Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9082938 | Light emitting device | Takayoshi Fujii, Haruhiko Okazaki, Toshihiro Kuroki | 2015-07-14 |
| 8975806 | Bulb-type lamp | Makoto Sakai | 2015-03-10 |
| 8866385 | Self-ballasted lamp and lighting fixture | Makoto Sakai, Daigo Suzuki, Michinobu Inoue | 2014-10-21 |
| 8546178 | Semiconductor light emitting device and method for manufacturing semiconductor light emitting device | Tomoko Morioka, Takayoshi Fujii, Kazufumi Shiozawa, Taisuke Sato, Hidefumi Yasuda +1 more | 2013-10-01 |
| 7965350 | Backlight for liquid crystal display device | Ryuji Tsuchiya, Hirozumi Nakamura, Naotada Okada | 2011-06-21 |
| 7764334 | Illumination apparatus comprising a light guide plate divided by wedge-shaped grooves having an apex angle of 15 degrees or less and a ratio of depth to thickness in a range of 0.4 to 0.7 | Naotada Okada | 2010-07-27 |
| 7537371 | Backlight device and liquid crystal display device | Naotada Okada | 2009-05-26 |
| 6507443 | Lens, lens device, camera module and electrical equipment | — | 2003-01-14 |