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1. 发明授权

US06552966B2 Recording head for optical recording system 失效
标题翻译：光记录系统记录头
公开(公告)号：US06552966B2
公开(公告)日：2003-04-22
申请号：US09951225
申请日：2001-09-13
申请人： Shinya Hasegawa , Wataru Odajima , Fumihiro Tawa , Nobuhide Aoyama
发明人： Shinya Hasegawa , Wataru Odajima , Fumihiro Tawa , Nobuhide Aoyama
IPC分类号： G11B1100
CPC分类号： B82Y10/00 , G11B7/1353 , G11B7/22 , G11B11/10534 , G11B11/10545 , G11B11/10554 , G11B11/10576 , G11B11/1058
摘要： The present invention relates to a recording head for recording information based on an optical magnetic recording system, and has an object of carrying out a high-density recording by reducing the beam diameter of an optical beam irradiated to a recording medium. When an optical beam having a larger diameter than that of the recording head is irradiated, this optical beam is condensed in a light guiding layer. The optical beam is further condensed with a sharp-headed chip. The condensed optical beam is emitted from an emission aperture smaller than the wavelength of the light at the front end of the chip, and irradiated to the recording medium.
摘要翻译：本发明涉及一种用于记录基于光磁记录系统的信息的记录头，其目的是通过减小照射到记录介质上的光束的光束直径进行高密度记录。当照射直径大于记录头直径的光束时，该光束在导光层中会聚。光束与锋利的芯片进一步冷凝。聚光光束从小于芯片前端的光的波长的发射孔射出，并照射到记录介质上。

2. 发明授权

US08481182B2 Magnetic recording medium for thermally assisted magnetic recording 失效
标题翻译：用于热辅助磁记录的磁记录介质
公开(公告)号：US08481182B2
公开(公告)日：2013-07-09
申请号：US12776858
申请日：2010-05-10
申请人： Fumihiro Tawa , Wataru Odajima , Shinya Hasegawa
发明人： Fumihiro Tawa , Wataru Odajima , Shinya Hasegawa
IPC分类号： G11B5/66
CPC分类号： G11B5/667 , G11B5/7325 , G11B5/82 , G11B2005/0021
摘要： A magnetic recording medium used for the thermally assisted magnetic recording system which fires a laser beam at a magnetic recording medium to partially heat the medium and applies a magnetic field from the outside to the part heated to lower the coercivity for recording. The magnetic recording medium is configured by a glass substrate on which a heat radiation layer, heat retention layer, intermediate layer, and recording layer are stacked. Further, the heat retention layer is configured by a member having an effective refractive index lower than the effective refractive index of the recording layer and having an temperature diffusion coefficient determined by the specific heat, density, and heat conductivity rate higher than glass and lower than metal. The material with a high temperature diffusion coefficient is used lowered in temperature diffusion coefficient using a porous structure or granular structure.
摘要翻译：一种用于热辅助磁记录系统的磁记录介质，其在磁记录介质上激发激光束以部分地加热介质并将磁场从外部施加到被加热以降低用于记录的矫顽力的部分。磁记录介质由玻璃基板构成，其上堆叠有散热层，保温层，中间层和记录层。此外，保温层由具有低于记录层的有效折射率的有效折射率的构件构成，并且具有由比玻璃高的比热，密度和导热率确定的温度扩散系数，并且低于金属。使用具有高温扩散系数的材料使用多孔结构或颗粒结构降低温度扩散系数。

3. 发明申请

US20080192616A1 OPTICAL OUTPUT DEVICE, MAGNETIC STORAGE MEDIUM DRIVE UNIT, AND HEAD SLIDER 有权
标题翻译：光输出设备，磁存储介质驱动单元和头滑块
公开(公告)号：US20080192616A1
公开(公告)日：2008-08-14
申请号：US12028567
申请日：2008-02-08
申请人： Fumihiro Tawa , Wataru Odajima , Shinya Hasegawa
发明人： Fumihiro Tawa , Wataru Odajima , Shinya Hasegawa
IPC分类号： G11B7/00
CPC分类号： G11B5/314 , G11B2005/0021
摘要： An optical device includes a clad composed of a material having a first refractive index, a core which is embedded in the clad, composed of a material having a second refractive index different from the first refractive index, and tapers toward the end-point thereof, and a light-transmitting layer which is composed of a material different from the material having the second refractive index and cuts across an optical path at the end-point thereof.
摘要翻译：光学装置包括由具有第一折射率的材料构成的包层，嵌入在包层中的芯，由具有与第一折射率不同的第二折射率的材料构成，并且朝向其端点逐渐变细，以及透光层，其由与具有第二折射率的材料不同的材料构成，并且在其端部横切光路。

4. 发明申请

US20100290148A1 Magnetic recording medium for thermally assisted magnetic recording 失效
标题翻译：用于热辅助磁记录的磁记录介质
公开(公告)号：US20100290148A1
公开(公告)日：2010-11-18
申请号：US12776858
申请日：2010-05-10
申请人： Fumihiro Tawa , Wataru Odajima , Shinya Hasegawa
发明人： Fumihiro Tawa , Wataru Odajima , Shinya Hasegawa
IPC分类号： G11B5/02 , G11B5/66 , G11B5/73
CPC分类号： G11B5/667 , G11B5/7325 , G11B5/82 , G11B2005/0021
摘要： A magnetic recording medium used for the thermally assisted magnetic recording system which fires a laser beam at a magnetic recording medium to partially heat the medium and applies a magnetic field from the outside to the part heated to lower the coercivity for recording. The magnetic recording medium is configured by a glass substrate on which a heat radiation layer, heat retention layer, intermediate layer, and recording layer are stacked. Further, the heat retention layer is configured by a member having an effective refractive index lower than the effective refractive index of the recording layer and having an temperature diffusion coefficient determined by the specific heat, density, and heat conductivity rate higher than glass and lower than metal. The material with a high temperature diffusion coefficient is used lowered in temperature diffusion coefficient using a porous structure or granular structure.
摘要翻译：一种用于热辅助磁记录系统的磁记录介质，其在磁记录介质上激发激光束以部分地加热介质并将磁场从外部施加到被加热以降低用于记录的矫顽力的部分。磁记录介质由玻璃基板构成，其上堆叠有散热层，保温层，中间层和记录层。此外，保温层由具有低于记录层的有效折射率的有效折射率的构件构成，并且具有由比玻璃高的比热，密度和导热率确定的温度扩散系数，并且低于金属。使用具有高温扩散系数的材料使用多孔结构或颗粒结构降低温度扩散系数。

5. 发明申请

US20090097364A1 HEAD SLIDER 审中-公开
标题翻译：头滑块
公开(公告)号：US20090097364A1
公开(公告)日：2009-04-16
申请号：US12199504
申请日：2008-08-27
申请人： Fumihiro Tawa , Wataru Odajima , Shinya Hasegawa
发明人： Fumihiro Tawa , Wataru Odajima , Shinya Hasegawa
IPC分类号： G11B11/00
CPC分类号： G11B5/4866 , G11B5/314 , G11B5/3163 , G11B5/6088 , G11B2005/0005 , G11B2005/0021
摘要： A head slider is used for magnetic record by irradiating a recording medium with tiny spots of light. The head slider includes a slider main body having a bottom surface facing a recording medium and a top surface opposite to the bottom surface, an optical head provided in the slider main body to irradiate the recording medium with light and an optical layer to propagate light supplied from outside and lead the light to the optical head. The optical layer is curved along a curved surface formed in a portion of the slider main body to form a curved propagation path of light.
摘要翻译：通过用微小的光照射记录介质，磁头滑块用于磁记录。磁头滑动器包括具有面向记录介质的底表面和与底表面相对的顶表面的滑块主体，设置在滑块主体中的光学头，用于向记录介质照射光和光学层以传播提供的光从外部引导光线到光头。光学层沿着形成在滑块主体的一部分中的弯曲表面弯曲以形成弯曲的光的传播路径。

6. 发明授权

US08014235B2 Optical output device, magnetic storage medium drive unit, and head slider 有权
标题翻译：光输出装置，磁存储介质驱动单元和磁头滑块
公开(公告)号：US08014235B2
公开(公告)日：2011-09-06
申请号：US12028567
申请日：2008-02-08
申请人： Fumihiro Tawa , Wataru Odajima , Shinya Hasegawa
发明人： Fumihiro Tawa , Wataru Odajima , Shinya Hasegawa
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B2005/0021
摘要： An optical device includes a clad composed of a material having a first refractive index, a core which is embedded in the clad, composed of a material having a second refractive index different from the first refractive index, and tapers toward the end-point thereof, and a light-transmitting layer which is composed of a material different from the material having the second refractive index and cuts across an optical path at the end-point thereof.
摘要翻译：光学装置包括由具有第一折射率的材料构成的包层，嵌入在包层中的芯，由具有与第一折射率不同的第二折射率的材料构成，并且朝向其端点逐渐变细，以及透光层，其由与具有第二折射率的材料不同的材料构成，并且在其端部横切光路。

7. 发明申请

US20090244778A1 HEAD SUSPENSION ASSEMBLY AND CARRIAGE ASSEMBLY 审中-公开
标题翻译：头部悬挂总成和运输组件
公开(公告)号：US20090244778A1
公开(公告)日：2009-10-01
申请号：US12485669
申请日：2009-06-16
申请人： Shin-ya Hasegawa , Wataru Odajima , Fumihiro Tawa , Yoshifumi Mizoshita
发明人： Shin-ya Hasegawa , Wataru Odajima , Fumihiro Tawa , Yoshifumi Mizoshita
IPC分类号： G11B5/60
CPC分类号： G11B5/314 , G11B5/102 , G11B5/3146 , G11B5/3163 , G11B5/3173 , G11B5/4833 , G11B11/10536 , G11B2005/0021
摘要： A head suspension assembly comprising: a head suspension; a head slider having the medium-opposed surface opposed to a storage medium, the head slider having the supported surface received on the head suspension, the supported surface being defined at the farside of the medium-opposed surface; an electromagnetic transducer embedded in the medium-opposed surface of the head slider; a light waveguide incorporated in the head slider, the light waveguide extending from the supported surface to the medium-opposed surface; and an optical element interposed between the supported surface and the head suspension, wherein the optical element defines: a light-collecting surface configured to collect light input into the optical element in parallel with the supported surface; and a light-reflective surface configured to reflect the light at a predetermined angle so as to direct the light to the light waveguide.
摘要翻译：一种头部悬挂组件，包括：头部悬挂; 具有与存储介质相对的介质相对表面的磁头滑块，所述磁头滑块具有容纳在磁头悬架上的支撑表面，所述支撑表面限定在所述介质相对表面的所述边缘处; 嵌入在磁头滑块的介质相对表面中的电磁换能器; 光导波导，其结合在磁头滑块中，所述光波导从所述支撑的表面延伸到所述介质相对表面; 以及插入在所述支撑表面和所述头部悬置之间的光学元件，其中所述光学元件限定：集光表面，其被配置为收集与所述支撑表面平行的入射到所述光学元件中的光; 以及被配置为以预定角度反射光以将光引导到光波导的光反射表面。

8. 发明授权

US06356395B1 Light intensity distribution converting device and optical data storage apparatus 有权
标题翻译：光强分布转换装置和光数据存储装置
公开(公告)号：US06356395B1
公开(公告)日：2002-03-12
申请号：US09365824
申请日：1999-08-03
申请人： Fumihiro Tawa , Shinya Hasegawa
发明人： Fumihiro Tawa , Shinya Hasegawa
IPC分类号： G02B300
CPC分类号： G02B27/0927 , G02B3/0056 , G02B3/0068 , G02B3/04 , G02B27/09 , G02B27/0955 , G11B7/1374 , G11B7/1376 , G11B7/1378 , G11B7/13922 , G11B7/1398
摘要： A light intensity distribution converting device is formed by a transparent body having a first curved surface, a second curved surface, and an outer circumferential surface extending between the first and second curved surfaces. One of first and second surfaces has a concave surface configuration and the other has a convex surface configuration. Diverging light is made incident to the first curved surface, for example. The light intensity distribution of light made incident to the body from first curved surface is different from that of light emerging the body from the second curved surface, due to refractions at the first and second curved surfaces. The light intensity distribution converting device can be used as a collimator lens or an objective lens in an optical data storing apparatus.
摘要翻译：光强分布转换装置由具有第一弯曲表面，第二弯曲表面和在第一和第二弯曲表面之间延伸的外周表面的透明体形成。第一和第二表面中的一个具有凹面构造，另一个具有凸面构造。例如，发散光入射到第一曲面。由于第一和第二曲面处的折射，从第一曲面入射到本体的光的光强度分布与从第二曲面出射的光的光强度分布不同。光强分布变换装置可以用作光学数据存储装置中的准直透镜或物镜。

9. 发明授权

US06201229B1 Light intensity converter 有权
标题翻译：光强转换器
公开(公告)号：US06201229B1
公开(公告)日：2001-03-13
申请号：US09128656
申请日：1998-08-04
申请人： Fumihiro Tawa , Shinya Hasegawa
发明人： Fumihiro Tawa , Shinya Hasegawa
IPC分类号： G02B704
CPC分类号： B23K26/032 , B23K26/06 , B23K26/064 , B23K26/0648 , B23K26/0665 , G02B26/02 , G02B27/09 , G11B7/1378 , G11B7/1381 , G11B7/1398
摘要： The light intensity converter comprises a transparent body including opposite first and second curved surfaces. The body is surrounded by an outer peripheral surface extending between the first and second curved surfaces. The body of the converter is arranged such that the incident light is made incident to the body at the first curved surface and emerges from the second curved surface. The incident light diverges in a certain area and converges in another area, by refraction, so that the light intensity distribution of the incident, first curved surface is converted into a different light intensity distribution while the light travels through the converter, and thus exits from the second curved surface.
摘要翻译：光强转换器包括透明体，其包括相对的第一和第二曲面。主体由在第一和第二弯曲表面之间延伸的外周表面包围。转换器的主体被布置成使得入射光在第一弯曲表面处入射到主体并且从第二弯曲表面出射。入射光在一定范围内发散，通过折射在另一个区域会聚，从而使入射的第一曲面的光强分布转换成不同的光强度分布，同时光线通过转换器，从而从第二个曲面。

10. 发明申请

US20080225673A1 Information recording device and head 审中-公开
标题翻译：信息记录装置和头
公开(公告)号：US20080225673A1
公开(公告)日：2008-09-18
申请号：US12071585
申请日：2008-02-22
申请人： Shinya Hasegawa , Keiji Aruga , Fumihiro Tawa
发明人： Shinya Hasegawa , Keiji Aruga , Fumihiro Tawa
IPC分类号： G11B7/00
CPC分类号： G11B5/314 , G11B5/02 , G11B5/4833 , G11B11/10536 , G11B11/10554 , G11B11/10569 , G11B11/1058 , G11B2005/001 , G11B2005/0021
摘要： In a magnetic recording device, a semiconductor laser (LD) is disposed at a position with a predetermined distance from a swing arm having a slider. The laser beam output from the LD is irradiated, via a beam converter and a mirror, to a spherical aberration lens that generates spherical aberration. The laser beam transmitted through the spherical aberration lens is directed to a light incident opening of the slider at a constant angle (perpendicularly), and then to a position of a recording medium at which information is recorded, thereby performing thermal assist at the magnetic recording time.
摘要翻译：在磁记录装置中，半导体激光器（LD）设置在与具有滑块的摆臂相距预定距离的位置。从LD输出的激光束通过光束转换器和反射镜照射到产生球面像差的球面像差透镜。透过球面像差透镜的激光束以一定的角度（垂直）指向滑块的光入射开口，然后指向记录信息的记录介质的位置，由此在磁记录时进行热辅助时间。

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