Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6461125 | Air pump, air chamber device using air pump, and wristwatch having air chamber device | Hiroki Hanawa | 2002-10-08 |
| 6418086 | Battery lid structure for a timepiece case and a timepiece case | Takasuke Yokote | 2002-07-09 |