Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4438887 | Grooved traverse drum for use in drum winder | Takeshi Ohno | 1984-03-27 |
| 4347991 | Grooved traverse drum for use in drum winder | Takeshi Ohno | 1982-09-07 |
| 4225096 | Grooved traverse drum for use in drum winder | — | 1980-09-30 |
| 4213574 | Grooved traverse drum used in drum winder | Takeshi Ohno | 1980-07-22 |