Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4338456 | Method of producing biphenyltetracarboxylic esters | Hiroshi Itatani, Akinori Shiotani | 1982-07-06 |
| 4294976 | Process for producing biphenyl compounds | Hiroshi Itatani, Hataaki Yoshimoto, Akinori Shiotani, Motozoh Yoshikiyo | 1981-10-13 |
| 4292435 | Method of producing biphenyltetracarboxylic esters | Hiroshi Itatani, Akinori Shiotani | 1981-09-29 |