公开(公告)号：US07715300B2

公开(公告)日：2010-05-11

申请号：US11684133

申请日：2007-03-09

申请人： Satoshi Kawakita ,  Motoo Aiba ,  Kyu Kanno ,  Jin Sato ,  Takatoshi Yamada

发明人： Satoshi Kawakita ,  Motoo Aiba ,  Kyu Kanno ,  Jin Sato ,  Takatoshi Yamada

IPC分类号： G11B7/00

CPC分类号： G11B7/1374 ,  G02B5/1895 ,  G11B7/1353 ,  G11B2007/0006

摘要： A diffraction element for diffracting a particular wavelength of incident optical beam includes: a base section made from a first resin and provided with a predetermined diffraction pattern; and a cover section made from a second resin and covering the diffraction pattern, wherein a rate of change of refraction index of the first resin is substantially the same as a rate of change of refraction index of the second resin in a temperature range between a first temperature and a second temperature.

摘要翻译： 用于衍射入射光束的特定波长的衍射元件包括：由第一树脂制成并具有预定衍射图案的基部; 以及由第二树脂制成并覆盖衍射图案的覆盖部分，其中第一树脂的折射率变化率与第一树脂的第一树脂之间的温度范围内的第二树脂的折射率变化率基本相同， 温度和第二温度。

公开(公告)号：US20070247996A1

公开(公告)日：2007-10-25

申请号：US11695801

申请日：2007-04-03

申请人： Satoshi Kawakita ,  Motoo Aiba ,  Kyu Kanno ,  Jin Sato ,  Takatoshi Yamada

发明人： Satoshi Kawakita ,  Motoo Aiba ,  Kyu Kanno ,  Jin Sato ,  Takatoshi Yamada

IPC分类号： G11B7/00

CPC分类号： G11B7/1275 ,  G11B7/1353 ,  G11B7/13922 ,  G11B2007/0006

摘要： An optical pickup includes: a light source that emits first, second and third wavelengths of optical beam; and an objective lens unit including a diffraction element whose one surface includes a first diffraction pattern where the first wavelength is diffracted while the second and third wavelengths pass through and whose other surface includes a second diffraction pattern where the second wavelength is diffracted while the first and third wavelengths pass through; and an objective lens that collects the optical beam from the diffraction element, wherein the second and third wavelengths traveling through the objective lens unit are on the optical axis of the objective lens unit while the first wavelength traveling through the objective lens unit have an angle with respect to the optical axis; and the first diffraction pattern is located at a position so as to minimize aberration of the first wavelength of optical beam.

摘要翻译： 光拾取器包括：发射第一，第二和第三波长的光束的光源; 以及物镜单元，其包括衍射元件，所述衍射元件的一个表面包括第一波长衍射的第一衍射图案，而第二和第三波长通过，并且其另一个表面包括第二衍射图案，其中第二波长被衍射， 第三波长通过; 以及从衍射元件收集光束的物镜，其中通过物镜单元行进的第二和第三波长在物镜单元的光轴上，而穿过物镜单元的第一波长与 相对于光轴; 并且第一衍射图案位于使得光束的第一波长的像差最小的位置。

公开(公告)号：US07463430B2

公开(公告)日：2008-12-09

申请号：US11683093

申请日：2007-03-07

申请人： Takatoshi Yamada ,  Satoshi Kawakita ,  Jin Sato ,  Kyu Kanno ,  Motoo Aiba

发明人： Takatoshi Yamada ,  Satoshi Kawakita ,  Jin Sato ,  Kyu Kanno ,  Motoo Aiba

IPC分类号： G02B13/18 ,  G02B5/18 ,  G11B7/00

CPC分类号： G11B7/1374 ,  G02B5/1866 ,  G11B7/1275 ,  G11B7/1353 ,  G11B2007/0006

摘要： The first and second materials of the diffraction element are selected such that the first material's refraction indexes n1(λ1), n1(λ2) and n1(λ3) for the first, second and third wavelengths λ1, λ2 and λ3 and the second material's refraction indexes n2(λ1), n2(λ2) and n2(λ3) for the first, second and third wavelengths λ1, λ2 and λ3 satisfy one of the conditions (1) or (2).

摘要翻译： 选择衍射元件的第一和第二材料，使得第一材料的第一，第二和第三波长λ1，λ2和λ3的折射指数n1（λ1），n1（λ2）和n1（λ3）以及第二材料的折射率 对于第一，第二和第三波长λ1，λ2和λ3的索引n2（λ1），n2（λ2）和n2（λ3）满足条件（1）或（2）中的一个。

公开(公告)号：US20070258345A1

公开(公告)日：2007-11-08

申请号：US11683093

申请日：2007-03-07

申请人： Takatoshi Yamada ,  Satoshi Kawakita ,  Jin Sato ,  Kyu Kanno ,  Motoo Aiba

发明人： Takatoshi Yamada ,  Satoshi Kawakita ,  Jin Sato ,  Kyu Kanno ,  Motoo Aiba

IPC分类号： G11B7/00

CPC分类号： G11B7/1374 ,  G02B5/1866 ,  G11B7/1275 ,  G11B7/1353 ,  G11B2007/0006

摘要： The first and second materials of the diffraction element are selected such that the first material's refraction indexes n1(λ1), n1(λ2) and n1(λ3) for the first, second and third wavelengths λ1, λ2 and λ3 and the second material's refraction indexes n2(λ1), n2(λ2) and n2(λ3) for the first, second and third wavelengths λ1, λ2 and λ3 satisfy one of the conditions (1) or (2).

摘要翻译： 选择衍射元件的第一和第二材料，使得第一材料的折射指数n 1（λ1），n 1（λ2）和n 1（λ3）用于第一，第二和第三波长λ1，λ2 对于第一，第二和第三波长λ1，λ2和λ3，λ3和第二材料的折射指数n 2（λ1），n 2（λ2）和n 2（λ3）满足条件 1）或（2）。

公开(公告)号：US20070230311A1

公开(公告)日：2007-10-04

申请号：US11684133

申请日：2007-03-09

申请人： Satoshi Kawakita ,  Motoo Aiba ,  Kyu Kanno ,  Jin Sato ,  Takatoshi Yamada

发明人： Satoshi Kawakita ,  Motoo Aiba ,  Kyu Kanno ,  Jin Sato ,  Takatoshi Yamada

IPC分类号： G11B7/00

CPC分类号： G11B7/1374 ,  G02B5/1895 ,  G11B7/1353 ,  G11B2007/0006

摘要： A diffraction element for diffracting a particular wavelength of incident optical beam includes: a base section made from a first resin and provided with a predetermined diffraction pattern; and a cover section made from a second resin and covering the diffraction pattern, wherein a rate of change of refraction index of the first resin is substantially the same as a rate of change of refraction index of the second resin in a temperature range between a first temperature and a second temperature.

摘要翻译： 用于衍射入射光束的特定波长的衍射元件包括：由第一树脂制成并具有预定衍射图案的基部; 以及由第二树脂制成并覆盖衍射图案的覆盖部分，其中第一树脂的折射率变化率与第一树脂的第一树脂之间的温度范围内的第二树脂的折射率变化率基本相同， 温度和第二温度。

公开(公告)号：US20070229930A1

公开(公告)日：2007-10-04

申请号：US11690344

申请日：2007-03-23

申请人： Jin Sato ,  Takatoshi Yamada ,  Satoshi Kawakita ,  Kyu Kanno ,  Motoo Aiba

发明人： Jin Sato ,  Takatoshi Yamada ,  Satoshi Kawakita ,  Kyu Kanno ,  Motoo Aiba

IPC分类号： G02B26/08

CPC分类号： G11B7/13922 ,  G11B7/1353 ,  G11B7/22 ,  G11B2007/0006

摘要： A diffraction element includes: an injection-molded transparent first member having two optical surfaces; and a second member firmly attached to one of the optical surfaces of the first member and provided with a first diffraction pattern on a surface, wherein the second member is a first ultraviolet curable resin having a refraction index in a range of ±0.013 with respect to a refraction index of the first member.

摘要翻译： 衍射元件包括：具有两个光学表面的注塑成型透明第一元件; 以及第二构件，其牢固地附接到所述第一构件的一个光学表面并且在表面上设置有第一衍射图案，其中所述第二构件是第一紫外线固化树脂，其折射率在±0.013的范围内，相对于 第一成员的折射率。

公开(公告)号：US06801390B2

公开(公告)日：2004-10-05

申请号：US10171118

申请日：2002-06-13

申请人： Kyu Kanno ,  Yasuo Sugizaki

发明人： Kyu Kanno ,  Yasuo Sugizaki

IPC分类号： G11B5187

CPC分类号： G11B15/62 ,  G11B5/00821 ,  G11B5/10 ,  G11B5/1871 ,  G11B5/4893 ,  G11B15/60

摘要： A stationary head type magnetic recording/reproducing system which includes a magnetic head responsible for recording/reproduction of signal to and from a running magnetic tape, and a pair of guides positioned on both sides of the magnetic head, the magnetic head having a flat slide-contact plane which comes into contact with the magnetic tape, and beveled planes at ends thereof.

摘要翻译： 一种固定磁头型磁记录/再现系统，包括负责将磁信号记录/再现到运行磁带上的磁头和位于磁头两侧的一对导向件，该磁头具有平滑的滑块 与磁带接触的接触面，以及在其端部的斜面。

公开(公告)号：US5909343A

公开(公告)日：1999-06-01

申请号：US783210

申请日：1997-01-14

申请人： Kyu Kanno ,  Kumi Takahashi ,  Toshinobu Watanabe ,  Shinji Takahashi ,  Tadashi Saito ,  Seiichi Ogata ,  Yoshito Ikeda ,  Katsuya Tanba

发明人： Kyu Kanno ,  Kumi Takahashi ,  Toshinobu Watanabe ,  Shinji Takahashi ,  Tadashi Saito ,  Seiichi Ogata ,  Yoshito Ikeda ,  Katsuya Tanba

IPC分类号： G11B5/53 ,  G11B5/56

CPC分类号： G11B5/56

摘要： A magnetic head reduces a slant of a magnetic head chip in comparison with a conventional case. The magnetic head is produced by a manufacturing method. A ridge on a back surface side of a magnetic chip is brought into contact with a chip attachment surface of a chip attachment base. A height of the magnetic head chip is adjusted by using the ridge as a fulcrum.

摘要翻译： 与常规情况相比，磁头减少了磁头芯片的倾斜。 磁头通过制造方法制造。 磁芯的背面侧的脊与芯片安装基座的芯片安装面接触。 通过使用脊作为支点来调节磁头芯片的高度。

公开(公告)号：US07192153B2

公开(公告)日：2007-03-20

申请号：US10835669

申请日：2004-04-30

申请人： Masayoshi Aoshima ,  Kyu Kanno

发明人： Masayoshi Aoshima ,  Kyu Kanno

IPC分类号： F21V33/00

CPC分类号： G02B27/20

摘要： A lens, a light irradiation apparatus and a laser pointer to which the lens is applied to are provided, in which eccentricity, discrepancy of light axes, uneven gap of lens surfaces and the like are reduced without performing positioning of respective lenses; and cost of manufacturing a lens having a plurality of functions can be reduced.A lens according to the present invention is the lens, in which a light diameter expanding element for expanding a diameter of incident light and a light collimating element for projecting approximately collimated light after receiving the incident light having the diameter thereof expanded by the light diameter expanding element are integrally formed in advance as a lens of one unit. According to such lens, it is possible to control occurrence of the eccentricity, the discrepancy of light axes and the uneven gap of lens surfaces due to a positioning discrepancy between respective lenses, in comparison to a lens wherein a lens as the light diameter expanding element and a lens as the light collimating element are individually formed and are combined into one body.

摘要翻译： 提供了一种镜片，光照射装置和应用了透镜的激光指示器，其中偏心率，光轴的偏差，透镜表面的不均匀间隙等减少，而不执行各个透镜的定位; 并且可以降低制造具有多个功能的透镜的成本。 根据本发明的透镜是透镜，其中用于扩大入射光的直径的光径扩大元件和用于在接收到其直径的入射光之后投射大致准直光的光准直元件，该入射光通过光径扩大 元件作为一个单元的透镜预先一体地形成。 根据这种透镜，与其中透镜作为光径扩大元件的透镜相比，可以控制由于各透镜之间的定位差异引起的偏心率，光轴的偏差和透镜表面的不均匀间隙的发生 并且作为光准直元件的透镜分别形成并组合成一体。

公开(公告)号：US06014291A

公开(公告)日：2000-01-11

申请号：US263252

申请日：1994-06-21

申请人： Makoto Watanabe ,  Seiichi Ogata ,  Yoshito Ikeda ,  Kyu Kanno

发明人： Makoto Watanabe ,  Seiichi Ogata ,  Yoshito Ikeda ,  Kyu Kanno

IPC分类号： G11B5/008 ,  G11B5/09 ,  G11B5/115 ,  G11B5/127 ,  G11B5/29 ,  G11B5/48 ,  G11B5/53 ,  G11B23/00 ,  G11B5/265

CPC分类号： G11B5/29 ,  G11B5/115 ,  G11B5/127 ,  G11B5/1272 ,  G11B5/4893 ,  G11B5/531 ,  G11B5/534 ,  G11B23/0007 ,  G11B5/0086 ,  G11B5/09

摘要： A magnetic head includes a first magnetic core half having a coil winding groove coupled to a second magnetic core half having an auxiliary core element accommodated in the coil winding groove, such that a magnetic gap is defined between joining faces of the first and second core halves. Alternatively, a composite magnetic head includes a pair of magnetic heads that have magnetic gaps with different azimuth angles from each other and disposed closely in an opposing relationship to each other in a head feeding direction so as to define respective track widths and a track pitch. A thin conductor film is formed on at least one of a pair of opposing faces of the magnetic heads for intercepting leakage fluxes from the magnetic gap of the other magnetic head. The thin conductor film has a thickness and is located such that the track pitch formed by the magnetic heads is substantially independent of the thickness of the thin conductor film. A method of producing a magnetic head includes forming a track width restricting groove on each of a pair of head core blocks. The blocks are fused together with glass when aligned with the restricting groove. An additional groove is formed at an angle substantially equal to the azimuth angle of the magnetic gap on at least one of the pairs of faces on the blocks and the blocks are cut in a direction substantially perpendicular to the bottom face of the additional groove.

摘要翻译： 磁头包括第一磁芯半部，其具有耦合到具有容纳在线圈绕组槽中的辅助芯体的第二磁芯半部的线圈绕组槽，使得在第一和第二芯半部的接合面之间限定磁隙 。 或者，复合磁头包括一对磁头，它们具有彼此不同的方位角的磁隙，并且在磁头输送方向上以彼此相对的关系紧密地设置，以便限定相应的磁道宽度和磁道间距。 在磁头的一对相对面中的至少一个上形成薄导体膜，用于截取来自另一个磁头的磁隙的漏磁通。 薄导体膜具有厚度并且被定位成使得由磁头形成的轨道间距基本上与薄导体膜的厚度无关。 一种制造磁头的方法包括在一对磁头芯块的每一个上形成磁道宽度限制槽。 当与限制槽对准时，这些块与玻璃熔合在一起。 以与块上的至少一对面上的磁隙的方位角大致相等的角度形成附加的槽，并且在基本上垂直于附加槽的底面的方向上切割块。