Issued Patents All Time
Showing 1–25 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12429190 | Ultraviolet radiation apparatus | Hitoshi Hirakawa, Kenji Awamoto, Takefumi Hidaka, Junichiro Takahashi, Tetsuya Makino +2 more | 2025-09-30 |
| 11011367 | Light-emitting tube array-type light source device | Hitoshi Hirakawa, Kenji Awamoto, Takefumi Hidaka, Junichiro Takahashi, Tetsuya Makino | 2021-05-18 |
| 10128100 | Drive method and drive circuit for light-emitting device using gas discharge, and ultraviolet irradiation device | Hitoshi Hirakawa, Kenji Awamoto, Junichiro Takahashi, Takefumi Hidaka | 2018-11-13 |
| 9947526 | Gas discharge device and flat light source using the same, and driving method therefor | Hitoshi Hirakawa, Kenji Awamoto, Bingang Guo, Takefumi Hidaka, Junichiro Takahashi | 2018-04-17 |
| 8796949 | Ultraviolet light irradiation device | Kenji Awamoto, Bingang Guo, Koji Shinohe, Yoshitaka Chigi, Tetsuro Nishimoto +2 more | 2014-08-05 |
| 7825596 | Full color surface discharge type plasma display device | Noriyuki Awaji, Shinji Kanagu, Tatsutoshi Kanae, Masayuki Wakitani, Toshiyuki Nanto +1 more | 2010-11-02 |
| 7335322 | Photochromic material comprising composite oxides | Akira Nakazawa | 2008-02-26 |
| 7208203 | Method for forming metal oxide film and method for forming secondary electron emission film in gas discharge tube | Hitoshi Yamada, Akira Tokai, Manabu Ishimoto, Akira Nakazawa, Kenji Awamoto | 2007-04-24 |
| 7208877 | Full color surface discharge type plasma display device | Noriyuki Awaji, Shinji Kanagu, Tatsutoshi Kanae, Masayuki Wakitani, Toshiyuki Nanto +1 more | 2007-04-24 |
| 7133007 | Full color surface discharge type plasma display device | Shinji Kanagu, Tatsutoshi Kanae, Masayuki Wakitani, Toshiyuki Nanto | 2006-11-07 |
| 7083681 | Method for forming coating film on internal surface of elongated tube and unit for forming the same | Hitoshi Yamada, Akira Tokai, Manabu Ishimoto, Kenji Awamoto | 2006-08-01 |
| 7049748 | DISPLAY DEVICE EMPLOYING GAS DISCHARGE TUBES ARRANGED IN PARALLEL BETWEEN FRONT AND REAR SUBSTRATES TO COMPRISE A DISPLAY SCREEN, EACH TUBE HAVING A LIGHT EMITTING SECTION AS PART OF THE DISPLAY SCREEN AND A CLEANING SECTION CONNECTED TO THE LIGHT EMITTING SECTION BUT DISPLACED FROM THE DISPLAY SCREEN | Akira Tokai, Hitoshi Yamada, Manabu Ishimoto | 2006-05-23 |
| 7041392 | Photochromic, photochromic material and method for manufacturing the same | Akira Nakazawa | 2006-05-09 |
| 7030563 | Full color surface discharge type plasma display device | Noriyuki Awaji, Shinji Kanagu, Tatsutoshi Kanae, Masayuki Wakitani, Toshiyuki Nanto +1 more | 2006-04-18 |
| 7025649 | Method for manufacturing plasma display panel assembly | Norivuki Awaji | 2006-04-11 |
| 6969292 | Method for forming phosphor layer of gas discharge tube and method for fabricating phosphor layer supporting member | Akira Tokai, Hitoshi Yamada, Manabu Ishimoto | 2005-11-29 |
| 6932664 | Gas discharge tube and method for forming electron emission layer in gas discharge tube | Hitoshi Yamada, Akira Tokai, Manabu Ishimoto | 2005-08-23 |
| 6930442 | Display device | Kenji Awamoto, Akira Tokai, Hitoshi Yamada, Manabu Ishimoto | 2005-08-16 |
| 6914382 | Display device having array of elongated discharge tubes | Manabu Ishimoto, Akira Tokai, Hitoshi Yamada, Kenji Awamoto | 2005-07-05 |
| 6893677 | Method for forming coating film on internal surface of elongated tube and unit for forming the same | Hitoshi Yamada, Akira Tokai, Manabu Ishimoto, Kenji Awamoto | 2005-05-17 |
| 6861803 | Full color surface discharge type plasma display device | Shinji Kanagu, Masayuki Wakitani, Toshiyuki Nanto, Mamaru Miyahara | 2005-03-01 |
| 6857923 | Method of forming phosphor layer of gas discharge tube | Hitoshi Yamada, Akira Tokai, Manabu Ishimoto | 2005-02-22 |
| 6850007 | Plasma display panel assembly and method for manufacturing the same | Noriyuki Awaji | 2005-02-01 |
| 6841929 | Display device with a plurality of light-emitting tubes arranged in parallel | Manabu Ishimoto, Akira Tokai, Hitoshi Yamada, Kenji Awamoto | 2005-01-11 |
| 6838824 | Full color surface discharge type plasma display device | Noriyuki Awaji, Shinji Kanagu, Tatsutoshi Kanae, Masayuki Wakitani, Toshiyuki Nanto +1 more | 2005-01-04 |