Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879185 | Heat transfer material | Yasuo Masuda, Tsutomu Takahashi, Yoshio Takizawa | 1989-11-07 |
| 4826578 | Method of producing heat-transfer material | Yasuo Masuda, Tsutomu Takahashi, Yoshio Takizawa | 1989-05-02 |
| 4824530 | Method of producing heat-transfer material | Yasuo Masuda, Tsutomu Takahashi, Yoshio Takizawa | 1989-04-25 |