Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D869424 | Intercom | Mitsuru Nagatsuka | 2019-12-10 |
| D864146 | Intercom | — | 2019-10-22 |
| D844582 | Interphone | — | 2019-04-02 |
| D842262 | Interphone | — | 2019-03-05 |
| D842263 | Interphone | — | 2019-03-05 |
| D773428 | Interphone collective entrance unit | — | 2016-12-06 |
| D771007 | Interphone master unit | — | 2016-11-08 |
| D771008 | Interphone master unit | — | 2016-11-08 |
| D766204 | Interphone | — | 2016-09-13 |
| D765051 | Interphone | — | 2016-08-30 |
| D761752 | Interphone | — | 2016-07-19 |
| D752011 | Interphone | — | 2016-03-22 |
| D752012 | Interphone | — | 2016-03-22 |
| D744452 | Interphone | — | 2015-12-01 |
| D744451 | Interphone | — | 2015-12-01 |
| D729760 | Interphone | — | 2015-05-19 |
| D717761 | Interphone | — | 2014-11-18 |
| D686184 | Interphone | Katsuhiko Ibuki | 2013-07-16 |