Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6554967 | Method of refining dihydroxyaryl compound | Shuji Tanaka, Genji Koga, Tetsuro Kawashita | 2003-04-29 |
| 6512147 | Apparatus and process for generating mixed multi-component vapor | Yukio Inaba, Kazunori Fujita | 2003-01-28 |
| 6336997 | Process for refining heat-deteriorative compound, contained in multi-component liquid mixture, by distillation | Yukio Inaba, Kazunori Fujita | 2002-01-08 |
| 6262315 | Process and apparatus for producing dihydric phenolic compound | Yukio Inaba, Kazunori Fujita | 2001-07-17 |