公开(公告)号：US08524552B2

公开(公告)日：2013-09-03

申请号：US13363256

申请日：2012-01-31

Applicant: Koichi Arai ,  Yasuaki Kagotoshi ,  Nobuo Machida ,  Natsuki Yokoyama ,  Haruka Shimizu

Inventor： Koichi Arai ,  Yasuaki Kagotoshi ,  Nobuo Machida ,  Natsuki Yokoyama ,  Haruka Shimizu

IPC: H01L21/337

CPC classification number: H01L29/36 ,  H01L29/045 ,  H01L29/1066 ,  H01L29/1608 ,  H01L29/42316 ,  H01L29/66909 ,  H01L29/8083

Abstract: In general, in a semiconductor active element such as a normally-off JFET based on SiC in which an impurity diffusion speed is significantly lower than in silicon, gate regions are formed through ion implantation into the side walls of trenches formed in source regions. However, to ensure the performance of the JFET, it is necessary to control the area between the gate regions thereof with high precision. Besides, there is such a problem that, since a heavily doped PN junction is formed by forming the gate regions in the source regions, an increase in junction current cannot be avoided. The present invention provides a normally-off power JFET and a manufacturing method thereof and forms the gate regions according to a multi-epitaxial method which repeats a process including epitaxial growth, ion implantation, and activation annealing a plurality of times.

Abstract translation: 通常，在诸如基于SiC的正常关断JFET的半导体有源元件中，其中杂质扩散速度显着低于硅中的杂质扩散速度，通过离子注入形成在源区中形成的沟槽的侧壁中形成栅极区。 然而，为了确保JFET的性能，需要高精度地控制栅极区域之间的面积。 此外，存在这样的问题，由于通过在源极区域中形成栅极区域而形成重掺杂的PN结，所以不能避免结电流的增加。 本发明提供一种常闭功率JFET及其制造方法，根据多次外延法形成栅极区域，该方法重复包括外延生长，离子注入和激活退火多次的工艺。

公开(公告)号：US20120193641A1

公开(公告)日：2012-08-02

申请号：US13363256

申请日：2012-01-31

Applicant: Koichi Arai ,  Yasuaki Kagotoshi ,  Nobuo Machida ,  Natsuki Yokoyama ,  Haruka Shimizu

Inventor： Koichi Arai ,  Yasuaki Kagotoshi ,  Nobuo Machida ,  Natsuki Yokoyama ,  Haruka Shimizu

IPC: H01L29/808 ,  H01L21/337

CPC classification number: H01L29/36 ,  H01L29/045 ,  H01L29/1066 ,  H01L29/1608 ,  H01L29/42316 ,  H01L29/66909 ,  H01L29/8083

Abstract: In general, in a semiconductor active element such as a normally-off JFET based on SiC in which an impurity diffusion speed is significantly lower than in silicon, gate regions are formed through ion implantation into the side walls of trenches formed in source regions. However, to ensure the performance of the JFET, it is necessary to control the area between the gate regions thereof with high precision. Besides, there is such a problem that, since a heavily doped PN junction is formed by forming the gate regions in the source regions, an increase in junction current cannot be avoided. The present invention provides a normally-off power JFET and a manufacturing method thereof and forms the gate regions according to a multi-epitaxial method which repeats a process including epitaxial growth, ion implantation, and activation annealing a plurality of times.

Abstract translation: 通常，在诸如基于SiC的正常关断JFET的半导体有源元件中，其中杂质扩散速度显着低于硅中的杂质扩散速度，通过离子注入形成在源区中形成的沟槽的侧壁中形成栅极区。 然而，为了确保JFET的性能，需要高精度地控制栅极区域之间的面积。 此外，存在这样的问题，由于通过在源极区域中形成栅极区域而形成重掺杂的PN结，所以不能避免结电流的增加。 本发明提供一种常闭功率JFET及其制造方法，根据多次外延法形成栅极区域，该方法重复包括外延生长，离子注入和激活退火多次的工艺。

公开(公告)号：US5028008A

公开(公告)日：1991-07-02

申请号：US394863

申请日：1989-08-17

Applicant: Koichi Arai

Inventor： Koichi Arai

IPC: B01D29/48 ,  B01D29/15 ,  B01D39/14 ,  B05B1/00

CPC classification number: B01D29/15

Abstract: A wire with a definite cross-section is previously wound and bent in the form of a coil in a desired diameter to form a cylindrical body provided with slit holes in the form of a coil on the adjoining wound portions. One open end of the cylindrical body as obstructed as much or through in the intermediary of a core bar having a fluid passage, while the other open end thereof is secured to a hole-opening base whereby a small-sized fluid treatment element is obtained.

Abstract translation: 具有确定横截面的导线预先以所需直径的线圈缠绕和弯曲，以形成在相邻的卷绕部分上设置有线圈形式的狭缝孔的圆柱体。 圆筒体的一个开口端在具有流体通道的芯棒的中间受阻或通过，而另一个开口端固定到孔开口底部，由此获得小尺寸的流体处理元件。

公开(公告)号：US4904378A

公开(公告)日：1990-02-27

申请号：US184078

申请日：1988-04-20

Applicant: Koichi Arai

Inventor： Koichi Arai

IPC: B01D46/10 ,  B01D29/01 ,  B01D29/03 ,  B01D29/48

CPC classification number: B01D29/036

Abstract: A flat element for filtering various substances and separating particles wherein a wire is planarly wound in the form of a vortex to form a vortical slit between the adjoining peripheral margins of the wire thereby increasing the area for filtering or separation treatment as so-called linear treatment holes to the utmost to improve the filtering or separation efficiency.

Abstract translation: 用于过滤各种物质和分离颗粒的扁平元件，其中线以涡流的形式平面地缠绕以在线的邻接的周边边缘之间形成涡旋缝，从而增加用于过滤或分离处理的面积，如所谓的线性处理 孔最大限度地提高过滤或分离效率。

公开(公告)号：US4873222A

公开(公告)日：1989-10-10

申请号：US103686

申请日：1987-10-02

Applicant: Koichi Arai ,  Hideo Yoshizaki

Inventor： Koichi Arai ,  Hideo Yoshizaki

IPC: A61K35/50 ,  A61K38/00 ,  A61P7/02 ,  C07K1/14 ,  C07K1/22 ,  C07K14/435 ,  C07K14/745

CPC classification number: A61K35/50

Abstract: A human placenta-derived antiocoagulating substance is prepared by homogenizing a human plancenta, subjecting the resulting homogenate to centrifugal separation, extracting the thus-obtained sediment with a chelating agent, and then separating and purifying the extract. The substance has a molecular weight of 73,000.+-.2,000 as measured in reduced and non-reduced states by SDS-polyacrylamide gel electrophoresis. Its isoelectric point ranges from 6.2 to 6.6 as measured by isoelectric column electrophoresis using an ampholyte. It is inactivated by a heat treatment at 50.degree. C. for 30 minutes, is stable in a pH range of 5.5-8.5 (37.degree. C.) and is also stable in plasma at 37.degree. C. for 15 minutes. It can prolong the recalcification time, prothrombin time and activated partial thromboplastic time.

Abstract translation: 人胎盘来源的抗凝血物质是通过将人平均匀化，将得到的匀浆进行离心分离，用螯合剂萃取由此获得的沉淀物，然后分离和纯化提取物来制备的。 该物质通过SDS-聚丙烯酰胺凝胶电泳在还原和非还原状态下测得的分子量为73,000 +/- 2,000。 其等电点在6.2至6.6之间，通过使用两性电解质的等电泳柱电泳测量。 通过在50℃下热处理30分钟而灭活，在5.5-8.5（37℃）的pH范围内是稳定的，并且在37℃等离子体中也稳定15分钟。 可延长再钙化时间，凝血酶原时间和活化部分血栓形成时间。

公开(公告)号：US4733271A

公开(公告)日：1988-03-22

申请号：US814798

申请日：1985-12-30

Applicant: Koichi Arai

Inventor： Koichi Arai

IPC: G03G15/22 ,  G03G15/00

CPC classification number: G03G15/221 ,  G03G15/0435

Abstract: An image reproduction apparatus capable of reproducing the images which are recorded on the original and on the board sheet which is able to move is used. The image reproducing apparatus consists of the board section including the board formed as a sheet and the reproducing section capable of moving forward or backward to the board section. A detecting means for detecting the position in which the reproducing section is towards the board section is arranged on the board section and the reproducing section. The image reproduction apparatus confirms the position at which the reproducing section is outputted according to the detecting means, and thus the image reproduction apparatus reproduces the image on the board sheet and on the original.

Abstract translation: 使用能够再现能够移动的原稿上和纸板上记录的图像的图像再现装置。 图像再现装置由包括形成为纸张的板的板部分和能够向前或向后移动到板部的再现部分组成。 用于检测再现部分朝向板部分的位置的检测装置布置在板部分和再现部分上。 图像再现装置根据检测装置确认再现部分被输出的位置，因此图像再现装置再现板上和原稿上的图像。

公开(公告)号：US4693835A

公开(公告)日：1987-09-15

申请号：US767746

申请日：1985-08-21

Applicant: Koichi Arai

Inventor： Koichi Arai

IPC: B01D29/48 ,  B01D37/02

CPC classification number: B01D37/02 ,  B01D29/48

Abstract: A filter process and its device consist of a double filtration system, i.e. a superficial filtration by means of coating of a filter medium and a cubical filtration by forming a large number of recesses between adjacent wires to be wrapped up round a screw thread portion of a cylinder. The screw thread portion is formed on the outer circumference of the cylinder. The section of the wire is isosceles triangle and a summit of the wire is wrapped up round screw bottom of the screw thread portion.

Abstract translation: 过滤过程及其装置由双过滤系统组成，即通过过滤介质的涂布进行表面过滤，并通过在相邻的电线之间形成大量凹槽，以将其包裹在螺纹部分的螺纹部分 圆筒。 螺纹部形成在圆筒的外周。 电线的一部分是等腰三角形，线的顶点包裹在螺纹部分的圆形螺丝底部。

公开(公告)号：US4655922A

公开(公告)日：1987-04-07

申请号：US799445

申请日：1985-11-19

Applicant: Koichi Arai

Inventor： Koichi Arai

IPC: B01D29/15 ,  E21B43/08 ,  E03B3/18

CPC classification number: E21B43/088 ,  B01D29/15 ,  Y10T29/49874 ,  Y10T403/583

Abstract: This invention relates to a wire locking structure for a filter device, in which an outer circumference of a cylinder body is provided with a screw thread portion. The screw thread portion is wrapped by a wire of isosceles triangle in section. An end of the wire is drawn into a recess and firmly supported in a U-shape by an insert member to be inserted in the recess, thereby a conventional welding means has been removed.

Abstract translation: 本发明涉及一种用于过滤装置的线锁结构，其中筒体的外圆周设有螺纹部分。 螺纹部分由等腰三角形的线包裹。 线的一端被插入凹部中并通过插入件牢固地支撑在U形中以插入凹部中，从而已经去除了传统的焊接装置。

公开(公告)号：US4648706A

公开(公告)日：1987-03-10

申请号：US787379

申请日：1985-10-15

Applicant: Sohei Shibasaki ,  Yasumasa Iwasaki ,  Noriki Ono ,  Koichi Arai ,  Koji Maruyama ,  Tatsumi Shimanari

Inventor： Sohei Shibasaki ,  Yasumasa Iwasaki ,  Noriki Ono ,  Koichi Arai ,  Koji Maruyama ,  Tatsumi Shimanari

IPC: G03B27/62 ,  G03G15/22 ,  G03B27/52 ,  G03B27/70

CPC classification number: G03B27/6242 ,  G03G15/221 ,  G03G15/0435

Abstract: The image reproduction apparatus of the present invention can make a copy of images written or drawn on a board as well as a copy of images of an original provided on an original table. The image reproduction apparatus comprises a board portion and a copying portion. The optical information of images written or drawn on a board is supplied to the copying section through an optical system. The copying section moves between a position where the image reproduction is performed by the above optical information and a position where an ordinary copying of the original is performed. Thus, according to the present invention, the copying section moves between said two positions.

Abstract translation: 本发明的图像再现装置可以制作在原稿台上写入或绘制的图像的副本以及原件的图像的副本。 图像再现装置包括板部分和复印部分。 通过光学系统将在板上写入或绘制的图像的光学信息提供给复印部。 复制部分在通过上述光学信息执行图像再现的位置与执行原稿的普通复制的位置之间移动。 因此，根据本发明，复印部分在所述两个位置之间移动。

公开(公告)号：US08427150B2

公开(公告)日：2013-04-23

申请号：US13002206

申请日：2009-06-22

Applicant: Koichi Arai

Inventor： Koichi Arai

IPC: G01V3/00

CPC classification number: A61B5/055 ,  A61B5/0037 ,  G01R33/288 ,  G01R33/54 ,  G01R33/543

Abstract: It has an object to suppress reduction of an examination efficiency caused by limitation of SAR (specific absorption rate) to the minimum level in an examination that plural imaging sequences containing different imaging sequences are consecutively executed. In consideration of the time variation of time average SAR value in the overall examination, the order of executing the imaging sequences is determined so that the SAR value falls within a predetermined range and the waiting time between imaging sequences is minimum. The determination is performed by calculating a waiting time of each of all conceivable execution orders and selecting an execution order having the minimum waiting time.

Abstract translation: 本发明的目的是在连续执行包含不同成像序列的多个成像序列的检查中，抑制由SAR（比吸收率）的限制引起的检查效率的降低。 考虑到整体检查中时间平均SAR值的时间变化，确定执行成像序列的顺序，使得SAR值落在预定范围内，并且成像序列之间的等待时间最小。 通过计算所有可能的执行顺序中的每一个的等待时间并选择具有最小等待时间的执行顺序来执行确定。