Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12241781 | Device and method for measuring optical constant | Daisuke Hirano, Kosuke Yoshioka | 2025-03-04 |
| 9594253 | Spectral apparatus, detection apparatus, light source apparatus, reaction apparatus, and measurement apparatus | Takashi Sukegawa, Yohei Kobayashi, Akira Ozawa, Mamoru Endo | 2017-03-14 |
| 7361696 | 1,4-disubstituted diacetyline polymer and process for producing the same | Kenji Takeda | 2008-04-22 |
| 5231533 | Nonlinear optical element and uses thereof | Kenji Takeda, Eiichi Hanamura, Yoshinori Tokura | 1993-07-27 |