Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11198053 | Functional shoes and functional device for functional shoes | — | 2021-12-14 |
| 10687580 | Functional shoes and functional unit for shoes | — | 2020-06-23 |
| 7594418 | Arc type blade transfer apparatus | — | 2009-09-29 |
| 7037054 | Apparatus for forming groove used in cutting blade | — | 2006-05-02 |
| 6629442 | Cutting blade bending apparatus capable of precisely forming acute angle | — | 2003-10-07 |
| 6422052 | Device for forming cutting blade for prints | — | 2002-07-23 |
| 6367302 | Method for bending and cutting metal strip material | — | 2002-04-09 |
| 6324953 | Device for forming cutting blade for prints | — | 2001-12-04 |
| 6308551 | Apparatus for bending cutting blade | — | 2001-10-30 |
| 6145359 | Device for forming cutting blade for prints | — | 2000-11-14 |
| 5706438 | Data transmission device for transmitting converted data at a controlled transmission rate | Hae-min Choi | 1998-01-06 |
| 5672838 | Accompaniment data format and video-song accompaniment apparatus adopting the same | Deok-hyun Lee | 1997-09-30 |
| 5574239 | Video-song accompaniment apparatus and method for displaying reserved song | Jae-yong Kang | 1996-11-12 |
| 5561649 | Disk recording medium and reproduction method and apparatus thereof | Rae-hwan Lee, Hwa-jin Jeon, Kwang-Sik Choi, Sang-hwa Yun, Kwang-lyeol Song +5 more | 1996-10-01 |
| 5546368 | Disk recording medium and reproduction method and apparatus thereof | Rae-hwan Lee, Hwa-jin Jeon, Kwang-Sik Choi, Sang-hwa Yun, Kwang-lyeol Song +5 more | 1996-08-13 |