Nuclear magnetic resonance imaging with patient protection against nerve
stimulation and image quality protection against artifacts
    91.
    发明授权
    Nuclear magnetic resonance imaging with patient protection against nerve stimulation and image quality protection against artifacts 失效
    核磁共振成像与患者保护免受神经刺激和图像质量保护的伪像

    公开(公告)号:US5497773A

    公开(公告)日:1996-03-12

    申请号:US212145

    申请日:1994-03-14

    摘要: A nuclear magnetic resonance imaging scheme capable of reducing the eddy currents induced within the living body outside of the imaging region, so as to protect the patient against the nerve stimulation due to the eddy currents, and obtaining the MR images at high image quality by protecting the image quality against the N/2 and chemical artifacts. The nerve stimulation is prevented by providing a shield member for shielding a nerve stimulation sensitive portion of the patient located outside of the imaging region from a change of the gradient magnetic fields. The artifacts are prevented by applying a reading gradient magnetic field which is repeatedly switching its polarity along a phase encoding gradient magnetic field applied at a rate of once in every two switchings of the reading gradient magnetic field, separating the acquired NMR signals resulting from odd and even turns of switchings of the reading gradient magnetic field as separate data sets, and re-constructing MR images from the separate data set for odd turns and even turns separately.

    摘要翻译: 一种核磁共振成像方案,其能够降低在成像区域外的生物体内感应的涡流,以保护患者免受由于涡流引起的神经刺激,并通过保护获得高图像质量的MR图像 图像质量相对于N / 2和化学文物。 通过设置用于屏蔽来自位于成像区域外的患者的神经刺激敏感部分的屏蔽构件,防止神经刺激与梯度磁场的变化。 通过施加读取梯度磁场来防止伪影,该读取梯度磁场沿着读取梯度磁场的每两次切换中的一次的速率施加的相位编码梯度磁场重复地切换其极性,分离由奇数和 将读取梯度磁场的切换的偶数圈作为单独的数据集,并且从单独的数据集重新构造用于奇数匝和偶数匝的MR图像。

    Dye forming couplers and silver halide color photosensitive material
containing the same
    92.
    发明授权
    Dye forming couplers and silver halide color photosensitive material containing the same 失效
    染料形成成色剂和含有卤化银色光敏材料

    公开(公告)号:US5326681A

    公开(公告)日:1994-07-05

    申请号:US14419

    申请日:1993-02-05

    IPC分类号: C07D487/04 G03C7/38

    摘要: A silver halide color photosensitive material which forms a cyan dye that has superior heat resistance and that will not readily fade in a reducing atmosphere. The silver halide color photosensitive material contains in at least one layer on a support at least one coupler represented by formula (I): ##STR1##wherein R.sup.1 represents hydrogen atom or a substituent; R.sup.2 represents a substituent; X represents hydrogen atom or a group releasable on a coupling reaction with an oxidation product of a color developing agent; Z.sup.1 represents a nonmetallic atom group necessary for forming a nitrogen-containing, six-membered, heterocyclic ring which has at least one dissociative group: Z.sup.1 cannot be --C(.dbd.O)--N(R)-- C(.dbd.O)--NH--; and R represents a substituent.Also disclosed is a novel dye forming coupler which exhibits a high coupling activity and which gives a dye having a large molar extinction coefficient and superior stability, the coupler being represented by the following formula (XX) or (XXI). Also disclosed is a silver halide color photosensitive material which contains at least one of the dye forming couplers of formulae (XX) and (XXI) and which provides sharp dye images with high fastness properties. ##STR2## wherein EWG represents an electron withdrawing group having a Hammett's .sigma..sub.p value of not less than 0.3; R.sub.1 and R.sub.2 each represent a substituent; and X represents hydrogen atom or a group releasable on a coupling reaction with an oxidation product of an aromatic primary amine developing agent.

    摘要翻译: 一种卤化银色感光材料,其形成具有优异耐热性且不易在还原气氛中褪色的青色染料。 卤化银色感光材料在载体上至少一层中含有至少一个由式(I)表示的成色剂:汤姆或取代基; R2表示取代基; X表示氢原子或可与显色剂的氧化产物偶联反应脱离的基团; Z1表示形成具有至少一个解离基团的含氮六元杂环所必需的非金属原子团:Z1不能为-C(= O)-N(R)-C(= O)-NH - ; R表示取代基。 还公开了一种新型的染料形成成色剂,其显示出高的偶联活性,并且得到具有大的摩尔吸光系数和优异的稳定性的染料,所述成色剂由下式(XX)或(XXI)表示。 还公开了含有式(XX)和(XXI)的染料形成成色剂中的至少一种的卤化银色感光材料,并提供具有高坚牢度性质的清晰的染料图像。 (XXI)(XXI)其中EWG表示哈米特σp值不小于0.3的吸电子基团; R1和R2各自表示取代基; X表示氢原子或可与芳族伯胺显影剂的氧化产物偶联反应脱离的基团。

    Cyan image forming method and silver halide color photographic material
containing cyan coupler
    93.
    发明授权
    Cyan image forming method and silver halide color photographic material containing cyan coupler 失效
    青色成像方法和含有青色成色剂的卤化银彩色照相材料

    公开(公告)号:US5256526A

    公开(公告)日:1993-10-26

    申请号:US800082

    申请日:1991-11-29

    IPC分类号: G03C7/305 G03C7/38 G03C7/407

    CPC分类号: G03C7/30529 G03C7/383

    摘要: A silver halide color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer containing at least one 1H-pyrrolo[1,2-b][1,2,4]triazole cyan coupler represented by the following general formula (I) or (II): ##STR1## wherein R.sub.1 and R.sub.2 each represents an electron withdrawing group having a Hammett's substituent constant .sigma.p value of 0.20 or more; R.sub.1 and R.sub.2 may be bonded to form a ring; the sum of a Hammett's substituent constant .sigma.p value of R.sub.1 and R.sub.2 is 0.65 or more; R.sub.3 represents a hydrogen atom or a substituent; and X represents a hydrogen atom or a substituent capable of being released upon coupling with an oxidation product of an aromatic primary amine color developing agent; said coupler may be in a form of a bis-compound or a polymer formed at R.sub.1, R.sub.2, R.sub.3 or X; and a cyan image forming method comprising imagewise exposing a silver halide color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and subjecting the exposed photographic material to color development with an aromatic primary amine color dveloping agent at the presence of the above-described 1H-pyrrolo[1,2-b][1,2,4]triazole cyan coupler.

    Dry image-forming process
    94.
    发明授权
    Dry image-forming process 失效
    干成像过程

    公开(公告)号:US5250386A

    公开(公告)日:1993-10-05

    申请号:US759648

    申请日:1991-09-13

    IPC分类号: G03C8/40 G03C8/00

    CPC分类号: G03C8/4013

    摘要: A dry image-forming process is disclosed. The dry image-forming process of the invention comprises heat developing a light-sensitive material comprising a support having thereon at least a photosensitive silver halide, a binder, and a dye releasing redox compound said dye releasing redox compound being reductive to the photosensitive silver halide and being capable of releasing a hydrophilic dye upon reaction with the photosensitive silver halide under heating, after or simultaneously with imagewise exposure, to form imagewise a mobile hydrophilic dye and heating, after simultaneously with the heat development, the light-sensitive material together with a dye-fixing layer in the presence of a hydrophilic thermal solvent to thereby transfer the mobile hydrophilic dye onto the dye-fixing layer to form a dye image and fix the dye image. The heat development is carried out in a state containing substantially no water, and the whole of steps are carried out without particular supplying a solvent.

    摘要翻译: 公开了干成像方法。 本发明的干成像方法包括对包含其上至少具有感光卤化银,粘合剂和释放染料的氧化还原化合物的载体进行热显影,所述染料释放氧化还原化合物还原成感光卤化银 并且能够在加热下,在成像曝光之后或与成像曝光同时与感光卤化银反应时释放亲水性染料,以形成移动的亲水性染料并在与热显影同时加热之后将感光材料与 在亲水性热溶剂存在下进行染色固定层,从而将移动的亲水性染料转移到染料固定层上,形成染料图像并固定染料图像。 热显影在基本上不含水的状态下进行,整个步骤在不特别供应溶剂的情况下进行。

    Color-forming coupler and a silver halide color photographic material
containing the same
    95.
    发明授权
    Color-forming coupler and a silver halide color photographic material containing the same 失效
    彩色成色联轴器和含有相同颜色的银色彩色摄影材料

    公开(公告)号:US5227287A

    公开(公告)日:1993-07-13

    申请号:US796848

    申请日:1991-11-25

    IPC分类号: G03C7/305 G03C7/38

    CPC分类号: G03C7/3815 G03C7/30529

    摘要: There is disclosed a cyan dye-forming coupler represented by formula (I) and a silver halide color photographic material containing same. ##STR1## wherein EWG represents an electron-attractive group having a Hammett substituent constant .sigma..sub.p value of 0.30 or more, R.sub.1 and R.sub.2 each represent a substituent, l represents an integer of 0 or 1, X represents a hydrogen atom or a group capable of being released upon coupling reaction with the oxidized product of an aromatic primary amine derivative, and Y represents a hydroxyl group or a sulfonamido group.

    Color photographic light-sensitive material containing a naphthyl azo
dicyano halo phenyl compound
    96.
    发明授权
    Color photographic light-sensitive material containing a naphthyl azo dicyano halo phenyl compound 失效
    含有萘基偶氮二氰基卤代苯基化合物的彩色照相感光材料

    公开(公告)号:US5223387A

    公开(公告)日:1993-06-29

    申请号:US940738

    申请日:1992-09-08

    IPC分类号: G03C8/10

    CPC分类号: G03C8/10

    摘要: A color light-sensitive material comprising a support provided thereon at least one light-sensitive silver salt layer combined with an image forming compound represented by formula (I) ##STR1## wherein Dye represents a cyan dye group or a precursor thereof represented by formula (II) defined in the specification;X represents a chemical bond or a linking group;Y represents a group which releases Dye corresponding to or countercorresponding to light-sensitive silver salt having an imagewise latent image and makes a difference in diffusibility between the dye thus released and the compound represented by formula (I), provided that Dye and X are linked to each other by A or E in formula (II); andq represents an integer of 1 or 2, provided that when q is 2, the two groups (Dye--X) may be the same or different.

    摘要翻译: 一种彩色感光材料,包括在其上提供的至少一种感光银盐层与由式(I)表示的成像化合物组合的载体,其中染料代表青色染料基团或其前体, 由本说明书中定义的式(II)表示; X表示化学键或连接基团; Y表示对与具有成像潜像的感光性银盐相对应或相反对应的染料,使得如此释放的染料与式(I)表示的化合物之间的扩散性差异,只要染料和X连接即可 通过式(II)中的A或E彼此相关; 并且q表示1或2的整数,条件是当q为2时,两个基团(染料-X)可以相同或不同。

    Real-time control system for NMR spectrometer
    97.
    发明授权
    Real-time control system for NMR spectrometer 失效
    NMR光谱仪的实时控制系统

    公开(公告)号:US5206593A

    公开(公告)日:1993-04-27

    申请号:US605997

    申请日:1990-10-31

    IPC分类号: G01R33/28

    CPC分类号: G01R33/28

    摘要: A real-time control system for use with an NMR spectrometer. The control system comprises a control section, a plurality of functional units controlled by the control section, and a bus line connecting the control section with the functional units. Each functional unit has a memory storing event data specifying the conditions of control means such as gates included in the functional unit. The control section has a memory storing timing data and event codes specifying event data. The control section successively produces timing signals and event codes according to the timing data. The timing signals are transmitted to the functional units over the bus. Each functional unit reads event data from its memory according to the incoming event codes and controls its gates according to the event data in synchronism with the timing signals.

    摘要翻译: 用于NMR光谱仪的实时控制系统。 控制系统包括控制部分,由控制部分控制的多个功能单元以及连接控制部分与功能单元的总线。 每个功能单元具有存储事件数据的存储器,该事件数据指定包括在功能单元中的诸如门的控制装置的条件。 控制部分具有存储定时数据和指定事件数据的事件代码的存储器。 控制部根据定时数据依次产生定时信号和事件代码。 定时信号通过总线传输到功能单元。 每个功能单元根据输入事件代码从其存储器中读取事件数据,并根据与定时信号同步的事件数据控制其门。

    Color image recording method
    99.
    发明授权
    Color image recording method 失效
    彩色图像记录方法

    公开(公告)号:US5096801A

    公开(公告)日:1992-03-17

    申请号:US503643

    申请日:1990-04-03

    摘要: A novel color image recording method is provided, which comprises exposing to light a light-sensitive material obtained by dispersing a composition containing at least a photopolymerization initiator, a color image-forming substance and a polymerizable compound in a hydrophilic binder and then coating said dispersion on a support, subjecting said polymerizable compound in the exposed portions to polymerization, and then (a) eluting said color image-forming substance contained in the unpolymerized polymerizable compound in the unexposed portions with an alkaline aqueous solution or (b) subjecting said color image-forming substance contained in the unpolymerized polymerizable compound in the unexposed portions to chemical change so that it is discolored, thereby forming dye images.

    摘要翻译: 提供一种新颖的彩色图像记录方法,其包括通过将含有至少一种光聚合引发剂,彩色成像物质和可聚合化合物的组合物分散在亲水性粘合剂中而获得的感光材料曝光,然后涂布所述分散体 在支持体上使暴露部分中的所述可聚合化合物进行聚合,然后(a)用碱性水溶液洗脱未曝光部分中包含的未聚合的可聚合化合物中的所述彩色图像形成物质,或(b)使所述彩色图像 包含在未曝光部分中的未聚合的可聚合化合物中的化合物质化学变化,使其变色,从而形成染料图像。

    Heat-sensitive transfer material
    100.
    发明授权
    Heat-sensitive transfer material 失效
    热敏转印材料

    公开(公告)号:US4910187A

    公开(公告)日:1990-03-20

    申请号:US239580

    申请日:1988-09-01

    摘要: A heat-sensitive transfer material comprising a support having provided thereon a heat-sensitive transfer layer, wherein said layer contains a dye represented by formula (I): ##STR1## wherein R.sub.1 and R.sub.2, which may be the same or different, each represents a hydrogen atom, a halogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, an aryl group, aryloxy group, an aralkyl group, a cyano group, an acylamino group, a sulfonylamino group, a ureido group, an alkylthio group, an arylthio group, an alkoxycarbonyl group, carbamoyl group, a sulfamoyl group, a sulfonyl group, an acyl group, or an amino group;R.sub.3 and R.sub.4, which may be the same or different, each represents an alkyl group, a cycloalkyl group, an aralkyl group, or an aryl group;provided that either R.sub.3 and R.sub.4, R.sub.2 and R.sub.3, or R.sub.2 and R.sub.4, may combine to each other and the adjacent atoms to form a ring;n represents an integer of from 0 to 3;X, Y and Z, which may be the same or different,each represents a ##STR2## group or a nitrogen atom, wherein R.sub.5 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aralkyl group, an aryl group, an alkoxy group, an aryloxy group, or an amino group;when X and Y or X and Z each represents ##STR3## they may be combine with each other to form a saturated or unsaturated carbon ring; andprovided that the aforesaid group comprising R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 each may be substituted.

    摘要翻译: 一种热敏转印材料,其包含在其上设置有热敏转印层的载体,其中所述层含有由式(I)表示的染料:其中R1和R2可以相同或不同 各自表示氢原子,卤素原子,烷基,环烷基,烷氧基,芳基,芳氧基,芳烷基,氰基,酰氨基,磺酰基氨基,脲基, 烷硫基,芳硫基,烷氧基羰基,氨基甲酰基,氨磺酰基,磺酰基,酰基或氨基; R 3和R 4可以相同或不同,各自表示烷基,环烷基,芳烷基或芳基; 条件是R 3和R 4,R 2和R 3或R 2和R 4可以彼此结合并且相邻原子形成环; n表示0〜3的整数, X,Y和Z可以相同或不同,分别表示基或氮原子,其中R5表示氢原子,烷基,环烷基,芳烷基,芳基, 烷氧基,芳氧基或氨基; 当X和Y或X和Z各自表示“它们”时,它们可以彼此结合形成饱和或不饱和的碳环; 并且前提是包括R1,R2,R3,R4和R5各自可以被取代。