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Yotsuo Yahisa

HI Hitachi: 3 patents #420 of 3,950Top 15%
📍 Fuchu, JP: #10 of 83 inventorsTop 15%
Overall (2002): #17,982 of 266,432Top 7%
3
Patents 2002

Issued Patents 2002

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6403240 Magnetic recording media and magnetic recording system using the same Tetsuya Kanbe, Akira Ishikawa, Ichiro Tamai, Yuzuru Hosoe, Kiwamu Tanahashi +7 more 2002-06-11
6372367 Magnetic recording medium, method for producing the same and magnetic recording apparatus using the same Yoshibumi Matsuda, Hiroyuki Suzuki, Koji Sakamoto, Yoko Ogawa, Hiroshi Tani +3 more 2002-04-16
6335103 Magnetic recording media for longitudinal recording Hiroyuki Suzuki, Yoshihiro Shiroishi, Sadao Hishiyama, Tomoyuki Ohno, Yoshibumi Matsuda +5 more 2002-01-01