Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858064 | Thick-film high frequency signal circuit apparatus with feedthrough capacitor | Masao Segawa | 1989-08-15 |
| 4853226 | Sustained-release particulate preparation and process for preparing the same | Minoru Machida | 1989-08-01 |