Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12305334 | Tissue paper | Minoru Iwasaki | 2025-05-20 |
| 12134862 | Toilet paper and method for producing toilet paper | Minoru Iwasaki | 2024-11-05 |
| 11692993 | Tissue paper and method of evaluating the same | Hidenori YOROZU, Kazuo Hokkirigawa, Takeshi Yamaguchi, Kei Shibata, Naoya Yamai +1 more | 2023-07-04 |
| 11686046 | Tissue paper | Minoru Iwasaki | 2023-06-27 |
| 11519133 | Tissue paper | — | 2022-12-06 |
| 11473246 | Tissue paper product and tissue paper product package | — | 2022-10-18 |
| 11459166 | Tissue paper product and tissue paper product package | — | 2022-10-04 |
| 11280050 | Tissue paper | — | 2022-03-22 |
| 10844549 | Tissue paper | — | 2020-11-24 |
| 10618261 | Tissue paper | — | 2020-04-14 |
| 10570568 | Tissue paper | Norimitsu Hirata, Hidenori YOROZU, Kazuo Hokkirigawa, Takeshi Yamaguchi, Kei Shibata +2 more | 2020-02-25 |
| 10316470 | Tissue paper | — | 2019-06-11 |
| 9901220 | Pocket tissue | — | 2018-02-27 |