专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

US4909596A Optical wavelength converter module 失效
标题翻译：光波长转换模块
公开(公告)号：US4909596A
公开(公告)日：1990-03-20
申请号：US244237
申请日：1988-09-14
申请人： Yoji Okazaki , Koji Kamiyama , Akinori Harada , Takayuki Katoh
发明人： Yoji Okazaki , Koji Kamiyama , Akinori Harada , Takayuki Katoh
IPC分类号： G02F1/383
CPC分类号： G02F1/383
摘要： An optical wavelength converter module comprises a fiber type optical wavelength converter device and a light source device. The optical wavelength converter device includes a core made of a monocrystalline nonlinear optical material (3,5-dimethyl-1-(4-nitrophenyl)-1,2,4-triazole). The optical material has a crystal oriented such that the b-axis thereof extends substantially along the axis of said core. The light source device applies, to the optical wavelength converter device, a fundamental which is linearly polarized in the direction of the a-axis or c-axis of said crystal which is normal to the b-axis.
摘要翻译：光波长转换器模块包括光纤型光波长转换器装置和光源装置。光波长转换器装置包括由单晶非线性光学材料（3,5-二甲基-1-（4-硝基苯基）-1,2,4-三唑）制成的芯。光学材料具有晶体取向，使得其b轴基本上沿着芯的轴线延伸。光源装置向光波长转换器装置施加在垂直于b轴的所述晶体的a轴或c轴的方向上线偏振的基波。

12. 发明授权

US5652757A Optical wavelength converting apparatus 失效
标题翻译：光波长转换装置
公开(公告)号：US5652757A
公开(公告)日：1997-07-29
申请号：US665916
申请日：1996-06-19
申请人： Yoji Okazaki , Chiaki Goto , Hiroaki Hyuga , Akinori Harada
发明人： Yoji Okazaki , Chiaki Goto , Hiroaki Hyuga , Akinori Harada
IPC分类号： G02F1/35 , G02F1/355 , G02F1/37 , H01S3/109 , H01S3/10
CPC分类号： G02F1/37 , H01S3/109 , G02F1/3553 , G02F2001/3546
摘要： In an optical wavelength converting apparatus, a fundamental wave impinges upon a crystal of a nonlinear optical material, the type II of phase matching between the fundamental wave and its second harmonic is effected, and the second harmonic of the fundamental wave is thereby radiated out of the optical wavelength converting apparatus. Two crystals constituted of the same material are employed as the crystal. The two crystals have equal lengths and are located in orientations such that corresponding optic axes may be shifted 90.degree. from each other. The optical wavelength converting apparatus yields the second harmonic having the maximum possible output power and yet can be kept small in size and low in cost.
摘要翻译：在光波长变换装置中，基波对非线性光学材料的晶体入射，实现了基波和二次谐波之间的相位匹配型II，从而将基波的二次谐波从光波长转换装置。使用由相同材料构成的两个晶体作为晶体。两个晶体具有相等的长度并且位于取向上，使得相应的光轴彼此相差90度。光波长转换装置产生具有最大可能输出功率的二次谐波，并且可以保持尺寸小，成本低。

13. 发明授权

US5744073A Fabrication of ferroelectric domain reversals 失效
标题翻译：铁电畴反转的制作
公开(公告)号：US5744073A
公开(公告)日：1998-04-28
申请号：US531280
申请日：1995-09-20
申请人： Yasukazu Nihei , Yoji Okazaki , Akinori Harada
发明人： Yasukazu Nihei , Yoji Okazaki , Akinori Harada
IPC分类号： G02F1/37 , G02B5/18 , G02F1/35 , G02F1/355 , G02F1/377 , H01S3/109 , B29D11/00 , G02B1/00
CPC分类号： G02B5/1857 , G02F1/3558 , G02F1/3775 , G02F2001/3548
摘要： A method for fabricating domain reversals in predetermined periods without the occurrence of localized variations in refractive index. Localized areas of a unipolarized ferroelectric material which is made of an LiNbO.sub.3 substrate, or the like, and possesses a nonlinear optical effect are exposed to electron beams in a predetermined pattern, so that domain reversals are defined. Thereafter, this ferroelectric material is subjected to a heat treatment at a temperature below the Curie temperature of the ferroelectric material.
摘要翻译：一种在预定周期内制造畴反转而不发生折射率局部变化的方法。由LiNbO 3衬底等制成且具有非线性光学效应的单极化铁电材料的局部区域以预定图案暴露于电子束，从而定义畴反转。然后，在低于铁电体的居里温度的温度下对该铁电体进行热处理。

14. 发明授权

US5197072A Optical wavelength converting device, and laser diode pumped solid laser 失效
标题翻译：光波长转换装置和激光二极管泵浦固体激光器
公开(公告)号：US5197072A
公开(公告)日：1993-03-23
申请号：US714530
申请日：1991-06-13
申请人： Akinori Harada , Nobuharu Nozaki , Yoji Okazaki , Horoaki Hyuga
发明人： Akinori Harada , Nobuharu Nozaki , Yoji Okazaki , Horoaki Hyuga
IPC分类号： G02F1/377 , H01S3/063 , H01S3/109 , H01S5/06
CPC分类号： H01S3/109 , G02F1/377 , H01S3/0632 , H01S3/09415 , H01S3/1095
摘要： An optical wavelength converting device comprises an optical waveguide device. The optical waveguide device is provided with a waveguide, which is constituted of a solid laser medium doped with a rare earth metal and a nonlinear optical material for converting a wavelength. The solid laser medium and said nonlinear optical material are overlaid one upon the other. A cladding is formed of a material having a lower refractive index than the waveguide and accommodates the waveguide therein. Two edge faces of the optical waveguide device serve as a resonator for a laser beam, which has been produced by the solid laser medium.
摘要翻译：光波长转换装置包括光波导装置。光波导装置设置有由掺杂有稀土金属的固体激光介质和用于转换波长的非线性光学材料构成的波导。固体激光介质和所述非线性光学材料彼此重叠。包层由折射率低于波导的材料形成，并且在其中容纳波导。光波导器件的两个边缘面用作激光束的共振器，其由固体激光介质制造。

15. 发明授权

US5013129A Optical wavelength converter device and method of manufacturing same 失效
标题翻译：光波长转换器及其制造方法
公开(公告)号：US5013129A
公开(公告)日：1991-05-07
申请号：US503571
申请日：1990-04-03
申请人： Akinori Harada , Yoji Okazaki
发明人： Akinori Harada , Yoji Okazaki
IPC分类号： G02F1/35 , G02B6/122 , G02F1/355 , G02F1/37 , G02F1/377
CPC分类号： G02B6/122 , G02F1/377 , G02F2001/374
摘要： An optical wavelength converter device is in the form of a three-dimensional optical waveguide and comprises a cladding and a waveguide element embedded in the cladding and having a refractive index higher than that of the cladding. Each of the cladding and the waveguide element is made of a III - V group, mixed-crystal compound semiconductor material or a II - VI group, mixed-crystal compound semiconductor material. The cladding includes homogeneous portions covering all surfaces of the waveguide element which fully reflect the fundamental wave being guided in the waveguide element.
摘要翻译：光学波长转换器装置是三维光波导的形式，包括一个包层和一个嵌入包层中的波导元件，其折射率高于包层的折射率。每个包层和波导元件由III-V族，混合晶体化合物半导体材料或II-VI族混合晶体化合物半导体材料制成。包层包括覆盖波导元件的所有表面的均匀部分，其完全反射在波导元件中被引导的基波。

16. 发明授权

US4991931A Method of driving optical wavelength converter module 失效
标题翻译：光波长转换模块的驱动方法
公开(公告)号：US4991931A
公开(公告)日：1991-02-12
申请号：US470500
申请日：1990-01-26
申请人： Akinori Harada , Yoji Okazaki , Hiroshi Sunagawa
发明人： Akinori Harada , Yoji Okazaki , Hiroshi Sunagawa
IPC分类号： G02F1/37 , G02F1/377 , G02F1/383 , H01S3/09 , H01S5/042
CPC分类号： G02F1/377 , G02F1/383
摘要： An optical wavelength converter module includes an optical wavelength converter device having a cladding and a waveguide which is disposed in the cladding and has a higher refractive index than the cladding, at least one of the cladding and the waveguide being made of a nonlinear optical material, whereby the wavelength of a fundamental which is propagating in the waveguide is converted. The optical wavelength converter module also includes a semiconductor laser for emitting a laser beam which is introduced as the fundamental into the waveguide. The semiconductor laser is driven with a pulsed drive current. The duration of the drive current pulses is made short enough to enable the semiconductor laser to produce a higher peak output power than when it is continuously driven, and it is made longer then a duration which falls within the range of pulse durations wherein the input coupling efficiency decreases as the pulse duration decreases and at which the wavelength conversion efficiency is equal to that which is achieved when the semiconductor laser is continuously driven.
摘要翻译：光波长转换器模块包括具有包层和波导的光波长转换器装置，其布置在包层中并且具有比包层更高的折射率，包层和波导中的至少一个由非线性光学材料制成，从而转换在波导中传播的基波的波长。光波长转换器模块还包括用于发射作为基波导入波导的激光束的半导体激光器。半导体激光器以脉冲驱动电流驱动。使得驱动电流脉冲的持续时间足够短以使得半导体激光器能够产生比连续驱动时更高的峰值输出功率，并且使其长于在脉冲持续时间范围内的持续时间，其中输入耦合随着脉冲持续时间的减小，波长转换效率等于半导体激光器连续驱动时的效率降低，效率降低。

17. 发明授权

US4909595A Optical wavelength conversion method and optical wavelength converter module 失效
标题翻译：光波长转换方法和光波长转换模块
公开(公告)号：US4909595A
公开(公告)日：1990-03-20
申请号：US244211
申请日：1988-09-14
申请人： Yoji Okazaki , Koji Kamiyama , Akinori Harada , Takayuki Katoh
发明人： Yoji Okazaki , Koji Kamiyama , Akinori Harada , Takayuki Katoh
IPC分类号： G02F1/383
CPC分类号： G02F1/383
摘要： A bulk crystal type optical wavelength converter device is made of a monocrystalline nonlinear optical material (3,5-dimethyl-1-(4-nitrophenyl)pyrazole, referred to as PRA). A linearly polarized fundamental having a wavelength ranging from 900 to 4000 nm is applied to the bulk monocrystalline nonlinear optical material to achieve angular phase matching of the type I for obtaining a second harmonic of the fundamental. An optical wavelength converter module comprises a fiber type optical wavelength converter device and a light source device. The optical wavelength converter device includes a core made of a monocrystal of the PRA which has a crystal orientation such that the c-axis thereof extends substantially along the axis of the core. The light source device applies, to the optical wavelength converter device, a fundamental which is linearly polarized in the direction of the a-axis or b-axis of the crystal which is normal to the c-axis.

18. 发明授权

US09951867B2 Piston damper 有权
公开(公告)号：US09951867B2
公开(公告)日：2018-04-24
申请号：US13881598
申请日：2011-10-26
申请人： Akinori Harada
发明人： Akinori Harada
IPC分类号： F16F9/54 , F16J1/00 , F16F9/02 , F16F9/32 , F16C11/04 , F16C25/04
CPC分类号： F16J1/005 , F16C11/04 , F16C25/04 , F16C2361/53 , F16F9/0218 , F16F9/3221 , F16F9/3235 , F16F9/54
摘要： A piston damper has a cylinder including an attachment portion; a piston reciprocatingly disposed inside the cylinder; and a rod including an attachment portion that is moved synchronously with the piston. Each of the attachment portions of the cylinder and the rod is adapted to connect to different one of a first member and a second member to damp a movement of the other member relative to one member among both the members. At least one of the attachment portion of the cylinder and the attachment portion of the rod is formed with a fitting hole, and the attachment portion is axially supported in a fitted state between the fitting hole and an axis relative to at least one of the first member and the second member, and includes an urging device absorbing looseness of the fitting hole relative to the axis.

19. 发明授权

US09658574B2 Powder container, developing device, process unit, and image forming apparatus 有权
公开(公告)号：US09658574B2
公开(公告)日：2017-05-23
申请号：US15086776
申请日：2016-03-31
申请人： Shoh Tsuritani , Tomohiro Kubota , Yoshiyuki Shimizu , Masato Tsuji , Akinori Harada , Kyoko Abe
发明人： Shoh Tsuritani , Tomohiro Kubota , Yoshiyuki Shimizu , Masato Tsuji , Akinori Harada , Kyoko Abe
IPC分类号： G03G15/08
CPC分类号： G03G15/0891 , G03G15/0887 , G03G15/0889 , G03G15/0893 , G03G2215/0132 , G03G2215/0838
摘要： A powder container is provided. The powder container includes a powder storage and a conveyer. The powder storage stores a powder to be used for image formation and has a vent hole to pass air between an inside and an outside of the powder storage. The conveyer conveys the powder inside the powder storage. The vent hole is on an upper surface of the powder storage facing the conveyer.

20. 发明授权

US08827056B2 Damper device 有权
标题翻译：减震装置
公开(公告)号：US08827056B2
公开(公告)日：2014-09-09
申请号：US13390275
申请日：2010-08-03
申请人： Kazuyoshi Koizumi , Akinori Harada
发明人： Kazuyoshi Koizumi , Akinori Harada
IPC分类号： F16F9/48
CPC分类号： F16F9/0218 , F16F9/3415 , F16F9/342 , F16F9/512
摘要： A cylinder body is partitioned by a partition into a first chamber that is divided from an outside by a cap body and a second chamber accommodating a piston body. A flow channel communicating the first chamber and the second chamber with each other is formed in the partition, and a shaft is projected from the partition onto the first chamber side. The cap body includes a through-hole, the shaft is inserted movably in the through-hole from a reference position along an axis line direction of the cylinder body. There is provided a throttle structure that changes a gap between the through-hole and the shaft when the cap body moves from the reference position by a pressure change generated by a movement or a relative movement of the piston body.
摘要翻译：圆筒体由隔板分隔成通过盖体从外部分开的第一室和容纳活塞体的第二室。在隔板中形成有使第一室和第二室相通的流路，并且将分隔壁上的轴突出到第一室一侧。盖体包括通孔，该轴从圆筒体的轴线方向的基准位置可移动地插入到通孔中。提供了一种节气门结构，当帽体从基准位置移动通过由活塞体的运动或相对运动产生的压力变化时，改变通孔和轴之间的间隙。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式