公开(公告)号：US20130100791A1

公开(公告)日：2013-04-25

申请号：US13714645

申请日：2012-12-14

Applicant: Fujifilm Corporation

Inventor： Hidehiro MOCHIZUKI ,  Toshio SASAKI ,  Toshiyuki KITAHARA

IPC: G11B7/24035 ,  G11B7/0055

CPC classification number: G11B7/24035 ,  B82Y10/00 ,  G11B7/00451 ,  G11B7/00452 ,  G11B7/0055 ,  G11B7/245 ,  G11B7/246 ,  G11B7/2467 ,  G11B7/2495 ,  Y10T428/265 ,  Y10T428/31504

Abstract: An optical information recording medium includes: a recording layer 12 comprising a multi-photon absorption compound and a one-photon absorption compound; and a supporting member (base layer 11) configured to support the recording layer 12. In this optical information recording medium, absorption of multiple photons by the multi-photon absorption compound and absorption of one photon by the one-photon absorption compound cause a void to be generated in the recording layer, whereby information is recordable by modulation based on a presence or absence of a void.

Abstract translation: 光信息记录介质包括：包含多光子吸收化合物和单光子吸收化合物的记录层12; 以及被配置为支撑记录层12的支撑构件（基底层11）。在该光学信息记录介质中，多光子吸收化合物吸收多个光子并且通过单光子吸收化合物吸收一个光子导致空隙 在记录层中产生，由此基于空隙的存在或不存在可以通过调制记录信息。

公开(公告)号：US20150380042A1

公开(公告)日：2015-12-31

申请号：US14845492

申请日：2015-09-04

Applicant: FUJIFILM CORPORATION

Inventor： Hidehiro MOCHIZUKI ,  Tetsuya WATANABE ,  Toshio SASAKI ,  Tatsuo MIKAMI ,  Takumi NAKAMURA

IPC: G11B7/246 ,  C08F220/18 ,  C08F226/06

CPC classification number: G11B7/246 ,  C08F220/18 ,  C08F226/06 ,  C09D4/00 ,  G11B7/24038 ,  G11B7/2405 ,  G11B7/245 ,  G11B7/256 ,  C08F2220/185 ,  C08F220/34

Abstract: An optical information recording medium includes at least one recording layer. The recording layer includes a recording material comprising a polymer compound to which a one-photon absorption dye is bonded, and a coupling strength Δ2 between the one-photon absorption dye and the polymer compound in the recording material is higher than a coupling strength estimated to be exerted between the same one-photon absorption dye and the same polymer compound if the one-photon absorption dye is dispersed in the polymer compound in the recording material.

Abstract translation: 光学信息记录介质包括至少一个记录层。 记录层包括记录材料，该记录材料包含与单光子吸收染料结合的高分子化合物，记录材料中单光子吸收染料和高分子化合物之间的耦合强度＆Dgr; 2高于耦合强度 如果单光子吸收染料分散在记录材料中的高分子化合物中，则估计它们在相同的单光子吸收染料和相同的聚合物化合物之间施加。

公开(公告)号：US20140219069A1

公开(公告)日：2014-08-07

申请号：US14171927

申请日：2014-02-04

Applicant: FUJIFILM Corporation

Inventor： Yasushi HATTORI ,  Hidehiro MOCHIZUKI ,  Toshio SASAKI

IPC: G11B5/73 ,  G11B13/04

CPC classification number: G11B5/7305 ,  G11B5/70642 ,  G11B5/70678 ,  G11B5/738 ,  G11B2005/0021

Abstract: The magnetic recording medium is a particulate magnetic recording medium for heat-assisted recording, as well as includes a magnetic layer comprising ferromagnetic powder and binder on a nonmagnetic organic material support and a heat-diffusing layer of higher thermal conductivity than the magnetic layer between the nonmagnetic organic material support and the magnetic layer.

Abstract translation: 磁记录介质是用于热辅助记录的颗粒状磁记录介质，并且包括在非磁性有机材料载体上包含铁磁粉末和粘合剂的磁性层，以及具有比磁性层之间的磁性层更高导热性的热扩散层 非磁性有机材料和磁性层。

公开(公告)号：US20140153375A1

公开(公告)日：2014-06-05

申请号：US14175267

申请日：2014-02-07

Applicant: FUJIFILM Corporation

Inventor： Akiko HENMI ,  Tatsuo MIKAMI ,  Hidehiro MOCHIZUKI ,  Toshio SASAKI

IPC: G11B7/24027 ,  G11B7/24024

CPC classification number: G11B7/24027 ,  G11B7/00452 ,  G11B7/24024 ,  G11B7/245 ,  G11B7/246 ,  G11B7/256 ,  G11B7/26 ,  G11B2007/0013 ,  G11B2007/00457 ,  Y10T428/24942 ,  Y10T428/24967 ,  Y10T428/31938

Abstract: An optical information recording medium comprises recording layers which include a polymer binder and a dye dispersed in the polymer binder or include a polymer to which a dye is bonded, and each recording layer has a refractive index unchangeable under irradiation with a recording beam, with first and second interfaces being defined between the recording layer and two intermediate layers adjacent thereto. Irradiation of a region of the recording layer adjacent to the first interface or a region of the recording layer adjacent to the second interface with the recording beam causes the dye to absorb the recording beam and generate heat which in turn deforms the polymer in the recording layer, forming a protrusive shape protruding into an intermediate layer at the first or second interface whereby information is recordable in separate information layers at both of the first and the second interfaces.

Abstract translation: 光学信息记录介质包括记录层，其包括分散在聚合物粘合剂中的聚合物粘合剂和染料，或包括与染料结合的聚合物，并且每个记录层具有在与记录光束照射下不变的折射率， 并且在记录层和与其相邻的两个中间层之间限定第二界面。 与第一界面相邻的记录层的区域或与记录光束相邻的与第二界面相邻的记录层的区域的照射使得染料吸收记录光束并产生热量，其又使记录层中的聚合物变形 在所述第一或第二界面处形成突出到中间层的突出形状，从而在所述第一和第二界面的两个信息层中可以记录信息。

公开(公告)号：US20140029403A1

公开(公告)日：2014-01-30

申请号：US14040252

申请日：2013-09-27

Applicant: FUJIFILM CORPORATION

Inventor： Hidehiro MOCHIZUKI ,  Toshio SASAKI ,  Masaharu AKIBA

IPC: G11B7/246

CPC classification number: G11B7/246 ,  G11B7/00452 ,  G11B7/24038 ,  G11B7/245 ,  G11B2007/00457

Abstract: An optical information recording medium 10 comprises a plurality of recording layers 14, and intermediate layers 15 each provided between the recording layers 14. Each of the recording layers 14 includes polymer binder and dye dispersed in the polymer binder, and the dye is subject to multi-photon absorption of a recording beam RB having a predetermined wavelength and to linear absorption not smaller than 1.5% per recording layer at the predetermined wavelength of the recording beam. When the dye is irradiated with the recording beam and generates heat by linear absorption and multi-photon absorption of the recoding beam RB, the polymer binder undergoes a change of shape by the generated heat, whereby an interface between the recording layer 14 and the intermediate layer undergoes a change of shape to record information.

Abstract translation: 光学信息记录介质10包括多个记录层14和各自设置在记录层14之间的中间层15.每个记录层14包括分散在聚合物粘合剂中的聚合物粘合剂和染料，并且染料经受多重 具有预定波长的记录光束RB的光吸收和在记录光束的预定波长处的每个记录层的线性吸收不小于1.5％。 当用记录光束照射染料并通过记录光束RB的线性吸收和多光子吸收产生热量时，聚合物粘合剂通过产生的热而经历形状变化，由此记录层14和中间体 层经历形状变化以记录信息。

公开(公告)号：US20210325646A1

公开(公告)日：2021-10-21

申请号：US17355212

申请日：2021-06-23

Applicant: FUJIFILM Corporation

Inventor： Kenji ITO ,  Toshio SASAKI ,  Masayasu KONISHI ,  Michio CHO

IPC: G02B15/167 ,  G02B3/02 ,  G02B13/18 ,  G02B15/15

Abstract: A lens 1 has unevenness within an optical effective diameter D of an optical surface 2, an arithmetic mean roughness Ra within the optical effective diameter D of the optical surface 2 is 20 nm or more and 50 nm or less, and an average value of widths W of protrusion portions 3 of the unevenness on an average line C2 of a roughness curve C1 of the optical surface 2 is 1/200 or more and 1/50 or less of the optical effective diameter D of the optical surface 2. The lens 1 is suitably used as a lens that composes a zoom lens or an imaging lens.

公开(公告)号：US20150262607A1

公开(公告)日：2015-09-17

申请号：US14670066

申请日：2015-03-26

Applicant: FUJIFILM Corporation

Inventor： Hidehiro MOCHIZUKI ,  Toshio SASAKI ,  Tetsuya WATANABE ,  Tatsuo MIKAMI

IPC: G11B7/24035 ,  G11B7/26

CPC classification number: G11B7/24035 ,  G11B7/24038 ,  G11B7/245 ,  G11B7/246 ,  G11B7/256 ,  G11B7/26

Abstract: The object of the invention is to provide an optical information recording medium which excels in stability e.g., for preserving the properties during a long-term storage and which enables recording using a laser having a small peak power, and a method for manufacturing such an optical information recording medium. An optical information recording medium 10 includes a recording layer 14, and intermediate layers (adhesive agent layer 15A and recording layer support layer 15B) adjacent to the recording layer 14, and the recording layer 14 includes a recording material comprising a one-photon absorption dye bound to a polymer binder (polymer compound).

Abstract translation: 本发明的目的是提供一种光稳定性优良的光学信息记录介质，例如用于在长期存储期间保持特性，并且能够使用具有小峰值功率的激光进​​行记录，以及用于制造这种光学 信息记录介质。 光学信息记录介质10包括记录层14和与记录层14相邻的中间层（粘合剂层15A和记录层支撑层15B），并且记录层14包括包含单光子吸收染料 与聚合物粘合剂（高分子化合物）结合。

公开(公告)号：US20140078878A1

公开(公告)日：2014-03-20

申请号：US14078980

申请日：2013-11-13

Applicant: FUJIFILM CORPORATION

Inventor： Hiroaki TSUYAMA ,  Masaomi MAKINO ,  Hidehiro MOCHIZUKI ,  Toshio SASAKI ,  Tatsuo MIKAMI

IPC: G11B7/245 ,  C07C69/76 ,  G02B1/04

CPC classification number: G11B7/245 ,  B82Y10/00 ,  C07C69/76 ,  G02B1/04 ,  G11B7/24044 ,  G11B7/2405 ,  G11B2007/00457

Abstract: The present invention provides a non-resonant two-photon absorption recording material containing a non-resonant polymer two-photon absorption compound, and the non-resonant two-photon absorption recording material wherein the main chain of the non-resonant polymer two-photon absorption compound contains at least one member selected from polystyrene, polyacrylate, polymethacrylate, polyester, polyurethane, polyether and polyimide, and also provides an optical information recording medium having a recording layer containing the recording material.

Abstract translation: 本发明提供了包含非共振聚合物双光子吸收化合物的非共振双光子吸收记录材料和非共振双光子吸收记录材料，其中非共振聚合物双光子的主链 吸收化合物含有选自聚苯乙烯，聚丙烯酸酯，聚甲基丙烯酸酯，聚酯，聚氨酯，聚醚和聚酰亚胺中的至少一种，并且还提供了具有含有记录材料的记录层的光学信息记录介质。

公开(公告)号：US20140064053A1

公开(公告)日：2014-03-06

申请号：US14076635

申请日：2013-11-11

Applicant: FUJIFILM Corporation

Inventor： Hiroaki TSUYAMA ,  Masaharu AKIBA ,  Hidehiro MOCHIZUKI ,  Toshio SASAKI ,  Tatsuo MIKAMI

IPC: G11B7/244

CPC classification number: G11B7/244 ,  B82Y10/00 ,  C07C69/33 ,  C07C255/56 ,  G02F1/361 ,  G02F1/3611 ,  G11B7/24038 ,  G11B7/2405 ,  G11B7/246 ,  G11B2007/24624 ,  Y10T428/13

Abstract: A two-photon absorption material that can, thanks to a compound of, for example, the following formula (6), perform non-resonant two-photon absorption by light in the region shorter than 700 nm with high sensitivity and has sufficient recording/reproduction properties, a two-photon absorption recording material, a recording medium and a two-photon absorption compound usable therein are provided.

Abstract translation: 由于具有下列通式（6）的化合物，双光子吸收材料可以在低于700nm的区域中以高灵敏度的光进行非共振双光子吸收，并具有足够的记录/ 再现性质，双光子吸收记录材料，记录介质和可用于其中的双光子吸收化合物。

公开(公告)号：US20130121123A1

公开(公告)日：2013-05-16

申请号：US13713888

申请日：2012-12-13

Applicant: Fujifilm Corporation

Inventor： Toshio SASAKI ,  Hidehiro MOCHIZUKI ,  Toshiyuki KITAHARA

IPC: G11B7/09

CPC classification number: G11B7/0932 ,  B82Y10/00 ,  G11B7/00455 ,  G11B2007/0013 ,  G11B2007/00457

Abstract: Recording and reading method for optical information recording medium comprising: recording layer having thickness not less than 2λ/n, where λ is wavelength of recording beam and n is refractive index of the recording layer, and configured to undergo a change in the refractive index by irradiation with the recording beam; and adjacent layer adjacent to the recording layer at a side opposite to an incident side, comprises the steps of: recording a recording spot by irradiating with the recording beam, while shifting focal position by offset amount d, which satisfies ω0d3ω0, where ω0 is radius of the recording spot, from interface between recording layer and adjacent layer toward the incident side at a time of recording, whereby the refractive index of recording layer changes at a recording position to record recording spot; and reading out the information by irradiating with reading beam, while bringing it into focus on the interface.

Abstract translation: 用于光信息记录介质的记录和读取方法，包括：具有不小于2λ/ n的厚度的记录层，其中λ是记录光束的波长，n是记录层的折射率，并且被配置为经历折射率的变化 用记录光束照射; 以及在与入射侧相对的一侧与记录层相邻的相邻层包括以下步骤：通过照射记录光束来记录记录点，同时将焦点位置移动偏移量d，该偏移量d满足omega0d3omega0，其中ω=半径 在记录时从记录层和相邻层之间的界面向入射侧记录记录点，由此记录层的折射率在记录位置改变以记录记录点; 并通过用读取光束照射来读出信息，同时将其重点放在界面上。