Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D303973 | Portable internal combustion engine and tools | Katsumi Kiyooka, Keiko Iramina, Hideko Inomata | 1989-10-10 |
| D303671 | Combined portable internal combustion engine and tool | Katsumi Kiyooka, Hideko Inomata, Kiyoshi Anbo | 1989-09-26 |
| 4821691 | Portable engine unit | Katsumi Kiyooka | 1989-04-18 |
| 4815430 | Portable engine unit | Katsumi Kiyooka | 1989-03-28 |