Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10135998 | Key telephone system, control method, terminal, and program | Hideo Maki, Shozo Shikenya, Tetsuya Takekawa, Daisuke IWATA | 2018-11-20 |
| 10092472 | Nurse call system, interface unit, and nurse call connection method | Takuya Omi, Shigeru Maruyama, Kou Nogami, Rintarou Ashida, Ken Utsuki | 2018-10-09 |