Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6447355 | Impregnated-type cathode substrate with large particle diameter low porosity region and small particle diameter high porosity region | Toshiharu Higuchi, Osamu Nakamura, Kiyomi Koyama, Sadao Matsumoto, Yoshiaki Ouchi +3 more | 2002-09-10 |