Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889934 | Organic mixed complex | Takeo Kawabata, Masahiko Miyashita | 1989-12-26 |
| 4801713 | Organic complexes of a cation of a heterocyclic nitrogen compound and an anion of a 2,5-disubstituted-7,7,8,8-tetracyanoquinodiethmane | Takeo Kawabata | 1989-01-31 |