公开(公告)号：US11774878B2

公开(公告)日：2023-10-03

申请号：US17806297

申请日：2022-06-10

申请人： Ryotaro Konno ,  Junichi Matsumoto ,  Tatsuya Kubo ,  Yuki Osato ,  Yuusuke Tomura ,  Masashi Hommi

发明人： Ryotaro Konno ,  Junichi Matsumoto ,  Tatsuya Kubo ,  Yuki Osato ,  Yuusuke Tomura ,  Masashi Hommi

IPC分类号： G03G15/08 ,  G03G15/00

CPC分类号： G03G15/086 ,  G03G15/0872 ,  G03G15/556 ,  G03G2215/0665 ,  G03G2215/0888

摘要： An amount-of-remaining-toner detecting device includes: a toner housing portion in which a toner bottle is housed, the toner bottle having a bottle body that is cylindrical and in which toner is housed, and a cap that is attached to one end of the bottle body in an axial direction of the bottle body and from which the toner housed in the bottle body is discharged; and circuitry configured to detect an amount of remaining toner in the toner bottle housed in the toner housing portion. The toner housing portion includes a first pair of electrodes facing each other with the bottle body interposed between the first pair of electrodes, and a second pair of electrodes facing each other with the bottle body interposed between the second pair of electrodes, at respective positions closer to the cap than the first pair of electrodes are. The circuitry detects the amount of remaining toner in the bottle body, based on at least one of a capacitance value between the first pair of electrodes or a capacitance value between the second pair of electrodes.

公开(公告)号：USD504071S1

公开(公告)日：2005-04-19

申请号：US29205815

申请日：2004-05-19

申请人： Tatsuya Kubo ,  Masao Wada

设计人： Tatsuya Kubo ,  Masao Wada

公开(公告)号：US06465540B1

公开(公告)日：2002-10-15

申请号：US09525932

申请日：2000-03-14

申请人： Tatsuya Kubo ,  Masatoshi Fujimoto ,  Soichi Hashimoto

发明人： Tatsuya Kubo ,  Masatoshi Fujimoto ,  Soichi Hashimoto

IPC分类号： C08F450

CPC分类号： G03F7/0388 ,  H05K3/287 ,  Y10T428/31511 ,  Y10T428/31522

摘要： An ultraviolet curable resin composition includes (A) an ultraviolet curable resin, (B) an epoxy compound having at least two epoxy groups in one molecule, (C) a photopolymerization initiator and (D) a diluent. The ultraviolet curable resin (A) is obtained by the steps of polymerizing an ethylenically unsaturated monomer component containing (a) an ethylenically unsaturated monomer having epoxy group and (b) a compound having at least two ethylenically unsaturated groups in one molecule to prepare a copolymer, reacting the copolymer with (c) an ethylenically unsaturated monomer having carboxyl group to prepare a chemical intermediate, and reacting the chemical intermediate with (d) one of saturated and unsaturated polybasic acid anhydrides. This resin composition will be preferably used to prepare a photo solder resist ink developable with diluted alkaline aqueous solution.

摘要翻译： 紫外线固化树脂组合物包括（A）紫外线固化树脂，（B）在一个分子中具有至少两个环氧基的环氧化合物，（C）光聚合引发剂和（D）稀释剂。 紫外线硬化性树脂（A）通过以下步骤获得：含有（a）具有环氧基的烯属不饱和单体和（b）在一个分子中具有至少两个烯属不饱和基团的化合物的烯属不饱和单体组分，以制备共聚物 使共聚物与（c）具有羧基的烯属不饱和单体反应以制备化学中间体，并使化学中间体与（d）饱和和不饱和多元酸酐之一反应。 该树脂组合物优选用于制备可用稀碱性水溶液显影的光阻焊油墨。

公开(公告)号：US11604423B2

公开(公告)日：2023-03-14

申请号：US17652753

申请日：2022-02-28

申请人： Yuki Osato ,  Masashi Hommi ,  Yuusuke Tomura ,  Ryotaro Konno ,  Junichi Matsumoto ,  Tatsuya Kubo

发明人： Yuki Osato ,  Masashi Hommi ,  Yuusuke Tomura ,  Ryotaro Konno ,  Junichi Matsumoto ,  Tatsuya Kubo

IPC分类号： G03G15/08 ,  G03G15/00

摘要： A remaining toner amount detection device includes four electrodes and a controller. Each electrode has an arc shape along an outer circumferential surface of a toner bottle, and the four electrodes are spaced a certain distance apart in a circumferential direction so as to surround the toner bottle. The controller detects a remaining toner amount inside the toner bottle by using the four electrodes. The controller determines whether at least one of a first electrostatic capacity value between one pair of adjacent electrodes and a second electrostatic capacity value between the other pair of adjacent electrodes falls within a threshold range. In response to determination that at least one of the electrostatic capacity values falls within the threshold range, the controller detects a remaining toner amount inside the toner bottle based on an electrostatic capacity value, and outputs the detected remaining toner amount.

公开(公告)号：US20220283533A1

公开(公告)日：2022-09-08

申请号：US17652753

申请日：2022-02-28

申请人： Yuki Osato ,  Masashi Hommi ,  Yuusuke Tomura ,  Ryotaro Konno ,  Junichi Matsumoto ,  Tatsuya Kubo

发明人： Yuki Osato ,  Masashi Hommi ,  Yuusuke Tomura ,  Ryotaro Konno ,  Junichi Matsumoto ,  Tatsuya Kubo

IPC分类号： G03G15/00

摘要： A remaining toner amount detection device includes four electrodes and a controller. Each electrode has an arc shape along an outer circumferential surface of a toner bottle, and the four electrodes are spaced a certain distance apart in a circumferential direction so as to surround the toner bottle. The controller detects a remaining toner amount inside the toner bottle by using the four electrodes. The controller determines whether at least one of a first electrostatic capacity value between one pair of adjacent electrodes and a second electrostatic capacity value between the other pair of adjacent electrodes falls within a threshold range. In response to determination that at least one of the electrostatic capacity values falls within the threshold range, the controller detects a remaining toner amount inside the toner bottle based on an electrostatic capacity value, and outputs the detected remaining toner amount.

公开(公告)号：US11029623B2

公开(公告)日：2021-06-08

申请号：US16914720

申请日：2020-06-29

申请人： Tatsuya Kubo ,  Junichi Matsumoto ,  Shuntaroh Tamaki ,  Hiroaki Okamoto

发明人： Tatsuya Kubo ,  Junichi Matsumoto ,  Shuntaroh Tamaki ,  Hiroaki Okamoto

IPC分类号： G03G15/00 ,  G03G15/08 ,  G03G21/20

摘要： A powder amount detector detects an amount of powder in a powder container of a cylindrical shape arranged horizontally. The powder amount detector includes a pair of measuring electrodes configured to detect capacitance between the pair of measuring electrodes to detect the amount of powder. The pair of measuring electrodes is disposed around the powder container. One of the pair of measuring electrodes has a flat shape, and the other of the pair of measuring electrodes has an arc shape following a shape of the powder container.

公开(公告)号：US08148047B2

公开(公告)日：2012-04-03

申请号：US12996852

申请日：2009-02-20

申请人： Koichi Ikegami ,  Noboru Kohiyama ,  Teppei Nishikawa ,  Michiya Higuchi ,  Nobuhito Hamada ,  Hiroko Daido ,  Chieko Inui ,  Tatsuya Kubo

发明人： Koichi Ikegami ,  Noboru Kohiyama ,  Teppei Nishikawa ,  Michiya Higuchi ,  Nobuhito Hamada ,  Hiroko Daido ,  Chieko Inui ,  Tatsuya Kubo

IPC分类号： G03F7/028 ,  G03F7/032 ,  C08F8/14 ,  C08F290/06 ,  C08G59/00

CPC分类号： C08G59/1494 ,  C08F8/14 ,  C08F220/14 ,  C08F283/10 ,  C08F290/06 ,  C08F290/064 ,  C08F290/14 ,  C08F290/144 ,  C08F2220/1825 ,  C08F2220/1858 ,  C08F2220/325 ,  C08F2810/20 ,  C08F2810/30 ,  C08G59/186 ,  G03F7/032 ,  G03F7/038 ,  G03F7/0388 ,  H05K3/287 ,  C08F220/10

摘要： A carboxyl resin according to the present invention is obtained by a process including following steps: epoxy groups on a resin (a) having two or more epoxy groups in one molecule is made to react with 0.3-0.85 mol of a monocarboxylic acid (b) per one epoxy-group equivalent weight to obtain a reaction product (c); the epoxy group or groups on the reaction product (c) are made to react with 0.15-0.95 mol of a polybasic acid (d) per one epoxy-group equivalent weight to obtain a reaction product (e); and the epoxy group or groups on the reaction product (e) are further made to react with 1.0-5.0 mol of a monocarboxylic acid (f) per one epoxy-group equivalent weight. The carboxyl resin thus obtained has an acid value within a range from 20 to 200 mgKOH/g and is soluble in an organic solvent.

摘要翻译： 通过包括以下步骤的方法获得本发明的羧基树脂：使一分子中具有两个以上环氧基的树脂（a）上的环氧基与0.3-0.85摩尔一元羧酸（b）反应， 每个环氧基当量，得到反应产物（c）; 反应产物（c）上的环氧基或基团与每一个环氧基当量的0.15-0.95摩尔多元酸（d）反应，得到反应产物（e）; 反应产物（e）上的环氧基或基团进一步与每个环氧基当量1.0-5.0摩尔一元羧酸（f）反应。 由此得到的羧基树脂的酸值为20〜200mgKOH / g，可溶于有机溶剂。

公开(公告)号：US07466946B2

公开(公告)日：2008-12-16

申请号：US11348305

申请日：2006-02-07

申请人： Akio Tsujita ,  Kaoru Kataoka ,  Tatsuya Kubo

发明人： Akio Tsujita ,  Kaoru Kataoka ,  Tatsuya Kubo

IPC分类号： G03G15/09

CPC分类号： G03G15/0812 ,  G03G15/0921 ,  G03G2215/0648

摘要： A developing unit includes a plurality of developing rolls over which a developer is conveyed and supplied onto an image carrier which is rotatably supported; and at least one pair of the developing rolls being adjacent to each other. In the pair of the developing rolls, one developing roll rotates in a direction opposite to a rotary direction of the image carrier, and the other developing roll rotates in the same direction of the rotary direction of the image carrier. A regulation member is interposed between the pair of the developing rolls. The regulation member regulates a conveyed amount of the developer. The regulation member is disposed to be opposed to a magnet which is provided within the two adjacent developing rolls. A polarity of the magnet in the pair of developing rolls opposed to each other is different from each other.

摘要翻译： 显影单元包括多个显影辊，显影剂通过该显影辊被输送并供应到可旋转地支撑的图像载体上; 并且至少一对显影辊彼此相邻。 在一对显影辊中，一个显影辊沿与图像载体的旋转方向相反的方向旋转，并且另一个显影辊沿与图像载体的旋转方向相同的方向旋转。 调节构件插入在一对显影辊之间。 调节构件调节显影剂的输送量。 调节构件设置成与设置在两个相邻的显影辊内的磁体相对。 彼此相对的一对显影辊中的磁体的极性彼此不同。

公开(公告)号：USD391860S

公开(公告)日：1998-03-10

申请号：US67559

申请日：1997-03-05

申请人： Tatsuya Kubo

设计人： Tatsuya Kubo

公开(公告)号：USD304691S

公开(公告)日：1989-11-21

申请号：US871582

申请日：1986-06-05

申请人： Tatsuya Kubo

设计人： Tatsuya Kubo