Invention Publication
- Patent Title: RECORDING MEDIUM, INFORMATION RECORDING METHOD, INFORMATION READING METHOD, AND COMPOSITION FOR PRODUCING RECORDING LAYER
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Application No.: US18506171Application Date: 2023-11-10
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Publication No.: US20240119965A1Publication Date: 2024-04-11
- Inventor: KOTA ANDO , MASAKO YOKOYAMA , NAOYA SAKATA , KENJI TAGASHIRA , HIDEKAZU ARASE
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee Address: JP Osaka
- Priority: JP 21094058 2021.06.04
- Main IPC: G11B7/245
- IPC: G11B7/245 ; C09B69/10 ; G11B7/2533

Abstract:
A recording medium includes a recording layer. The recording layer includes an aliphatic polymer, and a multiphoton absorption compound containing at least one bond selected from the group consisting of a carbon-carbon double bond, a carbon-nitrogen double bond, and a carbon-carbon triple bond, and having a multiphoton absorption characteristic. When the thickness of the recording layer is 100 μm, the transmittance of the recording layer in the thickness direction with respect to light having a wavelength of 405 nm is greater than or equal to 80%.
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