Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4677213 | 2,5-diamino-1,4-dioxane derivatives and process for production thereof | Sadao Kitagawa, Mitsumasa Kaito | 1987-06-30 |
| 4576563 | Rotary roll-type rubber extruder | Jumei Harada, Keiji Yamamoto | 1986-03-18 |
| 4470790 | Adjustable extrusion die assembly | Jumei Harada | 1984-09-11 |
| 4239928 | Process for preparing alkyl-substituted aromatic compounds | Kunimasa Takahashi | 1980-12-16 |