Patents by Inventor Toshihiro Kanematsu
Toshihiro Kanematsu 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: 9417582Abstract: An image forming apparatus includes an image forming section and a controller. The image forming section transfers a toner image to a transfer target and includes plural developing units. The plural developing units include a first developing unit and at least one second developing unit. The plural developing units each include an image holding body and a developing roller. The image holding body has an outer circumferential surface and is rotated. The controller controls the image forming section so that, when a low-area-coverage portion and a high-area-coverage portion are disposed adjacent to each other and are formed by the first developing unit, a correction toner image is superposed on a boundary portion, where the low-area-coverage portion and the high-area-coverage portion are adjacent to each other, by the at least one second developing unit.Type: GrantFiled: July 31, 2015Date of Patent: August 16, 2016Assignee: FUJI XEROX CO., LTD.Inventors: Kenta Urayama, Yasuaki Watanabe, Jun Abe, Tomoyuki Yoshii, Toshihiro Kanematsu, Takashi Ochi, Shinji Okuyama, Fumiyuki Honda
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Patent number: 9383683Abstract: A transport mechanism includes: a container that stores a specific developer; a transport body that transports the developer in an axial direction of a shaft about which the transport body rotates in the container while stirring the developer; a bearing that supports the transport body such that the transport body is rotatable about the shaft; and a restricting portion that has a substantially annular shape and a maximum magnetic force of about 20 mT or greater and about 50 mT or smaller and restricts the transportation of the developer past the restricting portion by surrounding the shaft, the restricting portion being provided nearer to a side on which the transport body transports the developer than the bearing in the axial direction of the shaft.Type: GrantFiled: January 30, 2015Date of Patent: July 5, 2016Assignee: FUJI XEROX CO., LTD.Inventors: Fumiyuki Honda, Takashi Ochi, Yasuaki Watanabe, Tomoyuki Yoshii, Jun Abe, Toshihiro Kanematsu, Kenta Urayama, Shinji Okuyama
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Publication number: 20160085180Abstract: A transport mechanism includes: a container that stores a specific developer; a transport body that transports the developer in an axial direction of a shaft about which the transport body rotates in the container while stirring the developer; a bearing that supports the transport body such that the transport body is rotatable about the shaft; and a restricting portion that has a substantially annular shape and a maximum magnetic force of about 20 mT or greater and about 50 mT or smaller and restricts the transportation of the developer past the restricting portion by surrounding the shaft, the restricting portion being provided nearer to a side on which the transport body transports the developer than the bearing in the axial direction of the shaft.Type: ApplicationFiled: January 30, 2015Publication date: March 24, 2016Inventors: Fumiyuki HONDA, Takashi OCHI, Yasuaki WATANABE, Tomoyuki YOSHII, Jun ABE, Toshihiro KANEMATSU, Kenta URAYAMA, Shinji OKUYAMA
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Patent number: 9151589Abstract: A surface texture measurement device capable of resolving errors for each entire display range, a controller for the surface texture measurement device, and a method for controlling the surface texture measurement device that includes selecting any one of the display ranges as a reference range and defining a calibration measurement value for each display range; sequentially inputting the calibration measurement values in place of the measurement values to the range amplifier corresponding to the reference range to obtain a reference display value rDATAi; inputting the calibration measurement values to the range amplifiers corresponding to each display range, then obtaining an AD-converted value ADi and a display value DATAi; computing a gain error rate ki=rDATAi/DATAi, a display resolution DIVi=DATAi/ADi, and a corrected display resolution cDIVi=DIVi×ki; and displaying the corrected display value cDIVi=DIVi×ki.Type: GrantFiled: March 1, 2013Date of Patent: October 6, 2015Assignee: MITUTOYO CORPORATIONInventors: Toshihiro Kanematsu, Hiroomi Honda
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Patent number: 9132593Abstract: A disclosed method for producing a hollow cell array structure includes a first step of layering a deformable material capable of being plastically deformed under a predetermined condition on a first substrate, the first substrate having plural, mutually separated depressions in a surface thereof, such that the deformable material forms mutually isolated spaces in the corresponding depressions; a second step of expanding the spaces in the plural depressions by inducing a gas pressure of the spaces while extending the deformable material on the first substrate, such that plural hollow cells are simultaneously formed in correspondence to the plural depressions in predetermined directions; and a third step of selectively solidifying portions of the plural hollow cells by selectively applying ultraviolet rays thereto.Type: GrantFiled: July 8, 2010Date of Patent: September 15, 2015Assignee: Ricoh Company, Ltd.Inventors: Toshihiro Kanematsu, Masaru Ohgaki, Shinji Aoki, Shinya Seno, Masahiro Masuzawa, Hisayoshi Ohshima, Yukie Inoue
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Patent number: 8995890Abstract: A developing device includes a developing member including a magnet member on which plural magnetic poles including a developing main magnetic pole are magnetized in a circumferential direction and a developer holder that faces an image supporting member, receives the magnet member, and holds a developer, wherein a distribution of a magnetic attraction force in a circumferential direction has a gradient that increases toward a downstream end from an upstream end of a developing area in a developer transport direction of the developer holder, and the magnetic poles are magnetized on the magnet member so that the amount of the increase of the magnetic attraction force between the upstream end and a middle position of the developing area is larger than that between the middle position and the downstream end.Type: GrantFiled: March 25, 2013Date of Patent: March 31, 2015Assignee: Fuji Xerox Co., Ltd.Inventors: Akihisa Maruyama, Toshihiro Kanematsu
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Publication number: 20140235415Abstract: A transporting member includes multiple helical blades that helically extend around a rotation shaft and that have an upstream-side blade and a downstream-side blade, an end portion of the upstream-side blade and an end portion of the downstream-side blade overlapping in a direction perpendicular to an axial direction of the rotation shaft, the multiple helical blades transporting an object in the axial direction via rotation of the rotation shaft; a gap portion that divides the upstream-side blade and the downstream-side blade, the upstream-side blade and the downstream-side blade being arranged at a certain angular interval in a circumferential direction of the rotation shaft; and a regulating portion that regulates an amount of the object that passes through a space between the upstream-side blade and the downstream-side blade in a direction in which the object is transported.Type: ApplicationFiled: October 17, 2013Publication date: August 21, 2014Applicant: FUJI XEROX CO., LTD.Inventors: Yoshitaka NAKAJIMA, Makoto HIROTA, Toshihiro KANEMATSU, Shota OBA, Shigeru INABA
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Patent number: 8768225Abstract: An image forming apparatus includes a rotating image carrier, a charging device, a latent image forming device, a developing device having a developer holder and developing a latent image as a visible image, a voltage application unit that generates a potential difference between the image carrier and the developer holder to form an electric field, by which toner is directed toward the latent image, in a developing region, and a transfer device that transfers the visible image of the image carrier to a medium, wherein the developer holder having a concavo-convex portion having a convex portion and a concave portion is provided in an outer surface thereof and formed such that the volume resistivity of a portion corresponding to the convex portion is set to be larger than the volume resistivity of a portion corresponding to the concave portion.Type: GrantFiled: October 14, 2011Date of Patent: July 1, 2014Assignee: Fuji Xerox Co., Ltd.Inventors: Shota Oba, Takashi Ochi, Shigeru Inaba, Yoshitaka Nakajima, Akihisa Maruyama, Toshihiro Kanematsu
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Patent number: 8676094Abstract: A developing device includes a developer container; a developer holding body including a magnet member and a substantially cylindrical member; a transport member including a rotating shaft and a substantially spiral transport blade; a layer-thickness regulating member; and an interrupting member that is arranged between the developer holding body and the transport member, that intersects with a first virtual plane passing through a facing position between the regulating member and the developer holding body and being adjacent to a rotation locus of a radial-direction outer edge of the transport blade at a position at which a speed in a circumferential direction of the transport blade has a speed component toward the regulating member, and a second virtual plane passing through rotation centers of the developer holding body and transport member, and that interrupts movement of the developer pushed and moving in the radial direction of the transport blade.Type: GrantFiled: November 17, 2011Date of Patent: March 18, 2014Assignee: Fuji Xerox Co., Ltd.Inventors: Yoshitaka Nakajima, Shigeru Inaba, Shota Oba, Takashi Ochi, Akihisa Maruyama, Toshihiro Kanematsu
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Publication number: 20140029986Abstract: A developing device includes a developing member including a magnet member on which plural magnetic poles including a developing main magnetic pole are magnetized in a circumferential direction and a developer holder that faces an image supporting member, receives the magnet member, and holds a developer, wherein the distribution of a magnetic attraction force in a circumferential direction has a gradient that increases toward a downstream end from an upstream end of a developing area in a developer transport direction of the developer holder, and the magnetic poles are magnetized on the magnet member so that the amount of the increase of the magnetic attraction force between the upstream end and a middle position of the developing area is larger than that between the middle position and the downstream end.Type: ApplicationFiled: March 25, 2013Publication date: January 30, 2014Applicant: Fuji Xerox Co., Ltd.Inventors: Akihisa MARUYAMA, Toshihiro KANEMATSU
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Patent number: 8617335Abstract: A method of manufacturing a cell array structure includes a first step of laminating a deformable layer capable of causing plastic deformation on a substrate, the substrate being formed with plural, mutually separated depressions on a top surface thereof, such that the deformable layer forms a mutually isolated space in each of the plural depressions; and a second step of extending the space in each of the plural depressions by causing plastic deformation in the deformable layer, such that there are formed plural columnar cells respectively in correspondence to the plural depressions.Type: GrantFiled: September 6, 2006Date of Patent: December 31, 2013Assignee: Ricoh Company, Ltd.Inventors: Toshihiro Kanematsu, Katsunori Suto, Tomohiro Harada
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Publication number: 20130238281Abstract: A surface texture measurement device capable of resolving errors for each entire display range, a controller for the surface texture measurement device, and a method for controlling the surface texture measurement device that includes selecting any one of the display ranges as a reference range and defining a calibration measurement value for each display range; sequentially inputting the calibration measurement values in place of the measurement values to the range amplifier corresponding to the reference range to obtain a reference display value rDATAi; inputting the calibration measurement values to the range amplifiers corresponding to each display range, then obtaining an AD-converted value ADi and a display value DATAi; computing a gain error rate ki=rDATAi/DATAi, a display resolution DIVi=DATAi/ADi, and a corrected display resolution cDIVi=DIVi×ki; and displaying the corrected display value cDIVi=DIVi×ki.Type: ApplicationFiled: March 1, 2013Publication date: September 12, 2013Applicant: MITUTOYO CORPORATIONInventors: Toshihiro KANEMATSU, Hiroomi HONDA
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Patent number: 8373732Abstract: A liquid droplet flight device is provided that moves an ink or the like using a comparatively low voltage and stably causes flight of even a high viscosity ink or the like. When causing droplets of a liquid inside a liquid retaining section to fly onto a medium transported between liquid droplet discharge means and an opposing electrode in the liquid droplet flight device, a high voltage is applied to the flight electrode from a bias power source to generate an electric field between the flight electrode and the opposing electrode. On/off control of flight control means is performed in this state to apply a drive voltage of a low voltage to an EW drive electrode from a drive power source such that the liquid inside a slit moves to a leading end portion of the flight electrode due to an electrowetting phenomenon, and the liquid that has moved to the leading end portion of the flight electrode flies toward the opposing electrode through the electric field such that a liquid droplet lands on the medium.Type: GrantFiled: August 19, 2008Date of Patent: February 12, 2013Assignee: Ricoh Company, Ltd.Inventors: Hiroshi Takahashi, Ichiro Kadota, Toshihiro Kanematsu, Masaaki Yamada
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Publication number: 20120251189Abstract: An image forming apparatus includes a rotating image carrier, a charging device, a latent image forming device, a developing device having a developer holder and developing a latent image as a visible image, a voltage application unit that generates a potential difference between the image carrier and the developer holder to form an electric field, by which toner is directed toward the latent image, in a developing region, and a transfer device that transfers the visible image of the image carrier to a medium, wherein the developer holder having a concavo-convex portion having a convex portion and a concave portion is provided in an outer surface thereof and formed such that the volume resistivity of a portion corresponding to the convex portion is set to be larger than the volume resistivity of a portion corresponding to the concave portion.Type: ApplicationFiled: October 14, 2011Publication date: October 4, 2012Applicant: FUJI XEROX CO., LTD.Inventors: Shota OBA, Takashi OCHI, Shigeru INABA, Yoshitaka NAKAJIMA, Akihisa MARUYAMA, Toshihiro KANEMATSU
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Patent number: 8276435Abstract: A surface texture measuring instrument includes: a measuring device that includes a detector for detecting surface texture of a workpiece and an X-axis movement mechanism for moving the detector in a measurement direction; an elevation inclination adjuster capable of adjusting an elevation position and an inclination angle of a table on which the measuring device is mounted; a stage on which the workpiece is mounted; and a controller that controls the measuring device and the elevation inclination adjuster. The controller includes: a measurement controller that controls the X-axis movement mechanism to conduct a preliminary measurement and main measurement of the workpiece; a computing unit that acquires a result of the preliminary measurement from the detector and obtains an inclination angle of the workpiece at which the workpiece is inclined to the measurement direction; and a positioning controller for adjusting the inclination angle of the table based on the obtained inclination angle.Type: GrantFiled: July 28, 2009Date of Patent: October 2, 2012Assignee: Mitutoyo CorporationInventors: Toshihiro Kanematsu, Hideki Mishima, Nobuyuki Hama
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Patent number: 8273275Abstract: A disclosed method of manufacturing an image display element structure includes a coating step of coating a substrate surface including a plurality of recessed portions arranged at predetermined intervals, with a coating material that is plastic-deformable, in such a manner as to maintain spaces in the recessed portions; and an expanding step of forming gaps in the coating material coating the substrate surface by expanding gas in the spaces, wherein the gaps correspond to the recessed portions; and a peeling step of peeling off the coating material in which the gaps have been formed, from the substrate surface.Type: GrantFiled: February 25, 2008Date of Patent: September 25, 2012Assignee: Ricoh Company, Ltd.Inventors: Hisayoshi Ohshima, Masaru Ohgaki, Toshihiro Kanematsu, Masahiro Masuzawa, Shinya Seno, Shinji Aoki
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Publication number: 20120230737Abstract: A developing device includes a developer container; a developer holding body including a magnet member and a substantially cylindrical member; a transport member including a rotating shaft and a substantially spiral transport blade; a layer-thickness regulating member; and an interrupting member that is arranged between the developer holding body and the transport member, that intersects with a first virtual plane passing through a facing position between the regulating member and the developer holding body and being adjacent to a rotation locus of a radial-direction outer edge of the transport blade at a position at which a speed in a circumferential direction of the transport blade has a speed component toward the regulating member, and a second virtual plane passing through rotation centers of the developer holding body and transport member, and that interrupts movement of the developer pushed and moving in the radial direction of the transport blade.Type: ApplicationFiled: November 17, 2011Publication date: September 13, 2012Applicant: FUJI XEROX CO., LTD.Inventors: Yoshitaka Nakajima, Shigeru Inaba, Shota Oba, Takashi Ochi, Akihisa Maruyama, Toshihiro Kanematsu
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Patent number: 8241731Abstract: A display panel includes a sheet having first and second spaced apart surfaces defining a space therebetween and a plurality of partitions extending from the first surface to the second surface and dividing the space into a plurality of cells, wherein the thickness of each partition is in a range of 0.01 to 10 ?m.Type: GrantFiled: March 6, 2008Date of Patent: August 14, 2012Assignee: Ricoh Company, Ltd.Inventors: Masaru Ohgaki, Masahiro Masuzawa, Toshihiro Kanematsu, Shinji Aoki, Shinya Seno, Hisayoshi Ohshima
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Patent number: 8202469Abstract: There is provided a method of manufacturing a hollow structural member suitable for precisely manufacturing a hollow structural member whose pitch space of the hollows is below 30 ?m. The method of manufacturing a hollow structural member of this invention is to encapsulate, by using a gas-permeable material in part of a material that constitutes the substrate (5) for manufacturing the hollow structural member, a high-pressure gas by injection in advance, under high-pressure conditions, into the gas-permeable material; to form a plastic deformation film (10) on a surface under reduced-pressure conditions; and to expand and draw the plastic deformation film (10), while preventing the plastic deformation material from entering the recesses (5b), by discharging the high-pressure gas that is encapsulated in the gas-permeable material into each of the recesses (5b), whereby the hollow structural member is manufactured.Type: GrantFiled: March 10, 2009Date of Patent: June 19, 2012Assignee: Ricoh Company, Ltd.Inventors: Toshihiro Kanematsu, Shin-ya Seno
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Publication number: 20120114876Abstract: A disclosed method for producing a hollow cell array structure includes a first step of layering a deformable material capable of being plastically deformed under a predetermined condition on a first substrate, the first substrate having plural, mutually separated depressions in a surface thereof, such that the deformable material forms mutually isolated spaces in the corresponding depressions; a second step of expanding the spaces in the plural depressions by inducing a gas pressure of the spaces while extending the deformable material on the first substrate, such that plural hollow cells are simultaneously formed in correspondence to the plural depressions in predetermined directions; and a third step of selectively solidifying portions of the plural hollow cells by selectively applying ultraviolet rays thereto.Type: ApplicationFiled: July 8, 2010Publication date: May 10, 2012Applicant: RICOH COMPANY, LTD.Inventors: Toshihiro Kanematsu, Masaru Ohgaki, Shinji Aoki, Shinya Seno, Masahiro Masuzawa, Hisayoshi Ohshima, Yukie Inoue