Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684357 | Thermion emitting oxide cathode and method for making the same | Kwang-Min Lee, Kyu-Nam Joo, Jong-Seo Choi, Kwi-seuk Choi, Sang Won Lee | 1997-11-04 |
| 5681665 | Negative electrode for alkaline storage battery | Sang Won Lee, Hwang-chul Bae, Jong-Seo Choi, Kwi-seuk Choi, Kyu-Nam Joo | 1997-10-28 |
| 5679130 | Hydrogen occluded alloy and process for producing such | Kwang-Min Lee, Kyu-Nam Joo, Jong-Seo Choi, Kwi-seuk Choi, Sang Won Lee | 1997-10-21 |
| 5620813 | Positive nickel electrode for alkaline storage battery | Sang Won Lee, Hwang-chul Bae, Jong-Seo Choi, Kwi-seuk Choi, Kyu-Nam Joo | 1997-04-15 |