Issued Patents 2002
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6468441 | Mn-Zn ferrite and production process thereof | Osamu Yamada, Kiyoshi Ito | 2002-10-22 |
| 6461531 | Mn-Zn ferrite and production process thereof | Osamu Yamada, Kiyoshi Ito | 2002-10-08 |
| 6440323 | Mn-Zn ferrite and production process thereof | Osamu Yamada, Kiyoshi Ito | 2002-08-27 |
| 6436308 | Mn-Zn ferrite and production process thereof | Osamu Yamada, Kiyoshi Ito | 2002-08-20 |
| 6403017 | Process for producing Mn-Zn ferrite | Osamu Yamada, Koji Honda, Shunji Kawasaki | 2002-06-11 |
| 6340055 | Heat exchanger having multi-hole structured tube | Yoshiyuki Yamauchi, Ken Yamamoto, Minoru Ohta, Toshiya Nagasawa | 2002-01-22 |