Recording medium and information recording and reproducing method using the same

    公开(公告)号:US07058001B2

    公开(公告)日:2006-06-06

    申请号:US09793721

    申请日:2001-02-27

    IPC分类号: G11B7/24

    摘要: A recording medium comprises a substrate and a recording layer overlaid on the substrate. The recording layer comprises a material, which has properties such that, when recording light having a predetermined wavelength λ1 is irradiated to the material, the material is capable of being caused to change into a fluorescent material and such that, when excitation light having a wavelength λ2 is then irradiated to the thus formed fluorescent material, the fluorescent material is capable of being caused to produce fluorescence. The wavelength λ1 of the recording light and the wavelength λ2 of the excitation light may be identical or different. The substrate may be constituted of a material having properties such that, when the excitation light is irradiated to the material, the material does not produce fluorescence having a wavelength identical with the wavelength of the fluorescence produced by the fluorescent material.

    Method for working groove
    63.
    发明授权
    Method for working groove 失效
    工作槽方法

    公开(公告)号:US6041641A

    公开(公告)日:2000-03-28

    申请号:US126065

    申请日:1998-07-30

    IPC分类号: B21J5/12 B21K21/12

    CPC分类号: B21K21/12

    摘要: A method for forming a groove by plastic deformation to provide improved working efficiency. A hole 4 having a diameter larger than a width W of a desired groove 6 and a depth deeper than the desired depth of the groove 6 is formed in an end face 2 of a rod 1. Subsequently, the groove 6 is formed by plastic deformation to partially overlap the hole 4. The plastic working to form the groove may be carried without the use of a die.

    摘要翻译: 一种通过塑性变形形成槽的方法,以提高工作效率。 在杆1的端面2上形成有直径大于期望槽6的宽度W并且比槽6的期望深度更深的深度的孔4.随后,槽6由塑性变形 以部分地重叠孔4.可以在不使用模具的情况下承载用于形成凹槽的塑料。

    Stilbene derivative and method for producing the same
    65.
    发明授权
    Stilbene derivative and method for producing the same 失效
    二苯乙烯衍生物及其制备方法

    公开(公告)号:US6022998A

    公开(公告)日:2000-02-08

    申请号:US118834

    申请日:1998-07-20

    摘要: The present invention provides a novel stilbene derivative represented by the general formula (1): ##STR1## wherein R.sup.1 and R.sup.3 represent an alkyl group, an aryl group, an aralkyl group or an alkoxy group which are optionally substituted; and R.sup.2 and R.sup.4 represent a hydrogen atom, an alkyl group or an alkoxy group which are optionally substituted, provided that when the substitution position of R.sup.2 and R.sup.4 is the 4-(para) position, R.sup.2 and R.sup.4 are hydrogen atoms, a method for producing the same and use thereof. The above stilbene derivative (1) is useful as an electric charge transferring material, particularly hole transferring material.

    摘要翻译: 本发明提供由通式(1)表示的新型1,2-二苯乙烯衍生物:其中R 1和R 3表示任选被取代的烷基,芳基,芳烷基或烷氧基; 并且R 2和R 4表示任选被取代的氢原子,烷基或烷氧基,条件是当R 2和R 4的取代位置为4-(对位)位置时,R 2和R 4为氢原子, 生产和使用它们。 上述1,2-二苯乙烯衍生物(1)可用作电荷转移材料,特别是空穴转移材料。

    Process for producing low-carbon chromium-containing steel
    67.
    发明授权
    Process for producing low-carbon chromium-containing steel 失效
    低碳含铬钢生产工艺

    公开(公告)号:US5547489A

    公开(公告)日:1996-08-20

    申请号:US445947

    申请日:1995-05-22

    CPC分类号: C21C5/30 C21C7/0685 C21C7/10

    摘要: In the production of stainless steel it is aimed at to depress the highest temperature reaching during refining the molten steel with keeping the necessary tapping temperature so as to prolong the life of refractory materials of the refining furnace. After carrying out decarburization treatment under atmospheric pressure in a refining furnace by blowing an oxygen-containing gas into molten steel, further decarburization of the molten steel and reduction of chromium oxides is carried out under stirring by blowing a non-oxidizing gas under a reduced pressure, and then, reducing agent is charged into the furnace to reduce chromium oxides under keeping the reduced pressure. At the above atmospheric pressure operation total quantity of the oxygen gas blown is smaller than in a conventional process, while at the final stage of the reduced pressure operation an oxygen-containing gas is blown again in the quantity which is equivalent to the balance of the quantity of oxygen gas usually blown in the conventional process and the quantity of oxygen gas blown at the above atmospheric pressure operation so as to cause heat generation by oxidation reaction of chromium thereby increasing molten steel temperature to a necessary temperature with anticipation of subsequent temperature decrease.

    摘要翻译: 在不锈钢的生产中,旨在降低在精炼钢水期间达到的最高温度,同时保持必要的出钢温度,以延长精炼炉耐火材料的使用寿命。 在精炼炉中通过将含氧气体吹入钢水中进行大气压下的脱碳处理后,通过在减压下吹入非氧化性气体,在搅拌下进一步对钢水进行脱碳,还原铬氧化物 ,然后将还原剂装入炉中以在保持减压的同时还原氧化铬。 在上述大气压力运行中,吹入的氧气的总量比常规方法小,而在减压运行的最后阶段,含氧气体再次以等于 通常在常规方法中吹入的氧气量和在上述大气压力下吹入的氧气量操作,从而通过铬的氧化反应产生热量,从而将钢水温度升高到必要温度,并预期随后的温度降低。

    Methine compounds and silver halide photographic materials containing
the compound
    69.
    发明授权
    Methine compounds and silver halide photographic materials containing the compound 失效
    含有化合物的甲基化合物和卤化银照相材料

    公开(公告)号:US5464734A

    公开(公告)日:1995-11-07

    申请号:US257051

    申请日:1994-06-08

    摘要: Disclosed is a silver halide photographic material containing a compound of formula (1) or (2): ##STR1## where DYE represents a methine dye residue; G and G.sup.- each represent a substituent for the methine dye residue, and are represented by formulae (3) and (4), respectively; and n represents an integer of from 1 to 6.--T.sup.1 --G.sup.1 NHG.sup.2 (3)--T.sup.1 --G.sup.1 N.sup.- G.sup.2 (4)where T.sup.1 represents a divalent linking group; G.sup.1 represents a carbonyl group, a sulfinyl group, or a sulfonyl group; G.sup.2 represents --CO--T.sup.2 --, --SO--T.sup.2, --SO.sub.2 --T.sup.2, or a cyano group; and T.sup.2 represents a monovalent group. The spectral sensitivity of the material is high, and the material has few residual color after processed.

    摘要翻译: 公开了含有式(1)或(2)化合物的卤化银照相材料:(DYE)(G)n(1)(DYE)(G-)n(2)其中DYE表示次甲基染料残基; G和G-分别表示次甲基染料残基的取代基,分别由式(3)和(4)表示。 -T1-G1NHG2(3)-T1-G1N-G2(4)其中T1表示二价连接基团; n表示1至6的整数。 G1表示羰基,亚磺酰基或磺酰基; G2表示-CO-T2-,-SO-T2,-SO2-T2或氰基; 而T2代表一价基团。 材料的光谱灵敏度高,处理后材料残留色差少。

    Heat-developable color light-sensitive material
    70.
    发明授权
    Heat-developable color light-sensitive material 失效
    可热显色的感光材料

    公开(公告)号:US5427901A

    公开(公告)日:1995-06-27

    申请号:US176695

    申请日:1994-01-03

    IPC分类号: G03C1/498 G03C1/00

    摘要: A heat-developable color light-sensitive material comprising a support having thereon at least three silver halide emulsion layers each sensitive to a different spectral wavelength region, one silver halide emulsion layer or a light-insensitive layer adjacent thereto containing a yellow dye-providing compound, a second silver halide emulsion layer or a light-insensitive layer adjacent thereto containing a magenta dye-providing compound and a third silver halide emulsion layer or a light-insensitive layer adjacent thereto containing a cyan dye-providing compound; at least one of said silver halide emulsion layers having a maximum spectral sensitivity at a wavelength of at least 700 nm and a spectral sensitivity at a wavelength 20 nm longer than said maximum spectral sensitivity wavelength of at most 1/10 of said maximum spectral sensitivity.A heat-developable color light-sensitive material with such spectral sensitivity characteristics in at least one silver halide emulsion layer provides superior color separation from other layers having a sensitivity in the infrared region.

    摘要翻译: 一种可热显色的感光材料,其包括其上具有至少三个对不同光谱波长区域敏感的卤化银乳剂层的支持体,一个卤化银乳剂层或与其相邻的不透光层,其含有提供黄色染料的化合物 第二卤化银乳剂层或与其相邻的第二卤化银乳剂层或不透光层,其含有品红色染料提供化合物和第三卤化银乳剂层或与其相邻的不透光层,其含有提供青色染料的化合物; 所述卤化银乳剂层中的至少一种在至少700nm的波长下具有最大光谱灵敏度,并且比所述最大光谱灵敏度的至多1/10的所述最大光谱灵敏度波长长20nm的光谱灵敏度。 在至少一个卤化银乳剂层中具有这种光谱灵敏度特性的可热显色的感光材料提供了与在红外区具有灵敏度的其它层的优异的颜色分离。