| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 2,806 | |
| #2 | United States | 33 | |
| #3 | EPO (European Patent Office) | 20 | |
| #4 | WIPO (World Intellectual Property Organization) | 20 | |
| #5 | China | 19 | |
| #6 | Germany | 7 | |
| #7 | France | 5 | |
| #8 | Norway | 5 | |
| #9 | Belgium | 4 | |
| #10 | Australia | 3 | |
| #11 | United Kingdom | 3 | |
| #12 | Taiwan | 2 | |
| #13 | Canada | 1 | |
| #14 | Indonesia | 1 | |
| #15 | Italy | 1 | |
| #16 | Singapore | 1 |
| # | Industry | |
|---|---|---|
| #1 | Telecommunications | |
| #2 | Environmental technology | |
| #3 | Audio-visual technology | |
| #4 | Digital networks | |
| #5 | Computer technology | |
| #6 | Control | |
| #7 | Medical technology | |
| #8 | Basic communication technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kusunoki Hirokazu | 145 |
| #2 | Ando Toru | 136 |
| #3 | Kitagawa Kazumi | 120 |
| #4 | Abe Tomohito | 96 |
| #5 | Yamakawa Seiya | 87 |
| #6 | Takeda Masahiko | 81 |
| #7 | Sumiya Hiroshi | 79 |
| #8 | Nagayama Munehito | 75 |
| #9 | Kato Isao | 72 |
| #10 | Ohashi Teruo | 66 |
| Publication | Filing date | Title |
|---|---|---|
| US10944940B1 | Intercom system for collective housing | |
| JP2020102881A | Intercom system | |
| JP2020080579A | Intercom system | |
| JP2021005847A | Dipole antenna | |
| JP2021005848A | antenna | |
| JP2020182010A | Nurse call system | |
| JP2020182033A | Intercom system | |
| JP2020167559A | Multiple dwelling house intercom system | |
| JP2020167543A | Karaoke facility intercom system | |
| JP2020167538A | Visitor dealing system | |
| JP2020167558A | Multiple dwelling house intercom system | |
| JP2020162043A | Intercom device | |
| JP2020162012A | Intercom system | |
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| JP2020155965A | Intercom device |