Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880142 | Powder weighing mixer and method thereof | Noboru Higuchi, Keizo Matsui, Chuzo Kobayashi | 1989-11-14 |
| 4830508 | Controlling method and a measuring mixer for liquids and powders | Noboru Higuchi, Keizo Matsui, Chuzo Kobayashi, Shigeru Yamaguchi | 1989-05-16 |