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    • 72. 发明授权
    • Static pressure gas bearing assembly
    • 静压气体轴承总成
    • US4838710A
    • 1989-06-13
    • US102358
    • 1987-09-29
    • Jiro OhtaSadamu TozawaKoichi MatsushitaYutaka Maruyama
    • Jiro OhtaSadamu TozawaKoichi MatsushitaYutaka Maruyama
    • C23C14/32C23C30/00F16C32/06F16C33/04
    • F16C32/0618C23C14/32C23C30/00F16C33/16F16C32/0685F16C32/0696F16C33/043Y10S384/902
    • A static pressure gas bearing assemby having a gaseous fluid discharging bearing member for supporting a shaft by the discharged gaseous fluid is disclosed. The bearing member is made of porous graphite. For the manufacture, carbon particles approximately 80% of which have particle diameters not greater than approx. 40 microns, more particularly, particle diameters ranging from 1-20 microns are used. The carbon particles are subjected to molding, calcination and graphitization, whereby a porous graphite member having pores distributed substantially uniformly is obtained. In another aspect of the invention, the bearing member is made of a porous graphite material having a specific degree of swelling. Also, in another aspect, the surface of the shaft to be supported by the bearing member is coated with titanium nitride by ion plating treatment. In this manner, a high-precision and high-prerformance bearing assembly can be provided with reduced manufacturing costs.
    • 公开了一种具有用于通过排出的气态流体支撑轴的气态流体排出轴承构件的静压气体轴承。 轴承构件由多孔石墨制成。 对于制造而言,大约80%的碳粒子的粒径不大于约。 40微米,更特别地,使用范围为1-20微米的粒径。 对碳粒进行成型,煅烧和石墨化,得到具有基本上均匀分布的孔的多孔石墨构件。 在本发明的另一方面,轴承构件由具有特定的溶胀度的多孔石墨材料制成。 此外,在另一方面,由轴承构件支撑的轴的表面通过离子镀处理被涂覆有氮化钛。 以这种方式,可以降低制造成本,提供高精度和高性能的轴承组件。
    • 75. 发明授权
    • Method of purifying hexafluoroacetone containing chlorofluoroacetones
    • 净化含氟氯丙酮六氟丙酮的方法
    • US4386223A
    • 1983-05-31
    • US320079
    • 1981-11-10
    • Toshikazu KawaiYutaka MaruyamaJunji NegishiAkira Negishi
    • Toshikazu KawaiYutaka MaruyamaJunji NegishiAkira Negishi
    • C07C49/167C07C45/00C07C45/78C07C45/85C07C67/00
    • C07C45/783C07C45/78C07C45/85
    • Crude hexafluoroacetone (HFA) containing chlorofluoroacetone(s) (CFA) as well as hydrogen halide(s) is purified by initially allowing the crude HFA to be absorbed in water to give an aqueous solution in which HFA and CFA are in the form of their respective hydrates, adding a calcium compound such as carbonate, hydroxide or oxide to the solution to neutralize the hydrogen halide(s), and decomposing the hydrated CFA by first adding an alkali metal compound such as K.sub.2 CO.sub.3 or Na.sub.2 CO.sub.3 or an alkaline earth metal compound such as Ca(OH).sub.2, Ba(OH).sub.2, CaO or BaO to the solution and subsequently adding a mineral acid such as HCl or H.sub.2 SO.sub.4 to the same solution. This procedure results in complete decomposition of CFA without causing decomposition of HFA and spontaneous separation of the liquid reaction system into two layers, one of which is exclusively HFA hydrate. Accordingly it is easy to separate pure HFA hydrate from the decomposed impurities.
    • 通过首先使粗HFA被吸收在水中来纯化含有氯氟丙酮(CFA)和卤化氢的粗六氟丙酮(HFA),其中HFA和CFA为其HFA和CFA形式的水溶液 各自的水合物,向溶液中加入钙化合物如碳酸盐,氢氧化物或氧化物以中和卤化氢,并且通过首先加入碱金属化合物如K 2 CO 3或Na 2 CO 3或碱土金属化合物来分解水合CFA, 作为Ca(OH)2,Ba(OH)2,CaO或BaO,然后向同一溶液中加入无机酸如HCl或H 2 SO 4。 该过程导致CFA完全分解而不引起HFA分解,并将液体反应体系自发分离成两层,其中之一仅为HFA水合物。 因此,容易将纯HFA水合物与分解的杂质分离。
    • 76. 发明授权
    • Organogermanium compounds
    • 有机锗化合物
    • US4361579A
    • 1982-11-30
    • US188787
    • 1980-09-19
    • Tomohiko MunakataChiaki TashiroYutaka Maruyama
    • Tomohiko MunakataChiaki TashiroYutaka Maruyama
    • C07F7/30A01N9/00A61K31/28A61L13/00
    • C07F7/30Y10S514/825
    • A polycondensation product of a germanium trihydroxide compound of the formula: ##STR1## wherein W is hydrogen, alkyl, halogen, alkoxycarbonyl, carboxy, aryl, cycloalkyl which may be substituted, cycloalkenyl, heteroaryl or a group of the formula: (R.sup.1)(R.sup.2)N-- wherein R.sup.1 and R.sup.2 are each lower alkyl or R.sup.1 and R.sup.2 together with the adjacent nitrogen atom form a group of the formula: ##STR2## wherein R.sup.3 is hydrogen, lower alkyl, phenyl which may be substituted, aralkyl, acyl, acylamino or heteroaryl, and X is --N.dbd., --CH.dbd. or ##STR3## A is a bond, alkylene, alkenylene, --CO--Y--, --CONH--Y--, --O--Y--, --S--Y-- or ##STR4## (Y is alkylene); and R is alkyl. Such compounds are useful as agents for treating immune diseases.
    • 下式的三氢氧化锗化合物的缩聚产物,其中W是氢,烷基,卤素,烷氧基羰基,羧基,芳基,可被取代的环烷基,环烯基,杂芳基或下式的基团:(R1)( R 2)N-,其中R 1和R 2各自为低级烷基或R 1和R 2与相邻的氮原子一起形成下式的基团:其中R 3为氢,低级烷基,可被取代的苯基,芳烷基,酰基, 酰基氨基或杂芳基,X是-N =,-CH =或A是键,亚烷基,亚烯基,-CO-Y-,-CONH-Y-,-OY-,-SY-或 (Y为亚烷基); 和R是烷基。 这些化合物可用作治疗免疫疾病的药剂。