Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6481215 | Sealing device for gas compressor-expander | Kazuo Ikegami, Hiroyuki Suzuki | 2002-11-19 |
| 6373959 | Electroacoustic transducer | Takahiro Sone | 2002-04-16 |
| D453118 | Audible signal for alarms | — | 2002-01-29 |