Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840837 | Heat transfer medium | Masami Tokunaga, Tsuyoshi Tanaka, Satoshi Koyama, Keiichi Kikuchi | 1989-06-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840837 | Heat transfer medium | Masami Tokunaga, Tsuyoshi Tanaka, Satoshi Koyama, Keiichi Kikuchi | 1989-06-20 |