公开(公告)号：US20090039503A1

公开(公告)日：2009-02-12

申请号：US12109417

申请日：2008-04-25

申请人： Shigeru TOKITA ,  Hiroo Matsue ,  Fumihide Maeda

发明人： Shigeru TOKITA ,  Hiroo Matsue ,  Fumihide Maeda

IPC分类号： H01L23/36

CPC分类号： H01L23/433 ,  H01L23/053 ,  H01L23/562 ,  H01L24/32 ,  H01L2224/16225 ,  H01L2224/32057 ,  H01L2224/73253 ,  H01L2224/83385 ,  H01L2924/01006 ,  H01L2924/01033 ,  H01L2924/01082 ,  H01L2924/16152 ,  H01L2924/19041 ,  H05K7/20472 ,  H01L2924/3512 ,  H01L2924/00

摘要： The invention provides a heat radiating structure which reduces a mechanical stress applied to an electronic part mounted on a printed circuit board including a semiconductor package. The heat radiating structure is constructed by a semiconductor package mounted on a printed circuit board, a thermal conduction sheet arranged on an upper surface of the semiconductor package, and a metal case provided with a heat radiating fin for receiving a heat transmitted form the thermal conduction sheet so as to discharge to an atmospheric air, and the metal case is provided with a concavo-convex structure in a contact portion with the thermal conduction sheet.

摘要翻译： 本发明提供了一种减少施加到安装在包括半导体封装的印刷电路板上的电子部件上的机械应力的散热结构。 散热结构由安装在印刷电路板上的半导体封装，布置在半导体封装的上表面上的导热片构成，金属壳由散热片构成，散热片用于接收热传导的热量 片材，以排出到大气中，金属壳体在与导热片的接触部分中设置有凹凸结构。

公开(公告)号：US20090245812A1

公开(公告)日：2009-10-01

申请号：US12360147

申请日：2009-01-27

申请人： Shigeru TOKITA ,  Hiroo Matsue ,  Akira Kuwahara

发明人： Shigeru TOKITA ,  Hiroo Matsue ,  Akira Kuwahara

IPC分类号： H04B10/04

CPC分类号： H01S5/02284 ,  H01S5/0427

摘要： Provided is an optical transmission circuit capable of realizing a high-quality optical signal waveform with low power consumption. An optical transmission circuit (10) includes: a laser diode (800); a modulator (900) for supplying a differential modulation current to an anode terminal and a cathode terminal of the laser diode (800) through transmission lines (301 to 304); a current source (101) for supplying a forward bias current to the laser diode (800); and a magnetic sheet (wave absorber) (400) disposed so as to cover at least a part of the transmission lines (303 and 304). An impedance of the laser diode (800) is lower than characteristic impedances of the transmission lines (301 to 304) which are formed so that the characteristic impedances thereof are matched to an output impedance of the modulator (900).

摘要翻译： 提供一种能够实现低功耗的高质量光信号波形的光传输电路。 光传输电路（10）包括：激光二极管（800）; 用于通过传输线（301至304）向所述激光二极管（800）的阳极端子和阴极端子提供差分调制电流的调制器（900）; 用于向激光二极管（800）提供正向偏置电流的电流源（101）; 以及设置成覆盖传输线（303和304）的至少一部分的磁性片（波吸收体）（400）。 激光二极管（800）的阻抗低于形成为使得其特性阻抗与调制器（900）的输出阻抗匹配的传输线（301〜304）的特性阻抗。

公开(公告)号：US20110237791A1

公开(公告)日：2011-09-29

申请号：US13081201

申请日：2011-04-06

申请人： Takanori KAWAGUCHI ,  Kengo WATATANI ,  Keiko FUSEGI ,  Masahiro BOHNO ,  Hajime ASANUMA ,  Shoichi KURODA ,  Yudai IMAI ,  Tomomichi CHONAN ,  Nagaaki SATO ,  Shigeru TOKITA ,  Shigetada SASAKO ,  Takumi OKADA ,  Keishi HAYASHI ,  Shin ITOH ,  Noriko SAITO ,  Rui JIBIKI ,  Seishi ISHIYAMA ,  Hirofumi OTA

发明人： Takanori KAWAGUCHI ,  Kengo WATATANI ,  Keiko FUSEGI ,  Masahiro BOHNO ,  Hajime ASANUMA ,  Shoichi KURODA ,  Yudai IMAI ,  Tomomichi CHONAN ,  Nagaaki SATO ,  Shigeru TOKITA ,  Shigetada SASAKO ,  Takumi OKADA ,  Keishi HAYASHI ,  Shin ITOH ,  Noriko SAITO ,  Rui JIBIKI ,  Seishi ISHIYAMA ,  Hirofumi OTA

IPC分类号： C07D213/64 ,  C07D401/12 ,  C07D401/06 ,  C07D405/06 ,  C07D413/14

CPC分类号： C07D401/10 ,  C07D213/64 ,  C07D401/12 ,  C07D401/14 ,  C07D405/10 ,  C07D413/06 ,  C07D417/06 ,  C07D417/14

摘要： A 2-pyridone compound represented by the formula [1]: {wherein in the formula [1], the ring represented by A represents a benzene ring or a pyridine ring, X represents any of the structures represented by the formulas [3] shown below: V represents a single bond or a lower alkylene group, and W represents a single bond, an ether bond or a lower alkylene group (wherein the lower alkylene group may contain an ether bond)}, a tautomer or stereoisomer of the compound, a pharmaceutically acceptable salt thereof, or a solvate thereof is a compound that has an excellent GK activating effect and is useful as a pharmaceutical.

摘要翻译： 由式[1]表示的2-吡啶酮化合物：其中，在式[1]中，由A表示的环表示苯环或吡啶环，X表示由式[3]表示的任何结构 V表示单键或低级亚烷基，W表示单键，醚键或低级亚烷基（其中低级亚烷基可以含有醚键）}，化合物的互变异构体或立体异构体， 其药学上可接受的盐或其溶剂合物是具有优异的GK活化作用并可用作药物的化合物。