公开(公告)号：US06657653B2

公开(公告)日：2003-12-02

申请号：US09883185

申请日：2001-06-19

申请人： Shinichi Nakatsuka ,  Junshin Sakamoto ,  Akira Arimoto

发明人： Shinichi Nakatsuka ,  Junshin Sakamoto ,  Akira Arimoto

IPC分类号： B41J2435

CPC分类号： G06K15/1214 ,  B41J2/471 ,  G02B26/12

摘要： An electric photograph system for improving non-linearities of an exposing light intensity and an operating current at a low exposing level when performing analog printing operation. A range (saturable absorber) having a saturable absorbing characteristic is provided in a part of an optical path including a semiconductor laser as light source to improve the non-linearity of the operating current when the light intensity is weak. The saturable absorber may be made in the form of a non current injected area provided in a part of the semiconductor laser as the light source or a thin film layer provided partly in films coated on a facet of the semiconductor laser. Due to the provision of the saturable absorber, the light output power characteristic can exhibit its linearity in its low optical power range, the size of a printing dot can be arithmetically changed, and thus fine laser printing can be realized.

公开(公告)号：US6091439A

公开(公告)日：2000-07-18

申请号：US966193

申请日：1997-11-07

申请人： Shinichi Nakatsuka ,  Susumu Saito ,  Akira Arimoto

发明人： Shinichi Nakatsuka ,  Susumu Saito ,  Akira Arimoto

IPC分类号： H01S5/042 ,  H01S3/08

CPC分类号： H01S5/0425 ,  H01S2301/18

摘要： A laser printer is provided printing with a high precision simply and at a high speed, and the laser printer uses a semiconductor laser which can vary the diameter of the emitted light while the light density is held constant. In the laser printer, laser rays emitted from a semiconductor laser are irradiated onto a photoconductor to vary its surface potential to produce a charge pattern particles adhere, and printing is performed by transferring the changed particles to a printing object. The semiconductor laser has a plurality of waveguide type resonators, the emitted beams of the resonators having a spatial superposition, and light emission is possible so that the emitted beams of the resonators having a spatial superposition with respect to each other among the resonators of the semiconductor laser are not substantially superimposed in time.

摘要翻译： 提供了一种激光打印机，其简单且高速地以高精度进行打印，并且激光打印机使用半导体激光器，其可以在光密度保持恒定的同时改变发射光的直径。 在激光打印机中，将从半导体激光器发射的激光照射到光电导体上以改变其表面电位以产生电荷图案颗粒粘附，并且通过将改变的颗粒转印到印刷对象来进行印刷。 半导体激光器具有多个波导型谐振器，发射的谐振器的光束具有空间叠加，并且发光是可能的，使得谐振器的发射光束在半导体的谐振器之间具有相对于彼此的空间叠加 激光器在时间上基本上没有重叠。

公开(公告)号：US5401357A

公开(公告)日：1995-03-28

申请号：US937781

申请日：1992-09-01

申请人： Hidekazu Okuhira ,  Tetsuo Ono ,  Susumu Hiraoka ,  Keizo Suzuki ,  Junji Shigeta ,  Hiroshi Masuda ,  Mitsuhiro Mori ,  Takuma Tanimoto ,  Shinichi Nakatsuka ,  Katsuhiko Mitani

发明人： Hidekazu Okuhira ,  Tetsuo Ono ,  Susumu Hiraoka ,  Keizo Suzuki ,  Junji Shigeta ,  Hiroshi Masuda ,  Mitsuhiro Mori ,  Takuma Tanimoto ,  Shinichi Nakatsuka ,  Katsuhiko Mitani

IPC分类号： H01L21/205 ,  H01L21/285 ,  H01L21/302 ,  H01L21/306 ,  H01L21/3065 ,  H01L21/308 ,  H01L21/316 ,  H01L21/331 ,  H01L21/335 ,  H01L21/338 ,  H01L29/205 ,  H01L29/73 ,  H01L29/737 ,  H01L29/778 ,  H01L29/812 ,  B44C1/22

CPC分类号： H01L29/66318 ,  H01L21/28587 ,  H01L21/30621 ,  H01L21/3081 ,  H01L21/31654 ,  H01L29/66462

摘要： A method may be used to dry etch a sample including a plurality of regions different from each other in the photo-absorption of a light having a specified wavelength using an etching gas plasma. The method is capable of selectively etching the desired material from a plurality of materials having different types of band gap energies or from a plurality of materials having different band gap energies. The method includes a step of irradiating a light having the specified wavelength on the sample for reducing an etching rate of a region having a large photo-absorption coefficient to the light, thereby selectively etching a region having a small photo-absorption coefficient to the light.

摘要翻译： 在使用蚀刻气体等离子体对具有特定波长的光的光吸收中，可以使用一种方法来干蚀刻包括彼此不同的多个区域的样品。 该方法能够从具有不同类型的带隙能量的多种材料或具有不同带隙能量的多种材料中选择性地蚀刻所需的材料。 该方法包括在样品上照射具有特定波长的光以降低对光具有大的光吸收系数的区域的蚀刻速率的步骤，从而选择性地将具有小的光吸收系数的区域蚀刻到光 。

公开(公告)号：US07888146B2

公开(公告)日：2011-02-15

申请号：US12219133

申请日：2008-07-16

申请人： Shinichi Nakatsuka

发明人： Shinichi Nakatsuka

IPC分类号： H01L21/00

CPC分类号： H01S5/4031 ,  H01S5/02268 ,  H01S5/02272

摘要： According to an aspect of the present invention, there is provided a method for assembling a semiconductor laser device, including: preparing a laser chip including: a substrate; stripe waveguides that are formed on the substrate and that each includes a gain producing area and a window area; electrodes formed on the stripe waveguides; an insulating layer formed on the electrodes; a metal layer formed on the insulating layer; projections arranged at an interval in the window areas; and joining structures connected to the electrodes and formed in the window areas; preparing a submount including: a first solder; second solders arranged at the interval; and submount electrodes connected to the second solders; contacting the laser chip to the submount by fitting the projections with respect to the second solders; and heating the submount and the laser chip.

摘要翻译： 根据本发明的一个方面，提供了一种用于组装半导体激光器件的方法，包括：准备包括：衬底的激光器芯片; 条形波导，其形成在基板上，并且每个包括增益产生区域和窗口区域; 在条形波导上形成的电极; 形成在电极上的绝缘层; 形成在所述绝缘层上的金属层; 在窗口区域间隔布置的突起; 以及连接到电极并形成在窗口区域中的接合结构; 准备一个底座，包括：第一个焊锡; 第二次焊接间隔排列; 和连接到第二焊料的底座电极; 通过将所述突起相对于所述第二焊料接合来将所述激光芯片接触所述基座; 并加热底座和激光芯片。

公开(公告)号：US07653110B2

公开(公告)日：2010-01-26

申请号：US12149040

申请日：2008-04-25

申请人： Shinichi Nakatsuka ,  Tsukuru Ootoshi

发明人： Shinichi Nakatsuka ,  Tsukuru Ootoshi

IPC分类号： H01S3/00 ,  H01S5/00

CPC分类号： H01S5/02236 ,  H01S5/0224 ,  H01S5/02272 ,  H01S5/0425 ,  H01S5/3201 ,  H01S5/4031

摘要： According to an aspect of the present invention, there is provided a semiconductor laser apparatus including: a laser device including: a semiconductor substrate, first and second resonators formed on the semiconductor substrate, and first and second electrodes that are respectively connected with the first and the second resonators and extend away from each other; and a submount including: third and fourth electrodes respectively adhered with the first and the second electrodes; wherein each of the first and the second electrodes includes: an energizing portion covering the corresponding resonator, an adhering portion being disposed separately from the energizing portion and having a height larger than that of the energizing portion, and a stress-absorbing portion formed in the adhering portion.

摘要翻译： 根据本发明的一个方面，提供一种半导体激光装置，包括：激光装置，包括：半导体衬底，形成在半导体衬底上的第一和第二谐振器，以及分别与第一和第二电极连接的第一和第二电极， 第二个谐振器彼此远离; 以及底座，其包括：分别粘附有所述第一和第二电极的第三和第四电极; 其中，所述第一电极和所述第二电极中的每一个包括：覆盖所述相应谐振器的激励部分，与所述激励部分分开设置并且具有比所述激励部分高的高度的粘附部分，以及形成在所述激励部分中的应力吸收部分 粘附部分。

公开(公告)号：US07542396B2

公开(公告)日：2009-06-02

申请号：US11209648

申请日：2005-08-24

申请人： Motoyasu Terao ,  Toshimasa Kamisada ,  Shinichi Nakatsuka ,  Takeshi Shimano ,  Hitoshi Ishii ,  Kazuhiro Soga ,  Yoshiaki Ogino

发明人： Motoyasu Terao ,  Toshimasa Kamisada ,  Shinichi Nakatsuka ,  Takeshi Shimano ,  Hitoshi Ishii ,  Kazuhiro Soga ,  Yoshiaki Ogino

IPC分类号： G11B7/00

CPC分类号： G11B7/1367 ,  G11B7/0938 ,  G11B7/127 ,  G11B2007/0009

摘要： To achieve stable, high capacity, high speed recording. Of two light beams emitted from a light irradiation means, one or two beams are made pass through an optical path changeable member whereof at least one of the thickness and refractive index changes continuously or in two or more steps immediately after emission from the light irradiation means, so that a difference is introduced into the optical path length of the two beams, and the focusing point of one beam is made to vary to coincide with a position in the recording layer used for playback or recording. Another light beam is used for servo. Converging of light during recording or read of a multilayer recording medium is performed with higher precision than in the prior art, so higher density, higher capacity recording/playback can be performed.

摘要翻译： 要实现稳定，高容量，高速录音。 在从光照射装置发射的两束光束中，使一束或两束光束通过光路可变构件，其中厚度和折射率中的至少一个连续地或者在从光照射装置发射之后立即改变两个或更多个步骤 ，从而在两个光束的光程长度上引入差异，并且使一个光束的聚焦点变化以与用于回放或记录的记录层中的位置一致。 另一光束用于伺服。 以比现有技术更高的精度执行多层记录介质的记录或读取期间的光的会聚，因此可以执行更高密度，更高容量的记录/重放。

公开(公告)号：US20050169329A1

公开(公告)日：2005-08-04

申请号：US10871280

申请日：2004-06-21

申请人： Shinichi Nakatsuka ,  Jyunshin Sakamoto ,  Hiroshi Inenaga ,  Susumu Saito

发明人： Shinichi Nakatsuka ,  Jyunshin Sakamoto ,  Hiroshi Inenaga ,  Susumu Saito

IPC分类号： B41J2/44 ,  G06K15/12 ,  H01S3/00 ,  H01S5/042 ,  H01S5/068 ,  H01S5/22 ,  H01S5/223 ,  H01S5/30 ,  H01S5/343 ,  H01S5/40

CPC分类号： B82Y20/00 ,  G06K15/1209 ,  H01S5/042 ,  H01S5/06808 ,  H01S5/2206 ,  H01S5/2231 ,  H01S5/305 ,  H01S5/3095 ,  H01S5/34326 ,  H01S5/34333 ,  H01S5/34353 ,  H01S5/3436 ,  H01S5/4031

摘要： When a semiconductor laser is energized, a virtual junction temperature rises to reduce a threshold current, which fluctuates a light output by the unit of a several microseconds, thereby causing printing irregularity. An object of the invention is to prevent the fluctuation in light output occurring due to the temperature change caused by the energization of the semiconductor laser with a simple circuit structure and under the driving condition of a small bias current. A constant voltage driving is performed with a circuit or device having negative resistance characteristics being arranged In series with the semiconductor laser. Thus, the reduction in light output of the semiconductor laser due to the temperature rise is compensated for by an increase in driving current thanks to a reduction in rising voltage of current/voltage characteristics.

摘要翻译： 当半导体激光器通电时，虚拟结温度上升以减小阈值电流，其使光输出以几微秒为单位波动，从而导致印刷不规则。 本发明的目的是为了防止由于由简单的电路结构的半导体激光器的激励引起的温度变化和在小的偏置电流的驱动条件下产生的光输出的波动。 利用具有负电阻特性的电路或器件与半导体激光器串联地进行恒压驱动。 因此，由于电流/电压特性的上升电压的降低，由于温度升高导致的半导体激光器的光输出的减少被驱动电流的增加所补偿。

公开(公告)号：US20080279246A1

公开(公告)日：2008-11-13

申请号：US12149040

申请日：2008-04-25

申请人： Shinichi Nakatsuka ,  Tsukuru Ootoshi

发明人： Shinichi Nakatsuka ,  Tsukuru Ootoshi

IPC分类号： H01S5/00

CPC分类号： H01S5/02236 ,  H01S5/0224 ,  H01S5/02272 ,  H01S5/0425 ,  H01S5/3201 ,  H01S5/4031

摘要： According to an aspect of the present invention, there is provided a semiconductor laser apparatus including: a laser device including: a semiconductor substrate, first and second resonators formed on the semiconductor substrate, and first and second electrodes that are respectively connected with the first and the second resonators and extend away from each other; and a submount including: third and fourth electrodes respectively adhered with the first and the second electrodes; wherein each of the first and the second electrodes includes: an energizing portion covering the corresponding resonator, an adhering portion being disposed separately from the energizing portion and having a height larger than that of the energizing portion, and a stress-absorbing portion formed in the adhering portion.

摘要翻译： 根据本发明的一个方面，提供一种半导体激光装置，包括：激光装置，包括：半导体衬底，形成在半导体衬底上的第一和第二谐振器，以及分别与第一和第二电极连接的第一和第二电极， 第二个谐振器彼此远离; 以及底座，其包括：分别粘附有所述第一和第二电极的第三和第四电极; 其中，所述第一电极和所述第二电极中的每一个包括：覆盖所述相应谐振器的激励部分，与所述激励部分分开设置并且具有比所述激励部分高的高度的粘附部分，以及形成在所述激励部分中的应力吸收部分 粘附部分。

公开(公告)号：US20060227670A1

公开(公告)日：2006-10-12

申请号：US11209648

申请日：2005-08-24

申请人： Motoyasu Terao ,  Toshimasa Kamisada ,  Shinichi Nakatsuka ,  Takeshi Shimano ,  Hitoshi Ishii ,  Kazuhiro Soga ,  Yoshiaki Ogino

发明人： Motoyasu Terao ,  Toshimasa Kamisada ,  Shinichi Nakatsuka ,  Takeshi Shimano ,  Hitoshi Ishii ,  Kazuhiro Soga ,  Yoshiaki Ogino

IPC分类号： G11B11/00

CPC分类号： G11B7/1367 ,  G11B7/0938 ,  G11B7/127 ,  G11B2007/0009

摘要： To achieve stable, high capacity, high speed recording. Of two light beams emitted from a light irradiation means, one or two beams are made pass through an optical path changeable member whereof at least one of the thickness and refractive index changes continuously or in two or more steps immediately after emission from the light irradiation means, so that a difference is introduced into the optical path length of the two beams, and the focusing point of one beam is made to vary to coincide with a position in the recording layer used for playback or recording. Another light beam is used for servo. Converging of light during recording or read of a multilayer recording medium is performed with higher precision than in the prior art, so higher density, higher capacity recording/playback can be performed.

公开(公告)号：US20060007977A1

公开(公告)日：2006-01-12

申请号：US11174621

申请日：2005-07-06

申请人： Shinichi Nakatsuka

发明人： Shinichi Nakatsuka

IPC分类号： H01S5/00

CPC分类号： B82Y20/00 ,  H01S5/0224 ,  H01S5/02272 ,  H01S5/02276 ,  H01S5/026 ,  H01S5/162 ,  H01S5/2201 ,  H01S5/2214 ,  H01S5/2231 ,  H01S5/3054 ,  H01S5/34326 ,  H01S5/3436 ,  H01S5/4031 ,  H01S2301/176

摘要： In a semiconductor laser diode array, first electrodes of a laser chip are coated with an insulating substance, and contact holes are formed in the insulating substance. The laser chip is assembled by being secured on a submount while facing downward, wherein electrodes and a solder pattern are provided in the submount in a direction crossing resonators.