Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10648104 | System and method for forming nonwoven nanofiber material | Keiko Muto | 2020-05-12 |
| 7510047 | Speaker edge and resonator panel assembly | Keiko Muto | 2009-03-31 |
| 6925191 | Flat panel speaker | Michael Petroff, Keiko Muto | 2005-08-02 |
| 6687381 | Planar loudspeaker | Muto Keiko | 2004-02-03 |