Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7875206 | Luminescent material | — | 2011-01-25 |
| 7799245 | Fluorescent substance and light-emitting device using the same | Naomi Shida, Masaaki Tamatani, Yoshihito Tsutsui, Kazuaki Ootsuka | 2010-09-21 |
| 7638934 | Fluorescent substance and light-emitting device | Yumi Fukuda, Masaaki Tamatani, Hironori Asai, Naotoshi Matsuda, Keiko Albessard +3 more | 2009-12-29 |
| 7635438 | Luminescent material | Masaaki Tamatani, Hisayo Uetake, Kazuaki Ootsuka, Yasushi Hattori, Naomi Shida | 2009-12-22 |
| 7601277 | Fluorescent substance and light-emitting device using the same | Naomi Shida, Masaaki Tamatani, Yoshihito Tsutsui, Kazuaki Ootsuka | 2009-10-13 |
| 7572391 | Fluorescent substance and light-emitting device using the same | Naomi Shida, Masaaki Tamatani, Yoshihito Tsutsui, Kazuaki Ootsuka | 2009-08-11 |
| 7498736 | Luminescent material | Masaaki Tamatani, Hironori Asai, Kazuaki Ootsuka | 2009-03-03 |
| 7468147 | Fluorescent substance and light-emitting device using the same | Naomi Shida, Masaaki Tamatani, Yoshihito Tsutsui, Kazuaki Ootsuka | 2008-12-23 |
| 7414272 | Fluorescent substance containing nitrogen, method for manufacturing the same, and light-emitting device | Kazuaki Ootsuka, Naomi Shida, Masaaki Tamatani, Hisayo Uetake, Yoshihito Tsutsui | 2008-08-19 |
| 7201858 | Fluorescent substance, method of manufacturing fluorescent substance, and light emitting device using the fluorescent substance | Naomi Shida, Masaaki Tamatani, Kazuaki Otsuka, Yoshihito Tsutsui | 2007-04-10 |
| 5697504 | Video coding system | Hitoshi Yoneda | 1997-12-16 |