HK

Hidekazu Kohira

HI Hitachi: 3 patents #512 of 4,225Top 15%
📍 Ibaraki, JP: #40 of 785 inventorsTop 6%
Overall (2003): #29,693 of 273,478Top 15%
3
Patents 2003

Issued Patents 2003

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6657820 Magnetic head slider Masaaki Matsumoto, Hideaki Tanaka, Akira Matsuda, Shozo Saegusa 2003-12-02
6628480 Magnetic head slider having optimized ratio of negative pressure recess to front step bearing Masaaki Matsumoto, Kiyoshi Hashimoto, Masayoshi Endo, Akio Takakura, Yoshinori Takeuchi +2 more 2003-09-30
6556381 Magnetic disk device and magnetic head slider Masaaki Matsumoto, Hideaki Tanaka, Teruyoshi Higashiya, Kiyoshi Hashimoto, Akira Matsuda +1 more 2003-04-29