Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4646928 | Folding container | Kikuzo Kuramoto | 1987-03-03 |
| 4477708 | Apparatus for preheating the ends of upset steel pipes | Shigeru Sano, Katsumi Sakurai, Kanji Tsuruoka, Masaru Watanabe | 1984-10-16 |
| 4444376 | Multi-pipe type quenching apparatus | Harumi Noguchi, Kazuo Atago, Katsumi Sakurai | 1984-04-24 |