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Yotsuo Yahisa

HI Hitachi: 5 patents #207 of 4,225Top 5%
📍 Fuchu, JP: #3 of 85 inventorsTop 4%
Overall (2003): #7,146 of 273,478Top 3%
5
Patents 2003

Issued Patents 2003

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6627253 Magnetic recording media for longitudinal recording, process for producing the same and magnetic memory apparatus Hiroyuki Suzuki, Yoshihiro Shiroishi, Sadao Hishiyama, Tomoyuki Ohno, Yoshibumi Matsuda +5 more 2003-09-30
6623873 Magnetic recording medium and magnetic disk apparatus using the same Yoshibumi Matsuda, Koji Sakamoto, Yuzuru Hosoe, Akira Kato 2003-09-23
6623874 Magnetic recording medium and magnetic recording apparatus Tetsuya Kanbe, Yoshibumi Matsuda, Jo Inagaki, Koji Sakamoto 2003-09-23
6596420 Magnetic recording media and magnetic recording system using the same Tetsuya Kanbe, Akira Ishikawa, Ichiro Tamai, Yuzuru Hosoe, Kiwamu Tanahashi +7 more 2003-07-22
6544667 Magnetic recording medium, producing method of the same and magnetic recording system Yuzuru Hosoe, Yoshibumi Matsuda, Kiwamu Tanahashi, Hiroyuki Suzuki, Koji Sakamoto +1 more 2003-04-08