Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7192184 | Portable watch | Haruki Hiranuma | 2007-03-20 |
| 7175341 | Wrist-portable apparatus | Haruki Hiranuma | 2007-02-13 |
| 7025494 | Wrist-portable apparatus | Haruki Hiranuma | 2006-04-11 |
| 6886975 | Watch | Haruki Hiranuma, Hisamitsu Yoshikawa | 2005-05-03 |
| 6821014 | Rotating-type bezel apparatus and portable timepiece having rotating-type bezel apparatus | Haruki Hiranuma, Hisamitsu Yoshikawa | 2004-11-23 |
| 6788623 | Wrist watch | Haruki Hiranuma, Isao Ajiro | 2004-09-07 |
| 6648502 | Wrist-portable electronic apparatus and air chamber device | Haruki Hiranuma | 2003-11-18 |