Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6187259 | Method for preparing rare-earth system sintered magnet | Osamu Yamashita, Yoshihisa Kishimoto, Wataru Takahashi, Yoshiyuki Hashimasa, Masakazu Ohkita | 2001-02-13 |
| 5527504 | Powder mixture for use in compaction to produce rare earth iron sintered permanent magnets | Yoshihisa Kishimoto, Wataru Takahashi, Masakazu Ohkita, Naoyuki Ishigaki, Yutaka Matsuura | 1996-06-18 |
| 5486224 | Powder mixture for use in compaction to produce rare earth iron sintered permanent magnets | Yoshihisa Kishimoto, Wataru Takahashi, Masakazu Ohkita, Naoyuki Ishigaki, Yutaka Matsuura | 1996-01-23 |
| 5056209 | Process for manufacturing clad metal tubing | Yoshihisa Ohashi, Mutsuo Nakanishi, Shigeharu Takai, Junichi Kikuchi, Tadashi Fukuda | 1991-10-15 |