Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4746049 | Apparatus for fabricating multi-layer spiral tubes | Tsutomu Oe, Sadatomi Uemukai, Katsuzo Sudo, Yoshinori Yuzaki | 1988-05-24 |
| 4640453 | Apparatus for fabricating multi-layer spiral tubes | Tsutomu Oe, Shigeaki Kimura, Yoshinori Yuzaki | 1987-02-03 |