Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5267536 | Four-stroke engine having an improved valve mechanism | Hiroshi Kohmoto, Jens K. Olsen | 1993-12-07 |
| 5243937 | Portable engine unit | — | 1993-09-14 |
| 5213074 | Lubricating device of four-stroke cycle engine unit for portable working machine | Hiroshi Kohmoto | 1993-05-25 |
| 5176116 | Lubricating device of four-stroke cycle engine unit for portable working machine | Hiroshi Kohmoto | 1993-01-05 |