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1. 发明授权

US5667862A Magneto-optical disk 失效
标题翻译：磁光盘
公开(公告)号：US5667862A
公开(公告)日：1997-09-16
申请号：US686287
申请日：1991-04-16
申请人： Yasuaki Nakane , Shuichi Igarashi , Sakuya Tamada , Susumu Sakamoto , Teruo Chiba
发明人： Yasuaki Nakane , Shuichi Igarashi , Sakuya Tamada , Susumu Sakamoto , Teruo Chiba
IPC分类号： G11B11/105 , G11B5/66
CPC分类号： G11B11/10584 , G11B11/10586 , Y10S428/90 , Y10T428/265
摘要： A magneto-optical disk having a four-layer structure formed of a first protective dielectric layer, a recording magnetic layer, a second protective dielectric layer and a reflective metal layer is disclosed. The constraints for the film thicknesses of the various layers are determined not only from the optical and magneto-optical aspects, but from the aspect of the dynamic thermal response.The recording magnetic layer is a magnetic layer mainly formed of TbFeCo and having a film thickness of not less than 180 .ANG. and not more than 280 .ANG.. The first protective dielectric layer is a nitride film having a film thickness such that the product of its refractive index and the film thickness is not less than 0.2 and not more than 0.35 times the wavelength of the laser light employed. The second protective dielectric layer is a nitride film having a film thickness such that the product of its refractive index and the film thickness is not less than 0.1 and not more than 0.15 times the wavelength of the laser light employed. The the reflective metal layer is a metal layer having a film thickness of not less than 500 .ANG. and not more than 1000 .ANG., with the metal being electro-chemically less noble than the material of the recording magnetic layer and having a reflectivity at the boundary with the second protective dielectric material of not less than 70%.
摘要翻译：公开了一种具有由第一保护介电层，记录磁性层，第二保护电介质层和反射金属层形成的四层结构的磁光盘。不仅从光学和磁光学方面，而且从动态热响应的方面来确定各层的膜厚度的限制。记录磁性层是主要由TbFeCo形成的膜层，其膜厚度不小于180，不大于280。第一保护介电层是具有使其折射率和膜厚度的乘积不小于使用的激光的波长的0.2至不超过0.35倍的膜厚度的氮化物膜。第二保护电介质层是具有使其折射率和膜厚度的乘积不小于使用的激光的波长的0.1倍且不超过0.15倍的膜厚度的氮化物膜。反射金属层是膜厚度不小于500和不大于1000的金属层，其中金属在电化学上比记录磁性层的材料更不贵，并且在边界处具有反射率第二保护介电材料不低于70％。

2. 发明授权

US5148285A Image display apparatus with increased raster scan rate of laser beams 失效
标题翻译：具有增加的激光扫描速率的图像显示装置
公开(公告)号：US5148285A
公开(公告)日：1992-09-15
申请号：US452614
申请日：1989-12-15
申请人： Yasuaki Nakane , Senri Miyaoka , Sakuya Tamada , Hiroshi Nakayama , Junichi Iwai , Shuichi Igarashi
发明人： Yasuaki Nakane , Senri Miyaoka , Sakuya Tamada , Hiroshi Nakayama , Junichi Iwai , Shuichi Igarashi
IPC分类号： G02B17/02 , G02B17/08 , G02B26/10 , G02B26/12
CPC分类号： G02B17/023 , G02B26/101 , G02B26/129
摘要： An image display apparatus having light beam sources for generating light beams, an optical modulator for modulating the light beams by image signals to be projected, a deflection device for deflecting the modulated light beams, the deflection device including a polygon mirror and an auxiliary reflection mirror provided near the polygon mirror such that the modulated light beams are reflected from the polygon mirror to said auxiliary reflection means and back toward the polygon mirror, a device for supplying the modulated light beams to the polygon mirror with predetermined angles relative to a rotational plane of the polygon mirror, such that the modulated light beams incident upon the polygon miror are reflected a plurality of times by the polygon mirror, and a projection device for projecting the modulated and deflected light beams from the deflection device on a screen or the like.

3. 发明授权

US5086341A Laser scanning apparatus having two, parallel, acousto optic deflectors for the horizontal scan 失效
标题翻译：具有两个平行扫描器的激光扫描装置，用于水平扫描的ACOUSTO光学偏移器
公开(公告)号：US5086341A
公开(公告)日：1992-02-04
申请号：US579923
申请日：1990-09-07
申请人： Sakuya Tamada , Yasuaki Nakane
发明人： Sakuya Tamada , Yasuaki Nakane
IPC分类号： G02F1/33 , H04N5/74 , H04N9/31
CPC分类号： H04N9/3129 , G02F1/33 , H04N5/7416
摘要： This invention relates to a laser scanning apparatus which raster-scans a laser beam by using an acousto-optic deflector. In this laser scanning apparatus, the laser beam is horizontally scanned by a pair of acousto-optic deflectors. Thus, a laser scanning apparatus can be realized, which is low in noise, excellent in durability, small in size, light in weight and which can display a picture of high quality at high speed.

4. 发明授权

US5044710A Laser beam deflection apparatus 失效
标题翻译：激光束偏转装置
公开(公告)号：US5044710A
公开(公告)日：1991-09-03
申请号：US498948
申请日：1990-03-26
申请人： Junichi Iwai , Yasuaki Nakane , Hiroshi Nakayama , Shuichi Igarashi
发明人： Junichi Iwai , Yasuaki Nakane , Hiroshi Nakayama , Shuichi Igarashi
IPC分类号： G02B26/12 , G02B27/18 , H01S3/101 , H04N3/08
CPC分类号： H04N3/08 , G02B26/129
摘要： A laser beam deflection apparatus is comprised of a polygon mirror having a plurality of reflection surfaces, a laser beam incident on the reflection surfaces of the polygon mirror, and n number of reflection devices positioned in facing relation to the polygon mirror, and aligned in a rotational direction of the polygon mirror for reflecting the laser beam reflected from one of the reflection surfaces back towards the one of the reflection surfaces of the polygon mirror, whereby the laser beam is twice reflected by the one of the reflection surfaces and is deflected through a predetermined angle n times during each predetermined increment of rotation of the plurality of reflection surfaces of the polygon mirror.

5. 发明授权

US4525412A Information recording medium 失效
标题翻译：信息记录介质
公开(公告)号：US4525412A
公开(公告)日：1985-06-25
申请号：US549741
申请日：1983-11-08
申请人： Yasuaki Nakane , Junichi Akamatsu , Susumu Sakamoto , Tadashi Kiyomiya
发明人： Yasuaki Nakane , Junichi Akamatsu , Susumu Sakamoto , Tadashi Kiyomiya
IPC分类号： B41M5/26 , G11B7/24 , G11B7/254 , B32B15/04 , G01D15/34
CPC分类号： G11B7/252 , G11B7/2403 , G11B7/254 , G11B2007/24314 , G11B2007/24316 , G11B2007/25706 , G11B2007/25708 , G11B7/256 , Y10S428/913 , Y10T428/24835 , Y10T428/24917 , Y10T428/31678
摘要： An information recording medium which includes a light-transmitting substrate, a recording layer formed on the substrate, the recording layer having the characteristic of changing an optical characteristic upon heating thereof, together with a protective layer having light-absorbing properties disposed over the recording layer and arranged to absorb light passing through the recording layer upon recording, in combination with a planar layer superimposed on the protective layer and capable of suppressing mechanical deformation of the recording layer.
摘要翻译：一种信息记录介质，包括透光基板，形成在基板上的记录层，具有改变其加热时的光学特性的特性的记录层以及在记录层上设置有具有光吸收特性的保护层并且被布置为在记录时吸收通过记录层的光，与叠加在保护层上的平面层组合并且能够抑制记录层的机械变形。

6. 发明授权

US5140427A Apparatus for displaying an image on a screen 失效
标题翻译：用于在屏幕上显示图像的装置
公开(公告)号：US5140427A
公开(公告)日：1992-08-18
申请号：US450628
申请日：1989-12-14
申请人： Yasuaki Nakane , Hiroshi Nakayama , Susumu Sakamoto
发明人： Yasuaki Nakane , Hiroshi Nakayama , Susumu Sakamoto
IPC分类号： H04N3/08 , H04N3/23 , H04N9/31
CPC分类号： H04N9/3129 , H04N3/08 , H04N3/23
摘要： A display apparatus having a screen, a light beam source for generating light beams, an optical modulator for modulating the light beams in accordance with image signals to be displayed, a scanning apparatus for generating scanning beams of the modulated light beams, a projection apparatus for projecting the scanning beams on the screen, a reference beam source for generating a reference beam to be supplied to the scanning apparatus, a circuit for deriving a scanning reference beam, a circuit for generating timing signals based on the derived scanning reference beams, and a circuit for controlling timings of the image signals to be supplied to the optical modulator.

7. 发明授权

US4785444A Optical recording disc 失效
标题翻译：光记录盘
公开(公告)号：US4785444A
公开(公告)日：1988-11-15
申请号：US16784
申请日：1987-02-20
申请人： Yasuaki Nakane , Kazumine Ito , Sanae Abe , Takashi Naito
发明人： Yasuaki Nakane , Kazumine Ito , Sanae Abe , Takashi Naito
IPC分类号： B29C65/00 , B29C65/08 , G11B7/24 , G11B7/26 , G11B11/10 , G11B11/105 , G11B23/00 , G11B23/113 , G11B5/82 , G11B7/00
CPC分类号： B29C66/474 , B29C65/08 , B29C66/30223 , B29C66/322 , B29C66/73921 , B29C66/8322 , G11B11/10584 , G11B23/0035 , G11B7/24 , G11B7/26 , B29L2017/005
摘要： An optical recording disc in which a disc substrate made of a synthetic resin having a light transmittance and a hub made of a synthetic resin, fixed to a center part of the disc substrate by means of a predetermined technique such as a supersonic wave expansion molding and on which a circular magnetic metal plate is installed by means of an insert molding and so on are provided and a circular groove which is continuous at an outer peripheral side of a fixing part between the disc substrate and hub is furthermore installed on at least either of the disc substrate or hub. The groove is provided for absorbing a stress generated due to a difference in thermal expansion rates between the disc substrate made of the snythetic resin and magnetic metal plate.
摘要翻译：一种光学记录盘，其中由具有透光率的合成树脂制成的盘基片和由合成树脂制成的轮毂，通过诸如超声波膨胀成型的预定技术固定到盘基片的中心部分，在其上通过嵌件成形等安装圆形磁性金属板，并且在盘基板和毂之间的固定部分的外周侧连续的圆形槽还安装在盘基片或轮毂。凹槽被设置用于吸收由由尼龙树脂制成的盘基片和磁性金属板之间的热膨胀率差而产生的应力。

8. 发明授权

US4587533A Information recording media 失效
标题翻译：信息记录媒体
公开(公告)号：US4587533A
公开(公告)日：1986-05-06
申请号：US633519
申请日：1984-07-23
申请人： Yasuaki Nakane , Masataka Kitagawa , Tadashi Kiyomiya , Tetsunosuke Yanada
发明人： Yasuaki Nakane , Masataka Kitagawa , Tadashi Kiyomiya , Tetsunosuke Yanada
IPC分类号： G11B7/24 , G11B7/243 , G01D15/34 , G03C1/78 , G03F7/00
CPC分类号： G11B7/258 , G11B7/243 , G11B7/257 , G11B2007/24314 , G11B2007/24316 , G11B7/2533 , G11B7/2534 , Y10S428/913 , Y10S430/146 , Y10S430/165 , Y10T428/31601 , Y10T428/31605 , Y10T428/31609
摘要： An information recording medium for use with focused laser beams modulated with recorded information signals comprising a substrate having a recording layer composed of at least two layers, the first being formed on the substrate and the second being formed over the first. The substrate and the first layer have the property of high transmittance to laser beams and the second layer is composed of a metal which is predominantly a low melting metal capable of absorbing the laser beams and readily forming an alloy with the material of the first layer, the thickness of the first layer being such that the reflectance of the laser beams entering from the side of the substrate is lowered by the interference effect caused by repetitive multiple reflections. The metal of the second layer is thus alloyed to the first layer due to the focused irradiation of the laser beams from the substrate to the recording layer, changing the conditions for the multiple reflections and changing the reflectance in the recording layer as viewed from the substrate, thereby carrying out the recording of the information.
摘要翻译：一种用于与记录的信息信号一起调制的聚焦激光束的信息记录介质，包括具有由至少两层构成的记录层的基板，第一层形成在基板上，第二层形成在第一层上。基板和第一层具有对激光束透射率高的特性，第二层由主要是能够吸收激光束并容易与第一层材料形成合金的低熔点金属的金属组成，第一层的厚度使得从基板侧进入的激光束的反射率由于重复的多次反射引起的干涉效应而降低。因此，由于从衬底到记录层的激光的聚焦照射，第二层的金属因此合金化到第一层，改变了从多个反射的条件和改变从衬底观察的记录层中的反射率，从而进行信息的记录。

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