Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11021823 | Perforating apparatus and embroidery sewing machine with the perforating apparatus | — | 2021-06-01 |
| 8513898 | Light emitting device that restores abnormal light emitting element | Masanao Okawa, Shin Ukegawa, Minoru Maehara, Hirofumi Konishi | 2013-08-20 |
| 8502471 | Planar light-emitting module lighting circuit and illuminating device | Masanao Ookawa, Shin Ukegawa, Minoru Maehara, Hirofumi Konishi | 2013-08-06 |
| 8432105 | Light control apparatus for lighting an organic electroluminescence device and lighting appliance using the same | Shin Ukegawa, Minoru Maehara, Hirofumi Konishi, Masanao Okawa | 2013-04-30 |
| 8344651 | Light control apparatus and lighting appliance using the same | Shin Ukegawa, Minoru Maehara, Hirofumi Konishi, Masanao Okawa | 2013-01-01 |
| 8138679 | Organic electroluminescent light emitting device for restoring normal operation after low-voltage errors | Hirofumi Konishi, Shin Ukegawa, Minoru Maehara, Masanao Okawa | 2012-03-20 |