HK

Hirofumi KOJIMA

NI Nidec: 2 patents #402 of 976Top 45%
MC Mitsubishi Electric Semiconductor Software Co.: 1 patents #33 of 117Top 30%
MD Mitsubisih Denki: 1 patents #26 of 381Top 7%
Overall (All Time): #1,552,034 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8215842 Dynamic fluid pressure bearing, spindle motor, disk drive apparatus and method for manufacturing the dynamic fluid pressure bearing Tetsuya Maruyama, Makoto Kutsukake, Michihiro Ito, Masayoshi Saichi 2012-07-10
8169738 Fluid dynamic bearing mechanism including communicating channel, spindle motor, and disk drive apparatus Atsushi Yawata, Yoichi Sekii, Junya Mizukami, Tetsuya Maruyama 2012-05-01
5841157 Semiconductor integrated circuit including a high density cell Yutaka Kamakura 1998-11-24