Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7282849 | Alkaline earth aluminate phosphor, phosphor paste composition and vacuum ultraviolet excitation light emitting element | Akihiro Ohto, Kouhei Matsuda | 2007-10-16 |
| 7006172 | Color liquid crystal display devices | Shin Kawana, Naoki Sako, Naoto Kijima, Reiji Ootsuka | 2006-02-28 |
| 6899825 | Bivalent metal silicate phosphor and process for its production, and a phosphor paste composition and a vacuum ultraviolet ray excitation type light-emitting device employing such a phosphor | Kouhei Matsuda | 2005-05-31 |
| 6585912 | Aluminate phosphor and process for its production, phosphor paste composition, and vacuum ultraviolet ray excitation type light-emitting device | Kouhei Matsuda, Akihiro Ohto | 2003-07-01 |
| 5989455 | Aluminate phosphor, process for preparing the same, and vacuum ultraviolet-excited light emitting device | Masakazu Nabu | 1999-11-23 |
| 5611959 | Aluminate phosphor | Naoto Kijima, Yasuo Shimomura, Chisato Miura, Masakazu Nabu, Koichi Toriumi | 1997-03-18 |
| 5231328 | Phosphor and ultraviolet ray excited fluorescent tube employing it | Takashi Hase | 1993-07-27 |