Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D879036 | Power supply unit | Masaaki Nagano, Tadahiko Ogawa, Masahiko Kubo, Hiroki Niwa, Masayuki Ueuchi +6 more | 2020-03-24 |
| D876349 | Power supply unit | Masaaki Nagano, Masahiko Kubo, Tadahiko Ogawa, Tomonori Watanabe, Kei Okada +6 more | 2020-02-25 |