Patents by Inventor Koichi Sanpei
Koichi Sanpei has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7971957Abstract: An ink-jet line printer (30) is constituted by multiple ink-jet heads (1-1 to 1-3). Actuators (3-1 to 3-3) are arranged so as to be moved between a home position and a print position, and backup mechanisms (2-1 to 2-3) are arranged at home positions. In this ink-jet line printer, the ink-jet heads can be protected and recovered by backup mechanisms, thus making high-speed continuous printing possible. Even though the backup mechanisms are incorporated, a compact apparatus can still be achieved.Type: GrantFiled: June 5, 2007Date of Patent: July 5, 2011Assignee: Fuji Xerox Co.,Ltd.Inventors: Koichi Sanpei, Mitsuhiro Mori, Akira Iwaishi, Shigeyoshi Nakamura, Katsumi Tateno
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Patent number: 7582344Abstract: A heat roller having a cylindrical sheet-like heating element having a resistance member embedded in an insulating member. The sheet-like heating element is arranged between an inner tube and an outer tube. The outer tube is formed so as to be longer than the inner tube for reducing non-uniformity in heat of the heat roller. Further, a thermal expansion coefficient of a material of the outer tube is greater than that of a material of the inner tube. Moreover, a triple-tube heat roller is provided.Type: GrantFiled: June 21, 2007Date of Patent: September 1, 2009Assignee: Fuji Xerox Co., Ltd.Inventors: Mitsuhiro Mori, Koichi Sanpei, Masatoshi Kimura, Masao Konishi
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Publication number: 20080018696Abstract: An ink-jet line printer (30) is constituted by multiple ink-jet heads (1-1 to 1-3). Actuators (3-1 to 3-3) are arranged so as to be moved between a home position and a print position, and backup mechanisms (2-1 to 2-3) are arranged at home positions. In this ink-jet line printer, the ink-jet heads can be protected and recovered by backup mechanisms, thus making high-speed continuous printing possible. Even though the backup mechanisms are incorporated, a compact apparatus can still be achieved.Type: ApplicationFiled: June 5, 2007Publication date: January 24, 2008Applicant: Fuji Xerox Co., Ltd.Inventors: Koichi Sanpei, Mitsuhiro Mori, Akira Iwaishi, Shigeyoshi Nakamura, Katsumi Tateno
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Publication number: 20070254125Abstract: A heat roller having a cylindrical sheet-like heating element having a resistance member embedded in an insulating member. The sheet-like heating element is arranged between an inner tube and an outer tube. The outer tube is formed so as to be longer than the inner tube for reducing non-uniformity in heat of the heat roller. Further, a thermal expansion coefficient of a material of the outer tube is greater than that of a material of the inner tube. Moreover, a triple-tube heat roller is provided.Type: ApplicationFiled: June 21, 2007Publication date: November 1, 2007Applicant: Fuji Xerox Co., Ltd.Inventors: Mitsuhiro Mori, Koichi Sanpei, Masatoshi Kimura, Masao Konishi
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Patent number: 7240982Abstract: An ink-jet line printer (30) is constituted by multiple ink-jet heads (1-1 to 1-3). Actuators (3-1 to 3-3) are arranged so as to be moved between a home position and a print position, and backup mechanisms (2-1 to 2-3) are arranged at home positions. In this ink-jet line printer, the ink-jet heads can be protected and recovered by backup mechanisms, thus making high-speed continuous printing possible. Even though the backup mechanisms are incorporated, a compact apparatus can still be achieved.Type: GrantFiled: March 7, 2002Date of Patent: July 10, 2007Assignee: Fuji Xerox Co., Ltd.Inventors: Koichi Sanpei, Mitsuhiro Mori, Akira Iwaishi, Shigeyoshi Nakamura, Katsumi Tateno
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Patent number: 7234798Abstract: The present invention relates to an ink jet printer provided with a line type ink jet head formed by a plurality of ink jet heads, in which a plurality of ink jet heads are fixed to a plate, and an ink is injected to an ink injected subject from a plurality of ink jet heads in a state in which a plate surface of the plate and the ink injected subject are faced to each other.Type: GrantFiled: August 30, 2002Date of Patent: June 26, 2007Assignee: Fuji Xerox Co., Ltd.Inventors: Koichi Sanpei, Mitsuhiro Mori, Yoshihiro Watanabe
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Patent number: 7109441Abstract: A heat plate for fixation includes: a metallic base plate; and a heating resistor arranged on a reverse face of the metallic base plate, the heating resistor being formed by laminating, at least, an electric insulating layer and heating resistor layer in this order on the metallic base plate, wherein the heat plate is capable of raising the temperature of the metallic base plate to a fixing temperature when the heating resistor layer is energized and heated. A semicircular heating member for fixation includes the heat plate which is curved so that the metallic base plate has a convex surface, a belt type fixing device is provided with the semicircular heating member, and an electrophotographic image forming apparatus is provided with the belt type fixing device having the semicircular heating member.Type: GrantFiled: November 4, 2005Date of Patent: September 19, 2006Assignees: Fuji Xerox Co., Ltd.Inventors: Koichi Sanpei, Mitsuhiro Mori, Akio Yano, Masatoshi Kimura, Masao Konishi, Takao Kawamura, Akio Harada, Tsuyoshi Nishi, Yukio Yamamoto, Yoshiaki Ohbayashi, Naoya Takehara, Toru Imai
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Patent number: 7026578Abstract: A heat roller having a cylindrical sheet-like heating element having a resistance member embedded into an insulating member. The sheet-like heating element is arranged between an inner tube and an outer tube. The resistance member is formed such that a heating density of the sheet-like heating element is changed in an axial direction of the heat roller. The heating density of the sheet-like heating element at its edge section is greater than that at a center in the axial direction of the heat roller.Type: GrantFiled: December 19, 2003Date of Patent: April 11, 2006Assignee: Fuji Xerox Co., Ltd.Inventors: Mitsuhiro Mori, Koichi Sanpei, Masatoshi Kimura, Masao Konishi
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Publication number: 20060054612Abstract: A heat plate for fixation comprising: a metallic base plate; and a heating resistor arranged on a reverse face of the metallic base plate, the heating resistor being formed by laminating, at least, an electric insulating layer and heating resistor layer in this order on the metallic base plate, wherein the heat plate is capable of raising the temperature of the metallic base plate to a fixing temperature when the heating resistor layer is energized and heated. A semicircular heating member for fixation comprises the heat plate which is curved so that the metallic base plate has a convex surface, a belt type fixing device is provided with the semicircular heating member, and an electrophotographic image forming apparatus is provided with the belt type fixing device comprising the semicircular heating member.Type: ApplicationFiled: November 4, 2005Publication date: March 16, 2006Inventors: Koichi Sanpei, Mitsuhiro Mori, Akio Yano, Masatoshi Kimura, Masao Konishi, Takao Kawamura, Akio Harada, Tsuyoshi Nishi, Yukio Yamamoto, Yoshiaki Ohbayashi, Naoya Takehara, Toru Imai
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Patent number: 6987245Abstract: A heat plate for fixation comprising: a metallic base plate; and a heating resistor arranged on a reverse face of the metallic base plate, the heating resistor being formed by laminating, at least, an electric insulating layer and heating resistor layer in this order on the metallic base plate, wherein the heat plate is capable of raising the temperature of the metallic base plate to a fixing temperature when the heating resistor layer is energized and heated. A semicircular heating member for fixation comprises the heat plate which is curved so that the metallic base plate has a convex surface, a belt type fixing device is provided with the semicircular heating member, and an electrophotographic image forming apparatus is provided with the belt type fixing device comprising the semicircular heating member.Type: GrantFiled: September 27, 2004Date of Patent: January 17, 2006Assignees: Takao Kawamura, Fuji Xerox Co., Ltd.Inventors: Koichi Sanpei, Mitsuhiro Mori, Akio Yano, Masatoshi Kimura, Masao Konishi, Takao Kawamura, Akio Harada, Tsuyoshi Nishi, Yukio Yamamoto, Yoshiaki Ohbayashi, Naoya Takehara, Toru Imai
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Publication number: 20050206692Abstract: The present invention relates to an ink jet printer provided with a line type ink jet head formed by a plurality of ink jet heads, in which a plurality of ink jet heads are fixed to a plate, and an ink is injected to an ink injected subject from a plurality of ink jet heads in a state in which a plate surface of the plate and the ink injected subject are faced to each other.Type: ApplicationFiled: August 30, 2002Publication date: September 22, 2005Applicant: FUJI XEROX CO., LTD.Inventors: Koichi Sanpei, Mitsuhiro Mori, Yoshihiro Watanabe
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Patent number: 6940045Abstract: A heat roller has a cylindrical sheet-like heating element, an inner tube and an outer tube. The sheet-like heating element has a resistance member embedded into an insulating member. The outer tube has a non-linear shape seen in an axial direction. The heat roller is fabricated by supplying pressurized fluid to the inner tube for expanding the inner tube, sheet-like heating element and outer tube toward a die. The die has a non-linear inner shape seen in the axial direction. Therefore, the outer tube of the fabricated heat roller has a non-linear shape. Further, an edge section of the inner tube can simultaneously be formed into a desired shape.Type: GrantFiled: December 19, 2003Date of Patent: September 6, 2005Assignee: Fuji Xerox Co., Ltd.Inventors: Koichi Sanpei, Mitsuhiro Mori, Masatoshi Kimura, Masao Konishi
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Publication number: 20050035106Abstract: A heat plate for fixation comprising: a metallic base plate; and a heating resistor arranged on a reverse face of the metallic base plate, the heating resistor being formed by laminating, at least, an electric insulating layer and heating resistor layer in this order on the metallic base plate, wherein the heat plate is capable of raising the temperature of the metallic base plate to a fixing temperature when the heating resistor layer is energized and heated. A semicircular heating member for fixation comprises the heat plate which is curved so that the metallic base plate has a convex surface, a belt type fixing device is provided with the semicircular heating member, and an electrophotographic image forming apparatus is provided with the belt type fixing device comprising the semicircular heating member.Type: ApplicationFiled: September 27, 2004Publication date: February 17, 2005Applicants: Takao KawamuraInventors: Koichi Sanpei, Mitsuhiro Mori, Akio Yano, Masatoshi Kimura, Masao Konishi, Takao Kawamura, Akio Harada, Tsuyoshi Nishi, Yukio Yamamoto, Yoshiaki Ohbayashi, Naoya Takehara, Toru Imai
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Publication number: 20040246293Abstract: An ink-jet line printer (30) is constituted by multiple ink-jet heads (1-1 to 1-3). Actuators (3-1 to 3-3) are arranged so as to be moved between a home position and a print position, and backup mechanisms (2-1 to 2-3) are arranged at home positions. In this ink-jet line printer, the ink-jet heads can be protected and recovered by backup mechanisms, thus making high-speed continuous printing possible. Even though the backup mechanisms are incorporated, a compact apparatus can still be achieved.Type: ApplicationFiled: April 28, 2004Publication date: December 9, 2004Inventors: Koichi Sanpei, Mitsuhiro Mori, Akira Iwaishi, Shigeyoshi Nakamura, Katsumi Tateno
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Patent number: 6826382Abstract: A heat plate for fixation comprising: a metallic base plate; and a heating resistor arranged on a reverse face of the metallic base plate, the heating resistor being formed by laminating, at least, an electric insulating layer and heating resistor layer in this order on the metallic base plate, wherein the heat plate is capable of raising the temperature of the metallic base plate to a fixing temperature when the heating resistor layer is energized and heated. A semicircular heating member for fixation comprises the heat plate which is curved so that the metallic base plate has a convex surface, a belt type fixing device is provided with the semicircular heating member, and an electrophotographic image forming apparatus is provided with the belt type fixing device comprising the semicircular heating member.Type: GrantFiled: March 27, 2002Date of Patent: November 30, 2004Assignees: Fuji Xerox Co., Ltd.Inventors: Koichi Sanpei, Mitsuhiro Mori, Akio Yano, Masatoshi Kimura, Masao Konishi, Takao Kawamura, Akio Harada, Tsuyoshi Nishi, Yukio Yamamoto, Yoshiaki Ohbayashi, Naoya Takehara, Toru Imai
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Publication number: 20040149709Abstract: A heat roller having a cylindrical sheet-like heating element having a resistance member embedded into an insulating member. The sheet-like heating element is arranged between an inner tube and an outer tube. The resistance member is formed such that a heating density of the sheet-like heating element is changed in an axial direction of the heat roller. The heating density of the sheet-like heating element at its edge section is greater than that at a center in the axial direction of the heat roller.Type: ApplicationFiled: December 19, 2003Publication date: August 5, 2004Applicant: FUJI XEROX CO., LTD.Inventors: Mitsuhiro Mori, Koichi Sanpei, Masatoshi Kimura, Masao Konishi
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Publication number: 20040149710Abstract: A heat roller has a cylindrical sheet-like heating element, an inner tube and an outer tube. The sheet-like heating element has a resistance member embedded into an insulating member. The outer tube has a non-linear shape seen in an axial direction. The heat roller is fabricated by supplying pressurized fluid to the inner tube for expanding the inner tube, sheet-like heating element and outer tube toward a die. The die has a non-linear inner shape seen in the axial direction. Therefore, the outer tube of the fabricated heat roller has a non-linear shape. Further, an edge section of the inner tube can simultaneously be formed into a desired shape.Type: ApplicationFiled: December 19, 2003Publication date: August 5, 2004Applicant: FUJI XEROX CO., LTD.Inventors: Koichi Sanpei, Mitsuhiro Mori, Masatoshi Kimura, Masao Konishi
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Publication number: 20040131813Abstract: A heat roller having a cylindrical sheet-like heating element having a resistance member embedded in an insulating member. The sheet-like heating element is arranged between an inner tube and an outer tube. The outer tube is formed so as to be longer than the inner tube for reducing non-uniformity in heat of the heat roller. Further, a thermal expansion coefficient of a material of the outer tube is greater than that of a material of the inner tube. Moreover, a triple-tube heat roller is provided.Type: ApplicationFiled: December 19, 2003Publication date: July 8, 2004Applicant: FUJI XEROX CO., LTD.Inventors: Mitsuhiro Mori, Koichi Sanpei, Masatoshi Kimura, Masao Konishi
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Publication number: 20030063931Abstract: A heat plate for fixation comprising: a metallic base plate; and a heating resistor arranged on a reverse face of the metallic base plate, the heating resistor being formed by laminating, at least, an electric insulating layer and heating resistor layer in this order on the metallic base plate, wherein the heat plate is capable of raising the temperature of the metallic base plate to a fixing temperature when the heating resistor layer is energized and heated. A semicircular heating member for fixation comprises the heat plate which is curved so that the metallic base plate has a convex surface, a belt type fixing device is provided with the semicircular heating member, and an electrophotographic image forming apparatus is provided with the belt type fixing device comprising the semicircular heating member.Type: ApplicationFiled: March 27, 2002Publication date: April 3, 2003Inventors: Koichi Sanpei, Mitsuhiro Mori, Akio Yano, Masatoshi Kimura, Masao Konishi, Takao Kawamura, Akio Harada, Tsuyoshi Nishi, Yukio Yamamoto, Yoshiaki Ohbayashi, Naoya Takehara, Toru Imai
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Patent number: 6508544Abstract: An ink-jet head includes a head portion having a plurality of head segments and an ink feeding portion, where ink is supplied such that pipes each have one end connected to the head portion and the other end connected to one of ink feeding paths of the ink feeding portion. The pipes are held by elastic ring-shaped members that are further sidewise held by rigid ring-shaped members and vertically sandwiched between the ink feeding paths and an upper end portion of the head portion.Type: GrantFiled: July 18, 2000Date of Patent: January 21, 2003Assignee: Fujitsu LimitedInventors: Masayuki Sasaki, Hiromitsu Soneda, Koichi Sanpei, Mutsuo Watanabe, Takumi Kawamura