Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6755444 | Slim-type threaded joint for oil well pipes | Jun Maeda, Shigeo Nagasaku | 2004-06-29 |
| 6698802 | Pipe joint | Shigeo Nagasaku, Jun Maeda | 2004-03-02 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6755444 | Slim-type threaded joint for oil well pipes | Jun Maeda, Shigeo Nagasaku | 2004-06-29 |
| 6698802 | Pipe joint | Shigeo Nagasaku, Jun Maeda | 2004-03-02 |