Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9275793 | Current input converter | Hiroyuki Shirakawa, Toshio Tanaka, Hiroyuki Maehara, Noriyoshi Suga, Itsuo Shuto | 2016-03-01 |
| 8861163 | Protection relay | Hiroyuki Shirakawa, Hiroyuki Maehara, Toshio Tanaka, Noriyoshi Suga, Itsuo Shuto | 2014-10-14 |