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    • 92. 发明授权
    • Lead frame free of irregular deformation
    • 引线框架无变形
    • US5763942A
    • 1998-06-09
    • US800297
    • 1997-02-13
    • Yasuhiro Suzuki
    • Yasuhiro Suzuki
    • H01L23/50H01L23/495
    • H01L23/49541H01L2924/0002
    • There is provided a lead frame including an outer frame, a die pad on which a semiconductor device is to be mounted, a plurality of outer leads extending from the outer frame to the die pad, a dam bar connected at opposite ends thereof to the outer frame for connecting the outer leads to one another for prevention of resin overflow, and a support lead extending obliquely to the dam bar for connecting the die pad to the outer frame. The outer frame is formed beyond an end of the dam bar with an opening extending in a direction making an angle with a direction in which the dam bar longitudinally extends so that there is formed an elastically deformable portion between the opening and an end of the dam bar, the opening having a length covering at least a width of the dam bar. When there is generated a stress because of shrinkage of resin with which a semiconductor device is sealed, the elastically deformable portion is first deformed by absorbing a stress to thereby prevent the stress from spreading further to the dam bar. Thus, it is possible to prevent irregular bending of outer leads connected by the dam bar with each other. As a result, higher accuracy is expected with respect to a position of outer leads after a semiconductor device is sealed with resin.
    • 提供了一种引线框架,其包括外框架,其上安装有半导体器件的管芯焊盘,从外框架延伸到管芯焊盘的多个外引线,在其两端连接到外管 用于将外引线彼此连接以防止树脂溢出的框架,以及倾斜延伸到坝条的支撑引线,用于将管芯焊盘连接到外框架。 外框架形成为超过阻挡杆的端部,开口沿与坝条纵向延伸的方向成一角度的方向延伸,使得在开口和坝的端部之间形成可弹性变形的部分 所述开口具有覆盖所述坝条的至少宽度的长度。 当由于密封半导体器件的树脂的收缩而产生应力时,首先通过吸收应力来使可弹性变形部变形,从而防止应力进一步扩散到堤坝。 因此,可以防止由堤坝彼此连接的外部引线的不规则弯曲。 结果,在用树脂密封半导体器件之后,相对于外部引线的位置,期望更高的精度。
    • 94. 发明授权
    • Polyarylene sulfide resin composition
    • 聚芳硫醚树脂组合物
    • US5668214A
    • 1997-09-16
    • US643432
    • 1996-05-08
    • Yasuhiro Suzuki
    • Yasuhiro Suzuki
    • C08L51/08C08L81/02C08G63/48
    • C08L81/02C08L51/08
    • A polyarylene sulfide resin composition having improved toughness and impact resistance is formed by 100 wt. parts of polyarylene sulfide and 0.5-50 wt. parts of a graft copolymer. The graft copolymer includes an olefin copolymer segment comprising .alpha.-olefin units and .alpha.,.beta.-unsaturated acid glycidyl ester units, and a grafting polymer segment comprising .alpha.,.beta.-unsaturated acid glycidyl ester units and chemically bonded to the olefin copolymer segment. The .alpha.-olefin is preferably ethylene. The .alpha.,.beta.-unsaturated acid glycidyl ester is preferably glycidyl acrylate or glycidyl methacrylate. The grafting polymer segment is preferably in the form of a copolymer of an .alpha.,.beta.-unsaturated acid glycidyl ester and a monoethylenically unsaturated monomer.
    • 具有改善的韧性和耐冲击性的聚芳硫醚树脂组合物由100重量% 部分聚芳硫醚和0.5-50wt。 部分接枝共聚物。 接枝共聚物包括包含α-烯烃单元和α,β-不饱和酸缩水甘油酯单元的烯烃共聚物链段和包含α,β-不饱和酸缩水甘油酯单元并化学键合到烯烃共聚物链段的接枝聚合物链段。 α-烯烃优选为乙烯。 α,β-不饱和酸缩水甘油酯优选为丙烯酸缩水甘油酯或甲基丙烯酸缩水甘油酯。 接枝聚合物链段优选为α,β-不饱和酸缩水甘油酯和单烯属不饱和单体的共聚物形式。
    • 96. 发明授权
    • Flame-resisting resin composition
    • 耐火树脂组合物
    • US5578679A
    • 1996-11-26
    • US363257
    • 1994-12-22
    • Yasuhiro SuzukiMasahito Tada
    • Yasuhiro SuzukiMasahito Tada
    • C08L51/06C08L81/02C08G63/48
    • C08L81/02C08L51/06
    • The disclosure describes a flame-resisting resin composition comprising:(A) 90 to 99.5% by weight of a polyarylene sulfide; and(B) 0.5 to 10% by weight of a graft copolymer composed of an olefinic copolymer (a) having 30 to 59% by weight (based on the weight of said graft copolymer) of an .alpha.-olefin repeating unit and a glycidyl ester residue repeating unit of an .alpha.,.beta.-unsaturated mono-carboxylic acid, and at least one of polymers (b) having the repeating unit represented by the following formula (I):said olefinic copolymer (a) being branched or crosslinked with at least one of the polymers (b), ##STR1## wherein R represents a hydrogen atom or a lower alkyl group having from 1 to about 6 carbon atoms, X represents a benzyl group, --COOCH.sub.3, --COOC.sub.2 H.sub.5, --COOC.sub.4 H.sub.9, --COOCH.sub.2 CH(C.sub.2 H.sub.5)C.sub.4 H.sub.9, --CN, a phenyl group or a maleimide group.
    • 本发明描述了一种阻燃树脂组合物,其包含:(A)90至99.5重量%的聚芳硫醚; 和(B)0.5〜10重量%的由α-烯烃重复单元和缩水甘油酯的30〜59重量%(以所述接枝共聚物的重量计)的烯烃共聚物(a)组成的接枝共聚物 α,β-不饱和单羧酸的残基重复单元,以及具有由下式(I)表示的重复单元的聚合物(b)中的至少一种:所述烯烃共聚物(a)至少是支化或交联的 聚合物(b),其中R表示氢原子或具有1至约6个碳原子的低级烷基的聚合物(b),(I)之一,X表示苄基,-COOCH 3,-COOC 2 H 5,-COOC 4 H 9, COOCH 2 CH(C 2 H 5)C 4 H 9,-CN,苯基或马来酰亚胺基。
    • 97. 发明授权
    • Webbed bevel gear
    • 网状伞齿轮
    • US5528952A
    • 1996-06-25
    • US277067
    • 1994-07-19
    • Kenji TakitaYasuhiro SuzukiToshio Kimura
    • Kenji TakitaYasuhiro SuzukiToshio Kimura
    • F16H55/17
    • F16H55/17Y10T74/19958
    • A webbed bevel gear in which webs are formed of a minimal size so that the gear can be downsized, while also improving the mechanical strength of the gear. The webbed bevel gear is made so as to be capable of avoiding losses from the webs and so that the strength of the dedendum can be maintained by the webs, while the strength and the wear resistance of the dedendum and the tooth surface is further improved. The webbed bevel gears (2, 2a-2c) are constructed as follows: each of the webs is formed with a concave curved surface defined by the base cone so that it can connect the two adjacent teeth at the dedendum between the teeth at the radial end of the gear, the value obtained by dividing the height (h) of the webs in relation to the module (m) of the gear meets the equation 0.2.ltoreq.h/m.ltoreq.0.6, and the value obtained by dividing the width (w) of the webs along the generating line of the base cone by the width (W) of the gear along the generating line of the base pitch cone meets the equation 0.04.ltoreq.w/W.ltoreq.0.20. A surface treatment, such as carburizing and/or nitriding is performed in a state in which the webs are coated with a surface treatment inhibitor, or alternatively, the tooth surface and the dedendum, except for the webs, are coated with a hard layer formed of a super hard material.
    • 一种网状伞齿轮,其中腹板由最小尺寸形成,使得齿轮可以小型化,同时还提高齿轮的机械强度。 网状锥齿轮被制造成能够避免从腹板的损失,并且能够通过腹板来维持齿根的强度,同时进一步提高齿根和牙齿表面的强度和耐磨性。 网状锥齿轮(2,2a-2c)的构造如下:每个腹板形成有由基底锥体限定的凹形曲面,使得其能够在径向上的齿之间的齿根处连接两个相邻的齿 齿轮的端部,通过将腹板的高度(h)相对于齿轮的模块(m)分开而获得的值满足等式0.2
    • 98. 发明授权
    • Poly(arylene thioether-ketone) copolymer and production process thereof
    • 聚(亚芳基硫醚 - 酮)共聚物及其制备方法
    • US5391645A
    • 1995-02-21
    • US63822
    • 1993-05-20
    • Yoshikatsu SatakeYoshiyuki InagumaYasuhiro Suzuki
    • Yoshikatsu SatakeYoshiyuki InagumaYasuhiro Suzuki
    • C08G75/02C08K5/35
    • C08G75/024C08G75/0245
    • Disclosed herein are a poly(arylene thioether-ketone) copolymer comprising (A) at least one poly(arylene thioether-ketone) segment having predominant recurring units of the formula ##STR1## wherein the --CO-- and --S-- are in the para position to each other, and (B) at least one poly(arylene thioether) segment having predominant recurring units of the formula ##STR2## (a) the ratio of the total amount of the poly(arylene thioether) segment (B) to the total amount of the poly(arylene thioether-ketone) segment (A) ranging from 0.05 to 5 by weight, (b) the number-average polymerization degree of the poly(arylene thioether) segment (B) being higher than 1 but lower than 10, and (c) said copolymer having a melt viscosity of 2-100,000 poises as measured at 350.degree. C. and a shear rate of 1,200/sec as well as a production process of the poly(arylene thioether-ketone) copolymer.
    • 本文公开了一种聚(亚芳基硫醚 - 酮)共聚物,其包含(A)至少一种具有主要重复单元的式(IMAGE)的聚(亚芳基硫醚 - 酮)链段,其中-CO-和-S-在对位 (B)至少一种具有下列主题重复单元的主要重复单元的聚(亚芳基硫醚)链段:(a)聚(亚芳基硫醚)链段(B)的总量与 聚(亚芳基硫醚 - 酮)链段(A)的总量为0.05-5重量%,(b)聚(亚芳基硫醚)链段(B)的数均聚合度高于1但低于 10,和(c)所述共聚物在350℃下测得的熔融粘度为2-100,000泊,剪切速率为1200 /秒,以及聚(亚芳基硫醚 - 酮)共聚物的制备方法。
    • 99. 发明授权
    • Induction motor control system
    • 感应电动机控制系统
    • US5387855A
    • 1995-02-07
    • US42405
    • 1993-04-02
    • Masanori MiyazakiYasuhiro SuzukiTadashi Saito
    • Masanori MiyazakiYasuhiro SuzukiTadashi Saito
    • H02P21/00H02P5/40
    • H02P21/00
    • In order to carry out commercial synchronous exchange for disconnecting an induction motor from its driving power supply and connecting it to a variable frequency power supply, or commercial synchronous switching for disconnecting the induction motor from the variable frequency power supply and connecting it to a commercial power supply, without any accompanying adverse shock, an induction-motor vector control technique is utilized. A phase-locked loop (PLL) is formed to detect the difference in phase between the output voltage from the variable frequency power supply or the magnetic flux phase of the induction motor on the one hand, and the phase of the power supply voltage on the other, so that the difference in phase thus detected can be maintained at a predetermined value.
    • 为了进行用于将感应电动机与其驱动电源断开并将其连接到可变频率电源的商业同步交换,或用于将感应电动机与变频电源断开并将其连接到商业电力的商业同步开关 供应,没有任何伴随的不利冲击,使用感应电动机矢量控制技术。 形成锁相环(PLL)以一方面检测来自变频电源的输出电压或感应电动机的磁通相位之间的相位差,以及电源电压的相位 另一方面,使得如此检测的相位差可以保持在预定值。
    • 100. 发明授权
    • Induction motor control system
    • 感应电动机控制系统
    • US5212438A
    • 1993-05-18
    • US873711
    • 1992-04-22
    • Masanori MiyazakiYasuhiro SuzukiTadashi Saito
    • Masanori MiyazakiYasuhiro SuzukiTadashi Saito
    • H02P21/00
    • H02P21/00
    • In order to carry out commercial synchronous exchange for disconnecting an induction motor from its driving power supply and connecting it to a variable frequency power supply or commercial synchronous switching for disconnecting the induction motor from the variable frequency power supply and connecting it to a commercial power supply without any accompanying adverse shock, an induction-motor vector control technique is utilized and furthermore, a phase-locked loop (PLL) is formed to detect the difference in phase between the phase of the output voltage from the variable frequency power supply or the magnetic flux phase of the induction motor on the one hand, and the phase of the voltage of the power supply on the other, so that the difference in phase thus detected can be maintained at a predetermined value.
    • 为了进行商业同步交换,以将感应电动机与其驱动电源断开并将其连接到变频电源或商用同步开关,用于将感应电动机与变频电源断开并将其连接到商用电源 没有任何伴随的不利冲击,利用感应电动机矢量控制技术,此外,形成锁相环(PLL)以检测来自可变频率电源或磁场的输出电压的相位之间的相位差 一方面是感应电动机的通量相位,另一方面是电源电压的相位,使得这样检测的相位差可以保持在预定值。