Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12319785 | Method for producing aromatic polyether, and potassium carbonate used in same | Koichi Suga, Minoru Senga, Hiromu Kumagai | 2025-06-03 |
| 12098243 | Polyether ether ketone and method for producing polyether ether ketone | Koichi Suga, Minoru Senga, Hiromu Kumagai | 2024-09-24 |
| 12091504 | Polyether ether ketone, composition, and sheet | Koichi Suga, Minoru Senga, Hiromu Kumagai | 2024-09-17 |
| 8299185 | Curable cage-type silicone copolymer and process for production thereof and curable resin composition comprising curable cage-type silicone copolymer and cured product thereof | Takashi Saito, Mitsuhiro Koike | 2012-10-30 |
| 7214362 | Purification method for producing high purity niobium compound and/or tantalum compound | Hirohisa Kikuyama, Masahide Waki, Hiroto Izumi, Hirofumi Yazaki, Kenji Aoki +2 more | 2007-05-08 |
| 7175823 | Purification method for producing high purity niobium compound and/or tantalum compound | Hirohisa Kikuyama, Masahide Waki, Hiroto Izumi, Hirofumi Yazaki, Kenji Aoki +2 more | 2007-02-13 |
| 5985403 | Magnetic recording medium and magnetic recording reproducer | Takayuki Nakakawaji, Mitsuyoshi Shoji, Tomoe Takamura, Shuji Imazeki, Yutaka Ito +2 more | 1999-11-16 |
| 5456980 | Ammonium carboxylate lubricant and magnetic recording medium using the same | Takayuki Nakakawaji, Mitsuyoshi Shoji, Juichi Arai, Yutaka Ito | 1995-10-10 |