Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886427 | Hermetic scroll compressor with passage group for discharged fluid | Takahiro Tamura | 1989-12-12 |
| 4818198 | Scroll fluid machine with oil feed passages | Takahiro Tamura | 1989-04-04 |
| 4801828 | Multiphase solid-state contactor | Masahide Ishikawa, Tomio Shimizu, Junzo Tanaka | 1989-01-31 |