Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7588205 | Medium agitation mill | Tsuyoshi Ishikawa, Jiro Onuki, Yasuhiro Mitsuhashi | 2009-09-15 |
| 7374116 | Circulation type media agitator mill | Tsuyoshi Ishikawa, Masakatsu Iioka, Toshihiro Ishii | 2008-05-20 |