suzuki, Masaaki Futamoto +1 more 1999-02-23
5808449 Method and apparatus for detecting islanding operation of dispersed generator Nobuhiro Kuroda, Takaaki Kai, Toshiaki Fujimoto, Haruo Sasaki, Yasutomo Imai +2 more 1998-09-15
5738927 Perpendicular magnetic recording media and magnetic recording device Atsushi Nakamura, Masaaki Futamoto, Mikio Suzuki, Yukio Honda, Takanobu Takayama 1998-04-14
5701505 Image data parallel processing apparatus Shigeki Yamashita, Kazuhiro Suzuki 1997-12-23
5685958 Method of fabricating a magnetic recording medium Masaaki Futamoto, Atsushi Nakamura, Nobuyuki Inaba, Yoshibumi Matsuda, Mikio Suzuki +1 more 1997-11-11