| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 5 | |
| #2 | Taiwan | 2 | |
| #3 | United States | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 2 | |
| #5 | China | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Special information storage |
| # | Name | Total Patents |
|---|---|---|
| #1 | Tsuchiya Masayoshi | 10 |
| #2 | Takatani Yoshihiro | 8 |
| #3 | Satoh Mitsuro | 7 |
| #4 | Sato Mitsuo | 5 |
| #5 | Yumoto Seiji | 2 |
| #6 | Asahara Yasumichi | 2 |
| Publication | Filing date | Title |
|---|---|---|
| JP2018182498A | Broadcast radio wave receiver | |
| JP2018093462A | Portable receiver and wireless writing device | |
| JP2018155967A | Recording medium and portable voice regeneration device | |
| JP2018125798A | Portable voice reproducer | |
| WO2015163271A1 | Optical disc | |
| TW201939487A | Reading method |