Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7724356 | Apparatus for measuring differential refractive index | — | 2010-05-25 |
| 6295125 | Differential refractive index detector and liquid chromatograph equipped with the same | Yukio Nogami, Saburo Inoue | 2001-09-25 |
| 5168326 | Method of detecting angle of optical rotation in solution having time-dependent concentration, detection apparatus therefor, and detector cell therefor | Norio Ishida | 1992-12-01 |
| 4794954 | Apparatus and method for prevention of pulsating flow in liquid chromatograph | Toshio Tokuda, Norio Ishida | 1989-01-03 |