Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879185 | Heat transfer material | Yasuo Masuda, Tsutomu Takahashi, Naokazu Yoshiki | 1989-11-07 |
| 4861550 | Corrosion-resistant nickel-base alloy having high resistance to stress corrosion cracking | Takeshi Yoshida, Ichiro Sekine | 1989-08-29 |
| 4826578 | Method of producing heat-transfer material | Yasuo Masuda, Tsutomu Takahashi, Naokazu Yoshiki | 1989-05-02 |
| 4824530 | Method of producing heat-transfer material | Yasuo Masuda, Tsutomu Takahashi, Naokazu Yoshiki | 1989-04-25 |
| 4795689 | Electrostatic image developing toner for use in heat-roller fixing | Akitoshi Matsubara, Satoru Ikeuchi, Kunio Akimoto | 1989-01-03 |