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11. 发明授权

US08470724B2 Transparent polycrystalline material and production process for the same 有权
标题翻译：透明多晶材料和生产工艺相同
公开(公告)号：US08470724B2
公开(公告)日：2013-06-25
申请号：US13142132
申请日：2009-12-25
申请人： Takunori Taira , Jun Akiyama , Shigeo Asai , Kunihiko Hara
发明人： Takunori Taira , Jun Akiyama , Shigeo Asai , Kunihiko Hara
IPC分类号： C04B35/50
CPC分类号： H01F41/0253 , B28B1/00 , B33Y40/00 , C04B35/447 , C04B35/50 , C04B35/6455 , C04B2235/3224 , C04B2235/6027 , C04B2235/605 , C04B2235/9653 , C30B28/00 , C30B29/22 , C30B29/30 , C30B30/04 , H01S3/1603 , H01S3/1611 , H01S3/1618 , H01S3/1671 , H01S3/1673 , H01S3/1685
摘要： Upon producing a transparent polycrystalline material, a suspension liquid (or slurry 1) is prepared, the suspension liquid being made by dispersing a raw-material powder in a solution, the raw-material powder including optically anisotropic single-crystalline particles to which a rare-earth element is added. A formed body is obtained from the suspension liquid by means of carrying out slip casting in a space with a magnetic field applied. On this occasion, while doing a temperature control so that the single-crystalline particles demonstrate predetermined magnetic anisotropy, one of static magnetic fields and rotary magnetic fields is selected in compliance with a direction of an axis of easy magnetization in the single-crystalline particles, and is then applied to them. A transparent polycrystalline material is obtained by sintering the formed body, the transparent polycrystalline material having a polycrystalline structure whose crystal orientation is controlled. In this calcination step, after subjecting the formed body to primary sintering at a temperature of 1,600-1,900 K, the resulting primarily-sintered body undergoes hot-isotropic-press sintering (or HIP processing) at a temperature of 1,600-1,900 K.
摘要翻译：在制备透明多晶材料时，制备悬浮液（或浆液1），悬浮液通过将原料粉末分散在溶液中而制成，原料粉末包括光学各向异性单晶颗粒，其中稀有添加了地面元素。通过在施加磁场的空间中进行滑移铸造，从悬浮液获得成形体。在这种情况下，当进行温度控制使得单晶颗粒表现出预定的磁各向异性时，根据单晶颗粒中易磁化轴的方向选择静磁场和旋转磁场之一，然后应用于它们。通过烧结成形体获得透明多晶材料，该透明多晶材料具有晶体取向被控制的多晶结构。在该烧成工序中，在1600〜1900K温度下对成型体进行一次烧结后，在1600〜1900K的温度下进行热均质压制烧结（或HIP加工）。

12. 发明申请

US20110260367A1 TRANSPARENT POLYCRYSTALLINE MATERIAL AND PRODUCTION PROCESS FOR THE SAME 有权
标题翻译：透明多晶材料及其生产工艺
公开(公告)号：US20110260367A1
公开(公告)日：2011-10-27
申请号：US13142132
申请日：2009-12-25
申请人： Takunori Taira , Jun Akiyama , Shigeo Asai , Kunihiko Hara
发明人： Takunori Taira , Jun Akiyama , Shigeo Asai , Kunihiko Hara
IPC分类号： B29C39/00 , C04B35/50 , C04B35/495 , C04B35/00 , C04B35/447
CPC分类号： H01F41/0253 , B28B1/00 , B33Y40/00 , C04B35/447 , C04B35/50 , C04B35/6455 , C04B2235/3224 , C04B2235/6027 , C04B2235/605 , C04B2235/9653 , C30B28/00 , C30B29/22 , C30B29/30 , C30B30/04 , H01S3/1603 , H01S3/1611 , H01S3/1618 , H01S3/1671 , H01S3/1673 , H01S3/1685
摘要： Upon producing a transparent polycrystalline material, a suspension liquid (or slurry 1) is prepared, the suspension liquid being made by dispersing a raw-material powder in a solution, the raw-material powder including optically anisotropic single-crystalline particles to which a rare-earth element is added. A formed body is obtained from the suspension liquid by means of carrying out slip casting in a space with a magnetic field applied. On this occasion, while doing a temperature control so that the single-crystalline particles demonstrate predetermined magnetic anisotropy, one of static magnetic fields and rotary magnetic fields is selected in compliance with a direction of an axis of easy magnetization in the single-crystalline particles, and is then applied to them. A transparent polycrystalline material is obtained by sintering the formed body, the transparent polycrystalline material having a polycrystalline structure whose crystal orientation is controlled. In this calcination step, after subjecting the formed body to primary sintering at a temperature of 1,600-1,900 K, the resulting primarily-sintered body undergoes hot-isotropic-press sintering (or HIP processing) at a temperature of 1,600-1,900 K.
摘要翻译：在制备透明多晶材料时，制备悬浮液（或浆液1），悬浮液通过将原料粉末分散在溶液中而制成，原料粉末包括光学各向异性单晶颗粒，其中稀有添加了地面元素。通过在施加磁场的空间中进行滑移铸造，从悬浮液获得成形体。在这种情况下，当进行温度控制使得单晶颗粒表现出预定的磁各向异性时，根据单晶颗粒中易磁化轴的方向选择静磁场和旋转磁场之一，然后应用于它们。通过烧结成形体获得透明多晶材料，该透明多晶材料具有晶体取向被控制的多晶结构。在该烧成工序中，在1600〜1900K温度下对成型体进行一次烧结后，在1600〜1900K的温度下进行热均质压制烧结（或HIP加工）。

13. 发明授权

US07751457B2 Laser-diode pumped solid-state laser apparatus, optical scanning apparatus, image forming apparatus and display apparatus 有权
标题翻译：激光二极管泵浦固体激光装置，光学扫描装置，成像装置和显示装置
公开(公告)号：US07751457B2
公开(公告)日：2010-07-06
申请号：US11812955
申请日：2007-06-22
申请人： Tsuyoshi Suzudo , Takunori Taira , Yoichi Sato , Yasunori Furukawa , Sadao Matsumura , Makoto Matsukura , Osamu Nakamura , Shinya Watanabe , Akio Miyamoto
发明人： Tsuyoshi Suzudo , Takunori Taira , Yoichi Sato , Yasunori Furukawa , Sadao Matsumura , Makoto Matsukura , Osamu Nakamura , Shinya Watanabe , Akio Miyamoto
IPC分类号： H01S5/00
CPC分类号： H01S3/0941 , H01S3/005 , H01S3/0604 , H01S3/061 , H01S3/0612 , H01S3/0617 , H01S3/0627 , H01S3/09408 , H01S3/1611 , H01S3/2383 , H01S3/2391
摘要： A laser-diode pumped solid-state laser apparatus comprises at least one laser diode producing a pumping laser light, and at least one laser light generator including a monocrystalline substance doped with a dopant element and pumped with the pumping laser light from at least one laser diode, the monocrystalline substance containing the dopant element with a concentration profile such that the dopant element increases a concentration thereof in a direction perpendicular to a laser oscillation direction gently in the form of a slope from a near zero concentration.
摘要翻译：激光二极管泵浦固体激光装置包括至少一个产生泵浦激光的激光二极管，以及至少一个激光发生器，其包括掺杂有掺杂元素的单晶物质，并用来自至少一个激光器的泵浦激光泵浦二极管，含有掺杂剂元素的单晶物质具有浓度分布，使得掺杂剂元素在垂直于激光振荡方向的方向上以从接近零浓度的斜率形式轻轻地增加其浓度。

14. 发明申请

US20060243238A1 Laser type engine ignition device 有权
标题翻译：激光式发动机点火装置
公开(公告)号：US20060243238A1
公开(公告)日：2006-11-02
申请号：US11413058
申请日：2006-04-28
申请人： Yukinobu Anezaki , Kenji Kanehara , Aki Abe , Tohru Yoshinaga , Takunori Taira
发明人： Yukinobu Anezaki , Kenji Kanehara , Aki Abe , Tohru Yoshinaga , Takunori Taira
IPC分类号： F02B19/00 , F02P23/00
CPC分类号： F02B23/104 , F02B2075/125 , F02D35/022 , F02D35/023 , F02D41/1458 , F02P23/04 , Y02T10/125
摘要： A laser type ignition device for an internal combustion engine includes a laser oscillator mounted in the internal combustion engine so as to focus its laser beam on an air-fuel mixture supplied into the combustion chamber, a pressure sensor for detecting pressure in the combustion chamber, a power source for the laser oscillator and a control unit for controlling the power source to supply the laser oscillator with the current whose amount changes according to the pressure in the combustion chamber. The power of the laser beam increases as the pressure in the combustion chamber decreases to completely ignite the air-fuel mixture.
摘要翻译：一种用于内燃机的激光式点火装置，包括安装在内燃机中的激光振荡器，以便将其激光束聚焦在供应到燃烧室中的空气燃料混合物上;一个压力传感器，用于检测燃烧室中的压力，用于激光振荡器的电源和用于控制电源以向激光振荡器提供其量随着燃烧室中的压力而变化的电流的控制单元。激光束的功率随着燃烧室中的压力降低而完全点燃空气 - 燃料混合物。

15. 发明申请

US20050226303A1 Solid-state laser pumped by semiconductor laser array 审中-公开
标题翻译：由半导体激光器阵列泵浦的固体激光器
公开(公告)号：US20050226303A1
公开(公告)日：2005-10-13
申请号：US11091542
申请日：2005-03-29
申请人： Tsuyoshi Suzudo , Takunori Taira
发明人： Tsuyoshi Suzudo , Takunori Taira
IPC分类号： H01S3/00 , H01S3/042 , H01S3/06 , H01S3/091 , H01S3/0941 , H01S3/109 , H01S3/16 , H01S3/23
CPC分类号： H01S3/0941 , H01S3/005 , H01S3/025 , H01S3/042 , H01S3/0604 , H01S3/0612 , H01S3/0627 , H01S3/109 , H01S3/1611 , H01S3/1643 , H01S3/1671 , H01S3/2383 , H01S3/2391
摘要： A solid-state laser apparatus includes a solid-state laser medium producing an output laser beam, the solid-state laser medium forming a microchip laser and having opposing end surfaces forming a laser cavity, a semiconductor laser array pumping the solid-state laser medium by a pumping laser beam, the semiconductor laser array injecting the pumping laser beam to the solid-state laser medium from a direction perpendicular to a direction of the output laser beam, the solid-state laser medium and the semiconductor laser array are mounted on a common mounting substrate.
摘要翻译：固体激光装置包括产生输出激光束的固体激光介质，形成微芯片激光器的固态激光介质，并具有形成激光腔的相对端面;半导体激光器阵列泵浦固态激光介质通过泵浦激光束，半导体激光器阵列从垂直于输出激光束的方向的方向将激光激光束注入到固态激光介质中，固态激光介质和半导体激光器阵列安装在通用安装基板。

16. 发明授权

US06950449B2 Passively Q-switched laser 有权
标题翻译：被动Q开关激光器
公开(公告)号：US06950449B2
公开(公告)日：2005-09-27
申请号：US10237090
申请日：2002-09-09
申请人： Hiroshi Sakai , Akihiro Sone , Hirofumi Kan , Takunori Taira
发明人： Hiroshi Sakai , Akihiro Sone , Hirofumi Kan , Takunori Taira
IPC分类号： H01S3/113 , H01S3/11
CPC分类号： H01S3/113 , H01S3/005 , H01S3/09415 , H01S3/1022
摘要： The present passively Q-switched laser comprises a condensing optical system for condensing a laser beam emitted from a laser light source onto the surface of the solid-state laser medium. The surface of a solid-state laser medium is disposed off the condensation position of the laser beam produced by the condensing optical system.
摘要翻译：本被动Q开关激光器包括用于将从激光光源发射的激光束聚光到固态激光介质的表面上的聚光光学系统。固态激光介质的表面设置在由聚光光学系统产生的激光束的冷凝位置之外。

17. 发明授权

US06931047B2 Laser light source 失效
标题翻译：激光光源
公开(公告)号：US06931047B2
公开(公告)日：2005-08-16
申请号：US10327614
申请日：2002-12-24
申请人： Hirofumi Kan , Akihiro Sone , Hiroshi Sakai , Takunori Taira , Nicolaie Pavel , Voicu Lupei
发明人： Hirofumi Kan , Akihiro Sone , Hiroshi Sakai , Takunori Taira , Nicolaie Pavel , Voicu Lupei
IPC分类号： H01S3/113 , H01S3/0941 , H01S3/102 , H01S3/11 , H01S3/00
CPC分类号： H01S3/113 , H01S3/0612 , H01S3/0627 , H01S3/09415 , H01S3/1022 , H01S3/1024
摘要： In the first period from pumping start time T1 to time T2 in a laser light source 1, the power of pumping light L1 outputted from a pumping light source 41 so as to irradiate a laser medium 21 is at value P1 whereas the power of light L2 incident on a saturable absorber 30 after being emitted from the laser medium 21 is at an absorption saturation threshold or lower, which causes a resonator 10 to lower its Q-value, thereby suppressing the laser oscillation. Immediately before time T2, the power of light L2 is slightly lower than the absorption saturation threshold. In the second period subsequent to the first period, the power of light L2 is at value P2 greater than the above-mentioned value P1, whereas the power of light L2 exceeds the absorption saturation threshold, which causes the resonator 10 to increase its Q-value, whereby a mirror 12 outputs pulse laser light L3 to the outside.
摘要翻译：在激光光源1中的从泵浦开始时间T 1到时刻T 2的第一期间，从泵浦光源41输出的照射激光介质21的泵浦光L 1的功率为值P 1，从激光介质21发射后入射到可饱和吸收体30上的光L 2的功率处于吸收饱和阈值以下，使谐振器10降低其Q值，抑制激光振荡。在时间T 2之前，光L 2的功率略低于吸收饱和阈值。在第一时段之后的第二个周期中，光L 2的功率大于上述值P 1的值P 2，而光L 2的功率超过吸收饱和阈值，这导致谐振器10 增加其Q值，由此反射镜12将脉冲激光L 3输出到外部。

18. 发明申请

US20050117085A1 Optical element 审中-公开
标题翻译：光学元件
公开(公告)号：US20050117085A1
公开(公告)日：2005-06-02
申请号：US10502055
申请日：2002-08-08
申请人： Takunori Taira , Ichiro Shoji
发明人： Takunori Taira , Ichiro Shoji
IPC分类号： G02B5/30 , H01S3/06 , H01S3/08 , H01S3/16 , G02F1/1333
CPC分类号： H01S3/0602 , H01S3/08072 , H01S3/16 , H01S3/1643
摘要： An optical device which can significantly reduce thermal birefringence effect is provided. In the optical device, depolarization generated by thermally induced birefringence is reduced significantly without making any compensation by using a (110)-cut crystal. Depolarization can be reduced by more than one order in comparison with a (111)-cut crystal.
摘要翻译：提供了可以显着降低热双折射效应的光学装置。在光学器件中，通过使用（110）切割的晶体，通过热诱导双折射产生的去极化显着降低而不进行任何补偿。与（111）切割晶体相比，去极化可以减少一个以上的次序。

19. 发明授权

US09188738B2 Translucent polycrystalline material and manufacturing method thereof 有权
标题翻译：半透明多晶材料及其制造方法
公开(公告)号：US09188738B2
公开(公告)日：2015-11-17
申请号：US13983829
申请日：2012-01-04
申请人： Takunori Taira , Jun Akiyama , Shigeo Asai
发明人： Takunori Taira , Jun Akiyama , Shigeo Asai
IPC分类号： C04B35/50 , C04B35/51 , G02B6/10 , H01S3/102 , H01S3/106 , C04B35/44 , C04B35/447 , C04B35/495 , C04B35/645 , F21V9/00 , G02B5/02 , G02C7/10 , G02F1/361 , G03B11/00 , B29D11/00 , G02B1/12 , H01S3/06 , H01S3/16
CPC分类号： G02B6/10 , C04B35/44 , C04B35/447 , C04B35/495 , C04B35/6455 , C04B2235/3208 , C04B2235/3212 , C04B2235/3213 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3229 , C04B2235/3239 , C04B2235/445 , C04B2235/605 , C04B2235/75 , C04B2235/76 , C04B2235/764 , C04B2235/77 , C04B2235/9653 , H01S3/0604 , H01S3/061 , H01S3/0612 , H01S3/102 , H01S3/1066 , H01S3/1611 , H01S3/1643 , H01S3/1645 , H01S3/1685
摘要： Provided is a method for manufacturing a translucent polycrystalline material with optical properties continuously varying in the material. A slurry including single crystal grains that are acted upon by a force when placed in a magnetic field is immobilized in a gradient magnetic field with a spatially varying magnetic flux density and then sintered. For example, where a slurry including single crystal grains of YAG doped with Er and single crystal grains of YAG undoped with a rare earth material is immobilized in the gradient magnetic field, the region with a strong magnetic field becomes a laser oscillation region that is rich in Er-doped YAG, whereas the region with a weak magnetic field becomes a translucent region rich in YAG undoped with a rare earth material. A polycrystalline material having a core with laser oscillations and a guide surrounding the core are obtained at once.
摘要翻译：本发明提供一种在材料中连续变化的光学性质的半透明多晶材料的制造方法。包括在放置在磁场中时受力作用的单晶粒的浆料固定在具有空间变化的磁通密度的梯度磁场中，然后烧结。例如，在梯度磁场中固定含有掺杂有Er的YAG的单晶粒和不含稀土材料的YAG的单晶粒的浆料，具有强磁场的区域成为富的激光振荡区域在Er掺杂的YAG中，而具有弱磁场的区域变成稀土元素富含YAG的半透明区域。一次获得具有激光振荡的芯和围绕芯的引导件的多晶材料。

20. 发明授权

US08976820B2 Passive Q-switch-type solid laser apparatus 有权
标题翻译：被动Q开关型固体激光装置
公开(公告)号：US08976820B2
公开(公告)日：2015-03-10
申请号：US14006742
申请日：2012-05-21
申请人： Takunori Taira , Simon Joly , Rakesh Bhandari
发明人： Takunori Taira , Simon Joly , Rakesh Bhandari
IPC分类号： H01S3/11 , H01S3/113 , H01S3/042 , H01S3/06 , H01S3/102 , H01S3/16 , H01S3/02 , H01S3/04
CPC分类号： H01S3/1115 , H01S3/025 , H01S3/0405 , H01S3/042 , H01S3/0604 , H01S3/0612 , H01S3/0621 , H01S3/1028 , H01S3/113 , H01S3/1611 , H01S3/1673
摘要： To provide a passive Q-switch-type solid laser apparatus for outputting a high peak-power pulse laser whose pulse energy is large and pulse-time width is small. A passive Q-switch-type solid laser apparatus has: two reflection elements for forming an oscillator; a solid gain medium being disposed between the two reflection elements; a saturable absorber being disposed between the two reflection elements; an excitation device for exciting the solid gain medium; and a cross section control device for making at least one of a stimulated emission cross section of the solid gain medium and an absorption cross section of the saturable absorber closer to another one of them; and the cross section control device is equipped with at least one or both of a temperature control device for retaining the solid gain medium at a predetermined temperature and an oscillatory-wavelength control device for fixating an oscillatory wavelength at a predetermined wavelength.
摘要翻译：提供一种用于输出脉冲能量大且脉冲宽度小的高峰值功率脉冲激光器的无源Q开关型固体激光装置。无源Q开关型固体激光装置具有：用于形成振荡器的两个反射元件; 固体增益介质设置在两个反射元件之间; 设置在两个反射元件之间的可饱和吸收体; 用于激发固体增益介质的激励装置; 以及横截面控制装置，用于使固体增益介质的受激发射横截面和可饱和吸收体的吸收截面中的至少一个更靠近其中一个; 并且横截面控制装置配备有用于将固体增益介质保持在预定温度的温度控制装置和用于固定预定波长的振荡波长的振荡波长控制装置中的至少一个或两个。

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