Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6647946 | Working machine having internal combustion engine | Hisato Ohsawa | 2003-11-18 |
| 6643939 | Chain saw with vibration-isolating devices | Hisato Ohsawa, Masato Nara | 2003-11-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6647946 | Working machine having internal combustion engine | Hisato Ohsawa | 2003-11-18 |
| 6643939 | Chain saw with vibration-isolating devices | Hisato Ohsawa, Masato Nara | 2003-11-11 |