Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6506007 | Fastening bolt | Mitsuharu Kishimoto, Hiroki Nomoto, Kenichi Yajima | 2003-01-14 |
| 5246482 | Molten metal producing and refining method | Keikichi Murakami, Mitsuharu Kishimoto, Yoshio Uchiyama, Kenichi Yajima, Masaru Takiura +2 more | 1993-09-21 |