公开(公告)号：US06195480B1

公开(公告)日：2001-02-27

申请号：US09129844

申请日：1998-08-06

申请人： Junya Kosaka ,  Takayuki Suzuki ,  Hiroyuki Nakano

发明人： Junya Kosaka ,  Takayuki Suzuki ,  Hiroyuki Nakano

IPC分类号： G02B628

CPC分类号： H04B10/2935 ,  H04B2210/256 ,  Y10S372/703

摘要： An optical transmission device which reduces optical noise in an optical transmission system. The optical transmission device includes a core light amplifying unit, and a first buffer light amplifying unit for amplifying a first signal light from a first transmission path and an amplified second signal light from the core light amplifying unit. The first buffer light amplifying unit supplies the core light amplifying unit with the first signal light, and supplies the first transmission path with the amplified second signal light. Also provided is a second buffer light amplifying unit for amplifying a second signal light from a second transmission path and an amplified first signal light from the core light amplifying unit. The second buffer light amplifying unit supplies the core light amplifying unit with the second signal light, and supplies the second transmission path with the amplified first signal light.

公开(公告)号：US6123350A

公开(公告)日：2000-09-26

申请号：US970157

申请日：1997-11-13

申请人： Takayuki Suzuki

发明人： Takayuki Suzuki

IPC分类号： B60G13/16 ,  B60G15/06 ,  F16F9/32 ,  F16F15/02 ,  B60G13/00

CPC分类号： B60G15/062 ,  B60G13/16 ,  B60G2204/4305

摘要： In order to damp vibration which are generated by rotating members such as wheels, drive shafts and the like, a vibration damper, preferably a dynamic damper, is mounted on the shock absorbers at a location which is essentially mid-way between the lower end thereof. This places the damper a location corresponding to an antinode of a vibration waveform which transmitted through the shock absorbers and which tends to cause annoying cabin reverberation noise and thus increases the effect with which vibration is attenuated. An advantageous mounting site for the damper is on the lower spring seat of the shock absorber.

摘要翻译： 为了减轻由诸如车轮，驱动轴等的旋转部件产生的振动，减振器（优选地是动力阻尼器）安装在减震器上，该位置基本上位于其下端 。 这将减震器放置在与通过减震器传递的振动波形的波腹相对应的位置，并且容易引起令人讨厌的舱内混响噪音，从而增加振动衰减的效果。 阻尼器的有利的安装位置在减震器的下弹簧座上。

公开(公告)号：US6031121A

公开(公告)日：2000-02-29

申请号：US249848

申请日：1999-02-16

申请人： Takayuki Suzuki ,  Takayuki Hamada ,  Kunisuke Izawa

发明人： Takayuki Suzuki ,  Takayuki Hamada ,  Kunisuke Izawa

IPC分类号： C07C303/28 ,  C07C309/66 ,  C07C309/73 ,  C07C327/32 ,  C07C327/20

CPC分类号： C07C327/32 ,  C07C303/28

摘要： Optically active N-(S-2-acetylthiomethyl-1-oxo-3-phenylpropyl)-glycine benzyl ester useful as an enkephalin inhibitory agent or ACE inhibitory agent can be produced at low cost in an industrial manner, by a method comprising subjecting optically active 2-hydroxymethyl-3-phenylpropionic acid and glycine benzyl ester to condensation to subsequently convert the hydroxyl group into an elimination group, and substituting the elimination group with an acetylthio group.

公开(公告)号：US5993037A

公开(公告)日：1999-11-30

申请号：US144491

申请日：1998-08-31

申请人： Makoto Tomioka ,  Akira Hasegawa ,  Shinya Matsumoto ,  Takayuki Suzuki

发明人： Makoto Tomioka ,  Akira Hasegawa ,  Shinya Matsumoto ,  Takayuki Suzuki

IPC分类号： A61B1/04 ,  F21V7/04

CPC分类号： A61B1/0638 ,  A61B1/0646 ,  A61B1/0669

摘要： A light source device for endoscopes includes a light source for emitting white light containing the components of light belonging to a visible region and wavelength bands other than the visible region; at least, a rotary color separating filter on a field sequential system; and an infrared cutoff filter for blocking light in an infrared region, of a wavelength band of the white light. When the rotary color separating filter is disposed in an optical path from the light source to a light guide, an interference filter in which an interference film is applied to a transparent base plate is placed in the optical path. This arrangement obviates the defect of burning the entrance end of the light guide or of breaking the infrared cutoff filter.

公开(公告)号：US5943162A

公开(公告)日：1999-08-24

申请号：US185095

申请日：1998-11-03

申请人： Junya Kosaka ,  Takayuki Suzuki ,  Hideyuki Kuwano

发明人： Junya Kosaka ,  Takayuki Suzuki ,  Hideyuki Kuwano

IPC分类号： G02F1/35 ,  G02B6/28 ,  H01S3/06 ,  H01S3/067 ,  H01S3/07 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/10 ,  H04B10/2543 ,  H04B10/296 ,  H04B10/297 ,  H04J14/00 ,  H04J14/02 ,  H01S3/00

CPC分类号： H01S3/094003 ,  H04B10/2572 ,  H04B10/291 ,  H04B10/2931 ,  H04J14/0221 ,  H01S3/06712

摘要： An optical amplifier including an input unit, a polarization maintaining optical amplifying unit, an exciting unit and an output unit. The input unit enables receiving a first signal light in a first polarization state and a second signal light in a second polarization state different from the first polarization state. The polarization maintaining optical amplifying unit includes a polarization maintaining optical amplifying medium enabling receiving the first and second signal lights with the first and second polarization states maintained as they are. The exciting unit provides first and second exiting lights having polarization states corresponding to the first and second lights, respectively, so that the polarization maintaining optical amplifying unit is capable of selectively amplifying the first and second signal lights, and the output unit enables receiving the first and second signal lights after being amplified by the polarization maintaining optical amplifying unit and outputting the amplified first and second signal lights to a transmission line.

摘要翻译： 一种光放大器，包括输入单元，偏振保持光放大单元，激励单元和输出单元。 输入单元能够接收第一偏振态的第一信号光和不同于第一偏振状态的第二偏振状态的第二信号光。 偏振维持光放大单元包括一个保持光放大介质，能够接收第一和第二极化状态原样保持的第一和第二信号光。 励磁单元分别提供具有对应于第一和第二光的偏振状态的第一和第二出射光，使得偏振保持光放大单元能够选择性地放大第一和第二信号光，并且输出单元能够接收第一和第二光 以及第二信号光，在被偏振保持光放大单元放大之后，将放大的第一和第二信号光输出到传输线。

公开(公告)号：US5936772A

公开(公告)日：1999-08-10

申请号：US31052

申请日：1998-02-26

申请人： Takayuki Suzuki

发明人： Takayuki Suzuki

IPC分类号： G02B23/26 ,  A61B1/07 ,  G02B19/00 ,  G02B23/24 ,  G02B27/10 ,  A61B1/00 ,  A61B17/36

CPC分类号： A61B1/07 ,  A61B1/0669 ,  G02B23/2469

摘要： A light source optical system for endoscopes includes an elliptical condensing mirror projecting a bright spot of the light-emitting section of a lamp and a relay optical system transmitting the projected image of the bright spot to the entrance end face of a light guide. The elliptical condensing mirror is designed to satisfy the following condition:2.0 mm

摘要翻译： 用于内窥镜的光源光学系统包括：投射灯的发光部的亮点的椭圆聚光镜和将亮点的投射图像传输到光导入射端面的中继光学系统。 椭圆聚光镜设计满足以下条件：2.0 mm

公开(公告)号：US5902887A

公开(公告)日：1999-05-11

申请号：US59370

申请日：1998-04-14

申请人： Yutaka Honda ,  Satoshi Katayama ,  Kunisuke Izawa ,  Masakazu Nakazawa ,  Takayuki Suzuki ,  Naoko Kanno

发明人： Yutaka Honda ,  Satoshi Katayama ,  Kunisuke Izawa ,  Masakazu Nakazawa ,  Takayuki Suzuki ,  Naoko Kanno

IPC分类号： C07C221/00 ,  C07C223/02 ,  C07C227/16 ,  C07C227/32 ,  C07C229/22 ,  C07C229/34 ,  C07C269/06 ,  C07C271/22 ,  C07C319/20 ,  C07C323/43 ,  C07D307/20 ,  C07C219/04

CPC分类号： C07C271/22 ,  C07C221/00 ,  C07C227/16 ,  C07C227/32 ,  C07C229/22 ,  C07C229/34 ,  C07C269/06 ,  C07C319/20 ,  C07C323/43 ,  Y02P20/55

摘要： Compounds formed by reacting a protected amino acid with an alkali metal enolate of an alkyl acetate are reacted with a halogenating agent for halogenation of the 2-position, or a protected amino acid is reacted with an alkali metal enolate of an alkyl halogenoacetate, to form a 4-amino-3-oxo-2-halogenobutanoic acid ester derivative, and hydrolysis and decarboxylation are conducted to produce a 3-amino-2-oxo-1-halogenopropane derivative or its salt. The present method is a useful process for producing a 3-amino-2-oxo-1-halogenopropane derivatives which can easily be converted to a 3-amino-1,2-epoxypropane.

摘要翻译： 通过将保护的氨基酸与乙酸烷基酯的碱金属烯醇化物反应形成的化合物与用于2-位卤化的卤化剂反应，或将保护的氨基酸与卤代乙酸烷基酯的碱金属烯醇化物反应形成 4-氨基-3-氧代-2-卤代丁酸酯衍生物，并进行水解和脱羧以产生3-氨基-2-氧代-1-卤代丙烷衍生物或其盐。 本发明的方法是可以容易地转化为3-氨基-1,2-环氧丙烷的3-氨基-2-氧代-1-卤代丙烷衍生物的有用方法。

公开(公告)号：US5883284A

公开(公告)日：1999-03-16

申请号：US98538

申请日：1998-06-17

申请人： Takayuki Suzuki ,  Yutaka Honda ,  Kunisuke Izawa

发明人： Takayuki Suzuki ,  Yutaka Honda ,  Kunisuke Izawa

IPC分类号： C07C317/28 ,  C07C323/29 ,  C07C327/30 ,  C07C323/43 ,  C07C323/25 ,  C07C323/41

CPC分类号： C07C323/29 ,  C07C317/28 ,  C07C327/30

摘要： The present invention provides a simple and inexpensive method for producing .alpha.-hydroxy-.beta.-aminocarboxylic acids and their esters.An ester of an N-protected .alpha.-amino acid ester is converted into a .beta.-ketosulfoxide, which is then processed with an acid to give an .alpha.-ketohemimercaptal. Next, this is acylated and then processed with a base to obtain an N-protected .alpha.-acyloxy-.beta.-amino-thioester, which is then saponified to obtain an intended compound. According to the method of the present invention, it is possible to produce .alpha.-hydroxy-.beta.-aminocarboxylic acid derivatives, which are intermediates in producing various HIV protease inhibitors, renin inhibitors and carcinostatics, from a-amino acids. The method comprises reduced reaction steps, the selectivity in the method to give the intended product is high, and the yield of the product obtained is high.

摘要翻译： 本发明提供了用于生产α-羟基-β-氨基羧酸及其酯的简单和便宜的方法。 将N-保护的α-氨基酸酯的酯转化成β-酮亚砜，然后用酸处理，得到α-酮基二巯基。 接下来，将其进行酰化，然后用碱处理，得到N-保护的α-酰氧基-β-氨基 - 硫代酯，然后皂化，得到目标化合物。 根据本发明的方法，可以生产α-羟基-β-氨基羧酸衍生物，它们是从α-氨基酸生产各种HIV蛋白酶抑制剂，肾素抑制剂和制癌剂的中间体。 该方法包括减少反应步骤，得到所需产物的方法中的选择性高，所得产物的产率高。

公开(公告)号：US5826479A

公开(公告)日：1998-10-27

申请号：US712799

申请日：1996-09-12

申请人： Takayuki Suzuki ,  Yoshimitsu Yamaguchi ,  Masahiro Asano

发明人： Takayuki Suzuki ,  Yoshimitsu Yamaguchi ,  Masahiro Asano

IPC分类号： B23D15/12 ,  B23D21/00 ,  B23D25/04 ,  B26D1/56

CPC分类号： B23D21/00 ,  B23D25/04 ,  Y10T83/4757 ,  Y10T83/4812 ,  Y10T83/8874

摘要： A cutting device capable of obtaining high speeds, approximately three times faster than known cutting devices by using a structure employing an internal positive cam. A rotary slider rotates upon rotation of a spline shaft via a gearbox, and the operation is such that a track of a wedge-shaped blade tip of a male cutter lies along a workpiece via cam followers slidably rotating over a sliding surface of an internal positive cam, cutting the workpiece.

摘要翻译： 一种能够获得高速度的切割装置，通过使用采用内部正凸轮的结构，比已知的切割装置快三倍。 旋转滑块通过齿轮箱在花键轴的旋转时旋转，并且操作使得雄性切割器的楔形叶片尖端的轨道沿着工件通过在内部正面的滑动表面上可滑动地旋转的凸轮从动件 凸轮，切割工件。

公开(公告)号：US5754364A

公开(公告)日：1998-05-19

申请号：US262670

申请日：1994-06-20

申请人： Tsutomu Tanaka ,  Takayuki Suzuki ,  Seiichi Baba ,  Hiroshi Katou ,  Keisuke Yamaoka

发明人： Tsutomu Tanaka ,  Takayuki Suzuki ,  Seiichi Baba ,  Hiroshi Katou ,  Keisuke Yamaoka

IPC分类号： G11B5/49 ,  G11B5/48 ,  G11B21/12 ,  G11B21/16 ,  G11B25/04 ,  G11B33/10

CPC分类号： G11B33/10 ,  G11B25/043 ,  G11B5/4806 ,  G11B5/4813

摘要： An apparatus having a magnetic head assembly including a plurality of arms each arm having a magnetic head fixed to a nose portion thereof and a magnetic disk unit having a plurality of magnetic disks mounted on a rotating shaft. The spacing between adjacent magnetic disks being set at a value corresponding to the thicknesses of the magnetic heads fixed to two of the arms, plus the thickness of the two arms, plus a rotating gap of the magnetic heads, plus a space of 0.1 mm or less. Further included is a disk height measuring device and a head measuring device for measuring the heights of the disks and the magnetic heads. An expansion device expands the spacing between the adjacent arms. The spacing between the adjacent arms being expanded an appropriate amount to provide optimal operation of the magnetic disk apparatus.

摘要翻译： 一种具有磁头组件的装置，包括多个臂，每个臂具有固定到其鼻部的磁头和具有安装在旋转轴上的多个磁盘的磁盘单元。 相邻磁盘之间的间隔被设定为与固定到两个臂上的磁头的厚度相对应的值，加上两个臂的厚度，加上磁头的旋转间隙，加上0.1mm的空间， 减。 还包括盘高度测量装置和用于测量盘和磁头高度的头测量装置。 膨胀装置扩大相邻臂之间的间距。 相邻臂之间的间隔膨胀适当的量以提供磁盘装置的最佳操作。