Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5860307 | Method and apparatus for forming a bent pipe | Shin Takeda, Kiyoshi Takeuchi | 1999-01-19 |
| 5316658 | Process for the production of low-sulfur diesel gas oil | Masaru Ushio, Minoru Hatayama, Katuhiko Ishikawa, Masaru Sato | 1994-05-31 |