| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 4 | |
| #2 | EPO (European Patent Office) | 2 | |
| #3 | WIPO (World Intellectual Property Organization) | 2 | |
| #4 | Canada | 1 | |
| #5 | China | 1 | |
| #6 | EAPO (Eurasian Patent Organization) | 1 | |
| #7 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Computer technology |
| # | Technology | |
|---|---|---|
| #1 | Special information storage | |
| #2 | Data recognition and presentation | |
| #3 | Electric digital data processing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Shigetomi Takashi | 10 |
| #2 | Komaki Tsunematsu | 6 |
| #3 | Saito Tetsuo | 2 |
| #4 | Takashi Shigetomi | 1 |
| #5 | Tsunematsu Komaki | 1 |
| Publication | Filing date | Title |
|---|---|---|
| JP2006179024A | Computer system | |
| EP1672511A2 | Information protection system, storage medium used for the same, and storage medium containing case | |
| JP2004199708A | Storage medium with electronic circuit and computer system with this storage medium | |
| JP2004252552A | Control system of portable electronic equipment, and portable terminal | |
| JPH10275446A | Recording medium and its manufacture |