公开(公告)号：US4603419A

公开(公告)日：1986-07-29

申请号：US768144

申请日：1985-08-22

申请人： Hirokazu Shimizu ,  Kunio Itoh ,  Takashi Sugino ,  Masaru Wada

发明人： Hirokazu Shimizu ,  Kunio Itoh ,  Takashi Sugino ,  Masaru Wada

IPC分类号： H01S5/00 ,  H01L21/60 ,  H01S5/02 ,  H01S3/045

CPC分类号： H01S5/02252 ,  H01L2224/32057 ,  H01L2224/83385 ,  H01L2224/83801 ,  H01L24/31 ,  H01L24/83 ,  H01L2924/01014 ,  H01L2924/12042

摘要： A mounting of semiconductor laser chip on a heat sink or metal mount is improved so as to enable high accuracy of position and direction. A heat sink or metal mount, on which a semiconductor laser chip is mounted, comprises two parts, namely a main mount or larger portion and a sub-mount or smaller portion. The semiconductor laser chip is soldered by a solder layer on the sub-mount utilizing a microscope so as to assure an accurate position and an accurate direction with respect to the sub-mount. Then, the sub-mount is soldered on the main mount by a solder layer with an accurate relation both in position and direction by engaging a linear ridge as a first engaging means provided on the upper face of the main mount with a straight groove and a rear end face as a second engaging means. As a result of the above-mentioned structure, accurate position and direction of the semiconductor laser chip with respect to the mount is easily obtainable with a high yield.

摘要翻译： 提高半导体激光芯片在散热片或金属安装座上的安装，以实现高精度的位置和方向。 安装有半导体激光芯片的散热器或金属安装件包括两部分，即主安装件或更大部分以及副安装件或更小部件。 利用显微镜将半导体激光芯片通过焊接层焊接在子座上，以确保相对于子安装座的精确位置和准确的方向。 然后，通过将位于主要安装座的上表面上设置的第一接合装置的直线状脊线与直槽相啮合，通过焊接层将焊接层焊接在主安装座上，焊接层的位置和方向都精确， 后端面作为第二接合装置。 作为上述结构的结果，可以容易地以高产率获得半导体激光器芯片相对于安装座的精确位置和方向。

公开(公告)号：USD280340S

公开(公告)日：1985-08-27

申请号：US450740

申请日：1982-12-17

申请人： Masaru Wada

设计人： Masaru Wada

公开(公告)号：US4488304A

公开(公告)日：1984-12-11

申请号：US583784

申请日：1984-02-29

申请人： Hirokazu Shimizu ,  Kunio Itoh ,  Masaru Wada ,  Takashi Sugino ,  Takako Okabe

发明人： Hirokazu Shimizu ,  Kunio Itoh ,  Masaru Wada ,  Takashi Sugino ,  Takako Okabe

IPC分类号： H01S5/00 ,  H01S5/02 ,  H01S5/022 ,  H01S3/04

CPC分类号： H01S5/02 ,  H01S5/02236

摘要： A stem for a semiconductor laser device of a terraced substrate structure which has a tilted active layer against flat parts of the substrate, the stem comprises a base plate and a heat sink block, a flat face of the heat sink block for bonding the semiconductor laser device thereonto is tilted with respect to a base face of the base plate; this stem has features that the polarization direction of the lased light from the semiconductor laser device can be set to be parallel to (or perpendicular to) the base face of the base plate, and therefore it becomes much easier to make adjustments related with the polarization direction of the lased light.

摘要翻译： 一种用于梯形衬底结构的半导体激光器件的杆，其具有抵抗所述衬底的平坦部分的倾斜的有源层，所述杆包括基板和散热块，所述散热块的平坦表面用于接合所述半导体激光器 装置相对于基板的基面倾斜; 该杆具有使得来自半导体激光装置的带激光的偏振方向能够设定为与基板的基面平行（或垂直）的特征，因此与极化相关的调整变得容易一些 灯光方向。

公开(公告)号：US4456999A

公开(公告)日：1984-06-26

申请号：US270352

申请日：1981-06-04

申请人： Takashi Sugino ,  Kunio Itoh ,  Masaru Wada ,  Hirokazu Shimizu

发明人： Takashi Sugino ,  Kunio Itoh ,  Masaru Wada ,  Hirokazu Shimizu

IPC分类号： H01S5/00 ,  H01S5/223 ,  H01S3/19

CPC分类号： H01S5/2238

摘要： A terrace-substrate laser is improved by forming a stripe-shaped impurity diffused current-injection region (27) from the cap layer (25) at least so as to reach the oblique lasing region (231) of the active layer (23), so that the corner part of the current injection region (27) touches the lasing region (231); thereby current injection efficiency to the lasing region is highly improved and the injected current is effectively limited in the oblique lasing region even when a large current is injected, and furthermore, a threshold current can be greatly reduced. This laser can perform a stable fundamental transverse mode oscillation even at a large current operation.

摘要翻译： 至少通过从盖层（25）形成条形杂质扩散电流注入区域（27）至达到有源层（23）的倾斜激光区域（231）来改善平台 - 衬底激光器， 使得电流注入区域（27）的拐角部分接触激光区域（231）; 因此即使在注入大电流的情况下，对激光区域的电流注入效率高度提高，并且在斜激光区域有效地限制注入电流，此外，可以大大降低阈值电流。 该激光器即使在大电流操作下也可以执行稳定的基本横模振荡。

公开(公告)号：US4392227A

公开(公告)日：1983-07-05

申请号：US224821

申请日：1981-01-13

申请人： Kunio Itoh ,  Takashi Sugino ,  Masaru Wada ,  Hirokazu Shimizu

发明人： Kunio Itoh ,  Takashi Sugino ,  Masaru Wada ,  Hirokazu Shimizu

IPC分类号： H01S5/20 ,  H01S5/223 ,  H01S5/32 ,  H01S5/323 ,  H01S3/19

CPC分类号： H01S5/2238 ,  H01S5/2059 ,  H01S5/3201 ,  H01S5/32308

摘要： In a terraced substrate type semiconductor laser comprising a semiconductor substrate (11) having a step (T) on its principal face, an active layer (13) with an oblique central region (131), defined between two bendings, as stripe-shaped lasing region near the foot of the step part (T) of the substrate (11), and a clad layer (14) formed on the active layer (13),The device is characterized by comprising a current injection region (22) which is formed by diffusing an impurity, in a manner that a diffusion front corner (221) penetrate the clad layer (14) and contacts the oblique lasing region (131) thereby to form the current injection path (221) very narrow and closely to the central part of the stripe-shaped lasing region (13), thereby effectively confining the injected current to the lasing region (131) and hence attaining very low threshold current and very high external differential quantum efficiency.

摘要翻译： 在包括在其主面上具有台阶（T）的半导体衬底（11）的梯形衬底型半导体激光器中，具有定义在两个弯曲部之间的倾斜中心区域（131）的有源层（13）作为条形激光 （11）的台阶部（T）的脚附近的区域，以及形成在有源层（13）上的包层（14）。该器件的特征在于包括形成有电流注入区域（22）的电流注入区域 通过以扩散前角（221）穿透包覆层（14）并与斜激光区域（131）接触的方式扩散杂质，从而形成非常窄且紧密相对于中心部分的电流注入路径（221） 由此有效地将注入的电流限制到激光区域（131），从而获得非常低的阈值电流和非常高的外部微分量子效率。

公开(公告)号：US4360920A

公开(公告)日：1982-11-23

申请号：US185922

申请日：1980-09-10

申请人： Masaru Wada ,  Hirokazu Shimizu ,  Takashi Sugino ,  Kunio Itoh

发明人： Masaru Wada ,  Hirokazu Shimizu ,  Takashi Sugino ,  Kunio Itoh

IPC分类号： H01L21/306 ,  H01L21/208 ,  H01S5/00 ,  H01S5/223 ,  H01S3/19

CPC分类号： H01S5/2238

摘要： In a semiconductor laser a semiconductor substrate has a terrace structure in a manner to have an upper face, a lower face, and a step part disposed between the upper and lower faces. A clad layer is formed on the semiconductor substrate having an upper part, a lower part, and a central part. The upper part is on the upper face and the step part. The lower part is on the lower face and the central part connecting the upper and lower parts and is thicker than the upper and lower parts in a manner that a step-shaped downward-bending surface of the central part is located above the lower face. An active layer formed on the clad layer includes an upper lateral part, a lower lateral part, a center part connecting the upper and lower lateral parts, with a lasing region being a part of the upper lateral part which is near a bending part of the step-shaped downward-bending surface.

摘要翻译： 在半导体激光器中，半导体衬底具有以上表面，下表面和设置在上表面和下表面之间的台阶部分的方式设置的露台结构。 在具有上部，下部和中心部的半导体基板上形成包覆层。 上部位于上表面和台阶部分。 下部位于下表面，中央部分连接上部和下部，并且比中部的台阶向下弯曲表面位于下表面上方更厚于上部和下部。 形成在包层上的有源层包括上侧部分，下侧部分，连接上下侧部分的中心部分，激光区域是上侧部分的靠近弯曲部分的一部分 台阶向下弯曲面。

公开(公告)号：US07928151B2

公开(公告)日：2011-04-19

申请号：US12282375

申请日：2006-12-11

申请人： Daiki Oniyanagi ,  Masaru Wada ,  Yoshirou Oowada ,  Tetsurou Saikawa

发明人： Daiki Oniyanagi ,  Masaru Wada ,  Yoshirou Oowada ,  Tetsurou Saikawa

IPC分类号： B22C1/22

CPC分类号： B22C1/2253 ,  B22C1/185

摘要： A resin composition for a shell mold which reduces smoke generation upon molding of a casting mold and maintains a crumbility and a casting mold strength of a phenolic resin, and resin coated sand by the use thereof are provided. The resin composition for the shell mold includes the phenolic resin and an aromatic condensed phosphate ester. The phenolic resin is used as a binder of the resin coated sand used for producing a main mold and a core for shell mold casting of cast iron, cast steel, aluminum, and the like. The aromatic condensed phosphate ester is very effective as a crumbling agent for improving the crumbility of the casting mold after casting.

摘要翻译： 本发明提供了一种用于壳模的树脂组合物，其在模制成型时减少了烟雾产生，并且通过使用该树脂组合物保持了酚醛树脂和树脂涂覆砂的破碎性和铸模强度。 用于壳模的树脂组合物包括酚醛树脂和芳族缩合磷酸酯。 酚醛树脂用作用于生产主模的用于树脂涂覆的砂的粘合剂和用于铸铁，铸钢，铝等的壳模铸造的芯。 芳族缩合磷酸酯作为粉碎剂非常有效，用于改善铸造后的铸模的破碎性。

公开(公告)号：US20100093045A1

公开(公告)日：2010-04-15

申请号：US12635404

申请日：2009-12-10

申请人： Hiroshi Takagi ,  Shigeru Nakamori ,  Masaru Wada ,  Hirotada Mori

发明人： Hiroshi Takagi ,  Shigeru Nakamori ,  Masaru Wada ,  Hirotada Mori

IPC分类号： C12P13/12

CPC分类号： C12P13/12

摘要： L-cysteine is produced by culturing an Escherichia bacterium having L-cysteine producing ability and containing a gene encoding an O-acetylserine sulphydrylase B or MalY regulatory protein that is modified so that cysteine desulfhydrase activity is reduced or eliminated. The bacterium is cultured in a medium to produce and cause accumulation of L-cysteine in the medium, and collecting L-cysteine from the medium.

摘要翻译： 通过培养具有L-半胱氨酸生产能力的埃希氏菌属细菌并含有编码O-乙酰丝氨酸巯基酶B或MalY调节蛋白的基因来产生L-半胱氨酸，所述基因被修饰以使得半胱氨酸脱硫酸酶活性被降低或消除。 将细菌培养在培养基中以产生并引起培养基中L-半胱氨酸的积累，并从培养基中收集L-半胱氨酸。

公开(公告)号：US20090093567A1

公开(公告)日：2009-04-09

申请号：US12282375

申请日：2006-12-11

申请人： Daiki Oniyanagi ,  Masaru Wada ,  Yoshirou Oowada ,  Tetsurou Saikawa

发明人： Daiki Oniyanagi ,  Masaru Wada ,  Yoshirou Oowada ,  Tetsurou Saikawa

IPC分类号： B22C1/22

CPC分类号： B22C1/2253 ,  B22C1/185

摘要： A resin composition for a shell mold which reduces smoke generation upon molding of a casting mold and maintains a crumbility and a casting mold strength of a phenolic resin, and resin coated sand by the use thereof are provided. The resin composition for the shell mold includes the phenolic resin and an aromatic condensed phosphate ester. The phenolic resin is used as a binder of the resin coated sand used for producing a main mold and a core for shell mold casting of cast iron, cast steel, aluminum, and the like. The aromatic condensed phosphate ester is very effective as a crumbling agent for improving the crumbility of the casting mold after casting.

摘要翻译： 本发明提供了一种用于壳模的树脂组合物，其在模制成型时减少了烟雾产生，并且通过使用该树脂组合物保持了酚醛树脂和树脂涂覆砂的破碎性和铸模强度。 用于壳模的树脂组合物包括酚醛树脂和芳族缩合磷酸酯。 酚醛树脂用作用于生产主模的用于树脂涂覆的砂的粘合剂和用于铸铁，铸钢，铝等的壳模铸造的芯。 芳族缩合磷酸酯作为粉碎剂非常有效，用于改善铸造后的铸模的破碎性。

公开(公告)号：US20080076163A1

公开(公告)日：2008-03-27

申请号：US11070084

申请日：2005-03-03

申请人： Hiroshi Takagi ,  Shigeru Nakamori ,  Masaru Wada ,  Hirotada Mori

发明人： Hiroshi Takagi ,  Shigeru Nakamori ,  Masaru Wada ,  Hirotada Mori

IPC分类号： C12P13/12 ,  C12N1/21

CPC分类号： C12P13/12

摘要： L-cysteine is produced by culturing an Escherichia bacterium having L-cysteine producing ability and containing a gene encoding an O-acetylserine sulphydrylase B or MalY regulatory protein that is modified so that cysteine desulfhydrase activity is reduced or eliminated. The bacterium is cultured in a medium to produce and cause accumulation of L-cysteine in the medium, and collecting L-cysteine from the medium.

摘要翻译： 通过培养具有L-半胱氨酸生产能力的埃希氏菌属细菌并含有编码O-乙酰丝氨酸巯基酶B或MalY调节蛋白的基因来产生L-半胱氨酸，所述基因被修饰以使得半胱氨酸脱硫酸酶活性被降低或消除。 将细菌培养在培养基中以产生并引起培养基中L-半胱氨酸的积累，并从培养基中收集L-半胱氨酸。