Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5534906 | Electric field assisted thermal recording apparatus | Keiki Yamada, Masaru Ohnishi, Yoshiaki Odai | 1996-07-09 |
| 5454854 | Method of refining molten metal or molten alloy | Kazuumi Harashima, Michitaka Matsuo | 1995-10-03 |
| 4295882 | Steel making process | Kazushige Umezawa, Tokuzo Nisugi | 1981-10-20 |