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12 条记录 (耗时 0.03 秒)

    Magnetic coated recording medium and method of manfacturing the same
    4.
    发明授权
    Magnetic coated recording medium and method of manfacturing the same 失效
    磁性涂层记录介质及其制造方法

    公开(公告)号：US5028496A

    公开(公告)日：1991-07-02

    申请号：US263770

    申请日：1988-10-28

    申请人： Yasutaro Uesaka ,  Hajime Fukke ,  Katsuyoshi Chiba ,  Iwao Matsuyama

    发明人： Yasutaro Uesaka ,  Hajime Fukke ,  Katsuyoshi Chiba ,  Iwao Matsuyama

    IPC分类号： G11B5/70 ,  G11B5/845

    CPC分类号： G11B5/70 ,  G11B5/845 ,  Y10S428/90

    摘要： The present invention proposes a ratio of an applied field H.sub.s to a coercivity H.sub.c as a parameter which gives an influence to the write/read characteristics of a magnetic coated recording medium, especially, a reproduction output E.sub.o at a low recording density and a recording density D.sub.50 which provides an output of the half of E.sub.o. By selecting the ratio H.sub.s /H.sub.c to be not larger than 2.1, a magnetic coated recording medium having large values of E.sub.o and D.sub.50 or suited to a high density magnetic recording can be provided with good reproducibility.

    摘要翻译： 本发明提出了施加磁场Hs与矫顽磁力Hc的比值作为影响磁性涂覆记录介质的写入/读取特性的参数，特别是在低记录密度下的再现输出Eo和记录密度 D50提供了一半的输出。 通过选择Hs / Hc的比例不大于2.1，可以提供具有大的Eo和D50值或适用于高密度磁记录的磁性涂层记录介质，具有良好的再现性。

    Method for producing optical glass
    5.
    发明授权
    Method for producing optical glass 失效
    光学玻璃的制造方法

    公开(公告)号：US4324576A

    公开(公告)日：1982-04-13

    申请号：US209711

    申请日：1980-11-21

    申请人： Iwao Matsuyama ,  Kenzo Susa ,  Shin Satoh ,  Tsuneo Suganuma

    发明人： Iwao Matsuyama ,  Kenzo Susa ,  Shin Satoh ,  Tsuneo Suganuma

    IPC分类号： C01B33/16 ,  C03B8/02 ,  C03B19/12 ,  C03B37/016 ,  C03C3/04 ,  C03C13/04 ,  C03C3/06

    CPC分类号： C01B33/163 ,  C03B19/12 ,  C03B37/016 ,  C03C13/045 ,  C03C3/04 ,  Y02P40/57 ,  Y10S65/901

    摘要： A method for producing optical glass, which comprises charging a mixed solution capable of forming a high-silica-content gel by hydrolysis reaction into a vessel, the inner wall face of which is composed of a material unwettable to the mixed solution, such as a fluorocarbon resin or silicone resin, causing gelation of the mixed solution in the vessel, drying the obtained gel, and heating and sintering the obtained dry gel. When electrodes are placed in the mixed solution at the gelation step and an electric voltage is applied, the time required for formation of the gel is shortened. Furthermore, at the gel-drying step, if the amount of materials evaporated from the gel is detected or the weight of the gel is measured, the detected amount of the evaporated materials or the change of the weight of the gel is fed back to a factor regulating the drying speed, such as the drying temperature to control the drying speed to an appropriate level.

    摘要翻译： 一种光学玻璃的制造方法，其特征在于，将能够通过水解反应形成高二氧化硅含量凝胶的混合溶液装入容器内，该容器的内壁面由不能混合的溶液的材料构成， 氟树脂或有机硅树脂，使混合溶液凝胶化，容器干燥，加热烧结得到的干凝胶。 当在凝胶化步骤中将电极置于混合溶液中并施加电压时，形成凝胶所需的时间缩短。 此外，在凝胶干燥步骤中，如果检测到从凝胶蒸发的材料的量或测量凝胶的重量，则将检测到的蒸发材料量或凝胶重量的改变反馈至 调节干燥速度的因素，如干燥温度，将干燥速度控制在适当的水平。

    Method for producing optical fiber preform
    7.
    发明授权
    Method for producing optical fiber preform 失效
    光纤预制棒的制造方法

    公开(公告)号：US4259101A

    公开(公告)日：1981-03-31

    申请号：US17025

    申请日：1979-03-02

    申请人： Yasuo Tsukuda ,  Katsuyuki Imoto ,  Kenzo Susa ,  Iwao Matsuyama ,  Tsuneo Suganuma

    发明人： Yasuo Tsukuda ,  Katsuyuki Imoto ,  Kenzo Susa ,  Iwao Matsuyama ,  Tsuneo Suganuma

    IPC分类号： C03B37/018 ,  C03B37/014 ,  G02B6/00 ,  C03C25/02 ,  C03B37/02

    CPC分类号： C03B37/01406

    摘要： A method for producing an optical fiber preform comprising the steps of blowing, through at least one nozzle, gaseous material producing glass material soot by a CVD reaction to permit the glass material soot to be deposited on a target to produce a soot rod which grows in size, and heating and rendering transparent the soot rod produced in the first step, wherein a pipe is arranged substantially concentrically with the glass material soot so as to permit gas to flow through a clearance between the deposited glass material soot and the inner wall surface of the pipe in a direction in which the soot rod grows in size. The method makes it possible to prevent the outer peripheral portion of the soot rod from becoming porous and to satisfactorily control the diameter of the soot rod.

    摘要翻译： 一种制造光纤预制棒的方法，包括以下步骤：通过至少一个喷嘴吹送通过CVD反应产生玻璃材料烟灰的气态材料，以允许玻璃材料烟灰沉积在目标上以产生烟炱棒，其生长在 尺寸和加热并使第一步骤中产生的烟灰杆透明，其中管道与玻璃材料烟灰基本上同心地布置，以允许气体流过沉积的玻璃材料烟灰和内壁表面之间的间隙 管子在烟炱杆生长的方向上。 该方法可以防止烟炱杆的外周部变得多孔，并且令人满意地控制烟炱杆的直径。

    Method for producing silica glass
    10.
    发明授权
    Method for producing silica glass 失效
    石英玻璃生产方法

    公开(公告)号：US4317668A

    公开(公告)日：1982-03-02

    申请号：US226876

    申请日：1981-01-21

    申请人： Kenzo Susa ,  Iwao Matsuyama ,  Shin Satoh ,  Tsuneo Suganuma

    发明人： Kenzo Susa ,  Iwao Matsuyama ,  Shin Satoh ,  Tsuneo Suganuma

    IPC分类号： C03B8/02 ,  C03B19/12 ,  C03B20/00 ,  C03B37/014 ,  C03B37/016 ,  C03C3/06 ,  G02B6/00 ,  C03B19/06 ,  C01B33/12

    CPC分类号： C03B19/12 ,  C03B37/016 ,  C03C3/06 ,  C03C2201/02 ,  C03C2203/26 ,  C03C2203/50 ,  Y10S65/901

    摘要： A method for producing silica glass wherein a dry silica gel subjected to a water desorption treatment and a carbon removal treatment is heated and has its temperature raised in an atmosphere containing chlorine, to perform a hydroxyl group removal treatment, the resultant silica gel is thereafter heated to a temperature of approximately 1,000.degree. C.-1,100.degree. C. in an atmosphere containing at least 1% of oxygen, to perform a chlorine removal treatment, and the resultant silica gel is further heated to a temperature of 1,050.degree. C.-1,300.degree. C. in He or in vacuum, to perform a sintering treatment. The silica glass thus produced does not form bubbles even when heated to high temperatures of or above 1,300.degree. C. Therefore, it is easily worked and it is free from the lowering of transparency attributed to the bubble formation.

    摘要翻译： 将经过水解吸处理和除碳处理的干燥硅胶加热并在含氯气氛中升温的硅石玻璃的制造方法进行羟基去除处理，然后将所得硅胶加热 在含有至少1％氧气的气氛中温度为约1000℃-111℃，进行除氯处理，所得硅胶进一步加热至1050℃-1.300℃ 在He中或在真空中进行烧结处理。 即使加热到1300℃以上的高温，这样制造的石英玻璃也不会形成气泡。因此，容易加工，并且不会降低由于气泡形成引起的透明度。