Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12071728 | Method for manufacturing paper barrier base material | Kenta Watanabe, Satoshi Tsuda, Masashi Okamoto, Hiroshi Koyamoto | 2024-08-27 |
| 11905662 | Paper barrier material | Masaaki Fukunaga, Hiroshi Koyamoto, Masatsugu Kato, Akio Miyajima, Masashi Okamoto | 2024-02-20 |
| 11834791 | Method for manufacturing paper barrier base material | Kenta Watanabe, Satoshi Tsuda, Masashi Okamoto, Hiroshi Koyamoto | 2023-12-05 |
| 10882676 | Paper barrier material | Masashi Okamoto, Masatsugu Kato, Masaaki Fukunaga, Akio Miyajima, Hiroshi Koyamoto | 2021-01-05 |