Issued Patents All Time
Showing 76–80 of 80 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4557948 | Process for producing magnetic recording materials | Nobuyuki Yamamoto, Masao Yabe, Akio Yanai, Ryuji Shirahata, Kyoichi Naruo | 1985-12-10 |
| 4520070 | Magnetic recording medium and process for producing same | Nobuyuki Yamamoto, Kyoichi Naruo, Tsutomu Okita | 1985-05-28 |
| 4443514 | Magnetic recording medium | Nobuyuki Yamamoto, Yuji Andou, Kyoichi Naruo, Tsutomu Okita | 1984-04-17 |
| 4436678 | Method for hot repairing the inside of a furnace | Hirokuni Takahashi | 1984-03-13 |
| 4282200 | Processes for the preparation of fiberous titanic acid metal salts | Hiroaki Yanagida, Tadao Shimizu, Masayosi Hori, Tetsuro Yoshida | 1981-08-04 |