Issued Patents 2017
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9843848 | Speaker unit | Hiroyuki Shiojima, Katsutoki Hanayama, Satoshi Hayakawa | 2017-12-12 |
| 9774937 | Speaker unit | Hiroyuki Shiojima, Katsutoki Hanayama, Satoshi Hayakawa | 2017-09-26 |
| 9713304 | Self-propelled mower | — | 2017-07-25 |
| 9615155 | Speaker apparatus and speaker box | Masao Yoshida | 2017-04-04 |