Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6493203 | Phase control switch apparatus | Hiroki Ito, Masaki Hiratsuka | 2002-12-10 |
| 6392390 | Synchronous switching apparatus for use with a multiple phase power system | Hiroki Ito, Mikio Hidaka | 2002-05-21 |