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    • 2. 发明申请
    • METHOD FOR CONTINUOUSLY PRODUCING OXIDIZED CYCLIC PHENOL SULFIDES
    • 连续生产氧化环丙醇硫化物的方法
    • US20110028737A1
    • 2011-02-03
    • US12867207
    • 2009-02-16
    • Masateru YasumuraYoshikazu AokiMasami Ito
    • Masateru YasumuraYoshikazu AokiMasami Ito
    • C07D341/00
    • C07D341/00
    • The present invention discloses a method for continuously producing an oxidized cyclic phenol sulfide which comprises the continuous steps of reacting a para-alkyl phenol compound as a raw material with 1.7 to 2.5 molar equivalent of sulfur and 0.25 to 0.75 molar equivalent of an alkali metal reagent per 1 mol of the phenol compound (the first step); and oxidizing a cyclic phenol sulfide of the formula (2) produced by the above reaction with an oxidizing agent(s) in the same reactor as that of the first step and without taking the cyclic phenol sulfide out of the reactor; wherein R represents a straight or branched alkyl group having 1 to 6 carbon atoms, and m is an integer from 4 to 8, to obtain an oxidized cyclic phenol sulfide of the formula (3) (the second step): wherein R represents a straight or branched alkyl group having 1 to 6 carbon atoms, m is an integer from 4 to 8, and n is 1 or 2.
    • 本发明公开了一种连续生产氧化环状苯酚硫化物的方法,该方法包括以对数烷基酚化合物为原料与1.7〜2.5摩尔当量硫和0.25〜0.75摩尔当量碱金属试剂的连续步骤 每1mol酚化合物(第一步); 和在与第一步骤相同的反应器中用氧化剂氧化由上述反应产生的式(2)的环状苯酚硫化物,而不将环状苯酚硫化物从反应器中取出; 其中R表示具有1至6个碳原子的直链或支链烷基,m为4至8的整数,以获得式(3)(第二步)的氧化环状苯酚硫化物:其中R表示直链 或碳原子数为1〜6的支链烷基,m为4〜8的整数,n为1或2。
    • 5. 发明授权
    • Multiplexer and multiplexing method
    • 多路复用和复用方法
    • US07729383B2
    • 2010-06-01
    • US11783326
    • 2007-04-09
    • Yoshikazu Aoki
    • Yoshikazu Aoki
    • H04J3/24
    • H04N21/4341H04N21/23406H04N21/2368H04N21/2401H04N21/44004
    • A multiplexer according to an embodiment of the present invention multiplexes a video ES and an audio ES to generate a transport stream TS, and includes a video buffer, an audio buffer, and a multiplexing unit. A multiplexing unit executes simulation of a buffer occupation necessary for a video ES upon decoding the TS, and controls multiplexing of the video ES not to cause overflow of a buffer based on the simulation result. In the simulation, a predetermined time Δt is divided by N ((main buffer leak rate/system clock frequency)×N (N is an integer)=integer), the remainder R is carried over to the next calculation, and a current main buffer leak data amount is calculated by integer arithmetic based on the integral quotient.
    • 根据本发明的实施例的多路复用器复用视频ES和音频ES以生成传输流TS,并且包括视频缓冲器,音频缓冲器和复用单元。 复用单元在对TS解码时执行视频ES所需的缓冲器占用的模拟,并且基于模拟结果控制视频ES的复用不引起缓冲器的溢出。 在模拟中,将预定时间&Dgr; t除以N((主缓冲器泄漏率/系统时钟频率)×N(N是整数)=整数),将余数R转移到下一次计算, 当前主缓冲区泄漏数据量通过基于积分商的整数运算来计算。
    • 6. 发明申请
    • Process For Producing N,N'-Carbonyldiimidazole
    • 制备N,N'-羰基二咪唑的方法
    • US20090088575A1
    • 2009-04-02
    • US11547524
    • 2005-03-29
    • Yoshikazu AokiNorimasa YokoyamaMasateru Yasumura
    • Yoshikazu AokiNorimasa YokoyamaMasateru Yasumura
    • C07D403/06
    • C07D233/54Y02P20/582
    • The present invention provides a process for producing N,N′-carbonyldiimidazole, comprising: reacting phosgene, diphosgene, or triphosgene with imidazole in an inert solvent to produce N,N′-carbonyldiimidazole; to imidazole hydrochloride yielded as a by-product in the above step, adding a gaseous or liquid basic compound represented by the below-shown general formula (1) in an inert solvent to conduct neutralization reaction; and circulating the imidazole thus generated to use it as a starting material for N,N′-carbonyldiimidazole production.In the general formula (1), R1, R2, and R3 each independently represents a hydrogen atom, a methyl group, or an ethyl group. The CDI produced by the production process of the invention is a compound useful in the fields of synthesis of pharmaceutical agents, synthesis of agricultural chemicals, peptide synthesis, and the like, e.g., intermolecular condensation reactions, intramolecular condensation reactions for synthesizing N-carboxylic anhydrides, production of activated esters, and the like. The compound is especially suitable for use in applications where colorlessness is required.
    • 本发明提供了制备N,N'-羰基二咪唑的方法,其包括:将光气,二光气或三光气与咪唑在惰性溶剂中反应以产生N,N'-羰基二咪唑; 在上述步骤中作为副产物产生的咪唑盐酸盐,在惰性溶剂中加入由下述通式(1)表示的气态或液态碱性化合物进行中和反应; 并使由此产生的咪唑循环使用其作为N,N'-羰基二咪唑生产的起始原料。 在通式(1)中,R 1,R 2和R 3各自独立地表示氢原子,甲基或乙基。 通过本发明的制造方法制备的CDI是可用于药物合成,农药合成,肽合成等领域的化合物,例如分子间缩合反应,用于合成N-羧酸酐的分子内缩合反应 ,活性酯的制备等。 该化合物特别适用于需要无色性的应用。
    • 9. 发明授权
    • Methods for producing cyclic phenol sulfides
    • 环状苯酚硫化物的制备方法
    • US08263786B2
    • 2012-09-11
    • US12439121
    • 2007-08-29
    • Masateru YasumuraYoshikazu AokiMasami ItoMasafumi UmekawaNaohiro Tarumoto
    • Masateru YasumuraYoshikazu AokiMasami ItoMasafumi UmekawaNaohiro Tarumoto
    • C07D341/00
    • C07D341/00
    • The object of the present invention is, in methods for producing cyclic phenol sulfides, to provide methods for producing a number of more macrocyclic products, which comprise the steps of producing a mixture of cyclic phenol sulfides from an inexpensive raw material in one step without inducing the reduction in yield of a cyclic quatromer; and easily separating and purifying a single component from the mixture of cyclic phenol sulfides.The present invention discloses methods for producing a cyclic phenol sulfide which comprises the step of reacting a phenol compound as a raw material, in a one-step reaction, with 1.7 to 2.5 molar equivalent of sulfur and 0.25 to 0.75 molar equivalent of an alkali metal reagent per 1 mol of the phenol compound to obtain a mixture of cyclic phenol sulfide wherein m=4 and at least one kind(s) of cyclic phenol sulfide wherein m=5 to 9, or each separate cyclic phenol sulfide comprised in the mixture.
    • 本发明的目的在于提供环状苯酚硫化物的制造方法,提供多种大环化合物的制造方法,其特征在于,在一个步骤中,从一价廉的原料制造环状苯酚硫化物的混合物, 循环四聚体的产率降低; 并且容易地从环状苯酚硫化物的混合物中分离和纯化单一组分。 本发明公开了一种环状苯酚硫化物的制造方法,其特征在于,在一步反应中,使作为原料的酚化合物与1.7〜2.5摩尔当量的硫和0.25〜0.75摩尔当量的碱金属 试剂,每1mol酚化合物,得到m = 4的环状苯酚硫化物和m = 5〜9的至少一种环状苯酚硫化物或混合物中所含的各自分离的环状苯酚硫化物的混合物。
    • 10. 发明授权
    • Method for continuously producing oxidized cyclic phenol sulfides
    • 连续生产氧化型环状苯酚硫化物的方法
    • US08222428B2
    • 2012-07-17
    • US12867207
    • 2009-02-16
    • Masateru YasumuraYoshikazu AokiMasami Ito
    • Masateru YasumuraYoshikazu AokiMasami Ito
    • C07D341/00
    • C07D341/00
    • The present invention discloses a method for continuously producing an oxidized cyclic phenol sulfide which comprises the continuous steps of reacting a para-alkyl phenol compound as a raw material with 1.7 to 2.5 molar equivalent of sulfur and 0.25 to 0.75 molar equivalent of an alkali metal reagent per 1 mol of the phenol compound (the first step); and oxidizing a cyclic phenol sulfide of the formula (2) produced by the above reaction with an oxidizing agent(s) in the same reactor as that of the first step and without taking the cyclic phenol sulfide out of the reactor: wherein R represents a straight or branched alkyl group having 1 to 6 carbon atoms, and m is an integer from 4 to 8, to obtain an oxidized cyclic phenol sulfide of the formula (3) (the second step): wherein R represents a straight or branched alkyl group having 1 to 6 carbon atoms, m is an integer from 4 to 8, and n is 1 or 2.
    • 本发明公开了一种连续生产氧化环状苯酚硫化物的方法,该方法包括以对数烷基酚化合物为原料与1.7〜2.5摩尔当量硫和0.25〜0.75摩尔当量碱金属试剂的连续步骤 每1mol酚化合物(第一步); 和在与第一步骤相同的反应器中用氧化剂氧化由上述反应生成的式(2)的环状苯酚硫化物,而不将环状苯酚硫化物从反应器中取出:其中R表示 具有1至6个碳原子的直链或支链烷基,m为4至8的整数,得到式(3)(第二步)的氧化环状苯酚硫化物:其中R表示直链或支链烷基 具有1至6个碳原子,m为4至8的整数,n为1或2。