Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846884 | Process for producing cold-bonded iron ore for use in a blast furnace | Tatsuhiko Shigematsu, Chitose Shiotani, Yohzi Tozawa | 1989-07-11 |
| 4469313 | Apparatus for production of metal powder | Toshihiko Kubo | 1984-09-04 |
| 4448746 | Process for producing alloy steel powder | Toshihiko Kubo, Eijiro Tamura, Isamu Karasuno, Masahide Umino | 1984-05-15 |
| 4437883 | Process for producing metal powder | Toshihiko Kubo, Toshiyuki Kawai, Sadao Yonehara, Yoshihisa Koiwai, Kazuhiko Endo | 1984-03-20 |
| 4437891 | Oil-atomized low-alloy steel powder | Masahide Umino, Eijiro Tamura, Isamu Karasuno, Toshihiko Kubo | 1984-03-20 |
| 4385929 | Method and apparatus for production of metal powder | Toshihiko Kubo | 1983-05-31 |