Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7611934 | Semiconductor device and method of fabricating the same | Risho Koh, Yukishige Saito, Jong-Wook Lee | 2009-11-03 |
| 7485923 | SOI semiconductor device with improved halo region and manufacturing method of the same | Risho Koh, Yukishige Saito, Jyonu Ri | 2009-02-03 |
| 7247910 | MOSFET formed on a silicon-on-insulator substrate having a SOI layer and method of manufacturing | Jong-Wook Lee | 2007-07-24 |
| 7211517 | Semiconductor device and method that includes reverse tapering multiple layers | Yukishige Saito, Risho Koh, Jyonu Ri | 2007-05-01 |
| 6975001 | Semiconductor device and method of fabricating the same | Risho Koh, Yukishige Saito, Jong-Wook Lee | 2005-12-13 |
| 6933569 | SOI MOSFET | Risho Koh, Shigeharu Yamagami, Jong-Wook Lee, Hitoshi Wakabayashi, Yukishige Saito +6 more | 2005-08-23 |
| 6351059 | Field-emission type cold cathode and application thereof | — | 2002-02-26 |
| 6084341 | Electric field emission cold cathode | — | 2000-07-04 |
| 6060823 | Field emission cold cathode element | Akihiko Okamoto, Yoshinori Tomihari, Naruaki Takada | 2000-05-09 |
| 6043103 | Field-emission cold cathode and method of manufacturing same | — | 2000-03-28 |
| 6031322 | Field emission cold cathode having a serial resistance layer divided into a plurality of sections | Masayuki Yoshiki | 2000-02-29 |
| 6024618 | Method of operating electron tube | Hideo Makishima | 2000-02-15 |
| 6018215 | Field emission cold cathode having a cone-shaped emitter | — | 2000-01-25 |
| 5924903 | Method of fabricating a cold cathode for field emission | — | 1999-07-20 |
| 5910701 | Field-emission cold cathode and manufacturing method for same | — | 1999-06-08 |
| 5717275 | Multi-emitter electron gun of a field emission type capable of emitting electron beam with its divergence suppressed | — | 1998-02-10 |
| 5666020 | Field emission electron gun and method for fabricating the same | — | 1997-09-09 |
| 5627402 | Variable-capacitance device and semiconductor integrated circuit device having such variable-capacitance device | — | 1997-05-06 |
| 5620350 | Method for making a field-emission type electron gun | — | 1997-04-15 |
| 5587326 | Method of forming bipolar junction transistor of epitaxial planar type | — | 1996-12-24 |
| 5576221 | Manufacturing method of semiconductor device | Tsutomu Tashiro | 1996-11-19 |
| 5506442 | Variable-capacitance device and semiconductor integrated circuit device having such variable-capacitance device | — | 1996-04-09 |
| 5397731 | Method of manufacturing semiconductor integrated circuit device | — | 1995-03-14 |
| 5374846 | Bipolar transistor with a particular base and collector regions | — | 1994-12-20 |
| 5099304 | Semiconductor device with insulating isolation groove | Mitsuhiro Sugiyama | 1992-03-24 |