Optical information recording medium and manufacturing method
    82.
    发明授权
    Optical information recording medium and manufacturing method 有权
    光信息记录介质及制造方法

    公开(公告)号:US6143469A

    公开(公告)日:2000-11-07

    申请号:US282999

    申请日:1999-03-31

    摘要: A method for manufacturing an optical information recording medium having an excellent mechanical strength, thermal stability, and improved overwrite cycle property can be provided by forming the dielectric layer by using a mixed target comprising ZnS and SiO.sub.2 in an atmosphere comprising rare gas and at least oxygen at the side where the dielectric layer does not contact to the recording layer. The optical information recording medium is manufactured by using the substrate, the recording layer comprising a material that varies reversibly between the optically identifiable states by an irradiation of a laser beam, and the dielectric layer at least one side of which has a two-layered structure at the upper and lower sides of the recording layer. At least one of the dielectric layers that does not contact to the recording layer is formed by using a mixed target comprising ZnS and SiO.sub.2 in a mixed atmosphere comprising rare gas and oxygen.

    摘要翻译: 可以通过在包含稀有气体和至少氧气的气氛中使用包含ZnS和SiO 2的混合靶来形成介电层来提供具有优异的机械强度,热稳定性和改进的重写循环性能的光学信息记录介质的制造方法 在电介质层不与记录层接触的一侧。 光学信息记录介质是通过使用基板来制造的,该记录层包括通过激光束的照射在光学可识别状态之间可逆地变化的材料,以及至少一侧具有两层结构的介电层 在记录层的上侧和下侧。 通过在包含稀有气体和氧气的混合气氛中使用包含ZnS和SiO 2的混合靶,形成不与记录层接触的介电层中的至少一个。

    Optical information recording medium
    85.
    发明授权
    Optical information recording medium 失效
    光信息记录介质

    公开(公告)号:US5527661A

    公开(公告)日:1996-06-18

    申请号:US512131

    申请日:1995-08-07

    IPC分类号: G11B7/005 G11B7/24 G11B7/243

    摘要: An optical recording medium according to the present invention includes a substrate, and a recording film formed on the substrate, when receiving a laser beam for recording, the recording film taking either a first structural state or a second structural state according to the intensity of the laser beam; when receiving a laser beam for reproducing, the recording film partially changing the optical phase of the laser beam for reproducing according to the structural state, thereby changing the intensity of the laser beam for reproducing, wherein the optical absorbance of the recording film in the first structural state is substantially equal to that of the recording film in the second structural state, and the refractive index of the recording film in the first structural state is substantially different from that of the recording film in the second structural state.

    摘要翻译: 根据本发明的光记录介质包括基板和形成在基板上的记录膜,当接收用于记录的激光束时,根据记录膜的强度采用第一结构状态或第二结构状态的记录膜 激光束; 当接收到用于再现的激光束时,记录膜根据结构状态部分地改变用于再现的激光束的光学相位,由此改变用于再现的激光束的强度,其中记录膜在第一 结构状态基本上等于第二结构状态下的记录膜的结构状态,并且在第一结构状态下的记录膜的折射率与第二结构状态下的记录膜的折射率基本不同。

    Optical information recording medium having protection layers with
different properties on both sides of an optical active layer
    86.
    发明授权
    Optical information recording medium having protection layers with different properties on both sides of an optical active layer 失效
    光学信息记录介质具有在光学有源层两侧具有不同特性的保护层

    公开(公告)号:US5453346A

    公开(公告)日:1995-09-26

    申请号:US219109

    申请日:1994-03-29

    摘要: In a phase change optical disk wherein a first heat-resistant protection layer, an optical active layer showing a reversible phase change between a crystal state and an amorphous state, and a second heat-resistant protection layer are laminated on a substrate in this order, both of the first and the second heat-resistant protection layers are made of a mixture of a chalcogenide and a vitrification accelerating material. Further, a mixture ratio of the vitrification accelerating material in the second heat-resistant protection layer is larger than that in the first heat-resistant protection layer. Thereby, it becomes possible that the first heat-resistant protection layer has the mixing ratio which gives the refractive index value bringing suitable optical properties, while the second heat-resistant protection layer has the different mixing ratio which gives the thermal conductivity bringing suitable thermal properties. As a result, a phase change optical disk having high sensitivity, improved life characteristics in repeated record/erasure operations and wide production margin is provided.

    摘要翻译: 在其中依次层叠有第一耐热保护层,在晶体状态和非晶状态之间呈现可逆相变的光学有源层和第二耐热保护层的相变光盘中, 第一和第二耐热保护层都由硫族化物和玻璃化促进材料的混合物制成。 此外,第二耐热保护层中的玻璃化促进材料的混合比大于第一耐热保护层的混合比。 由此,可以使第一耐热保护层具有赋予具有合适的光学特性的折射率值的混合比,而第二耐热保护层具有不同的混合比,其赋予导热性良好的热性能 。 结果,提供了具有高灵敏度,反复记录/擦除操作中的改善的寿命特性和广泛的生产裕度的相变光盘。

    Benzamide platelet activating factor antagonists
    87.
    发明授权
    Benzamide platelet activating factor antagonists 失效
    苯甲酰胺血小板激活因子拮抗剂

    公开(公告)号:US5401756A

    公开(公告)日:1995-03-28

    申请号:US190609

    申请日:1994-02-02

    摘要: Benzamide platelet activating factor antagonists of the following formula (I): ##STR1## wherein ##STR2## B, D: hydrogen atom, etc. E: pyridyl group, etc.n: integer from 0 to 2R.sup.2 : R.sup.3 R.sup.4 N-- etc.(R.sup.3, R.sup.4 : optionally substituted C.sub.6 -C.sub.12 aryl group, etc.) ##STR3## optical antipodes thereof or pharmaceutically acceptable salts thereof, show excellent PAF antagonism and are effective for therapy and prophylaxis of diseases caused by PAF (bronchial asthma, nephritis, shocks, cardiac infarction, cerebral hemorrhage, ulcer, DIC, autoimmune diseases, thrombosis, etc.).

    摘要翻译: 下列通式(I)的苯甲酰胺血小板活化因子拮抗剂:其中B,D:氢原子等。E:吡啶基等n:0-2的整数R2:R3R4N- 等等(R3,R4:任选取代的C 6 -C 12芳基等)NCH,CHCH或CH 2 CH 2; 其光学对映体或其药学上可接受的盐显示出优异的PAF拮抗作用,并且有效治疗和预防由PAF引起的疾病(支气管哮喘,肾炎,休克,心肌梗塞,脑出血,溃疡,DIC,自身免疫性疾病,血栓形成等) )。

    Optical disc recording-reproducing apparatus for determining the last
recorded sensor
    89.
    发明授权
    Optical disc recording-reproducing apparatus for determining the last recorded sensor 失效
    用于确定最后记录的传感器的光盘记录再现装置

    公开(公告)号:US5153866A

    公开(公告)日:1992-10-06

    申请号:US649952

    申请日:1991-02-04

    摘要: The method of determining the last sector containing recorded information or the last recorded sector, of a writer-once and read-many optical disc, comprises dividing tracks of a write-once and read-many optical disc into a plurality of sectors, where each sector has a data part for recording data and a sector ID part in which ID information for identifying the sector is recorded in advance. The ID information of a sector is attached to the data part of the sector and is recorded in the data part of the sector. The ID information reproduced from the data part of the sector is then compared with the ID information reproduced from the sector ID part of the sector, and when the ID information from the ID part and the data part coincide, the sector is determined to be the last recorded sector.

    摘要翻译: 确定包含记录的一次和多次读取的光盘的记录信息或最后记录的扇区的最后扇区的方法包括将一次写入和读取多个光盘的磁道划分成多个扇区,其中每个扇区 扇区具有用于记录数据的数据部分和扇区ID部分,其中用于识别扇区的ID信息被预先记录。 扇区的ID信息附加到扇区的数据部分,并被记录在扇区的数据部分中。 然后将从扇区的数据部分再现的ID信息与从扇区的扇区ID部分再现的ID信息进行比较,并且当来自ID部分和数据部分的ID信息一致时,扇区被确定为 最后记录部门。

    Optical information recording and erasing method using two laser beams
on a phase change optical recording medium
    90.
    发明授权
    Optical information recording and erasing method using two laser beams on a phase change optical recording medium 失效
    在相变光记录介质上使用两个激光束的光信息记录和擦除方法

    公开(公告)号:US4980879A

    公开(公告)日:1990-12-25

    申请号:US272253

    申请日:1988-11-17

    IPC分类号: G11B7/0055 G11B7/006

    CPC分类号: G11B7/006 G11B7/00557

    摘要: A method for performing a high quality recording of information signals on an optical disk utilizes reversible structural changes between crystalline and amorphous states of a chalcogenide glass film or the like and two circular or nearly circular laser spots closely arranged along a recording track of optical disk. The preceding spot, which emits a continuous mode or high-frequency mode by far exceeding the recording frequency, operates cancel the past history in the irradiated portion by melting the recording film. The succeeding spot, which is modulated between the power levels for amorphizing and crystallizing according to the recorded information, operates to record new information signals on the track just after erased by the preceding laser spot.