Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11221112 | LED illumination device having light reflecting and transmitting member | Hidetoshi Mitsuzuka, Kenichi Kurihara, Kazunori Kojima, Koji Ishii | 2022-01-11 |
| 11156329 | Light-emitting diode-type illumination device | Hidetoshi Mitsuzuka, Kenichi Kurihara, Kazunori Kojima | 2021-10-26 |