Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5868817 | Process for producing steel by converter | Masataka Yano, Yuji Ogawa, Masayuki Arai, Noriyuki Masumitsu, Hideaki Sasaki +5 more | 1999-02-09 |
| 4693952 | Toner for developing electrostatic latent image | Takahira Kasuya, Jiro Takahashi | 1987-09-15 |