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1. 发明授权

US5013169A Print head having reduced noise and vibration characteristics 失效
标题翻译：打印头具有降低的噪音和振动特性
公开(公告)号：US5013169A
公开(公告)日：1991-05-07
申请号：US394416
申请日：1989-08-16
申请人： Tsutomu Ikehata , Makoto Yasunaga , Hirofumi Suzuki
发明人： Tsutomu Ikehata , Makoto Yasunaga , Hirofumi Suzuki
IPC分类号： B41J2/235 , B41J2/275 , B41J29/10
CPC分类号： B41J2/275 , B41J29/10
摘要： An improved print head for a dot matrix printer is provided. The printing is performed by wires projecting from said print head. The movement of the wires is controlled by the movement of armatures which contact an armature base. The construction of the base from a liquid crystal polymer or an aromatic series polyester resin results in improved vibration damping which in turn results in quieter printer operation.
摘要翻译：提供了一种用于点阵式打印机的改进的打印头。通过从所述打印头突出的线进行打印。电线的移动通过接触电枢基座的电枢的运动来控制。由液晶聚合物或芳香族系列聚酯树脂构成的基底导致改进的减振，这又导致打印机操作更安静。

2. 发明授权

US5102245A Print head 失效
标题翻译：打印头
公开(公告)号：US5102245A
公开(公告)日：1992-04-07
申请号：US573067
申请日：1990-08-27
申请人： Tsutomu Ikehata , Makoto Yasunaga , Katsuya Masuda , Hirofumi Suzuki
发明人： Tsutomu Ikehata , Makoto Yasunaga , Katsuya Masuda , Hirofumi Suzuki
IPC分类号： B41J29/377
CPC分类号： B41J29/377
摘要： A print head for a dot printer having a plurality of needles for printing by projecting the needles selectively from the print head. The print head has a solenoid base having a plurality of solenoids arranged in a circle thereon for driving the needles, a heat conductor having one side fixed in heat conducting relationship to one surface of the solenoid base and having a heat radiating portion extending in one direction from the solenoid base for radiating heat conducted thereto from the solenoid base, and a connecting portion extending in another direction from the solenoid base, a printed circuit board mounted on the side of the heat conductor opposite the one side, and an electrical connector for receiving a cable for supplying signals to a circuit on the printed circuit board and mounted on the connecting portion and electrically connected to the circuit on the printed circuit board.
摘要翻译：一种用于打印机的打印头，其具有多个针，用于通过从打印头选择性地投射针来进行打印。打印头具有螺线管基座，该螺线管基座具有多个排列成圆圈的螺线管，用于驱动针头;热导体，其一侧与螺线管基座的一个表面固定成导热关系，并具有沿一个方向延伸的散热部分从螺线管基座用于从螺线管基座散热的热量，以及从螺线管基座向另一方向延伸的连接部，安装在与一侧相反的一侧的导热体侧的印刷电路板，以及用于接收用于向印刷电路板上的电路提供信号并安装在连接部分上并电连接到印刷电路板上的电路的电缆。

3. 发明授权

US5133613A Printing head using staggered arrangement needles 失效
标题翻译：打印头使用标准布置针
公开(公告)号：US5133613A
公开(公告)日：1992-07-28
申请号：US570467
申请日：1990-08-21
申请人： Tsutomu Ikehata , Hirofumi Suzuki , Katsuya Masuda , Makoto Yasunaga , Yoshimasa Tai
发明人： Tsutomu Ikehata , Hirofumi Suzuki , Katsuya Masuda , Makoto Yasunaga , Yoshimasa Tai
IPC分类号： B41J2/275 , B41J2/235 , B41J2/30
CPC分类号： B41J2/235 , B41J2/30
摘要： A printing head includes solenoids arranged in an annular array for driving needles which are arranged in a zigzag array of two vertical columns. Solenoids corresponding to needles forming one of the columns are arranged on a semicircle of the annular array in the same order as that of the needles on the needle column. Two solenoids respectively corresponding to needles disposed at lower ends of the two needle columns are designed to generate magnetic fluxes whose directions are the same. During underline printing where these two solenoids are alternately energized, the magnetic flux generated by one of the solenoids never acts to increase an effective magnetic flux of the other solenoid at an initial stage of the excitation period thereof, so that the needle of the first solenoid reaches its forwardmost position at an appropriate time. The needle is rapidly restored and its tip prevented from being caught by the ink ribbon. After the forwardmost position is reached by the needle associated with the first solenoid, the magnetic flux generated by the second solenoid never acts to increase the magnetic flux of the first, permitting rapid restoration of the needle.
摘要翻译：打印头包括布置成环形阵列的螺线管，用于驱动针布置成两个垂直列的之字形阵列。对应于形成一个柱的针的螺线管以与针柱上的针的顺序相同的顺序布置在环形阵列的半圆上。分别对应于设置在两个针列的下端的针的两个螺线管被设计成产生方向相同的磁通量。在这两个螺线管交替通电的下划线打印期间，其中一个螺线管产生的磁通量在其激励周期的初始阶段从不会增加另一个螺线管的有效磁通，使得第一螺线管在适当的时候到达最前面的位置。针快速恢复，其尖端防止被墨带卡住。在与第一螺线管相关联的针到达最前面的位置之后，由第二螺线管产生的磁通不会增加第一螺线管的磁通量，从而允许针的快速恢复。

4. 发明授权

US4610553A Leaf spring unit for a dot matrix printer 失效
标题翻译：用于点阵式打印机的板簧单元
公开(公告)号：US4610553A
公开(公告)日：1986-09-09
申请号：US657195
申请日：1984-10-03
申请人： Makoto Yasunaga , Tsutomu Ikehata
发明人： Makoto Yasunaga , Tsutomu Ikehata
IPC分类号： B41J2/28 , B41J3/10
CPC分类号： B41J2/28
摘要： A leaf spring unit has a leaf spring cantilevered on a supporting member, an armature secured to one side of a free end portion of the leaf spring, and a wire secured to the armature. A reinforcement plate is secured to the other side of the leaf spring opposite to the armature. An inner edge of the reinforcement plate is inwardly extended from the inner side of the armature so as to reinforce a part of the leaf spring.
摘要翻译：板簧单元具有在支撑构件上悬臂的板簧，固定到板簧的自由端部的一侧的电枢和固定到电枢的线。加强板被固定到与电枢相对的板簧的另一侧。加强板的内边缘从电枢的内侧向内延伸，以便加强片簧的一部分。

5. 发明授权

US5370467A Print head for dot matrix printer 失效
标题翻译：点阵打印机的打印头
公开(公告)号：US5370467A
公开(公告)日：1994-12-06
申请号：US156924
申请日：1993-11-24
申请人： Tsutomu Ikehata , Makoto Yasunaga , Yukihisa Kato
发明人： Tsutomu Ikehata , Makoto Yasunaga , Yukihisa Kato
IPC分类号： B41J2/235 , B41J2/275 , B41J2/27
CPC分类号： B41J2/275
摘要： A print head for a dot matrix printer has a yoke having a plurality of cores, a plurality of armatures, each corresponding to the core, a plurality of knife edges is formed on the yoke, and a receiving corner is formed on the armature which engages the knife edge so as to be pivoted about the knife edge.
摘要翻译：点阵式打印机的打印头具有多个磁芯的磁轭，多个电枢，各自对应于磁芯，多个刀刃形成在磁轭上，并且在电枢上形成接收角，刀刃以便围绕刀刃枢转。

6. 发明授权

US5257868A Printer head for printer 失效
标题翻译：打印机打印头
公开(公告)号：US5257868A
公开(公告)日：1993-11-02
申请号：US810606
申请日：1991-12-19
申请人： Tsutomu Ikehata , Yukihisa Kato , Makoto Yasunaga
发明人： Tsutomu Ikehata , Yukihisa Kato , Makoto Yasunaga
IPC分类号： B41J2/235 , B41J2/24 , B41J2/275 , B41J2/27
CPC分类号： B41J2/24
摘要： In a printing head for a printer, forward end surfaces of respective outer and inner peripheral walls of a solenoid base and forward end faces of a plurality of respective core sections arranged between the inner and outer peripheral walls along a peripheral direction are formed coextensive with each other. Outer-peripheral-wall abutment surfaces and inner-peripheral-wall abutment surfaces of armatures having respective sections disposed to be drawn opposite to the core sections are formed to be coextensive with each other. Core-section opposed surfaces of the sections to be drawn are formed coextensive with the outer-peripheral-wall abutment surfaces and the inner-peripheral-wall abutment surfaces. In another aspect of the invention, the core-section opposed surfaces are so formed as to be depressed toward a side opposite to the core sections.
摘要翻译：在打印机的打印头中，螺线管基座的各个外周壁和内周壁的前端面以及沿着周向布置在内周壁与外周壁之间的多个芯部的前端面形成为与每个其他。具有设置成与芯部相对的相应部分的电枢的外周壁邻接表面和内周壁邻接表面形成为彼此共同延伸。要被拉伸的部分的芯部相对表面与外周壁邻接表面和内周壁邻接表面共同形成。在本发明的另一方面，芯部相对表面被形成为朝向与芯部相对的一侧被压下。

7. 发明授权

US4687355A Printing head for use in dot printers 失效
标题翻译：打印头用于点阵打印机
公开(公告)号：US4687355A
公开(公告)日：1987-08-18
申请号：US779644
申请日：1985-09-24
申请人： Tsutomu Ikehata , Katsuya Masuda , Makoto Yasunaga , Takao Michioto
发明人： Tsutomu Ikehata , Katsuya Masuda , Makoto Yasunaga , Takao Michioto
IPC分类号： B41J2/25 , B23K11/00 , B23K11/20 , B41J2/265 , B41J2/275 , G02F1/35
CPC分类号： B41J2/275 , B41J2/265
摘要： A printing head comprises a plurality of printing wires which are disposed in alignment with each other and for reciprocal motion. Each of the printing wires is formed by a main body member made of powdered high speed steel, and a chip member made of a rhenium base alloy and welded to an outer tip end of the main body member by means of partial welding. Further, a wire guide member made of zirconia is provided to guide the wire for reciprocal motion of the wire.
摘要翻译：打印头包括彼此对准布置并用于往复运动的多个打印线。每根印刷线均由高速高速粉末制成的主体部件和由铼基合金构成的芯片部件形成，并通过部分焊接方式焊接在主体部件的外端部。此外，设置由氧化锆制成的导线构件，以引导导线用于导线的往复运动。

8. 发明申请

US20050200614A1 Liquid crystal exposure device 有权
标题翻译：液晶曝光装置
公开(公告)号：US20050200614A1
公开(公告)日：2005-09-15
申请号：US10492354
申请日：2003-08-14
申请人： Sadao Masubuchi , Masafumi Yokoyama , Makoto Yasunaga , Masaaki Matsunaga
发明人： Sadao Masubuchi , Masafumi Yokoyama , Makoto Yasunaga , Masaaki Matsunaga
IPC分类号： B41J2/447 , B41J2/465 , G09G5/00
CPC分类号： B41J2/465 , B41J2/447
摘要： In a color liquid crystal exposure apparatus equipped with a liquid crystal shutter comprising a single array of liquid crystal pixels, a cost reduction is achieved by reducing the number of control ICs required to control the liquid crystal pixels in the liquid crystal shutter. The liquid crystal exposure apparatus for exposing a photosensitive member, during a relative movement thereof, comprises: a color light source for emitting a plurality of colored light beams; a liquid crystal shutter having a plurality of liquid crystal pixels arrayed in a direction orthogonal to the direction of the relative movement; and a driving circuit for switching the color light source from one color to another, and for driving the plurality of liquid crystal pixels, wherein the plurality of liquid crystal pixels are divided into a plurality of pixel groups of N liquid crystal pixels each, the N liquid crystal pixels in each pixel group being arrayed, one displaced from another by a prescribed distance, in the direction orthogonal to the direction of the relative movement, and the driving circuit drives the plurality of liquid crystal pixels in time-division fashion so that the liquid crystal pixels having the same displaced position in the plurality of pixel groups are driven at one time.
摘要翻译：在配备有包含单个液晶像素阵列的液晶快门的彩色液晶曝光装置中，通过减少控制液晶快门中的液晶像素所需的控制IC的数量来实现成本降低。用于使感光构件在相对运动期间曝光的液晶曝光装置包括：用于发射多个彩色光束的彩色光源; 具有在与所述相对移动方向正交的方向排列的多个液晶像素的液晶快门; 以及用于将彩色光源从一种颜色切换到另一种颜色的驱动电路，并且用于驱动多个液晶像素，其中多个液晶像素被分成N个液晶像素的多个像素组，每个N个每个像素组中的液晶像素在与相对移动方向正交的方向上被排列成一个从另一个移位了规定距离，并且驱动电路以时分方式驱动多个液晶像素，使得在多个像素组中具有相同位移位置的液晶像素一次被驱动。

9. 发明授权

US5215389A Print head for a dot matrix printer 失效
标题翻译：打印头用于点阵式打印机
公开(公告)号：US5215389A
公开(公告)日：1993-06-01
申请号：US924586
申请日：1992-08-06
申请人： Yukihisa Kato , Tetsuya Yamamoto , Makoto Yasunaga
发明人： Yukihisa Kato , Tetsuya Yamamoto , Makoto Yasunaga
IPC分类号： B41J2/275
CPC分类号： B41J2/275
摘要： A print head for a dot matrix printer has a head body, a plurality of print needles slidably mounted in the head body, a plurality of armatures, each corresponding to the print needle, an electromagnet provided on the head body for attracting a corresponding armature for actuating the print needles. The guide grooves are formed in the head body, corresponding to the armatures. An end portion of the armature is inserted in the guide groove so as to be guided during printing operation.
摘要翻译：点阵打印机的打印头具有头主体，可滑动地安装在头主体中的多个打印针，多个电枢，各自对应于打印针，电磁体设置在头本体上，用于吸引相应的电枢启动打印针。引导槽形成在头部本体中，对应于电枢。电枢的端部插入引导槽中，以在打印操作期间被引导。

10. 发明授权

US4386861A Dot matrix impact printer 失效
标题翻译：点阵冲击打印机
公开(公告)号：US4386861A
公开(公告)日：1983-06-07
申请号：US274742
申请日：1981-06-18
申请人： Toshio Kurihara , Masao Kunita , Makoto Yasunaga , Satoru Uchida
发明人： Toshio Kurihara , Masao Kunita , Makoto Yasunaga , Satoru Uchida
IPC分类号： B41J27/08 , B41J3/12 , B41J27/02
CPC分类号： B41J27/08
摘要： A dot matrix impact printer for color printing comprising a platen and a print wire. The platen comprises a plurality of members made of porous material containing different colors. The print wire and platen member are driven to a position adjacent each other and the print wire is moved to force a paper to the platen, so that a dot is printed on the paper with color ink contained in the corresponding member of the platen.
摘要翻译：一种用于彩色打印的点阵冲击打印机，包括压板和打印线。压板包括多个由不同颜色的多孔材料构成的构件。打印线和压板构件被驱动到彼此相邻的位置，并且打印线被移动以迫使纸张到压板，使得在包含在压板的相应构件中的彩色油墨上的纸上印上点。

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