Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10016907 | Die-cutting scrap removal device | Ju Hyun Song | 2018-07-10 |
| 8327679 | Folding system for a cutting blade | — | 2012-12-11 |
| 7694543 | Folding system | — | 2010-04-13 |
| 7396457 | Apparatus and method for recovering acetic acid and catalyst in process for preparation of 2,6-naphthalenedicarboxylic acid | Ik-Hyun Kwon, Young-Gyo Choi, Jong-Cheul Ji | 2008-07-08 |
| 6675682 | Cutting apparatus and automatic cutting system of blade's raw material of blanking die | — | 2004-01-13 |
| 6405574 | Folding system for a cutting blade | — | 2002-06-18 |
| 6324950 | Cutting apparatus and automatic cutting system of blade's raw material of blanking die | — | 2001-12-04 |
| 6270250 | Watch having an opening | — | 2001-08-07 |
| 6128940 | Folding system for a cutting blade | — | 2000-10-10 |
| 5992485 | Sawing machine and sawing processing method for a plate member | — | 1999-11-30 |
| 5966974 | Automatic learning apparatus for folding machine | — | 1999-10-19 |
| 5870919 | Folding system for a cutting blade | — | 1999-02-16 |
| 5787750 | Folding system for a cutting blade | — | 1998-08-04 |
| 5749276 | Cutting apparatus and automatic cutting system of blade's raw material of blanking die | — | 1998-05-12 |
| 5589090 | Laser cutting apparatus with means for measuring cutting groove width | — | 1996-12-31 |