| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 3 | |
| #2 | United Kingdom | 3 | |
| #3 | Italy | 3 | |
| #4 | Japan | 3 | |
| #5 | United States | 3 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Special information storage |
| # | Name | Total Patents |
|---|---|---|
| #1 | Scott John C | 3 |
| #2 | Mcclure Robert I | 3 |
| #3 | Hall Robert Conrad | 2 |
| #4 | Vogt Noland Erwin | 2 |
| #5 | Robaato Ai Matsukurua | 1 |
| #6 | Robaato Konratsudo Hooru | 1 |
| #7 | Noorando Aauin Boukuto | 1 |
| #8 | Vogt Noland E | 1 |
| #9 | Jiyon Shii Sukotsuto | 1 |
| #10 | Hall Robert C | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4320430A | Recording disc cartridge closure mechanism | |
| US4320425A | Centering and mounting apparatus for a magnetic recording disc | |
| US4280155A | Method of improving air flow in compact disc drive |