Issued Patents All Time
Showing 26–47 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8129905 | Phosphor and light emitting device using the phosphor | Masahiro Sakai, Seigo Shiraishi | 2012-03-06 |
| 8040063 | Blue phosphor, light-emitting device, and plasma display panel | Yayoi Kitamura, Seigo Shiraishi, Kazuhiko Sugimoto, Mituru Harada | 2011-10-18 |
| 7902756 | Phosphor, light-emitting device, and plasma display panel | Masahiro Sakai, Seigo Shiraishi, Takehiro Zukawa | 2011-03-08 |
| 7285913 | Plasma display device having blue phosphor layers with alkaline earth metal aluminate containing molybdenum or tungsten | Takehiro Zukawa, Masahiro Sakai, Seigo Shiraishi, Kazuhiko Sugimoto, Masaki Aoki +1 more | 2007-10-23 |
| 7238303 | Phosphor and plasma display device | Takehiro Zukawa, Masahiro Sakai, Seigo Shiraishi, Kazuhiko Sugimoto, Masaki Aoki +1 more | 2007-07-03 |
| 7056853 | Oxide ceramic material, ceramic substrate employing the same, ceramic laminate device, and power amplifier module | Osamu Inoue, Kenji Harada | 2006-06-06 |
| 6989626 | Piezoelectric transformer | Katsu Takeda, Hiroshi Nakatsuka, Takeshi Yamaguchi, Katsunori Moritoki | 2006-01-24 |
| 6835681 | Dielectric ceramic composition and dielectric device | Hiroshi Kagata, Junichi Kato, Hiroyuki Hase | 2004-12-28 |
| 6812623 | Piezoelectric transformer | Katsu Takeda, Hiroshi Nakatsuka, Takeshi Yamaguchi, Katsunori Moritoki | 2004-11-02 |
| 6794796 | Piezoelectric transformer, piezoelectric transformer drive circuit, piezoelectric transformer drive method and cold cathode tube drive apparatus using piezoelectric transformer | Hiroshi Nakatsuka, Katsunori Moritoki, Toshiyuki Asahi, Osamu Kawasaki | 2004-09-21 |
| 6762142 | Dielectric ceramic and dielectric device | Junichi Kato, Hiroshi Kagata, Kenji Iijima | 2004-07-13 |
| 6737816 | Piezoelectric transformer, piezoelectric transformer drive circuit, piezoelectric transformer drive method and cold cathode tube drive apparatus using piezoelectric transformer | Hiroshi Nakatsuka, Katsunori Moritoki, Toshiyuki Asahi, Osamu Kawasaki | 2004-05-18 |
| 6720705 | Method of driving a piezoelectric transformer and power source apparatus using the same | Hiroshi Nakatsuka, Takeshi Yamaguchi, Katsu Takeda, Katsunori Moritoki | 2004-04-13 |
| 6583534 | Piezoelectric transformer, piezoelectric transformer drive circuit, piezoelectric transformer drive method and cold cathode tube drive apparatus using piezoelectric transformer | Hiroshi Nakatsuka, Katsunori Moritoki, Toshiyuki Asahi, Osamu Kawasaki | 2003-06-24 |
| 6514427 | Piezoelectric ceramic composition and piezoelectric element containing the same | Masamitsu Nishida, Keiichi Takahashi, Junichi Kato | 2003-02-04 |
| 6509700 | Apparatus and method for driving a cathode discharge tube | Hiroshi Nakatsuka, Takeshi Yamaguchi, Katsu Takeda, Katsunori Moritoki | 2003-01-21 |
| 6458287 | Piezoelectric ceramic composition and piezoelectric element containing the same | Masamitsu Nishida, Keiichi Takahashi, Hiroshi Sogou, Junichi Kato | 2002-10-01 |
| 6433458 | Method and unit for driving piezoelectric transformer used for controlling luminance of cold-cathode tube | Hiroshi Nakatsuka, Katsunori Moritoki, Toshiyuki Asahi, Osamu Kawasaki | 2002-08-13 |
| 6118209 | Piezoelectric ceramic composition and piezoelectric transformer | Toshiyuki Asahi, Masamitsu Nishida, Hiroyuki Hase | 2000-09-12 |
| 5700745 | Dielectric ceramic compositions and dielectric resonators | Koji Shimoyama, Syunichiro Kawashima, Koichi Kugimiya | 1997-12-23 |
| 5470808 | Dielectric ceramic compositions and dielectric resonators | Yoichiro Yokotani, Koichi Kugimiya | 1995-11-28 |
| 5356843 | Dielectric ceramic compositions and dielectric resonators | Yoichiro Yokotani, Koichi Kugimiya | 1994-10-18 |