Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4817545 | Thread take-up lever device for sewing machines | Osamu Tanaka | 1989-04-04 |
| 4803936 | Thread tension device for overedge sewing machines | Osamu Koshinaka | 1989-02-14 |
| 4690080 | Overedge sewing machine | Osamu Koshinaka | 1987-09-01 |
| 4688501 | Upper thread guide mechanism for sewing machines | Osamu Tanaka, Kimikazu Matsuda | 1987-08-25 |
| 4660487 | Loop taker for sewing machines | — | 1987-04-28 |
| 4638750 | Sewing machine loop taker attaching construction | — | 1987-01-27 |
| 4424758 | Embroidering apparatus for use with sewing machines | Tadao Kohara, Yoshihide Yoneda | 1984-01-10 |