Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12312569 | Kit for cleaning agent and method for preparing cleaning agent | Satoshi Shirahata, Takahiro Yokomizo, Yoshihisa Tsurumi, Takayuki Kajikawa, Kohei Hayashi +1 more | 2025-05-27 |
| 10439252 | Electrolyte solution for electrochemical device, and electrochemical device | Takahiro Kiyosu, Kazuhiko Sato, Goro Mori, Kuniaki Okamoto | 2019-10-08 |
| 9862914 | Cleaning agent for semiconductor substrates and method for processing semiconductor substrate surface | Takayuki Kajikawa, Kohei Hayashi, Hironori Mizuta | 2018-01-09 |
| 9263767 | Electrolyte solution for electrochemical devices | Takahiro Kiyosu, Kuniaki Okamoto | 2016-02-16 |
| 9257720 | Nonaqueous electrolyte solution and nonaqueous electrolyte battery using same | Kuniaki Okamoto, Motoshige Sumino, Kouki Ohkubo, Tatsuko Ikeda | 2016-02-09 |
| 9190695 | Nonaqueous electrolyte solution, method for producing same, and nonaqueous electrolyte battery using the electrolyte solution | Kuniaki Okamoto, Motoshige Sumino, Kouki Ohkubo, Tatsuko Ikeda | 2015-11-17 |
| 8969591 | Method for producing cyclic sulfonic acid ester and intermediate thereof | Ayako Kuramoto, Kuniaki Okamoto, Motoshige Sumino | 2015-03-03 |
| 8742136 | Method for producing cyclic disulfonic acid ester | Kuniaki Okamoto, Motoshige Sumino | 2014-06-03 |
| 8716513 | Process for production of bis-quaternary ammonium salt, and novel intermediate | Kuniaki Okamoto, Motoshige Sumino | 2014-05-06 |
| 8673963 | Method for producing cyclic sulfonic acid ester and intermediate thereof | Ayako Kuramoto, Kuniaki Okamoto, Motoshige Sumino | 2014-03-18 |
| 8546609 | Ionic liquid containing allylsulfonate anion | Kuniaki Okamoto, Motoshige Sumino | 2013-10-01 |
| 8269038 | Process for production of sulfonic acid ester | Kuniaki Okamoto, Motoshige Sumino, Takao Shibasaki | 2012-09-18 |