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    • 3. 发明申请
    • METHOD FOR MANUFACTURING A MOLD
    • 制造模具的方法
    • US20130217855A1
    • 2013-08-22
    • US13703841
    • 2011-06-07
    • Masato TakashimaTakayuki MiyashitaShinichi Hirota
    • Masato TakashimaTakayuki MiyashitaShinichi Hirota
    • B29C33/38
    • B29C33/3842B29C45/0025B29C45/78B29C2033/023B29C2945/76618B29K2995/0041
    • Provided is a method for manufacturing a mold for manufacturing a molded article, by which not only is the occurrence of flash suppressed but also the crystallization of the surface is sufficiently accelerated when the mold temperature during the molding of a crystalline thermoplastic resin is set at Tc2−100° C. or less. Based on a relationship between crystallization rate and resin temperature of the crystalline thermoplastic resin, a temperature at which the crystalline thermoplastic resin filled into a mold has a sufficiently fast crystallization rate near a cavity surface and a retention time during which the crystalline thermoplastic resin in the mold is retained at a temperature equal to at least at a temperature at which the resin has the sufficiently fast crystallization rate are derived, such that the derived temperature and the derived retention time allow the molded article to have a surface whose crystallinity falls within a desired range, and a heat-insulating layer which, when mold temperature is Tc2−100° C. or less, allows a time, during which temperature near surface of the mold cavity is retained at no less than the derived temperature, to fulfill the derived retention time is provided.
    • 本发明提供一种制造模制品的模具的方法,当结晶热塑性树脂成型时的模具温度设定为Tc2时,不仅抑制了闪光的发生而且表面的结晶也被充分加速 -100℃以下。 基于结晶热塑性树脂的结晶速度与树脂温度之间的关系,填充到模具中的结晶热塑性树脂的温度在空腔表面附近具有足够快的结晶速率,并且其中结晶热塑性树脂在 模具保持在至少等于树脂具有足够快的结晶速率的温度的温度,使得衍生的温度和得到的保留时间使得模制品具有结晶度落在所需的温度范围内的表面 范围和绝热层,当模具温度为Tc2-100℃以下时,允许在模具腔表面附近的温度保持不低于导出温度的时间,以实现衍生的 提供保留时间。
    • 4. 发明授权
    • Injector protection control method and common rail fuel injection control system
    • 喷油器保护控制方法和共轨燃油喷射控制系统
    • US08577581B2
    • 2013-11-05
    • US12597519
    • 2008-04-23
    • Shinichi HirotaTomonori Watanabe
    • Shinichi HirotaTomonori Watanabe
    • B60T7/12G05D1/00G06F7/00G06F17/00F02B77/08F02M17/30F02D17/00
    • F02D41/3836F02D41/22F02D41/3845F02D2200/0602F02D2200/0606F02D2200/501F02M63/025
    • To reliably prevent a drop in the function of injectors resulting from a rise in the temperature of excess fuel in the injectors without having to add a new part.In a common rail fuel injection control system according to the present invention, when it is determined that an engine rotational speed Ne, a vehicle velocity V and a rail pressure exceed respective predetermined references, the count value of a determining counter is increased (steps S100 to S106), and when it is determined that the engine rotational speed Ne, the vehicle velocity V and the rail pressure do not exceed the respective predetermined references, the count value of the determining counter is decreased (steps S108 to S114), and next, when it is determined (step S116) that the count value of the determining counter exceeds a predetermined protection initiation reference Cs, limitation of the fuel injection amount and the rail pressure and correction of a smoke limit value are performed (see steps S120 to S124) until the count value of the determining counter falls below the predetermined protection initiation reference, whereby injector protection is performed.
    • 为了可靠地防止由于喷射器中多余的燃料的温度升高而引起的喷射器的功能的下降,而不必添加新的部件。 在根据本发明的共轨燃料喷射控制系统中,当确定发动机转速Ne,车速V和轨道压力超过相应的预定参考值时,确定计数器的计数值增加(步骤S100 到S106),并且当确定发动机转速Ne,车速V和轨道压力不超过各个预定参考值时,确定计数器的计数值减小(步骤S108至S114),接下来 ,当确定(步骤S116)确定计数器的计数值超过预定的保护起始基准Cs时,执行燃料喷射量和轨道压力的限制和烟雾极限值的校正(参见步骤S120至S124 )直到确定计数器的计数值下降到预定的保护起始基准以下,由此进行喷射器保护。
    • 6. 发明申请
    • METHOD FOR MANUFACTURING AN INJECTION-MOLDED ARTICLE
    • 注射成型制品的制造方法
    • US20140035200A1
    • 2014-02-06
    • US14003401
    • 2012-02-29
    • Takayuki MiyashitaShinichi Hirota
    • Takayuki MiyashitaShinichi Hirota
    • B29C45/73
    • B29C45/73B29C33/56B29C45/0025B29C45/7207B29C2045/7356B29C2945/76618B29K2081/00B29K2995/0015C08L81/02
    • Provided is a technology that sufficiently suppresses dimensional change in the usage environment even without applying heat treatment in advance to a resin-molded article constituted of a crystalline thermoplastic resin. A resin composition constituted of a crystalline thermoplastic resin is injection-molded using a mold on the inner surface of which a heat-insulating layer is formed. It is preferable, in the present invention, to use a mold on which a heat-insulating layer is formed, the layer being constituted of porous zirconia formed by spraying method and having a thermal conductivity of 2 W/(m·K) or less and a thickness of no less than 200 μm. The injection-molded article obtained by the manufacturing method of the present invention has a dimensional change rate of 0.2% or less when left for 2 hours in an environment of a mold temperature+20° C. where the mold temperature is that at the time of injection molding and is Tg+30° C. or more and Tg+80° C. or less, in which Tg is a glass transition temperature of the crystalline thermoplastic resin.
    • 即使没有对由结晶性热塑性树脂构成的树脂成型品进行预先加热处理,也能充分地抑制使用环境的尺寸变化。 由结晶性热塑性树脂构成的树脂组合物在其内表面上形成有绝热层的模具注射成型。 在本发明中,优选使用形成有绝热层的模具,该层由通过喷涂法形成的导热率为2W /(m·K)以下的多孔氧化锆构成, 厚度不小于200μm。 通过本发明的制造方法获得的注塑制品在模具温度+ 20℃的环境中放置2小时时的尺寸变化率为0.2%以下,其中模具温度为当时的温度 的Tg + 30℃以上,Tg + 80℃以下,Tg是结晶性热塑性树脂的玻璃化转变温度。
    • 8. 发明申请
    • MOLD
    • 模子
    • US20140263943A1
    • 2014-09-18
    • US14342576
    • 2012-08-30
    • Takayuki MiyashitaShinichi Hirota
    • Takayuki MiyashitaShinichi Hirota
    • B29C45/00
    • B29C45/00B29C33/38B29C33/3828B29C45/37B29C2033/023B29K2995/0015
    • Provided is a technology for solving the drawback such as chipping of a heat-insulating layer which is caused by the contact of a heat-insulating layer formed on a first mold with a second mold at the mold parting surface. A mold divided into two or more is provided in which a heat-insulating layer is formed on a substantially entire surface of an inner wall surface of the mold, and the heat-insulating layer does not exist on a mold parting surface. For example, the mold is provided with a first mold occupying a majority of a cavity and a second mold which forms at least a part of the cavity together with the first mold, in which the first mold is provided with a flange part, and a part of a surface of the flange part constitutes a part of the mold parting surface.
    • 提供了一种解决由在模具分型面上与第一模具形成的隔热层与第二模具接触而导致的绝热层的切屑等缺点的技术。 提供分为两个或更多个的模具,其中在模具的内壁表面的大致整个表面上形成绝热层,并且绝热层不存在于模具分型面上。 例如,模具设置有占据空腔的大部分的第一模具和与第一模具一起形成空腔的至少一部分的第二模具,其中第一模具设置有凸缘部分,并且 凸缘部分的表面的一部分构成模具分离表面的一部分。
    • 9. 发明申请
    • MOLD AND METHOD FOR MANUFACTURING MOLD
    • 模具和制造模具的方法
    • US20140217638A1
    • 2014-08-07
    • US14241467
    • 2012-08-30
    • Takayuki MiyashitaShinichi Hirota
    • Takayuki MiyashitaShinichi Hirota
    • B29C45/73
    • B29C45/73B29C33/02B29C33/442B29C45/40B29C2033/023B29C2033/3864
    • Provided is a technology for suppressing, in a mold having a heat-insulating layer formed therein, a problem of chipping of the heat-insulating layer and the like even when a penetrating member is inserted through a through-hole provided in the mold. The mold is provided with a mold body having a convex part on an inner wall surface of the mold body, a heat-insulating layer arranged on the inner wall surface, and a through-hole which penetrates the convex part in a thickness direction of the mold body and through which the penetrating member can be inserted. An outer periphery of the through-hole is inside an outer periphery of a top surface of the convex part. A spacing between the outer periphery of the through-hole on the top surface of the convex part and the outer periphery of the top surface of the convex part is preferably 0.5 mm or less.
    • 在通过设置在模具中的通孔插入穿透构件的情况下,提供了在具有形成有绝热层的模具中抑制绝热层等的问题的技术。 模具设置有在模具体的内壁面上具有凸部的模具体,配置在内壁面上的绝热层,以及贯通孔的厚度方向的凸部的贯通孔 模具主体,并且穿透构件可以穿过其插入。 通孔的外周在凸部的顶面的外周的内侧。 凸部的上表面的通孔的外周与凸部的上表面的外周之间的间隔优选为0.5mm以下。