Issued Patents All Time
Showing 1–25 of 78 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12364629 | Method for producing recycled pulp fibers, and recycled pulp fibers | Toshio Hiraoka, Noritomo Kurita | 2025-07-22 |
| 12226752 | Method for regenerating highly water-absorbing polymer, method for producing highly water-absorbing recycled polymer, and use of alkali metal ion source | Ryusei Ito, Haruna Onodera, Naoyuki Funamizu, Kouichi Yamaki | 2025-02-18 |
| 11987932 | Method for producing pulp fibers for cellulose nanofiberization, and pulp fibers for cellulose nanofiberization | Toshio Hiraoka, Noritomo Kurita | 2024-05-21 |
| 11879210 | Method for producing softwood-derived pulp fibers for paper and softwood-derived pulp fibers for paper | Takeshi Bandou | 2024-01-23 |
| 11773536 | Method for producing pulp fibres for saccharification, and aqueous solution of pulp fibres for saccharification | Kouichi Yamaki, Naoto Ohashi, Toshio Hiraoka, Noritomo Kurita | 2023-10-03 |
| 11771604 | Method for producing recycled pulp fibers by decomposing super absorbant polymers with ozone | Toshio Hiraoka, Noritomo Kurita | 2023-10-03 |
| 11731318 | Method for producing recycled product, recycled resin pellet, and recycled film | Toshio Hiraoka, Noritomo Kameda | 2023-08-22 |
| 11673172 | Method and system for recovering pulp fibers from used absorbent articles | Toshio Hiraoka, Takashi Kato, Noritomo Kurita | 2023-06-13 |
| 11554520 | Recycled pulp, absorbent, non-woven fabric, and sanitary article | Toshio Hiraoka | 2023-01-17 |
| 11433157 | Absorbent article | Koichi Yamaki, Hideaki Ichiura | 2022-09-06 |
| 11358123 | Method for recycling superabsorbent polymer derived from used absorbent article and recycled superabsorbent polymer derived from used absorbent article | Takashi Kato, Kouichi Yamaki, Noritomo Kurita | 2022-06-14 |
| 11319670 | Method for manufacturing recycled pulp from used sanitary products | Toshio Hiraoka | 2022-05-03 |
| 11299851 | Method for producing pulp fibers to be saccharified | Kouichi Yamaki, Naoto Ohashi | 2022-04-12 |
| 11224994 | Method for recovering constituent members from used absorbent article | Toshio Hiraoka, Noritomo Kameda | 2022-01-18 |
| 11208674 | Method of producing saccharified solution from used absorbent article | Toshio Hiraoka, Koichi Yamaki, Noritomo Kameda | 2021-12-28 |
| 11131061 | Method for manufacturing recycled pulp fibers | Toshio Hiraoka, Takashi Kato, Noritomo Kurita | 2021-09-28 |
| 11098447 | Method for manufacturing recycled pulp from used sanitary products | Toshio Hiraoka | 2021-08-24 |
| 11053638 | Recycled pulp fiber manufacturing method | — | 2021-07-06 |
| 11021839 | Recovery method for organic acid, and production method for recycled pulp | Toshio Hiraoka, Takashi Kato, Yoshihide Ishikawa, Noritomo Kurita | 2021-06-01 |
| 10960577 | Method for recovering pulp fiber from used sanitary product and recycled pulp obtained thereby | Toshio Hiraoka, Noritomo Kameda, Hideaki Ichiura, Hiroko NAKAOKA | 2021-03-30 |
| 10961658 | Method for recovering pulp fiber from used sanitary product and recycled pulp obtained thereby | Toshio Hiraoka, Noritomo Kameda, Hideaki Ichiura, Hiroko NAKAOKA | 2021-03-30 |
| 10927496 | Method for recovering pulp fibers from used absorbent article | Toshio Hiraoka, Koichi Yamaki, Noritomo Kameda | 2021-02-23 |
| 10895039 | Process for manufacturing recycled pulp from used sanitary goods | Masashi Yamaguchi | 2021-01-19 |
| 10773421 | Method for manufacturing recycled pulp from used sanitary article | Toshio Hiraoka | 2020-09-15 |
| 10646386 | Method for recovering pulp fiber from used hygiene product | Toshio Hiraoka, Noritomo Kameda, Hideaki Ichiura | 2020-05-12 |