Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6664760 | Cellular phone charger with data backup function and cellular phone data backup device | — | 2003-12-16 |
| 6561138 | Water heater with a flame arrester | Hideo Chikazawa, Masaru Kodama | 2003-05-13 |
| 6540504 | Combustion appliance with flame blocking device | Hideo Chikazawa | 2003-04-01 |