Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5505898 | Plastic pipe and manufacturing method thereof | Yuichiro Goto, Takatomo Harada, Takashi Tago | 1996-04-09 |
| 5462314 | Electro-fusion fitting having a solid embedded heater with perpendicular projections | Yuichiro Goto, Takatomo Harada | 1995-10-31 |
| 5352871 | System and method for joining plastic materials | James B. Ross, Dexter C. Tight, Jr., Charles W. Tinsley | 1994-10-04 |
| 5338920 | Method of manufacturing and joining electro-fusion fitting | Shigeru Okusaka, Masayuki Sakaguchi, Junsuke Kyomen, Takashi Tago | 1994-08-16 |