Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7108620 | Game dart having ballast | — | 2006-09-19 |
| 6854530 | Method for driving electric percussion tool | — | 2005-02-15 |
| 6807128 | Position detecting and correcting device for timepiece | — | 2004-10-19 |
| 6804173 | Rotary members for timepiece having reflector sheets | — | 2004-10-12 |
| 6798573 | Device for generating a 3-D image from two 2-D pictures | — | 2004-09-28 |
| 6731571 | Position detecting and correcting device for timepiece | — | 2004-05-04 |
| 6543779 | Dart board | — | 2003-04-08 |
| 6516813 | Thermal finger nail decal attaching device | — | 2003-02-11 |
| 6499740 | Score ring structure for dart boards | — | 2002-12-31 |
| 6481412 | Target block structure of electronic dartboard | — | 2002-11-19 |
| 6450501 | Dartboard | — | 2002-09-17 |
| 6375193 | Dartboard | — | 2002-04-23 |
| 6371486 | Hinge means for a dart board assembly | — | 2002-04-16 |
| 6302809 | Noise reduction dart board | — | 2001-10-16 |
| 6135457 | Zero zone structure for a dart board | — | 2000-10-24 |
| 6053499 | Dart board having a functions locking button | — | 2000-04-25 |
| 6017021 | Liquid aerating assembly having a safety device | — | 2000-01-25 |
| 5954339 | Dart game having an automatic player | — | 1999-09-21 |
| 5934677 | Score indicating method for a dart game | — | 1999-08-10 |
| 5934706 | Skate device having magnetic support | — | 1999-08-10 |
| 5897116 | Dartboard having improved sliding segments | — | 1999-04-27 |
| 5884916 | Dartboard having a protective target | — | 1999-03-23 |
| D400932 | Electronic dart game | — | 1998-11-10 |
| D393491 | Electronic dart game | — | 1998-04-14 |
| 5735527 | Dart board having a dart support | — | 1998-04-07 |