Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6762544 | Metal cathode for electron tube | Yoon-Chang Kim, Dong-Kyun Seo, Bu-Chul Sin | 2004-07-13 |
| 6511632 | Cathode material of electron beam device and preparation method thereof | Jong-Seo Choi, Yoon-Chang Kim, Nikolay Osaulenko, Vladislav Shutovsky, Oleg Kostantinovich Kultashev | 2003-01-28 |
| 6262532 | Plasma display device with electrically floated auxiliary electrodes | Deuk-il Park, Jong-Seo Choi | 2001-07-17 |
| 6051928 | Plasma display device with ferroelectric dielectric layer | Kwi-Seok Choi, Su Chan LEE, Sang Jin Lee, Jong-Seo Choi | 2000-04-18 |
| 5977699 | Cathode for electron tube | Jong-Seo Choi, Soo Chan LEE, Deuk-il Park | 1999-11-02 |
| 5874802 | Cathode body, electron gun, and cathode ray tube employing a ferroelectric emitter | Jong-Seo Choi, Kwi-seuk Choi | 1999-02-23 |
| 5821683 | Cathode assembly having thermion emitter of cermet pallet | Jong-Seo Choi, Geun-Bae Kim, Kwi-seuk Choi, Sang Won Lee | 1998-10-13 |
| 5789113 | Active material for nickel electrode and nickel electrode having the same | Jong-Seo Choi, Kwi-seuk Choi, Geun-Bae Kim, Sang Won Lee | 1998-08-04 |
| 5773922 | Direct heating cathode and process for producing such | Kwang-Min Lee, Jong-Seo Choi, Geun-Bae Kim, Kwi-seuk Choi | 1998-06-30 |
| 5708321 | Cathode for electron tube having an electron-emission layer including a lanthanum-magnesium-manganese oxide | Jong-Seo Choi, Kwi-seuk Choi, Geun-Bae Kim, Sang Won Lee | 1998-01-13 |
| 5684357 | Thermion emitting oxide cathode and method for making the same | Kwang-Min Lee, Jong-Seo Choi, Geun-Bae Kim, Kwi-seuk Choi, Sang Won Lee | 1997-11-04 |
| 5681665 | Negative electrode for alkaline storage battery | Sang Won Lee, Hwang-chul Bae, Geun-Bae Kim, Jong-Seo Choi, Kwi-seuk Choi | 1997-10-28 |
| 5679130 | Hydrogen occluded alloy and process for producing such | Kwang-Min Lee, Jong-Seo Choi, Geun-Bae Kim, Kwi-seuk Choi, Sang Won Lee | 1997-10-21 |
| 5677592 | Cathode ray tube | Jong-Seo Choi, Kwi-seuk Choi | 1997-10-14 |
| 5620813 | Positive nickel electrode for alkaline storage battery | Sang Won Lee, Hwang-chul Bae, Geun-Bae Kim, Jong-Seo Choi, Kwi-seuk Choi | 1997-04-15 |
| 5173633 | Dispenser cathode | Jong In JUNG, Jong-Suh Choi, Hwan-Chul Rho | 1992-12-22 |