Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4513339 | Current detecting apparatus | Yoshihisa Ishigami, Yasumasa Hashimota, Tadaharu Kitado, Hiromi Nishimura | 1985-04-23 |
| 4490701 | Electromagnetic switchgear comprising a magnetic drive and a contact apparatus placed thereabove | Bernhard Dietrich, Hidetoshi Matsushita | 1984-12-25 |