专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4964907A Sintered bodies and production process thereof 失效
标题翻译：烧结体及其制造方法
公开(公告)号：US4964907A
公开(公告)日：1990-10-23
申请号：US393765
申请日：1989-08-14
申请人： Yoshisato Kiyota , Junichi Ohta , Hiroshi Ohtsubo , Shigeaki Takajo
发明人： Yoshisato Kiyota , Junichi Ohta , Hiroshi Ohtsubo , Shigeaki Takajo
IPC分类号： B22F3/10 , B22F3/22 , H01F1/22
CPC分类号： B22F3/225 , B22F3/101 , B22F3/22 , H01F1/22 , A61F2002/30968 , B22F2998/00
摘要： A process is provided for the production of a sintered body. The process includes the following consecutive steps: (i) mixing and kneading one or more metal powders and/or one or more alloy powder with a binder into a compound, said metal and alloy powders having an average particle size not greater than 30 .mu.m, (ii) injection-molding the compound into a green body; (iii) debinding the green body to form a debound body; and (iv) subjecting the debound body to first-stage sintering at 1,050.degree.-1,250.degree. C. in a reducing or reduced-pressure atmosphere and then to second-stage sintering at a temperature in a range of 1,100.degree.-1,400.degree. C. which is higher than that of the first-stage sintering. This process can provide sintered Ti bodies and sintered magnetic bodies of the Fe-Si type, which have a density ratio of at least 95%.

2. 发明授权

US5067979A Sintered bodies and production process thereof 失效
标题翻译：烧结体及其制造方法
公开(公告)号：US5067979A
公开(公告)日：1991-11-26
申请号：US549491
申请日：1990-07-06
申请人： Yoshisato Kiyota , Junichi Ohta , Hiroshi Ohtsubo , Shigeaki Takajo
发明人： Yoshisato Kiyota , Junichi Ohta , Hiroshi Ohtsubo , Shigeaki Takajo
IPC分类号： B22F3/10 , B22F3/22 , H01F1/22
CPC分类号： B22F3/225 , B22F3/101 , B22F3/22 , H01F1/22 , A61F2002/30968 , B22F2998/00
摘要： A process is provided for the production of a sintered body. The process includes the following consecutive steps: i) mixing and kneading one or more metal powders and/or one or more alloy powder with a binder into a compound, said metal and alloy powders having an average particle size not greater than 30 .mu.m, ii) injection-molding the compound into a green body; iii) debinding the green body to form a debound body; and iv) subjecting the debound body to a first-stage sintering at 1,050.degree.-1,250.degree. C. in a reduced-pressure atmosphere and then to second-stage sintering at a temperature in a range of 1,100.degree.-400.degree. C. which is higher than that of the first-stage sintering. This process can provide sintered Ti bodies and sintered magnetic bodies of the Fe-Si type, which have a density ratio of at least 95%.
摘要翻译：提供了制造烧结体的方法。该方法包括以下连续步骤：i）将一种或多种金属粉末和/或一种或多种合金粉末与粘合剂混合并捏合到化合物中，所述金属和合金粉末的平均粒度不大于30μm， ii）将化合物注射成型为生坯; iii）剥去生坯以形成一个去皮体; 和iv）在减压气氛中使得脱氧体在1050℃-150℃下进行第一阶段烧结，然后在1100℃-400℃的温度下进行第二阶段烧结，高于一级烧结。该方法可以提供具有至少95％的密度比的Fe-Si型烧结Ti体和烧结磁体。

3. 发明授权

US5380476A Method of debinding for injection molded objects 失效
标题翻译：注射成型物品脱脂方法
公开(公告)号：US5380476A
公开(公告)日：1995-01-10
申请号：US760805
申请日：1991-09-16
申请人： Masakazu Matsushita , Yoshisato Kiyota , Hiroshi Ohtsubo , Junichi Ohta
发明人： Masakazu Matsushita , Yoshisato Kiyota , Hiroshi Ohtsubo , Junichi Ohta
IPC分类号： C04B35/638 , B22F3/10 , B22F3/22 , C04B35/64
CPC分类号： B22F3/225 , B22F3/1021 , B22F3/22 , B22F2998/00
摘要： A debinding method for use in a process for producing a sintered object, by effecting a debinding pre-treatment by heating the injection-molded object in an atmosphere of reduced pressure at a temperature at which the vapor pressure of the component of the organic binder having the highest vapor pressure does not exceed the pressure of the atmosphere, thereby removing the organic binder in the amount of at least about 18 wt %; and effecting a further debinding heat treatment in which the injection-molded object is heated to and maintained at a temperature higher than the temperature in the debinding pre-treatment.
摘要翻译：一种剥离方法，用于制造烧结体的方法，通过在有机粘合剂的成分的蒸气压具有下述温度的条件下，在减压气氛下加热注射成形体，进行脱脂预处理：最高的蒸汽压力不超过大气压力，从而除去至少约18重量％的有机粘合剂; 并且进行进一步的脱模热处理，其中将注射成型物体加热并保持在高于脱模预处理温度的温度。

4. 发明授权

US5108492A Corrosion-resistant sintered alloy steels and method for making same 失效
标题翻译：耐腐蚀烧结合金钢及其制造方法
公开(公告)号：US5108492A
公开(公告)日：1992-04-28
申请号：US465192
申请日：1990-02-22
申请人： Yoshisato Kiyota , Hiroshi Ohtsubo , Junichi Ohta , Masakazu Matsushita , Ichio Sakurada
发明人： Yoshisato Kiyota , Hiroshi Ohtsubo , Junichi Ohta , Masakazu Matsushita , Ichio Sakurada
IPC分类号： B22F3/10 , C22C33/02 , C22C38/00 , C22C38/40
CPC分类号： C22C33/02 , B22F3/101 , C22C33/0285
摘要： It is provided a method for the manufacture of a corrosion-resistant sintered alloy steel, which comprises providing a stainless steel powder; adding a binder to said steel powder; molding the mixture; and carrying out the steps of (1) heating the resultant molding to remove the binder therefrom, (2) sintering the thus debound molding under reduced pressure up to 30 Torr, and (3) further sintering at a higher temperature than those of steps (1) and (2) in a non-oxidative atmosphere under substantially atmospheric pressure. It is also provided a corrosion-resistant sintered alloy steel which comprises a stainless steel, said alloy steel having a density ratio of not less than 92%, a maximum diametric of pore present in the structure of not larger than 20 .mu.m, and a content of Cr at the surface of the steel as being sintered which is not less than 80% of a content of Cr in the inside thereof.
摘要翻译： PCT No.PCT / JP89 / 00633 Sec。 371日期1990年2月22日 102（e）日期1990年2月22日PCT提交1989年6月27日PCT公布。公开号WO90 / 00207 日本1990年1月11日提供了一种制造耐腐蚀烧结合金钢的方法，其包括提供不锈钢粉末; 向所述钢粉末添加粘合剂; 成型混合物; （1）加热所得到的模制品以除去粘合剂，（2）在减压下将脱模成型体烧结至30托，和（3）在比步骤（TM）高的温度下进一步烧结（ 1）和（2）在非氧化性气氛中在大气压下进行。还提供了一种耐腐蚀的烧结合金钢，其包括不锈钢，所述合金钢的密度比不小于92％，结构中存在的孔的最大直径不大于20μm，在烧结的钢表面的Cr含量不低于其内部的Cr含量的80％。

5. 发明授权

US06648941B2 Iron-based mixed powder for powder metallurgy and iron-based sintered compact 失效
公开(公告)号：US06648941B2
公开(公告)日：2003-11-18
申请号：US10080234
申请日：2002-02-21
申请人： Satoshi Uenosono , Junichi Ohta , Akio Sonobe
发明人： Satoshi Uenosono , Junichi Ohta , Akio Sonobe
IPC分类号： B22F100
CPC分类号： C22C33/0228 , B22F2003/023 , B22F2998/00 , B22F1/0096
摘要： In order to improve machinability of a sintered compact, a phosphate compound of an alkali earth metal (calcium phosphate compound or the like) is mixed with an iron-based powder, or an alkali earth metal fluoride (calcium fluoride, or the like) is further mixed with the iron-based powder. Alternatively, the alkali earth metal fluoride, together with a graphite powder, is preferably fixed to recesses of the iron-based powder.

6. 发明授权

US5261070A Method and apparatus for forming unique user identification data at remote terminal for secure transmission of data from host terminal 失效
标题翻译：用于在远程终端形成唯一用户识别数据的方法和装置，用于从主机终端安全传输数据
公开(公告)号：US5261070A
公开(公告)日：1993-11-09
申请号：US587615
申请日：1990-09-20
申请人： Junichi Ohta
发明人： Junichi Ohta
IPC分类号： G06F1/00 , G06F21/00 , H04L9/32 , G06F12/14
CPC分类号： G06F21/31 , H04L9/3226
摘要： The present invention relates to a method and apparatus to determine whether a user is authorized to utilize a data communication network, and more particularly a terminal machine in the network. Data having a predetermined number of bits are read out from a relatively large random number memory, containing previously stored data, by using key data to address said bits at the terminal machine. The addressed data are used as new key data and data each having a predetermined number of bits are repeatedly read from the data in the random number memory to form identification data on the basis of the old and new key data in each cycle. In such manner, there are formed identification data unequivocally determined in accordance with the key data and having high security or confidentiality.
摘要翻译：本发明涉及一种确定用户是否被授权利用数据通信网络的方法和装置，更具体地说涉及网络中的终端机。具有预定位数的数据从包含先前存储的数据的相对较大的随机数存储器中通过使用密钥数据在终端机处理所述位来读出。所寻址的数据被用作新的密钥数据，并且每个具有预定数量的比特的数据从随机数存储器中的数据重复读取，以在每个周期中基于旧的和新的密钥数据形成识别数据。以这种方式，形成了根据密钥数据明确确定并具有高安全性或机密性的识别数据。

7. 发明授权

US5448376A Image processing apparatus for deleting undesired image from image of document 失效
标题翻译：用于从文件图像中删除不想要的图像的图像处理装置
公开(公告)号：US5448376A
公开(公告)日：1995-09-05
申请号：US828167
申请日：1992-01-30
申请人： Junichi Ohta
发明人： Junichi Ohta
IPC分类号： H04N1/387 , G06T1/00 , G06T3/00 , H04N1/38 , H04N1/40
CPC分类号： H04N1/38
摘要： An image processing apparatus for deleting an undesired image from an image includes a scanning part, an image memory for storing an image of a document being scanned, a delete-image memory for storing predetermined standard geometry parameters with respect to a delete image, the standard geometry parameters defining a predetermined configuration of the delete image, a candidate fetching part for fetching a candidate image from the stored image of the document based on the standard geometry parameters, a candidate rotating part for rotating the candidate image, a discrimination part for detecting whether or not the candidate image is a delete image by comparing a configuration of the rotated candidate image with the predetermined configuration of the delete image, a deletion part for deleting the detected candidate image from the stored image of the document if it is detected that the candidate image is a delete image, and an output part for outputting the stored image in the image memory from which the detected candidate image is deleted.
摘要翻译：一种用于从图像中删除不想要的图像的图像处理装置包括扫描部分，用于存储被扫描文件的图像的图像存储器，用于存储关于删除图像的预定标准几何参数的删除图像存储器，标准定义删除图像的预定配置的几何参数，基于标准几何参数从存储的文档图像中取出候选图像的候选提取部分，用于旋转候选图像的候选旋转部分，用于检测是否或者候选图像是通过将旋转的候选图像的配置与删除图像的预定配置进行比较的删除图像，如果检测到候选者，则从所存储的文档的图像中删除检测到的候选图像的删除部分图像是删除图像，以及输出部分，用于在图像存储器中输出存储的图像检测到的候选图像被删除。

8. 发明授权

US5596640A Digital image forming apparatus with data conversion 失效
标题翻译：具有数据转换的数字图像形成装置
公开(公告)号：US5596640A
公开(公告)日：1997-01-21
申请号：US261267
申请日：1994-06-15
申请人： Junichi Ohta
发明人： Junichi Ohta
IPC分类号： G06T9/00 , G09C5/00 , H04N1/44 , H04N1/417
CPC分类号： H04N1/4413
摘要： An image forming apparatus including an operating board for indicating operating modes, a document reading member and an outputting member for outputting data. An image compressing member compresses image data read by the document reading member and a memory member records the compressed image data, wherein the outputting member produces an output image on a paper sheet based on the compressed image data recorded in the memory member. An image extracting member extracts the compressed data from image data which are obtained by reading the output image by the image reading member and a decompressing member decompresses the compressed image data which are extracted by the image extracting member, wherein the outputting member produces an output image on a paper sheet based on the decompressed image data. With input image data being preserved, the image data are compressed by an image compressing part are thus converted into a cryptograph. The compressed image data are formed by a first image forming part and are output on documents in a form which can not be recognized. In the case of restoration, the output documents which can not be recognized are scanned and the compressed image data are picked up by a compressed image extracting part. The picked up image data are restored into the original image by an image decompressing part, that is, the recognizable image is restored to a usual format on paper sheets by a second image forming part.
摘要翻译：一种图像形成装置，包括用于指示操作模式的操作板，文档读取构件和用于输出数据的输出构件。图像压缩构件压缩由文件读取构件读取的图像数据，存储构件记录压缩图像数据，其中输出构件基于记录在存储构件中的压缩图像数据在纸张上产生输出图像。图像提取构件从由图像读取构件读取输出图像获得的图像数据中提取压缩数据，并且解压缩构件解压缩由图像提取构件提取的压缩图像数据，其中输出构件产生输出图像基于解压图像数据在纸张上。在保留输入图像数据的同时，由图像压缩部分压缩的图像数据被转换成密码。压缩图像数据由第一图像形成部分形成，并以无法识别的形式在文档上输出。在恢复的情况下，扫描不能识别的输出文档，并且压缩图像数据被压缩图像提取部分拾取。所拾取的图像数据通过图像解压缩部分恢复为原始图像，即通过第二图像形成部分将可识别的图像恢复为纸张上的通常格式。

9. 发明授权

US5420695A Image reading and forming apparatus for identifying and correcting the gridlines of a table 失效
标题翻译：用于识别和校正表的网格线的图像读取和形成装置
公开(公告)号：US5420695A
公开(公告)日：1995-05-30
申请号：US027240
申请日：1993-03-05
申请人： Junichi Ohta
发明人： Junichi Ohta
IPC分类号： G03G21/00 , G03G15/36 , G06F17/21 , G06K9/20 , G06K9/36 , H04N1/00 , H04N1/387 , G06K9/42
CPC分类号： G06K9/00449 , H04N1/3873
摘要： An image forming apparatus has an image reading and correcting device capable of reading a document including a table, identifying the table (guideline) from the document correcting the table, and then outputting an image with the corrected table. The apparatus can form corrected images in a table included in a document image, change the magnification ratio of the corrected table to the proper size and select the proper paper size for output.
摘要翻译：图像形成装置具有能够读取包括表的文档的图像读取和校正装置，从校正该表的文档中识别表格（指南），然后输出具有校正表的图像。该装置可以在包括在文件图像中的表格中形成校正图像，将校正表的放大率改变为适当的大小，并选择适当的纸张尺寸以进行输出。

10. 发明授权

US5195147A Image forming apparatus 失效
标题翻译：图像形成装置
公开(公告)号：US5195147A
公开(公告)日：1993-03-16
申请号：US516924
申请日：1990-04-30
申请人： Junichi Ohta
发明人： Junichi Ohta
IPC分类号： G06K7/14 , G06K9/00
CPC分类号： G06K9/00476 , G06K7/14
摘要： An image forming apparatus capable of reproducing a hand-written document by automatically correcting it. The apparatus discriminates figure images including hand-written rules and character images which are carried on a document. Thereafter, the apparatus corrects, among the figure images, straight lines images in a designated direction while preserving their relationship to the other figure images as to connection. Further, the apparatus changes the distance between nearby straight line image such that all the straight line images are spaces apart by the same distance.
摘要翻译：一种能够通过自动校正手写文件的图像形成装置。该装置对包括手写规则和文字上携带的字符图像的图像进行鉴别。此后，该装置在图形图像之间以指定方向校正直线图像，同时保持与连接的其他图像图像的关系。此外，该装置改变附近直线图像之间的距离，使得所有直线图像间隔开相同距离。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式