公开(公告)号：CA2314841C

公开(公告)日：2003-12-09

申请号：CA2314841

申请日：2000-08-02

Applicant: HOYA CORP U S A ,  HOYA CORP

Inventor： JOHNSON ROBERT W ,  HASHIMOTO KAZUAKI ,  YANAGITA HIROAKI

IPC: G02B6/00 ,  C03C3/062 ,  C03C3/078 ,  C03C3/083 ,  C03C3/085 ,  C03C3/087 ,  C03C3/095 ,  G02B1/00 ,  G02B5/20 ,  G02B5/28 ,  G02B6/293 ,  G02B6/34 ,  G02B7/00 ,  H04J14/02 ,  C03C17/34

Abstract: A glass substrate is for use in a WDM optical filter which has an optic al multilayer coated on the glass substrate and is formed by glass which has a composition related to the optical multilayer so as to assure stable multiplexing/demultiplexing operation in the optical filter. The glass includes SiO2 as a glass network-former and has an average linear thermal expansi on coefficient between 100 x 10 -7/K and 130 x 10 -7/K within a temperature ran ge between -30 .degree.C and +70 .degree.C. The glass may include TiO2, Al2O3, and R20(R: alkali metal element) in addition to SiO2 and may have a hardnes s suitable for the optical multilayer.

公开(公告)号：CA2314841A1

公开(公告)日：2001-02-02

申请号：CA2314841

申请日：2000-08-02

Applicant: HOYA CORP U S A ,  HOYA CORP

Inventor： JOHNSON ROBERT W ,  YANAGITA HIROAKI ,  HASHIMOTO KAZUAKI

IPC: G02B6/00 ,  C03C3/062 ,  C03C3/078 ,  C03C3/083 ,  C03C3/085 ,  C03C3/087 ,  C03C3/095 ,  G02B1/00 ,  G02B5/20 ,  G02B5/28 ,  G02B6/293 ,  G02B6/34 ,  G02B7/00 ,  H04J14/02 ,  C03C17/34

Abstract: A glass substrate is for use in a WDM optical filter which has an optic al multilayer coated on the glass substrate and is formed by glass which has a composition related to the optical multilayer so as to assure stable multiplexing/demultiplexing operation in the optical filter. The glass includes SiO2 as a glass network-former and has an average linear thermal expansi on coefficient between 100 x 10 -7/K and 130 x 10 -7/K within a temperature ran ge between -30 .degree.C and +70 .degree.C. The glass may include TiO2, Al2O3, and R20(R: alkali metal element) in addition to SiO2 and may have a hardnes s suitable for the optical multilayer.

公开(公告)号：SG141397A1

公开(公告)日：2008-04-28

申请号：SG2007089352

申请日：2007-09-27

Applicant: HOYA CORP ,  HOYA MAGNETICS SINGAPORE PTE ,  HOYA CORP USA

Inventor： SONOBE YOSHIAKI ,  UMEZAWA TEIICHIRO ,  WAGO KOICHI

Abstract: METHOD FOR MANUFACTURING MAGNETIC RECORDING MEDIUM A method for manufacturing a magnetic recording medium includes the steps of (a) forming a perpendicular magnetic recording layer and (b) applying an ion beam to regions between tracks of the perpendicular magnetic recording layer so as to form separation regions for magnetically separating the tracks from each other. In the step (a), a continuous film layer composed of a multilayer film is formed, and CoB layers and Pd layers are laminated in the multilayer film. In the step (b), the CoB layers and the Pd layers are melted by the ion beam so as to form an alloy of metals contained in the CoB layers and the Pd layers to thereby form the separation regions.

公开(公告)号：AT356093T

公开(公告)日：2007-03-15

申请号：AT00116170

申请日：2000-08-01

Applicant: HOYA CORP ,  HOYA CORP USA

Inventor： JOHNSON ROBERT W ,  YANAGITA HIROAKI ,  HASHIMOTO KAZUAKI

IPC: G02B6/00 ,  C03C3/062 ,  C03C3/078 ,  C03C3/083 ,  C03C3/085 ,  C03C3/087 ,  C03C3/095 ,  G02B1/00 ,  G02B5/20 ,  G02B5/28 ,  G02B6/293 ,  G02B6/34 ,  G02B7/00

Abstract: A glass substrate is for use in a WDM optical filter which has an optical multilayer coated on the glass substrate and is formed by glass which has a composition related to the optical multilayer so as to assure stable multiplexing/demultiplexing operation in the optical filter. The glass includes SiO2 as a glass network-former and has an average linear thermal expansion coefficient between 100 x 10 /K and 130 x 10 /K within a temperature range between -30 DEG C and +70 DEG C. The glass may include TiO2, Al2O3, and R2O(R: alkali metal element) in addition to SiO2 and may have a hardness suitable for the optical multilayer.

公开(公告)号：WO2011139845A3

公开(公告)日：2012-03-22

申请号：PCT/US2011034356

申请日：2011-04-28

Applicant: HOYA CORP USA

Inventor： PASLASKI JOEL S ,  RUIZ ARACELI ,  SERCEL PETER C ,  WYSS ROLF A

IPC: H04B10/18 ,  G02B6/42 ,  H04B10/02

CPC classification number: H04B10/43 ,  G02B6/4246 ,  G02B6/4277 ,  H04B10/40

Abstract: A bidirectional optoelectronic device comprises a photodetector, a light source, and a drive circuit for the light source. The light source has first and second electrical leads for receiving an input electrical signal, and the drive circuit can be arranged to apply first and second portions of the input electrical signal to the first and second electrical leads, respectively, wherein the second portion of the input electrical signal is a scaled, inverted substantial replica of the first portion of the input electrical signal. A protective encapsulant can be applied that includes hollow dielectric microspheres to reduce electrical cross-talk, and that can further include an optical absorber to reduce optical cross-talk. A waveguide substrate of the device can include light collector(s) or trap(s) for redirecting and attenuating portions of optical signals propagating in waveguide layers on the substrate but not guided by a waveguide.

Abstract translation: 双向光电器件包括光电检测器，光源和用于光源的驱动电路。 光源具有用于接收输入电信号的第一和第二电引线，并且驱动电路可以被布置成分别将输入电信号的第一和第二部分施加到第一和第二电引线，其中第二部分 输入电信号是输入电信号的第一部分的缩放的，反向的实质复制品。 可以应用保护性密封剂，其包括中空电介质微球体以减少电串扰，并且还可以包括减少光学串扰的光吸收剂。 器件的波导衬底可以包括用于重定向和衰减在衬底上在波导层中传播但不由波导引导的光信号的部分的光收集器或陷波器。

公开(公告)号：WO2011034037A3

公开(公告)日：2011-05-05

申请号：PCT/JP2010065783

申请日：2010-09-14

Applicant: HOYA CORP ,  NAGAKURA KATSUYA ,  KOGUCHI KATSUYOSHI ,  SUZUKI OSAMU ,  HAYASHI TOMONARI ,  OSAKABE KINOBU ,  ISONO HIDEKI

Inventor： NAGAKURA KATSUYA ,  KOGUCHI KATSUYOSHI ,  SUZUKI OSAMU ,  HAYASHI TOMONARI ,  OSAKABE KINOBU ,  ISONO HIDEKI

IPC: C03B11/08 ,  C03B11/00 ,  C03C19/00 ,  G11B5/73 ,  G11B5/84

CPC classification number: G11B5/8404 ,  C03B11/088

Abstract: A method for making substrates for information recording media from a glass blank which exhibits excellent flatness and inhibits the occurrence of dent traces, even if the processing quantity is reduced by the thinning of the glass blank. Disclosed are a manufacturing method for a glass blank and a glass blank, having a disc-shaped thin part (10), and a thick part (12) provided so as to form projecting sections (12U, 12D) on both surfaces of the thin part (10) and along the peripheral edge thereof. In the diametrical direction of the thin part (10), the width (W1) in the radial direction of the projecting section (12D) on one surface side in the diametrical direction of the thin part is larger than the width (W2) in the radial direction of the projecting section (12U) on the other surface side. Further disclosed are a manufacturing method for a substrate for an information recording medium, and a manufacturing method for an information recording medium, both using said glass blank.

Abstract translation: 即使通过使玻璃毛坯变薄来减少加工量，也能够利用玻璃毛坯制作信息记录介质用基板的方法，该玻璃毛坯具有优异的平坦性，并且能够抑制凹痕的发生。 本发明公开了一种用于玻璃毛坯和玻璃毛坯的制造方法，所述玻璃毛坯和玻璃毛坯具有圆盘状薄部（10）和设置成在所述薄部（10）的两个表面上形成凸出部（12U，12D）的厚部 部分（10）并沿着其周边边缘。 在薄壁部（10）的直径方向上，薄壁部的径向一侧的突起部（12D）的径向的宽度（W1）比薄壁部的宽度（W2） 突出部12U在另一面侧的径向。 还公开了使用所述玻璃坯料的信息记录介质用基板的制造方法以及信息记录介质的制造方法。

公开(公告)号：WO2004059619A3

公开(公告)日：2004-09-23

申请号：PCT/JP0316673

申请日：2003-12-25

Applicant: HOYA CORP ,  MATSUMOTO SEIJI

Inventor： MATSUMOTO SEIJI

IPC: C03C19/00 ,  B24B37/00 ,  B24B37/04 ,  G11B5/73 ,  G11B5/84

CPC classification number: C03C19/00

Abstract: A method for fabricating a glass substrate for information recording media. A uniform texture can be formed in a major surface of the glass substrate without degrading the smoothness of the major surface. The method comprises a step of forming a texture in a major surface of a disk-shaped glass substrate (11a) by lapping the major surface with a lapping member (33) while supplying an abrasive material onto the major surface. In the step, the glass substrate is reciprocated in a radial direction while rotating the glass substrate around its center at a predetermined rotational speed. The rotational speed, the reciprocating speed, and the reciprocation stroke are so determined that the locus of every particle (34) of the abrasive material (34) crosses itself at least at three points.

Abstract translation: 一种制造用于信息记录介质的玻璃基板的方法。 可以在玻璃基板的主表面形成均匀的组织，而不会降低主表面的光滑度。 该方法包括通过在研磨材料供应到主表面上的同时用研磨构件（33）研磨主表面以在盘形玻璃基板（11a）的主表面上形成纹理的步骤。 在该步骤中，使玻璃基板以规定的旋转速度绕玻璃基板的中心旋转，同时使玻璃基板在半径方向上往复移动。 旋转速度，往复速度和往复行程被如此确定，使得研磨材料（34）的每个颗粒（34）的轨迹至少在三个点上交叉。

公开(公告)号：WO03100483A2

公开(公告)日：2003-12-04

申请号：PCT/SG0300127

申请日：2003-05-28

Applicant: HOYA PHOTONICS SINGAPORE PTE L ,  HOYA CORP ,  TAKAHASHI SHIRO ,  SUZUKI HISANORI ,  SI JUNJIE ,  MYINT MYINT AYE ,  ZUO LIPING ,  KONG HSIN YUAN KENNETH ,  WATABE ATUSHI

Inventor： TAKAHASHI SHIRO ,  SUZUKI HISANORI ,  SI JUNJIE ,  MYINT MYINT AYE ,  ZUO LIPING ,  KONG HSIN YUAN KENNETH ,  WATABE ATUSHI

IPC: G02B6/12 ,  G02B6/13 ,  G02B6/34 ,  G02B6/10

CPC classification number: G02B6/12011 ,  G02B6/12007 ,  G02B6/12026 ,  G02B6/13 ,  G02B6/29355

Abstract: A functional optical device has cores which are trenches, different portions of the cores being formed from different core materials. The optical device can be formed by forming trenches 5,7,9 within a substrate (normally a substrate 1 covered by a cladding layer 3), covering at least part of at least one trench 7 with a cover 11, depositing a first cladding material to fill the trenches 5,9 which are not covered, removing the cover 11, depositing a second cladding layer 15 of a second cladding material to fill the trenches 7 which were previously covered, removing core material outside the trenches 5,7,9 and applying a cladding layer to cover the trenches.

Abstract translation: 功能光学器件具有作为沟槽的芯，芯的不同部分由不同的芯材料形成。 光学器件可以通过在衬底（通常由覆盖层3覆盖的衬底1）内形成沟槽5,7,9形成，用覆盖物11覆盖至少一个沟槽7的至少一部分，沉积第一覆层材料 填充未被覆盖的沟槽5,9，去除盖11，沉积第二覆层材料的第二覆层15以填充预先覆盖的沟槽7，去除沟槽5,7,9外的芯材料，以及 施加包层以覆盖沟槽。

公开(公告)号：WO2014163026A8

公开(公告)日：2015-09-03

申请号：PCT/JP2014059379

申请日：2014-03-30

Applicant: HOYA CORP

Inventor： TAWARA YOSHIHIRO

IPC: G11B5/84 ,  B24B37/005 ,  B24B37/11 ,  C03C19/00

CPC classification number: G11B5/8404 ,  B24B37/042 ,  C03C21/002

Abstract: The present invention provides a manufacturing method for magnetic disk glass substrates such that micro-waviness in a range of 50-150 μm in a profile can be reduced. In the present invention, the amount of sinkage into a polishing pad when a circular section of a cylindrical indenter with a diameter of 50 μm is pressed with a load of 2.5 mN from the surface of the polishing pad is measured consecutively on the polishing pad surface in 50 μm intervals at 12 points, and a polishing pad which has a standard deviation of 0.15 μm acquired from data for sinkage amounts for 10 points excluding the largest value and the smallest value of the acquired sinkage amounts is used in the polishing treatment.

Abstract translation: 本发明提供了一种用于磁盘玻璃基板的制造方法，使得可以减小轮廓中的50-150μm范围内的微波纹。 在本发明中，在抛光垫表面上连续地测量直径为50μm的圆柱形压头的圆形部分以2.5mN的载荷被压制在抛光垫中的下沉量， 在12点为50μm间隔，并且在抛光处理中使用从除了最大值和所获得的下沉量的最小值之外的10个点的下沉量的数据获得的具有0.15μm的标准偏差的抛光垫。

公开(公告)号：WO2015046543A1

公开(公告)日：2015-04-02

申请号：PCT/JP2014075966

申请日：2014-09-29

Applicant: HOYA CORP

Inventor： YOSHIKAWA HIRONORI

IPC: B24D11/00 ,  B24D3/00 ,  B24D3/28 ,  G11B5/84

CPC classification number: G11B5/8404 ,  B24B7/228 ,  B24B37/245

Abstract: The present invention provides a method whereby not only the machining speed can be improved during a grinding process utilizing a stationary grinding wheel, but stable grinding can also be enabled. In the present invention, during a grinding process for grinding a main surface of a glass substrate, the main surface of the glass substrate is ground by using a grinding tool that has grinding abrasive grains, a binding material for binding the grinding abrasive grains together, and dispersed grains that are harder than the binding material yet softer than the grinding abrasive grains, wherein the grinding abrasive grains and the dispersed grains are bound together in a dispersed state in the binding material.

Abstract translation: 本发明提供一种方法，其不仅可以在利用固定砂轮的研磨过程中提高加工速度，而且可以实现稳定的研磨。 在本发明中，在研磨玻璃基板的主表面的研磨工序中，通过使用具有研磨磨粒的研磨工具，将研磨磨粒结合在一起的粘结材料研磨玻璃基板的主面， 并且分散的颗粒比所述粘合材料硬，但比研磨磨粒更软，其中研磨磨粒和分散的颗粒以分散状态结合在粘合材料中。