Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6627140 | Method for manufacturing diaphragm for loudspeaker | Hitoshi Sato, Sinya Mizone, Hiroko Yamazaki | 2003-09-30 |
| 6624209 | Polymer polyol composition, process for producing the same, and process for producing polyurethane resin | Tetsuji Kawamoto, Tomio Kawazoe, Munekazu Satake, Futoshi Kitatani, Tsuyoshi Tomosada +2 more | 2003-09-23 |