Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4495250 | Anion exchange resin of surface functional type and the process for producing the same | Takaharu Itagaki, Akihiro Shimura | 1985-01-22 |
| 4350773 | Weakly acidic cation exchange resin and process for producing same | Takaharu Itagaki | 1982-09-21 |
| 4306031 | Weakly acidic cation exchange resin and process for producing same | Takaharu Itagaki | 1981-12-15 |