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    High strength spring steel and steel wire
    7.
    发明授权
    High strength spring steel and steel wire 有权

    公开(公告)号：US10131973B2

    公开(公告)日：2018-11-20

    申请号：US11630222

    申请日：2005-11-30

    申请人： Masayuki Hashimura ,  Hiroshi Hagiwara ,  Takanori Miyaki ,  Takayuki Kisu ,  Kouichi Yamazaki

    发明人： Masayuki Hashimura ,  Hiroshi Hagiwara ,  Takanori Miyaki ,  Takayuki Kisu ,  Kouichi Yamazaki

    IPC分类号： C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/22 ,  C22C38/28 ,  C21D8/06 ,  C21D9/52

    摘要： The present invention provides spring steel used for spring steel wire achieving both high strength and cold coilability and spring steel wire, that is, spring steel containing, by mass %, C: 0.45 to 0.70%, Si: 1.0 to 3.0%, Mn: 0.05 to 2.0%, P: 0.015% or less, S: 0.015% or less, N: 0.0015 to 0.0200%, and t-O: 0.0002 to 0.01 and further limiting Al≤0.01% and Ti≤0.003%. Further, it is characterized by satisfying the following regarding the cementite-based spherical carbides present at an observed plane, an occupied area ratio of grains with a circle equivalent diameter of 0.2 μm or more of 7% or less, a density of presence of grains with a circle equivalent diameter of 0.2 to 3 μm of 1/μm2 or less, and a density of presence of grains with a circle equivalent diameter 3 μm or more of 0.001/μm2 or less, having an prior austenite grain size number of #10 or higher and a residual austenite of 15 mass % or less, and having an area ratio of poor regions with a small density of presence of cementite-based carbides of a circle equivalent diameter of 2 μm or more of 3% or less.

    PORTABLE TERMINAL DEVICE, IMAGE DISPLAY METHOD USED FOR SAME, AND RECORDING MEDIUM TO RECORD PROGRAM FOR SAME
    8.
    发明申请
    PORTABLE TERMINAL DEVICE, IMAGE DISPLAY METHOD USED FOR SAME, AND RECORDING MEDIUM TO RECORD PROGRAM FOR SAME 有权
    便携式终端设备，用于其的图像显示方法，以及记录用于记录程序的介质

    公开(公告)号：US20110169865A1

    公开(公告)日：2011-07-14

    申请号：US13119046

    申请日：2009-09-15

    申请人： Hiroshi Hagiwara

    发明人： Hiroshi Hagiwara

    IPC分类号： G06T3/60

    CPC分类号： G06F1/162 ,  G06F3/0346 ,  G06F2200/1614 ,  H04M1/72519 ,  H04M2250/22

    摘要： Provided are a portable terminal device, an image display method used for same and a recording medium to record a program for same that enable display of images suitable for various forms of use, such as when the screen orientation or input operation is changed, and display of information pertaining to the images. The portable terminal device can make changes for multiple forms of use and has detection means for detecting a change in the form of use, and changing means for changing the method to be used to display image-related information on a display screen according to the detection result by the detection means.

    摘要翻译： 提供了一种便携式终端装置，用于其的图像显示方法和用于记录适合于各种形式的图像的图像的程序的记录介质，例如当屏幕取向或输入操作改变时，显示 关于图像的信息。 便携式终端装置可以对多种使用形式进行变更，并且具有用于检测使用形式的变化的检测装置，以及用于根据检测改变用于在显示画面上显示图像相关信息的方法的改变装置 由检测装置产生。

    High strength spring-use heat treated steel
    10.
    发明申请
    High strength spring-use heat treated steel 审中-公开
    高强度弹簧使用热处理钢

    公开(公告)号：US20090205753A1

    公开(公告)日：2009-08-20

    申请号：US11918997

    申请日：2007-03-29

    申请人： Masayuki Hashimura ,  Tatsurou Ochi ,  Takayuki Kisu ,  Hiroshi Hagiwara

    发明人： Masayuki Hashimura ,  Tatsurou Ochi ,  Takayuki Kisu ,  Hiroshi Hagiwara

    IPC分类号： C22C38/02

    CPC分类号： C21D9/525 ,  C21D1/25 ,  C21D2211/008 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/52 ,  C22C38/54 ,  C22C38/60 ,  Y02P10/212

    摘要： The present invention provides spring-use heat treated steel which is cold coiled, can achieve both sufficient atmospheric strength and coiling workability, has a tensile strength of 2000 MPa or more, and can improve the performance as a spring by heat treatment after shaping the spring, that is, heat treated steel for high strength spring containing, by mass %, C: 0.45 to 0.9%, Si: 1.0 to 3.0%, Mn: 0.1 to 2.0%, V: over 0.1 to 1.0%, N: limited to 0.007% or less, and a balance of Fe and unavoidable impurities, and satisfying, in terms of the analyzed value of the extracted residue after heat treatment, [amount of V in filtrate filtered by 0.2 μm filter (mass %)]≧[amount of V in steel (mass %)]×0.4.

    摘要翻译： 本发明提供一种冷卷绕弹簧用热处理钢，能够获得足够的大气强度和卷取加工性，拉伸强度为2000MPa以上，并且能够在成形弹簧后通过热处理提高作为弹簧的性能 即，以质量％计含有C：0.45〜0.9％，Si：1.0〜3.0％，Mn：0.1〜2.0％，V：0.1〜1.0％以下的高强度弹簧用热处理钢，N：限于 0.007％以下，余量由Fe和不可避免的杂质构成，从热处理后的提取残渣的分析值来看，[0.2μm过滤器过滤的滤液中的V量（质量％）] = [ 钢中V含量（质量％）]×0.4。