Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4943272 | Apparatus for manufacturing cigarette filter | Ichiro Hirose, Katsuo Kato | 1990-07-24 |
| 4861324 | Apparatus for manufacturing tobacco filter | Ichiro Hirose, Shichisei Tani, Takashi Koyama | 1989-08-29 |