Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4797265 | Process for the production of highly concentrated phosphoric acid | Tadashi Inoue, Akira Ohkoba, Kunio Sakashita, Akira Utsunomiya, Minoru Ieda | 1989-01-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4797265 | Process for the production of highly concentrated phosphoric acid | Tadashi Inoue, Akira Ohkoba, Kunio Sakashita, Akira Utsunomiya, Minoru Ieda | 1989-01-10 |