Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5021570 | Aqueous solution containing fat-soluble vitamin K | Katsumi Ida, Masanori Kayano | 1991-06-04 |
| 4839389 | Polyprenyl alcohol-containing injections | Noritoshi Koyama, Seiichi Araki, Kyosuke Kitoh, Katsumi Ida | 1989-06-13 |