Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7017755 | Large coating lump removing device | Masura Nakamura, Tsuyoshi Yamamoto, Shigetoshi Toyooka, Yasufumi Matsuo, Shunichi Nagasaki | 2006-03-28 |
| 5192366 | Cement admixture and cement composition | Etsuo Sakai, Tomohiro Kaneko, Masaki Ogasawara | 1993-03-09 |
| 4708626 | Mold assembly | Etsuo Sakai, Kiyosi Watanabe, Iwao Mino | 1987-11-24 |