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1. 发明授权

US07136409B2 Semiconductor laser device and optical pickup device 失效
标题翻译：半导体激光器件和光学拾取器件
公开(公告)号：US07136409B2
公开(公告)日：2006-11-14
申请号：US10812317
申请日：2004-03-30
申请人： Masahiro Ikehara , Katsushige Masui , Kazuhiro Tsuchida , Keiji Sakai
发明人： Masahiro Ikehara , Katsushige Masui , Kazuhiro Tsuchida , Keiji Sakai
IPC分类号： H01S3/08 , G11B7/12
CPC分类号： G11B7/1353 , G02B27/106 , G02B27/1086 , G02B27/145 , G02B27/283 , G11B7/123 , G11B7/131 , G11B7/1381 , H01S5/02212 , H01S5/02248 , H01S5/02296
摘要： In this semiconductor laser device, a polarization hologram transmits an outgoing beam directed from a semiconductor laser chip to an optical disk as a forward beam without diffracting the beam, and diffracts a backward beam of the laser beam, which is a return beam of the forward beam that has been reflected by the optical disk, so that the backward beam is deflected from a direction directed toward the semiconductor laser chip part and further directed toward first, second photoreception parts. Therefore, optical loss on the forward way from the semiconductor laser chip to the optical disk can be reduced, and return light to the semiconductor laser chip can be suppressed, so that a high-power, high-sensitivity semiconductor laser device can be realized.
摘要翻译：在该半导体激光器件中，偏振全息图将来自半导体激光器芯片的出射光束作为前向光束传输到光盘而不衍射光束，并且衍射作为向前的返回光束的激光束的反向光束光束被反射的光束，使得反射光束从朝向半导体激光器芯片部分的方向偏转并进一步朝向第一，第二光接收部分。因此，可以减少从半导体激光器芯片向光盘的正向移动的光损耗，并且可以抑制向半导体激光器芯片的返回光，从而可以实现高功率，高灵敏度的半导体激光器件。

2. 发明申请

US20120063281A1 SEMICONDUCTOR LASER DEVICE, OPTICAL PICKUP APPARATUS, AND METHOD OF MANUFACTURING SEMICONDUCTOR LASER DEVICE 有权
标题翻译：半导体激光器件，光学拾取器件和制造半导体激光器件的方法
公开(公告)号：US20120063281A1
公开(公告)日：2012-03-15
申请号：US13228222
申请日：2011-09-08
申请人： Shinzoh MURAKAMI , Mototaka Taneya , Takahide Ishigro , Katsushige Masui , Satoru Fukumoto , Takeshi Horiguchi
发明人： Shinzoh MURAKAMI , Mototaka Taneya , Takahide Ishigro , Katsushige Masui , Satoru Fukumoto , Takeshi Horiguchi
IPC分类号： G11B7/125 , H01L21/68 , G02B27/42
CPC分类号： G11B7/1353 , G11B7/1275
摘要： In a diffractive element, its grating pattern is so configured that a diffraction angle of a diffracted light beam of a light source that is subject to the first-order diffraction in a diffraction area is matched with an angle of a light beam passing through the diffractive area emitted from a light source and a light source position is matched with a light originating point of the light source that emits a light beam to be transmitted, and the center of light intensity distribution is matched with that of the light source passing through the diffractive element by inclining an optical axis of the light source. A position of the diffractive element is adjusted based on an electric current value generated when a reflected return path light beam of the light source is diffracted by the diffractive element and enters the light source.
摘要翻译：在衍射元件中，其光栅图案被配置为使得衍射区域中经受一次衍射的光源的衍射光束的衍射角与通过衍射的光束的角度相匹配从光源和光源位置发射的区域与发射要透射的光束的光源的发光点相匹配，并且光强度分布的中心与通过衍射的光源的光中心匹配元件通过倾斜光源的光轴。基于当光源的反射返回路径光束被衍射元件衍射并进入光源时产生的电流值来调节衍射元件的位置。

3. 发明授权

US5557116A Semiconductor laser device and resin layer 失效
标题翻译：半导体激光器件和树脂层
公开(公告)号：US5557116A
公开(公告)日：1996-09-17
申请号：US178399
申请日：1993-12-22
申请人： Katsushige Masui , Nobuyuki Miyauchi , Zenpei Tani , Hiroshi Chikugawa , Makoto Tsuji , Masaru Ogawa , Takehiro Shiomoto
发明人： Katsushige Masui , Nobuyuki Miyauchi , Zenpei Tani , Hiroshi Chikugawa , Makoto Tsuji , Masaru Ogawa , Takehiro Shiomoto
IPC分类号： H01S5/022 , H01L33/00 , H01S3/18
CPC分类号： H01S5/02244 , H01L24/97 , H01L2224/45144 , H01L2224/48091 , H01L2224/48247 , H01S2301/176 , H01S5/02228 , H01S5/0683
摘要： A semiconductor laser device includes a base, a semiconductor laser chip and a resin layer enclosing the laser chip. The base may have a monitor photodiode mounted thereon in the vicinity of the laser chip. The resin layer enclosing the laser chip or both of the laser chip and the monitor diode chip is made of a single synthetic resin having a thickness not greater than 500 .mu.m and also having a surface substantially parallel to an outwardly oriented beam emitting end face of the laser chip.
摘要翻译：半导体激光装置包括基底，半导体激光芯片和包围激光芯片的树脂层。基座可以在激光芯片附近具有安装在其上的监视器光电二极管。封装激光芯片或激光芯片和监视二极管芯片两者的树脂层由厚度不大于500μm的单一合成树脂制成，并且还具有基本上平行于向外定向的光束发射端面的表面激光芯片。

4. 发明申请

US20050141391A1 Optical pickup 有权
公开(公告)号：US20050141391A1
公开(公告)日：2005-06-30
申请号：US11060680
申请日：2005-02-16
申请人： Tetsuo Ueyama , Keiji Sakai , Yukio Kurata , Katsushige Masui , Naotaka Otsuka , Renzaburo Miki , Hiroshige Hirajima , Noboru Fujita
发明人： Tetsuo Ueyama , Keiji Sakai , Yukio Kurata , Katsushige Masui , Naotaka Otsuka , Renzaburo Miki , Hiroshige Hirajima , Noboru Fujita
IPC分类号： G11B7/00 , G11B7/09 , G11B7/12 , G11B7/125 , G11B7/13 , G11B7/135 , G11B7/22
CPC分类号： G11B7/131 , G11B7/0901 , G11B7/0903 , G11B7/0906 , G11B7/0908 , G11B7/0916 , G11B7/123 , G11B7/1275 , G11B7/1353 , G11B7/1356 , G11B7/1365 , G11B7/1381 , G11B7/22 , G11B2007/0006
摘要： An optical pickup can be provided, the optical pickup being capable of recording and playback of a plurality of optical disks having different specs by using light beams of different wavelengths, and further being suitable for integrating the semiconductor lasers and light receiving elements into a single package, by including: first and second semiconductor lasers adjacently disposed; a three-beam diffraction grating for generating three beams for tracking control; a second hologram element for diffracting light of the second semiconductor laser to guide it to a photosensor; a complex polarization beam splitter (PBS) for reflecting only light from the first semiconductor laser; and a first hologram element for diffracting light of the first semiconductor laser to guide it to the photosensor.

5. 发明授权

US08547814B2 Semiconductor laser device, optical pickup apparatus, and method of manufacturing semiconductor laser device 有权
标题翻译：半导体激光装置，光学拾取装置以及半导体激光装置的制造方法
公开(公告)号：US08547814B2
公开(公告)日：2013-10-01
申请号：US13228222
申请日：2011-09-08
申请人： Shinzoh Murakami , Mototaka Taneya , Takahide Ishiguro , Katsushige Masui , Satoru Fukumoto , Takeshi Horiguchi
发明人： Shinzoh Murakami , Mototaka Taneya , Takahide Ishiguro , Katsushige Masui , Satoru Fukumoto , Takeshi Horiguchi
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/1275
摘要： In a diffractive element, its grating pattern is so configured that a diffraction angle of a diffracted light beam of a light source that is subject to the first-order diffraction in a diffraction area is matched with an angle of a light beam passing through the diffractive area emitted from a light source and a light source position is matched with a light originating point of the light source that emits a light beam to be transmitted, and the center of light intensity distribution is matched with that of the light source passing through the diffractive element by inclining an optical axis of the light source. A position of the diffractive element is adjusted based on an electric current value generated when a reflected return path light beam of the light source is diffracted by the diffractive element and enters the light source.
摘要翻译：在衍射元件中，其光栅图案被配置为使得衍射区域中经受一次衍射的光源的衍射光束的衍射角与通过衍射的光束的角度相匹配从光源和光源位置发射的区域与发射要透射的光束的光源的发光点相匹配，并且光强度分布的中心与通过衍射的光源的光中心匹配元件通过倾斜光源的光轴。基于当光源的反射返回路径光束被衍射元件衍射并进入光源时产生的电流值来调节衍射元件的位置。

6. 发明授权

US08059515B2 Optical pickup apparatus 有权
标题翻译：光拾取装置
公开(公告)号：US08059515B2
公开(公告)日：2011-11-15
申请号：US12581434
申请日：2009-10-19
申请人： Shinzoh Murakami , Takehiro Shiomoto , Katsushige Masui , Osamu Hamaoka
发明人： Shinzoh Murakami , Takehiro Shiomoto , Katsushige Masui , Osamu Hamaoka
IPC分类号： G11B7/135
CPC分类号： G11B7/0948 , G11B7/0903 , G11B7/131 , G11B7/1353
摘要： Provided is an optical pickup apparatus that can be made compact and is capable of producing stable push-pull signals. The optical pickup apparatus includes a light source, an objective lens, a diffraction element, a light-receiving element, and a control-driving section. The diffraction element receives light reflected from an optical recording medium. The light-receiving element receives light beams diffracted by the diffraction element. The light-receiving element has a plurality of light-receiving regions. The light-receiving region produces an output signal responsive to the quantity of the incident light beam. The control-driving section obtains differences among the output signals from a plurality of the light-receiving regions by calculation to derive a push-pull signal, and drives the objective lens under control on the basis of the push-pull signal.
摘要翻译：提供一种可以制造得紧凑并且能够产生稳定的推挽信号的光学拾取装置。光拾取装置包括光源，物镜，衍射元件，光接收元件和控制驱动部。衍射元件接收从光记录介质反射的光。光接收元件接收由衍射元件衍射的光束。光接收元件具有多个光接收区域。光接收区域响应入射光束的量产生输出信号。控制驱动部通过计算得到来自多个受光区域的输出信号之间的差异，得到推挽信号，并根据推挽信号驱动物镜进行控制。

7. 发明授权

US07911922B2 Optical-integrated unit and optical pickup device used for reading and/or writing information from/onto an optical record medium 失效
标题翻译：用于从光学记录介质读取和/或写入信息的光学集成单元和光学拾取装置
公开(公告)号：US07911922B2
公开(公告)日：2011-03-22
申请号：US11819443
申请日：2007-06-27
申请人： Katsushige Masui
发明人： Katsushige Masui
IPC分类号： G11B7/135
CPC分类号： G11B7/123 , G11B7/0903 , G11B7/0916 , G11B7/1275 , G11B7/131 , G11B7/1353 , G11B2007/0006
摘要： A lens-side grating diffracts, in a direction of an emitter-side grating, two laser beams passed through the lens-side grating from an optical disk side. The emitter-side grating substantially passes the laser beam having a longer wavelength than the other laser beam, and directs it to a desired region of the light receiving element. The emitter-side grating diffracts the laser beam having a shorter wavelength than the other laser beam to direct a +1st diffracted beam of the laser beam thus diffracted to the same light receiving region as a 0th diffracted beam of the other laser beam. Such a structure may be employed that a −1st diffracted beam of the laser beam of the longer wavelength is directed to the same light receiving region as the 0th diffracted beam (passed beam) of the laser beam of the short wavelength.
摘要翻译：透镜侧光栅在发射侧光栅的方向衍射从光盘侧通过透镜侧光栅的两束激光。发射极侧光栅基本上通过具有比其他激光束更长波长的激光束，并将其引导到光接收元件的期望区域。发射极侧光栅衍射具有比其他激光束更短波长的激光束，以将激光束的+第一衍射光束引导到与另一激光束的第0衍射光束相同的光接收区域。可以采用这样的结构：较长波长的激光束的第一衍射光束被引导到与短波长的激光束的第0衍射光束（通过光束）相同的光接收区域。

8. 发明申请

US20100097919A1 OPTICAL PICKUP APPARATUS 有权
公开(公告)号：US20100097919A1
公开(公告)日：2010-04-22
申请号：US12581434
申请日：2009-10-19
申请人： Shinzoh MURAKAMI , Takehiro Shiomoto , Katsushige Masui , Osamu Hamaoka
发明人： Shinzoh MURAKAMI , Takehiro Shiomoto , Katsushige Masui , Osamu Hamaoka
IPC分类号： G11B7/135
CPC分类号： G11B7/0948 , G11B7/0903 , G11B7/131 , G11B7/1353
摘要： Provided is an optical pickup apparatus that can be made compact and is capable of producing stable push-pull signals. The optical pickup apparatus includes a light source, an objective lens, a diffraction element, a light-receiving element, and a control-driving section. The diffraction element receives light reflected from an optical recording medium. The light-receiving element receives light beams diffracted by the diffraction element. The light-receiving element has a plurality of light-receiving regions. The light-receiving region produces an output signal responsive to the quantity of the incident light beam. The control-driving section obtains differences among the output signals from a plurality of the light-receiving regions by calculation to derive a push-pull signal, and drives the objective lens under control on the basis of the push-pull signal.
摘要翻译：提供一种可以制造得紧凑并且能够产生稳定的推挽信号的光学拾取装置。光拾取装置包括光源，物镜，衍射元件，光接收元件和控制驱动部。衍射元件接收从光记录介质反射的光。光接收元件接收由衍射元件衍射的光束。光接收元件具有多个光接收区域。光接收区域响应入射光束的量产生输出信号。控制驱动部通过计算得到来自多个受光区域的输出信号之间的差异，得到推挽信号，并根据推挽信号驱动物镜进行控制。

9. 发明授权

US07649825B2 Splitting element, light emitter, and optical pickup apparatus 失效
标题翻译：分离元件，光发射器和光学拾取装置
公开(公告)号：US07649825B2
公开(公告)日：2010-01-19
申请号：US10551365
申请日：2004-03-19
申请人： Kazuhiro Tsuchida , Toshiya Nagahama , Keiji Sakai , Tetsuo Ueyama , Katsushige Masui , Naotaka Otsuka
发明人： Kazuhiro Tsuchida , Toshiya Nagahama , Keiji Sakai , Tetsuo Ueyama , Katsushige Masui , Naotaka Otsuka
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/0901 , G11B2007/0013
摘要： An object of the invention is to provide a splitter, a light emitter, and an optical pickup apparatus which can realize a stable track servo. Because of the structure of an optical system including an objective lens (27) and a hologram pattern (25), even when the hologram pattern (25) is irradiated with a reflected light from one recording layer other than another recording layer in a focused state, first and second TES splitting portions (35, 36) are not irradiated with the reflected light from the one recording layer, but the reflected light is led to an axis vicinity portion (38) only. Accordingly, light reception by first and second TES light receiving portions (45, 46) is prevented, accurate track position information and deviation information can be positively acquired, and troubles such as the objective lens (27) being driven beyond a movable range can be eliminated.
摘要翻译：本发明的目的是提供一种能够实现稳定轨道伺服的分路器，光发射器和光拾取装置。由于包括物镜（27）和全息图（25）的光学系统的结构，即使当全息图图案（25）在聚焦状态下从除另一个记录层之外的一个记录层的反射光照射时第一和第二TES分割部分（35,36）不被来自一个记录层的反射光照射，但是反射光仅被引导到轴附近部分（38）。因此，能够防止由第一和第二TES光接收部分（45,46）的光接收，可以肯定地获取精确的轨道位置信息和偏差信息，并且诸如物镜（27）被驱动超出可移动范围的问题可以是消除了

10. 发明申请

US20080013434A1 Optical-integrated unit and optical pickup device used for reading and/or writing information from / onto an optical record medium 失效
标题翻译：用于从光学记录介质读取和/或写入信息的光学集成单元和光学拾取装置
公开(公告)号：US20080013434A1
公开(公告)日：2008-01-17
申请号：US11819443
申请日：2007-06-27
申请人： Katsushige Masui
发明人： Katsushige Masui
IPC分类号： G11B7/135 , G11B7/00
CPC分类号： G11B7/123 , G11B7/0903 , G11B7/0916 , G11B7/1275 , G11B7/131 , G11B7/1353 , G11B2007/0006
摘要： A lens-side grating diffracts, in a direction of an emitter-side grating, two laser beams passed through the lens-side grating from an optical disk side. The emitter-side grating substantially passes the laser beam having a longer wavelength than the other laser beam, and directs it to a desired region of the light receiving element. The emitter-side grating diffracts the laser beam having a shorter wavelength than the other laser beam to direct a +1st diffracted beam of the laser beam thus diffracted to the same light receiving region as a 0th diffracted beam of the other laser beam. Such a structure may be employed that a −1st diffracted beam of the laser beam of the longer wavelength is directed to the same light receiving region as the 0th diffracted beam (passed beam) of the laser beam of the short wavelength.
摘要翻译：透镜侧光栅在发射侧光栅的方向衍射从光盘侧通过透镜侧光栅的两束激光。发射极侧光栅基本上通过具有比其他激光束更长波长的激光束，并将其引导到光接收元件的期望区域。发射极侧光栅衍射具有比其他激光束更短波长的激光束，以将激光束的+第一衍射光束引导到与另一激光束的第0衍射光束相同的光接收区域。可以采用这样的结构：较长波长的激光束的第一衍射光束被引导到与短波长的激光束的第0衍射光束（通过光束）相同的光接收区域。

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