Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12084541 | Polylactic acid solid composition and method for producing the same | Seishi Yoshikawa, Koki SHIBATA | 2024-09-10 |
| 11104840 | Method of extracting underground resources by using hydrolysable particles | Seishi Yoshikawa | 2021-08-31 |
| 10626246 | Polylactic acid composition | Seishi Yoshikawa, Toshiki Yamada | 2020-04-21 |
| 10487620 | Method of extracting underground resources and hydrolysis-blocking agent for use in the method | Seishi Yoshikawa | 2019-11-26 |
| 10385171 | Powder comprising hydrolyzable resin particles | Seishi Yoshikawa, Toshiki Yamada | 2019-08-20 |
| 10040983 | Dispersion solution for drilling and method of extracting underground resources using the dispersion solution | Seishi Yoshikawa | 2018-08-07 |
| 9926425 | Method for degrading biodegradable resin | — | 2018-03-27 |
| 9650489 | Method for degrading biodegradable resin | — | 2017-05-16 |
| 9284432 | Method for degrading a readily-degradable resin composition | Seishi Yoshikawa, Masahito Kogure | 2016-03-15 |
| 8846355 | Method for degrading biodegradable resin | Seishi Yoshikawa, Masahito Kogure | 2014-09-30 |
| 8501445 | Method for producing oligomer and/or monomer by degrading biodegradable resin | Seishi Yoshikawa, Masahito Kogure | 2013-08-06 |