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    • 41. 发明授权
    • Polycarbonate resin composition and process for producing the same
    • 聚碳酸酯树脂组合物及其制造方法
    • US5510414A
    • 1996-04-23
    • US389978
    • 1995-02-14
    • Masaya OkamotoJiro Chiba
    • Masaya OkamotoJiro Chiba
    • C08K3/40C08L69/00
    • C08K3/40C08L69/00
    • The object of the present invention is to develop a polycarbonate resin composition excellent in transparency and flame retardance and a process for producing the same.The present invention relates to a polycarbonate resin composition which comprises (A) polycarbonate-based copolymer, (B) glass, and (C) polycarbonate resin, the difference (absolute value) between the refractive index of the mixed resin of (A) and (C), and that of (B) glass being not more than 0.01.The present invention also relates to a process for producing a polycarbonate-based resin composition which comprises kneading (A) polycarbonate-based copolymer, (B) glass, and (C) polycarbonate resin, and adjusting the difference (absolute value) between the refractive index of the mixed resin of (A) and (C), and that of glass to not more than 0.01, by selecting kinds and proportions of the comonomer unit in (A) polycarbonate-based copolymer.The polycarbonate resin composition of the present invention is excellent in transparency and flame retardance, and effectively utilized as the material for various molding products which are extensively used in the fields of electric or electronic appliances and cars.
    • 本发明的目的是开发透明性和阻燃性优异的聚碳酸酯树脂组合物及其制造方法。 本发明涉及一种聚碳酸酯树脂组合物,其包含(A)聚碳酸酯类共聚物,(B)玻璃和(C)聚碳酸酯树脂,(A)的混合树脂的折射率与(A)的混合树脂的折射率 (C),(B)玻璃的含量不大于0.01。 本发明还涉及一种聚碳酸酯类树脂组合物的制造方法,其包括捏合(A)聚碳酸酯类共聚物,(B)玻璃和(C)聚碳酸酯树脂,并调节折射率 通过选择(A)聚碳酸酯类共聚物中的共聚单体单元的种类和比例,将(A)和(C)的混合树脂和玻璃的混合树脂的指数变为不大于0.01。 本发明的聚碳酸酯树脂组合物的透明性和阻燃性优异,并且有效地用作广泛用于电动或电子电器和汽车领域的各种成型产品的材料。
    • 42. 发明授权
    • Printing head device
    • 打印头设备
    • US5413421A
    • 1995-05-09
    • US216024
    • 1994-03-21
    • Masaya Okamoto
    • Masaya Okamoto
    • B41J2/275B41J2/27
    • B41J2/275
    • A printing head device according to the present invention includes a plurality of printing pins corresponding to respective dots, a plurality of first pin drive plates having the printing pins fixed thereon and having surfaces on which first electrodes are formed, a plurality of second pin drive plates having second electrodes opposing to the first electrodes with predetermined gaps therebetween, a first drive plate support member for supporting the first pin drive plates through elastic members, respectively, and a second drive plate support member for supporting the second pin drive plates. Further, the second drive plate support member is vibrated repeatedly in a direction toward a top end of the printing pin by a drive unit. A drive circuit applies a voltage based on a printing signal between the first and second electrodes of the first and second pin drive plates with the vibration timing of the drive unit to generate Coulomb force between the first and second electrodes. With this construction, it is possible to enable the printing pins to perform a print by a single drive unit and to miniaturize the printing head.
    • 根据本发明的打印头装置包括对应于各个点的多个打印销,多个第一销驱动板,其中印刷销固定在其上并具有形成有第一电极的表面,多个第二销驱动板 具有与其间具有预定间隙的与第一电极相对的第二电极,用于分别通过弹性构件支撑第一销驱动板的第一驱动板支撑构件和用于支撑第二销驱动板的第二驱动板支撑构件。 此外,第二驱动板支撑构件通过驱动单元在朝向打印销的顶端的方向上重复地振动。 驱动电路利用驱动单元的振动定时在第一和第二引脚驱动板的第一和第二电极之间施加基于打印信号的电压,以在第一和第二电极之间产生库仑力。 利用这种结构,可以使打印针由单个驱动单元执行打印并使打印头小型化。
    • 45. 发明授权
    • Novel polycarbonate resins, process for production of said resins, and
compositions containing said resins
    • 新型聚碳酸酯树脂,所述树脂的制造方法和含有所述树脂的组合物
    • US5037937A
    • 1991-08-06
    • US294906
    • 1989-01-06
    • Takashi KomatsuMasaya Okamoto
    • Takashi KomatsuMasaya Okamoto
    • C08G64/08C08G64/10C08K7/14
    • C08G64/10C08G64/081C08K7/14
    • Novel polycarbonate resins, a process for production of said polycarbonate resins, and compositions containing said polycarbonate resins and glass fibers as major components are disclosed. The polycarbonate resins have: (1) a repeating unit (I) represented by the general formula (A): ##STR1## and a repeating unit (II) represented by the general formula ##STR2## (all the symbols are as defined in the appended claims); (2) a pentahalogenophenoxy group as the end group thereof; and (3) a viscosity average molecular weight of at least 5,000. The polycarbonate resins are excellent in all of flame retardance, fluidity, impact resistance and transparency. Thus the polycarbonate resins and compositions containing them are useful for production of, e.g., moldings for which all the above characteristics are required.
    • 公开了新型聚碳酸酯树脂,所述聚碳酸酯树脂的制造方法和含有所述聚碳酸酯树脂和玻璃纤维作为主要成分的组合物。 聚碳酸酯树脂具有:(1)由通式(A)表示的重复单元(I):< IMAGE>和由通式< IMAGE>表示的重复单元(II)(所有符号如 所附权利要求); (2)五卤代苯氧基作为其末端基团; 和(3)粘均分子量至少为5,000。 聚碳酸酯树脂具有优异的阻燃性,流动性,耐冲击性和透明性。 因此,含有它们的聚碳酸酯树脂和组合物可用于生产例如需要所有上述特征的模制品。
    • 48. 发明授权
    • Belt unit and image forming device equipped therewith
    • 皮带单元和配备的图像形成装置
    • US08346139B2
    • 2013-01-01
    • US12610637
    • 2009-11-02
    • Masaya Okamoto
    • Masaya Okamoto
    • G03G15/01
    • G03G15/0131G03G2215/0193
    • There is provided a belt unit including: a fixed frame at which a transfer roller is provided; plural fixed side supporting rollers provided at the fixed frame; a movable frame that is swingably mounted to the fixed frame, and at which plural transfer rollers are provided; a movable side supporting roller provided at the movable frame; and an endless belt stretched around the fixed side supporting rollers and the movable side supporting roller, and contacting the transfer roller provided at the fixed frame and the transfer rollers supported at the movable frame, and contacting plural photoreceptor drums, wherein a swinging center of the movable frame is a center of belt portions at both sides of the swinging center, and in a monochrome mode, the movable frame is swung and moves the belt away from the photoreceptor drums other than the photoreceptor drum that is used in the monochrome mode.
    • 提供了一种带单元,包括:设置转印辊的固定框架; 设置在固定框架上的多个固定侧支撑辊; 可移动的框架,其可摆动地安装到所述固定框架,并且设置有多个转印辊; 设置在所述可动框架的可动侧支撑辊; 以及围绕固定侧支撑辊和可动侧支撑辊延伸的环形带,并且使设置在固定框架处的转印辊与支撑在可动框架上的转印辊接触,并接触多个感光鼓,其中, 可动框架是摆动中心两侧的皮带部分的中心,并且在单色模式中,可移动框架摆动并使皮带远离除了在单色模式中使用的感光鼓之外的感光鼓。