Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5634444 | Intake port structure in an internal combustion engine | Masato Matsuki, Hirosuke Niwa | 1997-06-03 |
IS
Izumi Sugiyama
Overall (1997): #137,636 of 185,788Top 75%
1
Patents 1997