Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818890 | Turbine helper drive apparatus | Tadao Mose, Akio Hirata, Hidehiko Kikuchi | 1989-04-04 |
| 4819121 | Security apparatus for power converter | Shigetoshi Higaki | 1989-04-04 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818890 | Turbine helper drive apparatus | Tadao Mose, Akio Hirata, Hidehiko Kikuchi | 1989-04-04 |
| 4819121 | Security apparatus for power converter | Shigetoshi Higaki | 1989-04-04 |