TH

Tetsuya Hamaguchi

HI Hitachi: 3 patents #512 of 4,225Top 15%
📍 Ibaraki, JP: #40 of 785 inventorsTop 6%
Overall (2003): #20,724 of 273,478Top 8%
3
Patents 2003

Issued Patents 2003

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6636385 Magnetic disc apparatus having actuator for head positioning mechanism Kei Yasuna, Takashi Yamaguchi, Keiko Watanabe 2003-10-21
6597532 Information recording disk apparatus Kazuaki Usui, Keiko Watanabe, Kei Yasuna, Tsuyoshi Arai 2003-07-22
6549377 Magnetic disk drive with a movable ramp mechanism for relieving impact upon loading and unloading Takeshi Yoshida, Tomokazu Ishii, Shozo Saegusa, Shinsuke Higuchi 2003-04-15