IK

Ichiroh Koyanagi

IBM: 9 patents #11,918 of 70,183Top 20%
HG HGST: 1 patents #1,032 of 1,677Top 65%
NO Nok: 1 patents #382 of 725Top 55%
Overall (All Time): #523,595 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
6785090 Disk clamp for disk recording apparatus and disk recording apparatus Tatsuo Nakamoto, Kohichi Takeuchi 2004-08-31
6690548 Ramp for use in information recording disk apparatus, and information recording disk apparatus Yuhji Kobayashi, Tsai-Wei Wu, Tetsuo Ishikawa 2004-02-10
6519111 Disk drive apparatus, hard disk drive, filter, and method for inspecting disk drive apparatus Yoshihiro Hirasaka, Kohichi Takeuchi 2003-02-11
6487051 Ramp for information recording disk apparatus Tsai-Wei Wu 2002-11-26
6078474 Ramp for use with a data storage device and a data storage device Yuji Kobayashi, Fuminori Sai, Thomas R. Albrecht 2000-06-20
5760997 Flexible cable structure for magnetic disk drives Hiroshi Matsuda, Shinichi Matsuzaki, Koji Serizawa, Keishi Takahashi 1998-06-02
5640290 Shock-resistant structure for magnetic disk drive Vijayeshwar D. Khanna, Suresh Kumar, Hiroshi Matsuda, Muthuthamby Sri-Jayantha 1997-06-17
5491608 Shockproof and portable disk storage apparatus having shock absorbers on all sides of a head/disk enclosure and a coplanar electronic card Makoto Ohtuki, Fumitomo Ohsawa, Takayuki Satoh 1996-02-13
D358138 Portable hard disk drive Yoshiyuki Manabe, Makoto Ohtsuki, Hisashi Shima 1995-05-09
5402308 Portable disk storage apparatus using flexible cable for shock absorption Makoto Ohtuki, Fumitomo Ohsawa, Takayuki Satoh 1995-03-28