Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12255538 | Power conversion device | Kenji Hanamura, Takashi Shirakawa | 2025-03-18 |
| 12136886 | Power conversion device | Kenji Hanamura, Takashi Shirakawa | 2024-11-05 |
| 11742776 | Power conversion device | Kenji Hanamura, Wataru Horio, Hiroyuki Fujii | 2023-08-29 |
| 7026396 | Aromatic vinyl polymer resin composition and its molding | Ryozo Okumura, Makoto Wakabayashi | 2006-04-11 |