Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867637 | Variable area nozzle turbine | — | 1989-09-19 |
| 4820118 | Variable-displacement turbine | Shunji Yano | 1989-04-11 |
MH
Masato Hayama
Overall (1989): #20,955 of 140,708Top 15%
2
Patents 1989