Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12230957 | Electric power network and method of changing electric power network | Masahiro RIKISO, Sumio Kachi, Hideto Nakamura | 2025-02-18 |
| 9812233 | Superconducting oxide thin film | Hirokazu Sasaki, Hajime Kasahara, Masakazu Matsui | 2017-11-07 |
| 9159898 | Oxide superconductor thin film and superconducting fault current limiter | Hajime Kasahara, Norio Matsui, Masakazu Matsui, Naoto Edo, Toshiya Kumagai +2 more | 2015-10-13 |
| 9105794 | Oxide superconductor thin film, superconducting fault current limiter, and method for manufacturing oxide superconductor thin film | Hajime Kasahara, Masakazu Matsui, Norio Matsui, Naoto Edo, Toshiya Kumagai +2 more | 2015-08-11 |
| 8925533 | Ignition coil for internal combustion engine | Kazuhide Kawai, Katsunori Akimoto | 2015-01-06 |
| 8121844 | Dimension measurement system | Hidetaka Yamashita, Katsumi Hirano | 2012-02-21 |
| 7753038 | Ignition coil | Norihito Fujiyama | 2010-07-13 |
| 7501923 | Ignition coil having plug cap | Norihito Fujiyama | 2009-03-10 |