Erasing unit and erasing method
US11173740B2 · kind B2 · utility
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1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 11, 2018 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | Aug 23, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M2205/38
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An erasing unit according to an embodiment of the present disclosure is a unit that performs erasing of information written on a reversible recording medium. This erasing unit includes: a light source section including one or a plurality of laser devices; and a controller that controls the light source section to cause the light source section to emit a smaller number of laser light beams having emission wavelengths than the number of the recording layers included in the reversible recording medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.