Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5701671 | Method for machining a reduction or step-up gear | — | 1997-12-30 |
| 5611754 | Control system for internal combustion engines | Hidezo Umiyama | 1997-03-18 |
TH
Takashi Haga
Sumitomo Heavy Industries: 1 patents #2 of 55Top 4%
Overall (1997): #22,979 of 185,788Top 15%
2
Patents 1997