Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834700 | Method of and apparatus for forming filter element | Naohiko Kondo, Mineo Hanai, Yoshiaki Miyagawa, Yuji Ito, Takatoshi Iwase | 1989-05-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834700 | Method of and apparatus for forming filter element | Naohiko Kondo, Mineo Hanai, Yoshiaki Miyagawa, Yuji Ito, Takatoshi Iwase | 1989-05-30 |