Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6147443 | Electron emission device and display device using the same | Takashi Chuman, Nobuyasu Negishi, Shingo Iwasaki, Kiyohide Ogasawara, Hiroshi Ito | 2000-11-14 |
| 6144155 | Electron emission device and display device using the same | Takashi Chuman, Nobuyasu Negishi, Shingo Iwasaki, Kiyohide Ogasawara, Hiroshi Ito | 2000-11-07 |
| 6130503 | Electron emission device and display using the same | Nobuyasu Negishi, Takashi Chuman, Kiyohide Ogasawara, Shingo Iwasaki, Hiroshi Ito | 2000-10-10 |
| 6125041 | Card-type electronic device | Noriaki Shiba, Atsuko Yamaguchi | 2000-09-26 |
| 6066922 | Electron emission device and display device using the same | Shingo Iwasaki, Kiyohide Ogasawara, Takashi Chuman, Nobuyasu Negishi, Hiroshi Ito +4 more | 2000-05-23 |
| 6023125 | Electron emission device and display using the same | Kiyohide Ogasawara, Hiroshi Ito | 2000-02-08 |
| 5990605 | Electron emission device and display device using the same | Kiyohide Ogasawara, Hiroshi Ito, Masataka Yamaguchi, Shingo Iwasaki, Nobuyasu Negishi +1 more | 1999-11-23 |
| 5986390 | Electron emission device having peak intensity ratio characteristic of raman spectrum for fold ring of SiO.sub.2 | Takashi Chuman | 1999-11-16 |
| 5894189 | Cold electron emission display device | Kiyohide Ogasawara, Nobuyoshi Koshida | 1999-04-13 |
| 5681633 | Magneto optical disc, apparatus for reproducing the same and method of reproducing the same | Nobuaki Onagi, Nobuyasu Negishi | 1997-10-28 |
| 5382460 | Optical recording disk and production process therefor | Nobuaki Onagi, Shinichiro Suzuki | 1995-01-17 |
| 5217850 | Optical recording disk and manufacturing method thereof | Seiro Fujii, Satoshi Jinno, Takahiro Kobayashi, Masataka Yamaguchi, Nobuyasu Negishi +4 more | 1993-06-08 |
| 5087340 | Method of making magneto-optical recording disk | Nobuaki Onagi, Shinichiro Suzuki, Seiro Fujii, Takahiro Kobayashi, Masayasu Yamaguchi +1 more | 1992-02-11 |
| 5000834 | Facing targets sputtering device | — | 1991-03-19 |