Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883183 | Bill depositing/dispensing apparatus | Takeo Ishidate, Masao Goto | 1989-11-28 |
| 4878907 | Synthetic vascular prosthesis | Masao Okada, Kazuhiko Sakai, Yoshito Ikada | 1989-11-07 |