Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6207261 | Electrical insulating laminated paper, process for producing the same oil-impregnated power cable containing the same | Katsuhiko Katayama, Toru Tsujioka, Ryosuke Hata, Hiroshi Takigawa, Jun Yorita | 2001-03-27 |
| 4964933 | Method for producing an insulating polyolefin laminated paper | Ryosuke Hata, Shosuke Yamanouchi, Masayuki Hirose, Yasuharu Mizumoto, Yasuhiro Hagiuda | 1990-10-23 |
| 4859804 | Electric power supply cable using insulating polyolefin laminate paper | Ryosuke Hata, Shosuke Yamanouchi, Masayuki Hirose, Yasuharu Mizumoto, Yasuhiro Hagiuda | 1989-08-22 |
| 4762965 | Insulating polyolefin laminate paper and method for producing same, and electric power supply cable | Ryosuke Hata, Shosuke Yamanouchi, Masayuki Hirose, Yasuharu Mizumoto, Yasuhiro Hagiuda | 1988-08-09 |
| 4673607 | Insulating polyolefin laminate paper and method for producing same, and electric power supply cable | Ryosuke Hata, Shosuke Yamanouchi, Masayuki Hirose, Yasuharu Mizumoto, Yasuhiro Hagiuda | 1987-06-16 |
| 4571357 | Electrically insulating laminate paper for oil-impregnated electric apparatus | Ryosuke Hata, Shosuke Yamanouchi, Masayuki Hirose, Hiroyuki Yamamoto, Yasuharu Mizumoto | 1986-02-18 |