| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | WIPO (World Intellectual Property Organization) | 3 | |
| #3 | Japan | 2 | |
| #4 | Republic of Korea | 2 | |
| #5 | China | 1 | |
| #6 | EPO (European Patent Office) | 1 | |
| #7 | Taiwan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Computer technology | |
| #3 | Medical technology | |
| #4 | Chemical engineering | |
| #5 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Electric discharge tubes | |
| #2 | Electric digital data processing | |
| #3 | AC and DC conversion devices | |
| #4 | Plasma technique | |
| #5 | Dentistry | |
| #6 | Magnets and transformers | |
| #7 | Special information storage |
| # | Name | Total Patents |
|---|---|---|
| #1 | Honda Tadashi | 9 |
| #2 | Nelson Edwin A | 3 |
| #3 | Webb Ronald C | 3 |
| #4 | Tadashi Honda | 1 |
| Publication | Filing date | Title |
|---|---|---|
| JP2018092297A | Data erasing method | |
| US2017243682A1 | Magnetic date eraser | |
| TW201320063A | Magnetic data eraser | |
| US4540365A | Dental cleansing system |