Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10754064 | Second-order nonlinear optical compound and nonlinear optical element comprising the same | Akira OTOMO, Isao Aoki, Hidehisa Tazawa, Shiyoshi Yokoyama | 2020-08-25 |
| 10253124 | Copolymer having adjustable glass transition temperature and having usefulness as organic electro-optic polymer, and organic electro-optic element using the same | Akira OTOMO, Isao Aoki, Toshiki Yamada | 2019-04-09 |
| 9977150 | Second-order nonlinear optical compound and nonlinear optical element comprising the same | Akira OTOMO, Isao Aoki, Hidehisa Tazawa, Shiyoshi Yokoyama | 2018-05-22 |
| 9488755 | Second-order nonlinear optical compound and nonlinear optical element comprising the same | Akira OTOMO, Isao Aoki, Hidehisa Tazawa, Shiyoshi Yokoyama | 2016-11-08 |
| 8846955 | Second-order nonlinear optical compound and nonlinear optical element comprising the same | Akira OTOMO, Isao Aoki, Hidehisa Tazawa, Shiyoshi Yokoyama | 2014-09-30 |
| 7205428 | Thioether derivatives, their method for production and use | Tatsuo Nakahama, Shiyoshi Yokoyama, Shinro Mashiko | 2007-04-17 |
| 6630578 | Thioether derivatives, their method for production and use | Tatsuo Nakahama, Shiyoshi Yokoyama, Shinro Mashiko | 2003-10-07 |
| 6294536 | Triazine derivatives, their production and use | Isao Aoki, Toshikatsu Hayashi | 2001-09-25 |
| 6211178 | Triazine derivative, production and use thereof | Koichi Iwanaga, Toshimi Matsuno, Isao Aoki | 2001-04-03 |
| 5994355 | 1, 2, 4-Triazin-3-one derivatives, production and use thereof | Koichi Iwanaga, Toshimi Matsuno, Isao Aoki | 1999-11-30 |
| 5985875 | 1,2,4-triazine-3, 5-dione derivatives, their production and use thereof | Isao Aoki, Koichi Iwanaga, Toshikatsu Hayashi | 1999-11-16 |
| 4994571 | Process of producing sulfonylurea derivatives | Yasuo Ishida | 1991-02-19 |