Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9697858 | Perpendicular magnetic recording medium | Hirohisa OYAMA, Isamu Sugai | 2017-07-04 |
| 5276401 | Method for diagnosing an insulation deterioration of an electric apparatus | Kazuo Kotani, Nobuju Takaoka | 1994-01-04 |
| 4980645 | Method for diagnosing an insulation deterioration of a power cable | Kazuo Kotani, Nobuju Takaoka, Chuki Ikeda, Moritada Marumo | 1990-12-25 |
| 4721916 | Method for diagnosing an insulation deterioration of a power cable | Kazuhiko Hanasawa, Kazuo Kotani | 1988-01-26 |
| 4370517 | Polyolefin compositions for electrical insulation | Shoji Kuma, Harunori Sakaguchi, Hisanari Shirai, Ryoichi Ito, Toshio Shiina | 1983-01-25 |