公开(公告)号：US5848208A

公开(公告)日：1998-12-08

申请号：US893145

申请日：1997-07-15

申请人： Fumio Suzuki ,  Hideki Sasaki ,  Shigefumi Yamasaki ,  Tomio Abiru ,  Ryozo Yamauchi

发明人： Fumio Suzuki ,  Hideki Sasaki ,  Shigefumi Yamasaki ,  Tomio Abiru ,  Ryozo Yamauchi

IPC分类号： G02B6/28 ,  G02B6/26

CPC分类号： G02B6/2835

摘要： In an optical-fiber coupler formed by disposing two single-mode optical fibers 1 and 2 in parallel, and fusing and elongating the optical fibers at one position in the longitudinal extent of the optical fibers 1 and 2, variation of insertion loss dependent on the polarization can be eliminated in its manufacturing by imparting a twist to the optical coupling part 3' of the fused-elongated portion 3 so that with respect to the direction of a line on a plane orthogonally intersecting the longitudinal direction of the optical fibers 1 and 2, the line linking the centers of the two optical fibers 1 and 2, the direction of the line on a plane at one end of the optical coupling part 3' of the fused-elongated portion 3 makes an angle of 90 degrees with the direction of the line on a plane at the other end of the optical coupling part 3'.

摘要翻译： 在通过平行设置两个单模光纤1和2而形成的光纤耦合器中，并且在光纤1和2的纵向范围内的一个位置处将光纤熔合和伸长，插入损耗的变化取决于 通过对熔融拉长部3的光耦合部3'施加扭曲，使得相对于与光纤1,2的纵向方向正交的平面上的线的方向，可以消除极化 连接两个光纤1和2的中心的线，在熔融拉长部分3的光耦合部分3'的一端的平面上的线的方向与90°的方向成为 在光耦合部分3'的另一端的平面上的线。

公开(公告)号：US5689578A

公开(公告)日：1997-11-18

申请号：US318848

申请日：1994-10-25

申请人： Ryozo Yamauchi ,  Kuniharu Himeno ,  Minoru Sawada ,  Fumio Suzuki ,  Kazuhiko Aikawa ,  Tetsuo Nozawa ,  Shigefumi Yamasaki

发明人： Ryozo Yamauchi ,  Kuniharu Himeno ,  Minoru Sawada ,  Fumio Suzuki ,  Kazuhiko Aikawa ,  Tetsuo Nozawa ,  Shigefumi Yamasaki

IPC分类号： C03B37/012 ,  G02B6/10 ,  G02B6/255 ,  G02B6/28 ,  G02B6/34 ,  H01S3/067

CPC分类号： G02B6/024 ,  C03B37/01217 ,  C03B37/01222 ,  G02B6/02042 ,  G02B6/2843 ,  H01S3/06708 ,  C03B2201/31 ,  C03B2201/36 ,  C03B2203/02 ,  C03B2203/12 ,  C03B2203/22 ,  C03B2203/30 ,  C03B2203/31 ,  C03B2203/34 ,  G02B6/2551 ,  G02B6/2552

摘要： The polarization-maintaining optical fiber 10 of the present invention is designed so that a plurality of core portions 12a,12b which have a high refractive index is provided in parallel along a single diameter direction in the cross section of the optical fiber, these core portions 12a,12b cooperating to propagate a single fundamental mode. In the production method for the polarization-maintaining optical fiber of the present invention, a plurality of holes 22 are formed longitudinally in parallel along a single diameter direction of a glass rod 21 having a low refractive index which forms the cladding, glass rods 23 for core use having a high refractive index which form the core portions are inserted into these holes 22, heating to form a unitary body is carried out, creating a preform which is then drawn. Further, the rare-earth-doped polarization-maintaining optical fiber of the present invention uses a rare earth element to dope the optical waveguide portion of the polarization-maintaining optical fiber, and can be employed in a light amplifier or laser oscillator. Moreover, the polarization-maintaining optical fiber coupler of the present invention is formed by bringing two or more polarization maintaining optical fibers into contact, heating, fusing and elongating them, and heating the vicinity of the connection point before and after connection.

摘要翻译： PCT No.PCT / JP94 / 00300 Sec。 371日期：1994年10月25日 102（e）日期1994年10月25日PCT 1994年2月24日PCT PCT。 第WO94 / 17714号公报 日期1994年9月1日本发明的偏振波保持光纤10被设计成使得在光学部件的横截面中沿着单一直径方向平行设置多个具有高折射率的芯部12a，12b 光纤，这些芯部分12a，12b协作传播单个基本模式。 在本发明的偏振波保持光纤的制造方法中，多个孔22沿着形成包层的折射率低的玻璃棒21的单一直径方向纵向平行地形成，玻璃棒23用于 形成芯部的具有高折射率的芯用途被插入到这些孔22中，进行加热以形成整体，形成预先形成的预成型体。 此外，本发明的稀土掺杂偏振保持光纤使用稀土元素来掺杂保偏光纤的光波导部分，并且可以用在光放大器或激光振荡器中。 此外，本发明的偏振保持光纤耦合器是通过使两个或更多个保偏光纤接触，加热，熔化和拉伸，以及在连接之前和之后加热连接点附近而形成的。

公开(公告)号：US5024501A

公开(公告)日：1991-06-18

申请号：US506402

申请日：1990-04-09

申请人： Hiroyuki Taya ,  Mikio Yoshinuma ,  Takeshi Yamada ,  Kenji Nishide ,  Fumio Suzuki ,  Hirohisa Fujimoto ,  Ryozo Yamauchi

发明人： Hiroyuki Taya ,  Mikio Yoshinuma ,  Takeshi Yamada ,  Kenji Nishide ,  Fumio Suzuki ,  Hirohisa Fujimoto ,  Ryozo Yamauchi

IPC分类号： G02B6/28

CPC分类号： G02B6/2843

摘要： The present invention discloses a manufacturing method for polarization maintaining optical fiber couplers which are used for joining light signals and at optical fiber branch points. The disclosed manufacturing method employs polarization maintaining optical fibers, and describes a method for mutually aligning the stress applying parts of such optical fibers so that polarized optical signals are maintained in the polarized state when transiting such couplers.

公开(公告)号：US5030265A

公开(公告)日：1991-07-09

申请号：US516500

申请日：1990-05-01

申请人： Fumio Suzuki ,  Noboru Kawakami ,  Yoshio Kikuchi ,  Ryozo Yamauchi

发明人： Fumio Suzuki ,  Noboru Kawakami ,  Yoshio Kikuchi ,  Ryozo Yamauchi

IPC分类号： G02B6/28

CPC分类号： G02B6/2835

摘要： A optical fiber coupler manufacturing device is disclosed for the manufacture of fused-elongated type optical fiber couplers. The disclosed invention provides an optical fiber coupler manufacturing device having a chassis, a pair of movable stands provided within the chassis forming a space therebetween, optical fiber mounting units for mounting and fixing two or more component optical fibers on the above mentioned pair of movable stands, and a drive mechanism whereby the pair of movable stands can be driven back and forth in a direction parallel to the longitudinal axes of the component optical fibers. By virtue of the space formed between the two movable stands, a heat source can be applied to the aligned portions of the component optical fibers, thereby effecting thermal fusing of the aligned portions, after which drawing out of the thus fused section can be effected using the above mentioned drive mechanism for the movable stands, and additionally, a protective case for surrounding and reinforcing the manufactured optical fiber coupler can easily be applied without removing the optical fiber coupler from the apparatus through the above described space.

公开(公告)号：US5058979A

公开(公告)日：1991-10-22

申请号：US242469

申请日：1990-06-21

申请人： Ryozo Yamauchi ,  Noboru Kawakami ,  Fumio Suzuki

发明人： Ryozo Yamauchi ,  Noboru Kawakami ,  Fumio Suzuki

IPC分类号： G02B6/255 ,  G02B6/28 ,  G02B6/34

CPC分类号： G02B6/29332 ,  G02B6/2552 ,  G02B6/2835 ,  G02B2006/2865

摘要： The present invention provides a wide wavelength range optical fiber coupler that to the greatest extent possible, allows optical coupling which is wavelength independent, and thus demonstrates a constant coupling ratio over a wide range of wavelengths. By causing various irregularities to be formed in the fused-elongated region of an optical fiber coupler, thereby leading to the generation of additional modes in addition to the fundamental modes, while at the same time causing multiple mode coupling in which the above mentioned additional modes participate in the coupling of the fundamental modes, it is possible to selectively control the coupling strength at determined wavelengths and thereby achieve optical coupling which is largely wavelength independent and thus demonstrates a relatively constant coupling ratio over a wide range of wavelengths. Furthermore, by causing the strength of coupling between the cores of each component optical fiber to vary along the length of the longitudinal axis of each component optical fiber, it is possible to decrease the degree of sinusoidal variation in the wavelength dependance characteristics of each component optical fiber, thereby making it possible to further achieve optical coupling which is wavelength independent and thus considerably constant over a wide range of wavelengths.

公开(公告)号：US5066087A

公开(公告)日：1991-11-19

申请号：US490026

申请日：1990-03-07

申请人： Ryozo Yamauchi ,  Noboru Kawakami ,  Fumio Suzuki

发明人： Ryozo Yamauchi ,  Noboru Kawakami ,  Fumio Suzuki

IPC分类号： G02B6/28 ,  G02B6/34

CPC分类号： G02B6/29332 ,  G02B6/2835

摘要： The optical fiber coupler of the present invention is characterized in that, for a defined section in which two or more component optical fibers are thermally fused and elongated thereby forming a fused-elongated region which constitutes the optical fiber coupler, that at least one of the component optical fibers is formed from a single mode optical fiber material employed within a parameter range in which the mode field diameter increases monotonically with decrease in the diameter of the optical fiber core. The optical fiber coupler is further characterized in that, when using optical fibers from which a portion of the coating material has been removed thereby exposing the cladding, and by aligning two or more of such component optical fibers side by side in a plane and mutually thermally fusing the exposed cladding of adjacent optical fibers, after which the fused region is drawn out, thereby forming a fused-elongated region which constitutes the optical fiber coupler, for such an optical fiber coupler, optical fiber material is used in which the softening temperature of the core is higher than that of the cladding, and further, for the drawing out of the mutually fused sections, the tension employed is such that by virtue of remaining stress, the refractive index of the core is reduced.

摘要翻译： 本发明的光纤耦合器的特征在于，对于其中两个或更多个组件光纤被热熔合和拉长的限定部分，由此形成构成光纤耦合器的熔融拉长区域，至少一个 分量光纤由单模光纤材料形成，该单模光纤材料在模场直径随着光纤芯直径的减小而单调增加的参数范围内使用。 光纤耦合器的特征还在于，当使用从其中去除了一部分涂层材料的光纤而使包层暴露的光纤，并且通过将两个或更多个这种组件光纤并排在一个平面中并相互热 熔化相邻光纤的暴露的包层，之后将熔融区域拉出，从而形成构成光纤耦合器的熔融 - 伸长区域，对于这种光纤耦合器，使用光纤材料，其中软化温度 该芯高于包层的芯，此外，为了从相互熔合的部分拉出，所使用的张力使得由于剩余应力，芯的折射率降低。

公开(公告)号：US5525607A

公开(公告)日：1996-06-11

申请号：US63684

申请日：1993-05-20

申请人： Fumio Suzuki ,  Junichi Shimada ,  Akio Ishii ,  Tetsuji Ohno ,  Akira Karasawa ,  Kazuhiro Kubo ,  Hiromi Nonaka ,  Fumio Suzuki ,  Junichi Shimada ,  Akio Ishii ,  Tetsuji Ohno ,  Akira Karasawa ,  Kazuhiro Kubo ,  Hiromi Nonaka

发明人： Fumio Suzuki ,  Junichi Shimada ,  Akio Ishii ,  Tetsuji Ohno ,  Akira Karasawa ,  Kazuhiro Kubo ,  Hiromi Nonaka ,  Fumio Suzuki ,  Junichi Shimada ,  Akio Ishii ,  Tetsuji Ohno ,  Akira Karasawa ,  Kazuhiro Kubo ,  Hiromi Nonaka

IPC分类号： C07D473/06 ,  C07D473/08 ,  C07D473/20 ,  C07D473/22 ,  A61K31/52 ,  C07D473/00

CPC分类号： C07D473/06 ,  C07D473/08 ,  C07D473/20 ,  C07D473/22

摘要： Novel xanthine compounds represented by the following formula: ##STR1## wherein each of R.sup.1, R.sup.2 and R.sup.3 independently represents hydrogen or lower alkyl;each of X.sup.1 and X.sup.2 independently represents oxygen or sulfur; and Q represents: ##STR2## The compounds are useful as a diuretic, a renal-protecting agent and bronchodilator.

摘要翻译： 由下式表示的新型黄嘌呤化合物：其中R 1，R 2和R 3各自独立地表示氢或低级烷基; X1和X2各自独立地表示氧或硫; Q表示：该化合物可用作利尿剂，肾保护剂和支气管扩张剂。

公开(公告)号：US08310753B2

公开(公告)日：2012-11-13

申请号：US12632007

申请日：2009-12-07

申请人： Fumio Suzuki ,  Naoshi Aikawa ,  Kotaro Yamaguchi

发明人： Fumio Suzuki ,  Naoshi Aikawa ,  Kotaro Yamaguchi

IPC分类号： G02B21/00 ,  G02B27/14

CPC分类号： G02B21/0036 ,  G02B21/0072 ,  G02B21/0076 ,  G02B26/105 ,  G02B27/0031

摘要： A confocal scanning microscope including: an objective system (second objective lens 23 and objective lens 24) illuminating a sample SA with illumination light; a scanning mechanism 31 scanning the sample SA to obtain an intensity signal; and a scanning optical system 32 provided between the scanning mechanism and the objective system. The scanning optical system composed of, in order from the scanning mechanism side, a first positive lens group G1, a second negative lens group G2, and a third positive lens group G3. The third lens group has two chromatic aberration correction portions each formed by a positive lens and a negative lens or negative lens and positive lens. Glass materials are selected such that one performs chromatization and the other performs achromatization, thereby providing a confocal scanning microscope capable of correcting lateral chromatic aberration generated in the objective system in the specific wavelength region by the scanning optical system.

摘要翻译： 一种共焦扫描显微镜，包括：用照明光照射样品SA的物镜系统（第二物镜23和物镜24） 扫描机构31扫描样本SA以获得强度信号; 以及设置在扫描机构和物镜系统之间的扫描光学系统32。 扫描光学系统按照扫描机构侧的顺序由第一正透镜组G1，第二负透镜组G2和第三正透镜组G3构成。 第三透镜组具有由正透镜和负透镜或负透镜和正透镜形成的两个色像差校正部。 选择玻璃材料，使得一个进行着色，另一个进行消色化，从而提供能够通过扫描光学系统校正在特定波长区域中的物镜系统中产生的横向色差的共焦扫描显微镜。

公开(公告)号：US20110182371A1

公开(公告)日：2011-07-28

申请号：US12737629

申请日：2009-07-30

申请人： Fumio Suzuki ,  Shoji Hatano ,  Noritoshi Hino ,  Masahito Taneda ,  Yoshimisa Kimura ,  Koichi Moriya

发明人： Fumio Suzuki ,  Shoji Hatano ,  Noritoshi Hino ,  Masahito Taneda ,  Yoshimisa Kimura ,  Koichi Moriya

IPC分类号： H04L27/00

CPC分类号： H04W56/00 ,  H04L7/10 ,  H04W52/0229 ,  Y02D70/00

摘要： Provided are a radio communication system, a receiver, and a transmitter, which are capable of reducing an operation time period of a reception circuit of the receiver and achieving reduction in power consumption even if there is a clock error between the transmitter and the receiver. In a case of a conventional method illustrated in FIG. 1(A), the receiver is operated earlier by a time period (Tm), to thereby achieve synchronization before the clock error of the receiver exceeds the time period (Tm). This requires an extended reception time period for achieving clock synchronization, which therefore prevents the receiver from reducing its power consumption. In view of this, according to the present invention, as illustrated in FIG. 1(B), a synchronization signal is continuously transmitted from the transmitter a plurality of times in a short period of time, and the receiver receives only one of the continuously-transmitted synchronization signals. With this, the receiver can achieve synchronization of a reference clock by starting a reception operation earlier only by a time period (Tm′) (Tm′≦Tm).

摘要翻译： 提供一种无线电通信系统，接收机和发射机，其能够减少接收机的接收电路的操作时间段，并且即使在发射机和接收机之间存在时钟误差也能实现功率消耗的降低。 在图1所示的常规方法的情况下， 如图1（A）所示，接收机较早地运行时间（Tm），从而在接收机的时钟误差超过时间段（Tm）之前实现同步。 这需要用于实现时钟同步的扩展接收时间段，从而防止接收机降低其功耗。 鉴于此，根据本发明，如图1所示， 如图1（B）所示，在短时间内多次从发送器连续发送同步信号，接收机仅接收连续发送的同步信号之一。 由此，接收器可以通过仅通过时间段（Tm'）（Tm'＆nlE; Tm）开始接收操作来实现参考时钟的同步。

公开(公告)号：US20100176411A1

公开(公告)日：2010-07-15

申请号：US12667023

申请日：2007-07-09

申请人： Fumio Suzuki

发明人： Fumio Suzuki

IPC分类号： H01L33/00

CPC分类号： H01L33/382 ,  F21K9/00 ,  F21K9/20 ,  F21Y2103/10 ,  F21Y2115/10 ,  G02B6/0055 ,  G02B6/0073 ,  H01L33/20 ,  H01L33/508

摘要： To provide a fluorescent-lamp-type LED lighting device that has a large amount of light intensity and that can replace a highly efficient existing lighting device, the fluorescent-lamp-type LED lighting device comprises an LED (3) comprising a thin plate-like semiconductor element body (31) that transmits light generated in a PN junction area (34) in the thickness direction and that emits the light from its surface, a surface electrode (32) arranged to cover the surface of the element body (31) and a plurality of cylindrical dielectric antennas (36) that penetrate the surface electrode (32) in its thickness direction and that condense the light transmitted through the inside of the semiconductor element body (31) and emit the light outside, and a lengthy exterior casing (2) made of resin having translucency. The LED (3) is arranged at both end parts of the exterior casing (2) or along its longitudinal direction. The light emitted from the LED (3) is irradiated outside through the exterior casing (2).

摘要翻译： 为了提供具有大量光强度并且可以代替现有照明装置的荧光灯型LED照明装置，荧光灯型LED照明装置包括LED（3），LED（3） 所述半导体元件体（31）在所述厚度方向上透过在PN结区域（34）中产生的光并从其表面发射光;布置成覆盖所述元件体（31）的表面的表面电极（32） 以及多个在其厚度方向上穿透所述表面电极（32）的圆柱形介质天线（36），并且将透过所述半导体元件体（31）内部的光聚光并将所述光发射到外部，以及将长的外壳 （2）由具有半透明度的树脂制成。 LED（3）设置在外壳（2）的两端部或其纵向方向。 从LED（3）发出的光通过外壳（2）照射到外部。