Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6739378 | Internal chill casting method for manufacturing a cast product containing a pipe therein | Kaoru Sugita, Yoshihiro Tajima, Masayuki Yasuda, Masahide Hamada, Yoshiki Matsuzaki | 2004-05-25 |
| 6690548 | Ramp for use in information recording disk apparatus, and information recording disk apparatus | Ichiroh Koyanagi, Yuhji Kobayashi, Tsai-Wei Wu | 2004-02-10 |