Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4342842 | Process for producing rigid polyurethane foam | Yasuo Hira, Masao Gotoh, Hitoshi Yokono, Hiroshi Kaneko, Yoshihisa Hosoe | 1982-08-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4342842 | Process for producing rigid polyurethane foam | Yasuo Hira, Masao Gotoh, Hitoshi Yokono, Hiroshi Kaneko, Yoshihisa Hosoe | 1982-08-03 |