Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10470490 | Cigarette filter tow band | Kazuma Oguni | 2019-11-12 |
| 9289013 | Cigarette filter | Hiroki Taniguchi | 2016-03-22 |
| 5087367 | Hydrolyzed membrane and process for the preparation of the same | Michio Tsuyumoto, Yasushi Maeda | 1992-02-11 |
| 4895685 | Crosslinked composite membrane and process for producing the same | Zenjiro Honda, Hajime Komada | 1990-01-23 |
| 4871461 | Polymer composite membrane | Yasushi Maeda, Michio Tsuyumoto | 1989-10-03 |
| 4824573 | Crosslinked composite membrane and process for producing the same | Zenjiro Honda, Hajime Komada | 1989-04-25 |