Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12065599 | Kits and compositions containing vinyl alcohol polymers and fibers | Keisuke Morikawa, Takuma Kaneshima | 2024-08-20 |
| 11787928 | Polyvinyl alcohol compositions having improved particle size distribution | Keisuke Morikawa, Richard Cazares, Masaki Kato | 2023-10-17 |
| 11767462 | Polyvinyl alcohol-based particulate compositions | Takuma Kaneshima, Keisuke Morikawa, Amanda Reneau | 2023-09-26 |
| 11549046 | Particulate polyvinyl alcohol plugging agents | Keisuke Morikawa, Yasuhiro Tajima | 2023-01-10 |
| 11384276 | Particulate plugging agent based on hydrophobically-modified vinyl alcohol polymers | Keisuke Morikawa, Takuma Kaneshima | 2022-07-12 |
| 11236260 | Diverting agents based on thermoplastic polyvinyl alcohol pellets | Keisuke Morikawa, Richard Cazares | 2022-02-01 |
| 11118105 | Polyvinyl alcohol based diverting agents | Masaki Kato, Levi Neufeld, Brittany Spell | 2021-09-14 |
| 11098236 | Particulate polyvinyl alcohol compositions having reduced dust content | Masaki Kato, Keisuke Morikawa, Erik Bateham | 2021-08-24 |
| 10858457 | Particulate polyvinyl alcohol copolymers, process for making and uses of the same | Masaki Kato, Yuta Taoka | 2020-12-08 |
| 10626203 | Particulate polyvinyl alcohol, process for making and uses of the same | Michael C. Collins, Masaki Kato, Keisuke Morikawa, Yoriko Imaoka | 2020-04-21 |
| 10125204 | Particulate polyvinyl alcohol, process for making and uses of the same | Michael C. Collins, Masaki Kato, Keisuke Morikawa, Yoriko Imaoka | 2018-11-13 |
| 6794428 | Carbon black coupler | James D. Burrington, Benny Richardson, Joseph W. Pialet, Ann E. Wykoff, Roger L. Sowerby +3 more | 2004-09-21 |