公开(公告)号：US4788097A

公开(公告)日：1988-11-29

申请号：US13814

申请日：1987-02-12

申请人： Shinichiro Ohara ,  Masao Yabe ,  Younosuke Takahashi

发明人： Shinichiro Ohara ,  Masao Yabe ,  Younosuke Takahashi

IPC分类号： G11B7/243 ,  G11B7/253 ,  G11B7/2534 ,  G11B7/257 ,  G11B7/2575 ,  G01D15/14 ,  B32B3/00

CPC分类号： G11B7/243 ,  G11B7/257 ,  G11B2007/24306 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/2432 ,  G11B2007/24324 ,  G11B2007/24326 ,  G11B7/2534 ,  G11B7/2575 ,  Y10S430/146 ,  Y10T428/24851

摘要： An information recording medium including a substrate, an optional intermediate layer arranged on the substrate, and a recording layer arranged on the intermediate layer on the substrate, the recording layer including a low melting metal selected from the group consisting of In, Te, Sn, Pb and Bi and a metal compound selected from a metal sulfide, a metal fluoride and a metal oxide. The recording layer further contains a metal having a high surface tension of not less than 600 dyne/cm within temperatures from its melting point to a temperature higher than the melting point by 300.degree. C., the concentrations of the metal varying along the depth direction of the recording layer in such manner that the concentration of the metal on the side facing the substrate is higher than that of the metal on the opposite side where the metal on the side facing the substrate may be in the form of islands. The intermediate layer includes a compound selected from the group consisting of a chlorinated polyolefin, a polymer material having a thermal decomposition temperature of not higher than 300.degree. C., and an organic compound having a surface energy of not higher than 40 dyne/cm.sup. 2.

摘要翻译： 一种信息记录介质，包括基板，布置在基板上的可选中间层以及布置在基板上的中间层上的记录层，该记录层包括选自In，Te，Sn， Pb和Bi以及选自金属硫化物，金属氟化物和金属氧化物的金属化合物。 记录层还包含在其熔点至高于300℃的温度的温度下具有不低于600达因/厘米的高表面张力的金属，金属沿着深度方向变化的浓度 记录层的面向衬底的一侧的金属的浓度高于在衬底侧面上的金属可以是岛状的相反侧的金属的浓度。 中间层包括选自氯化聚烯烃，热分解温度不高于300℃的聚合物材料和表面能不高于40达因/ cm 2的有机化合物的化合物 。

公开(公告)号：US4731620A

公开(公告)日：1988-03-15

申请号：US13900

申请日：1987-02-12

申请人： Masao Yabe ,  Younosuke Takahashi

发明人： Masao Yabe ,  Younosuke Takahashi

IPC分类号： B41M5/26 ,  G11B7/24 ,  G11B7/257 ,  G01D15/34

CPC分类号： G11B7/2575 ,  G11B7/24015 ,  G11B7/24024 ,  G11B7/256 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24324 ,  G11B7/252 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/2534

摘要： Improvement in an information recording medium comprising two disc-shaped substrates, said two substrates being combined with each other directly or via ring-shaped spacers by an adhesive, and a recording layer for writing or reading information with laser beam which is provided on the inner surface of at least one substrate, wherein a layer of chlorinated polyolefin is provided between the substrate and the recording layer and further on the area where the substrate is combined with another substrate or the spacers, and said adhesive is a UV-curable epoxy adhesive which is arranged on the chlorinated polyolefin layer, optionally, via a primer layer.

摘要翻译： 包括两个盘形基板的信息记录介质的改进，所述两个基板通过粘合剂直接或通过环形间隔件彼此组合，以及用于通过激光束写入或读取信息的记录层，其设置在内部 至少一个基材的表面，其中在基材和记录层之间以及在基材与另一基材或间隔物组合的区域上还提供氯化聚烯烃层，并且所述粘合剂是可UV固化的环氧粘合剂，其中 布置在氯化聚烯烃层上，任选地经由底漆层。

公开(公告)号：US4883741A

公开(公告)日：1989-11-28

申请号：US90549

申请日：1987-08-28

申请人： Younosuke Takahashi ,  Takayuki Kuriyama

发明人： Younosuke Takahashi ,  Takayuki Kuriyama

IPC分类号： B41M5/26 ,  G03C1/735 ,  G11B7/24 ,  G11B7/244

CPC分类号： B41M5/26 ,  Y10S430/146

摘要： A novel information recording medium comprising a substrate and a recording layer for writing information by means of laser beam which is provided on the substrate is disclosed. The recording layer contains an organic metal complex compound and a sensitizing agent for laser beam. Alternatively, the recording layer contains an organic metal complex compound and this recording layer is arranged in contact with a layer of a sensitizing agent for laser beam.

摘要翻译： 公开了一种新颖的信息记录介质，其包括基板和用于通过设置在基板上的激光束来写入信息的记录层。 记录层含有有机金属络合物和激光光敏剂。 或者，记录层含有有机金属络合物，该记录层与激光束用敏化剂层接触。

公开(公告)号：US5060222A

公开(公告)日：1991-10-22

申请号：US338043

申请日：1989-04-14

申请人： Mitsuru Sawano ,  Toshiaki Igata ,  Younosuke Takahashi

发明人： Mitsuru Sawano ,  Toshiaki Igata ,  Younosuke Takahashi

IPC分类号： G11B7/0055

CPC分类号： G11B7/00557

摘要： A method of optically writing an information over an information recorded on a recording material which is reversively convertible between a stable phase and a metastable phase to show different light reflection or transmission by controlling a heating condition to be applied to the recording material wherein the recorded information is recorded in the form of a plurality of separated metastable-phase areas on a stable-phase area is disclosed. One method comprises two steps of erasing the recorded information by intermittently irradiating the plurality of metastable areas with a laser beam which gives such a high thermal energy to the recording material at least at its central area of a beam spot formed on the recording material as to be able to convert the metastable phase into the stable phase under the condition that the central area of one beam spot is formed on the recording material in an area overlaping with an area of a central high thermal energy area of a laser beam spot having been formed by the preceding irradiation to convert a metastable phase into a stable phase and then recording another information in the recording material by irradiating the recording material with a laser beam to form a plurality of separated metastable-phase areas. Another method comprises a single process for erasing a recorded information, at a desired moment in the course of which a fresh information is recorded by prolonging interval between two laser beam irradiations.