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    • 181. 发明授权
    • Speed reducer
    • 减速机
    • US5183443A
    • 1993-02-02
    • US824518
    • 1992-01-23
    • Hiroshi MurakamiTetsu Sakaida
    • Hiroshi MurakamiTetsu Sakaida
    • F16H49/00
    • F16H49/001
    • A speed reducer has an input member, an output member provided coaxially with the input member and a cage disposed between opposite surfaces of the input member and the output member. The cage is formed with a plurality of pockets arranged circumferentially at equal intervals. A rolling element is received in each pocket. The output member is formed with recesses arranged circumferentially at equal intervals, the number of which is unequal to the number of the rolling elements. The input member is provided with a contact surface for pressing the rolling elements against the bottoms of the recesses when the input member rotates. In another arrangement, a cylindrical output member is provided around a disk-shaped input member. Disks are rotatably mounted in the input member and having part of their outer periphery protruding from the outer periphery of the input member. Each disk is provided along the outer periphery thereof with recesses arranged at intervals corresponding to the pitch of said rolling elements and engageable with the rolling elements.
    • 减速器具有输入构件,与输入构件同轴设置的输出构件和设置在输入构件和输出构件的相对表面之间的保持架。 保持架形成有以等间隔周向布置的多个凹穴。 滚动元件被容纳在每个口袋中。 输出构件形成有以相等间隔周向布置的凹部,其数量不等于滚动元件的数量。 输入构件设置有接触表面,用于当输入构件旋转时将滚动元件压靠在凹部的底部。 在另一种布置中,圆盘形输出构件围绕盘形输入构件设置。 盘可旋转地安装在输入构件中,并且其外周的一部分从输入构件的外周突出。 每个盘沿着其外周设置有以与所述滚动元件的间距相对应的间隔布置并且可与滚动元件接合的凹槽。
    • 183. 发明授权
    • Process for preparing an enol silyl ether compound
    • 制备固体硅胶化合物的方法
    • US5071966A
    • 1991-12-10
    • US576499
    • 1990-09-10
    • Kazunori KanHiroshi MurakamiNobuo NagashimaNoboru UeyamaTakehisa Ohashi
    • Kazunori KanHiroshi MurakamiNobuo NagashimaNoboru UeyamaTakehisa Ohashi
    • C07F7/02C07F7/18
    • C07F7/186C07F7/1852
    • A process for preparing an enol silyl ether compound from a diazoacetoacetic acid ester having the general formula (IV): ##STR1## wherein R.sup.1 is a lower alkyl group having 1 to 6 carbon atoms, phenyl group, a substituted phenyl group, an aralkyl group or allyl group, and R.sup.2, R.sup.3 and R.sup.4 are the same or mutually different and each is a lower alkyl group having 1 to 6 carbon atoms, which comprises reacting a diazoacetoacetic acid ester having the general formula (I): ##STR2## wherein R.sup.1 is the same as defined above, with a trialkylsilyl chloride having the general formula (II): ##STR3## wherein R.sup.2, R.sup.3 and R.sup.4 are the same as defined above, in an inert solvent in the presence of an organic base and an alkali halide having the general formula (III):MX (III)wherein M is an alkaline metal and X is bromine atom or iodine atom. The desired compound is useful as an intermediate for synthesis of carbapenem .beta.-lactam antibiotics.
    • PCT No.PCT / JP90 / 00038 Sec。 371 1990年9月10日第 102(e)1990年9月10日PCT 1990年1月12日PCT PCT。 公开号WO90 / 08149 日本时间1990年7月26日。一种由具有通式(IV)的重氮乙酰乙酸酯制备烯醇甲硅烷基醚化合物的方法:其中R 1为具有1至6个碳原子的低级烷基,苯基 基团,取代的苯基,芳烷基或烯丙基,R 2,R 3和R 4相同或相互不同,各自为具有1至6个碳原子的低级烷基,其包括使具有一般性基团的重氮乙酰乙酸酯 式(I):其中R 1与上述定义相同,具有通式(II)的三烷基甲硅烷基氯:其中R2,R3和R4与上述定义相同 在有机碱和具有通式(III)的碱金属卤化物存在下,在惰性溶剂中反应:其中M是碱金属,X是溴原子或碘原子的MX(III)。 所需化合物可用作合成碳青霉烯β-内酰胺抗生素的中间体。
    • 184. 发明授权
    • Method of manufacturing a platinum tip
    • 铂尖的制造方法
    • US5035780A
    • 1991-07-30
    • US328029
    • 1989-03-23
    • Teruo SuzukiKenichi OgawaHiroshi Murakami
    • Teruo SuzukiKenichi OgawaHiroshi Murakami
    • C25F3/16
    • G01Q60/16B82Y15/00B82Y35/00C25F3/16Y10T428/12389Y10T428/12403
    • In the production of a tunneling probe tip having a sharp point by utilizing electropolishing, the present invention has enabled the production of a platinum tunneling probe tip always produceable in an identical conical form having high point sharpness without scattering in the shape caused by the anisotropy of crystal face with respect to the rate of polishing during polishing of a platinum material through adoption of a two-stage polishing process, which comprises subjecting a platinum tunneling probe tip material to a primary polishing for primary shaping of the tunneling probe tip material into a tunneling probe tip form, and then subjecting the shaped material to a secondary polishing for sharpening of the point with a mixed acid comprising sulfuric acid, nitric acid, and phosphoric acid.
    • 在通过利用电解抛光制造具有尖锐点的隧道探针尖端的情况下,本发明使得能够生产铂隧道探针头,其总是可以以相同的锥形形式产生,具有高尖锐度,而不会由于各向异性引起的形状散射 相对于通过采用两阶段抛光工艺在铂材料抛光期间的抛光速率的晶面,其包括使铂隧道探针尖端材料进行初步抛光以将隧道探针针尖材料初级成形为隧道 探针尖端形状,然后使成形材料进行二次抛光以用包含硫酸,硝酸和磷酸的混合酸来锐化点。