Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6818161 | Molded body of thermoplastic resin having sound absorption characteristics | Hisao Tokoro, Hiroshi Yamazaki, Satoru Shioya, Akinobu Hira | 2004-11-16 |
| 6738570 | Lens apparatus having vapor-resistant ventilation and optical instrument using lens apparatus | Jun Sugita, Shigeki Satoh | 2004-05-18 |
| 6686400 | Foamed and expanded beads of polyester-based resin and foam molding obtained therefrom | Tomoo Tokiwa, Hidehiro Sasaki | 2004-02-03 |