Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4670953 | Method for forming warp beam of uniform diameter | Hisashi Kanda, Susumu Nario, Yuzo Kawada, Takashi Sakai, Takeshi Kawada +2 more | 1987-06-09 |
| 4488563 | Filter plug | Hirohumi Okura, Takashi Sakai | 1984-12-18 |
| 4357188 | Method for manufacturing cigarette filters | Naoki Mochida, Takashi Sakai | 1982-11-02 |