Patents by Inventor Hirofumi Ueno
Hirofumi Ueno 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: 10175645Abstract: An image forming apparatus includes an apparatus body, an image holding member, at least one image forming unit, a recording medium container, a plate-shaped separator, and an air blowing device. The at least one image forming unit forms an image on the image holding member. The recording medium container contains a recording medium to be fed to the at least one image forming unit. The separator has an opening, is adjacent to the at least one image forming unit in the apparatus body, and separates the at least one image forming unit and the recording medium container from each other. The air blowing device is disposed at the opening provided in the separator. An adjacent space in which the recording medium container is disposed is provided. The air blowing device blows air from the adjacent space toward the at least one image forming unit.Type: GrantFiled: March 7, 2017Date of Patent: January 8, 2019Assignee: FUJI XEROX CO., LTD.Inventors: Satoru Nishikawa, Hirofumi Ueno, Satoshi Takada, Xubin Zhou, Naoki Sambe
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Patent number: 10073413Abstract: An image forming apparatus includes an air blowing device, an apparatus body, and at least one developer container that has an outer periphery, that is disposed in the apparatus body, and that contains developer. The image forming apparatus has a first transport path that allows a recording medium having undergone heat fixing is transported therethrough and a second transport path that extends in a different direction from a direction of the first transport path and that allows the recording medium to be transported along the outer periphery of the at least one developer container. A space is formed between the at least one developer container and the second transport path. The air blowing device is disposed between the first transport path and the at least one developer container, causes air to flow through the space so as to blow the air toward the first transport path.Type: GrantFiled: March 8, 2017Date of Patent: September 11, 2018Assignee: FUJI XEROX CO., LTD.Inventors: Satoshi Takada, Satoru Nishikawa, Hirofumi Ueno, Xubin Zhou, Naoki Sambe
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Publication number: 20180067454Abstract: An image forming apparatus includes an air blowing device, an apparatus body, and at least one developer container that has an outer periphery, that is disposed in the apparatus body, and that contains developer. The image forming apparatus has a first transport path that allows a recording medium having undergone heat fixing is transported therethrough and a second transport path that extends in a different direction from a direction of the first transport path and that allows the recording medium to be transported along the outer periphery of the at least one developer container. A space is formed between the at least one developer container and the second transport path. The air blowing device is disposed between the first transport path and the at least one developer container, causes air to flow through the space so as to blow the air toward the first transport path.Type: ApplicationFiled: March 8, 2017Publication date: March 8, 2018Applicant: FUJI XEROX CO., LTD.Inventors: Satoshi TAKADA, Satoru NISHIKAWA, Hirofumi UENO, Xubin ZHOU, Naoki SAMBE
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Patent number: 9897971Abstract: A powder collecting device includes a collecting container and a ventilation passage. The collecting container is removably attachable to a housing of a processing apparatus including a powder processing unit, has one or more collecting openings through which heat-melting powder transported from the powder processing unit is collected, and includes an accommodation space capable of accommodating the collected powder. The ventilation passage is partitioned from the accommodation space of the collecting container. Airflow generated by an airflow generator passes through the ventilation passage. The ventilation passage extends in a longitudinal direction of the collecting container, and has an inlet through which the airflow is introduced and a ventilation hole formed in a downstream section of the ventilation passage in a direction of the airflow.Type: GrantFiled: March 7, 2017Date of Patent: February 20, 2018Assignee: FUJI XEROX CO., LTD.Inventor: Hirofumi Ueno
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Publication number: 20180011442Abstract: An image forming apparatus includes an apparatus body, an image holding member, at least one image forming unit, a recording medium container, a plate-shaped separator, and an air blowing device. The at least one image forming unit forms an image on the image holding member. The recording medium container contains a recording medium to be fed to the at least one image forming unit. The separator has an opening, is adjacent to the at least one image forming unit in the apparatus body, and separates the at least one image forming unit and the recording medium container from each other. The air blowing device is disposed at the opening provided in the separator. An adjacent space in which the recording medium container is disposed is provided. The air blowing device blows air from the adjacent space toward the at least one image forming unit.Type: ApplicationFiled: March 7, 2017Publication date: January 11, 2018Applicant: FUJI XEROX CO., LTD.Inventors: Satoru NISHIKAWA, Hirofumi UENO, Satoshi TAKADA, Xubin ZHOU, Naoki SAMBE
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Publication number: 20180011441Abstract: A powder collecting device includes a collecting container and a ventilation passage. The collecting container is removably attachable to a housing of a processing apparatus including a powder processing unit, has one or more collecting openings through which heat-melting powder transported from the powder processing unit is collected, and includes an accommodation space capable of accommodating the collected powder. The ventilation passage is partitioned from the accommodation space of the collecting container. Airflow generated by an airflow generator passes through the ventilation passage. The ventilation passage extends in a longitudinal direction of the collecting container, and has an inlet through which the airflow is introduced and a ventilation hole formed in a downstream section of the ventilation passage in a direction of the airflow.Type: ApplicationFiled: March 7, 2017Publication date: January 11, 2018Applicant: FUJI XEROX CO., LTD.Inventor: Hirofumi UENO
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Patent number: 9400479Abstract: A waste toner container includes a waste toner container body and a dust collector. The waste toner container body has a first end and stores waste toner discharged from an apparatus body. The dust collector is disposed on a first end side of the waste toner container body, allows passage therethrough of air to be exhausted from the apparatus body, and traps dust that enters the dust collector together with an airflow.Type: GrantFiled: October 27, 2015Date of Patent: July 26, 2016Assignee: FUJI XEROX CO., LTD.Inventors: Hirofumi Ueno, Akira Harada, Atsushi Kaneko
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Patent number: 9291995Abstract: An image forming apparatus includes a housing; an image forming section that is provided within the housing and forms an image onto a recording medium; an output section that outputs the recording medium, having the image formed thereon by the image forming section, outward from the housing; a loading section on which the recording medium output from the output section is loaded and that is provided with an air hole; and a cooling unit that allows air to flow between an interior of the housing and the loading section via the air hole so as to cool a surface, which faces the loading section, of the recording medium loaded on the loading section.Type: GrantFiled: June 18, 2013Date of Patent: March 22, 2016Assignee: FUJI XEROX CO., LTD.Inventor: Hirofumi Ueno
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Patent number: 9270106Abstract: A temperature protection device of an electronic device according to the present technology is inserted and connected in a current-carrying circuit between a power supply unit and an electronic device main body in which a temperature detecting element is installed, and includes a first switch inserted and connected in series in the current-carrying circuit from the power supply unit to the electronic device main body, a cutoff unit for controlling on/off of the first switch, a current fusing element of which one end is connected to the current-carrying circuit to the electronic device main body, a second switch connected to the other end of the current fusing element, and a controller for controlling on/off of the second switch based on a temperature detection signal from the temperature detecting element.Type: GrantFiled: December 11, 2013Date of Patent: February 23, 2016Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventor: Hirofumi Ueno
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Publication number: 20140177121Abstract: A temperature protection device of an electronic device according to the present technology is inserted and connected in a current-carrying circuit between a power supply unit and an electronic device main body in which a temperature detecting element is installed, and includes a first switch inserted and connected in series in the current-carrying circuit from the power supply unit to the electronic device main body, a cutoff unit for controlling on/off of the first switch, a current fusing element of which one end is connected to the current-carrying circuit to the electronic device main body, a second switch connected to the other end of the current fusing element, and a controller for controlling on/off of the second switch based on a temperature detection signal from the temperature detecting element.Type: ApplicationFiled: December 11, 2013Publication date: June 26, 2014Applicant: PANASONIC CORPORATIONInventor: Hirofumi UENO
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Publication number: 20140126925Abstract: An image forming apparatus includes a housing; an image forming section that is provided within the housing and forms an image onto a recording medium; an output section that outputs the recording medium, having the image formed thereon by the image forming section, outward from the housing; a loading section on which the recording medium output from the output section is loaded and that is provided with an air hole; and a cooling unit that allows air to flow between an interior of the housing and the loading section via the air hole so as to cool a surface, which faces the loading section, of the recording medium loaded on the loading section.Type: ApplicationFiled: June 18, 2013Publication date: May 8, 2014Inventor: Hirofumi UENO
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Patent number: 7307378Abstract: An in-line type electron gun using a field superimposing type main lens system is provided that can attain good focusing properties by decreasing the size of the electron beam spot on the entire surface of the phosphor screen without being formed to be mechanically large. A field superimposing type main lens is formed by disposing two tubular electrodes opposite to each other and disposing a plate-like field correction electrode on each of the tubular electrodes on the sides not opposite to each other. On each of the opposite sides of the two tubular electrodes, an opening is formed by an edge portion and a folded portion. The shape of the opening may be an elongated flat-sided oval shaped aperture (laterally elongated aperture) that is formed by straight lines and semicircles and has a major diameter in the horizontal direction and a minor diameter in the vertical direction.Type: GrantFiled: January 28, 2005Date of Patent: December 11, 2007Assignee: Matsushita Toshiba Picture Display Co., Ltd.Inventors: Hirofumi Ueno, Tsutomu Takekawa
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Patent number: 7135813Abstract: A main lens is formed by a focus electrode, an intermediate electrode, and an anode electrode successively arranged in a traveling direction of an electron beam. The focus electrode and the anode electrode respectively have an electron beam passage aperture common to three electron beams, having a major axis in a horizontal direction in a portion opposed to the intermediate electrode, and three electron beam passage apertures through which the three electron beams pass are formed respectively in the focus electrode and the anode electrode. Aperture dimensions in a vertical direction of the electron beam passage apertures common to the three electron beams formed respectively in the focus electrode and the anode electrode are smaller than those in the vertical direction of the electron beam passage apertures formed in portions of the intermediate electrode respectively opposed to the focus electrode and the anode electrode.Type: GrantFiled: April 7, 2005Date of Patent: November 14, 2006Assignee: Matsushita Toshiba Picture Display Co., Ltd.Inventors: Tsutomu Takekawa, Hirofumi Ueno
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Patent number: 7122977Abstract: A prefocus lens section is formed by a screen electrode and an additional electrode. A main lens section is formed by a focus electrode, an anode electrode and an intermediate electrode that is disposed between the focus electrode and the anode electrode. Each of the focus electrode and the intermediate electrode has a cylindrical electrode on at least one of opposed faces thereof. The intermediate electrode and the anode electrode have cylindrical electrodes on opposed faces thereof. A voltage with a level higher than a focus voltage and lower than an anode voltage is applied to the additional electrode and the intermediate electrode.Type: GrantFiled: May 14, 2004Date of Patent: October 17, 2006Assignee: Kabushiki Kaisha ToshibaInventors: Hirofumi Ueno, Tsutomu Takekawa
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Patent number: 7030548Abstract: A prefocus lens section is formed by a second grid and a third grid in a substantially rotation-symmetric fashion. A sub-lens section is formed by the third grid and a first segment. A main lens section is formed by a fourth grid and a fifth grid. The third grid is supplied with a voltage that is higher than a focus voltage and lower than an anode voltage. An electron beam, which is prior to entering the main lens section, is shaped to have a greater horizontal dimension than a vertical dimension.Type: GrantFiled: September 17, 2004Date of Patent: April 18, 2006Assignee: Kabushiki Kaisha ToshibaInventors: Hirofumi Ueno, Tsutomu Takekawa
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Publication number: 20050258731Abstract: A color cathode ray tube apparatus includes: a valve; a phosphor screen; an electron gun including an electron beam generating portion for generating three electron beams, a focusing electrode, an anode electrode, a first field correction electrode and a second field correction electrode; and a deflector for deflecting the electron beams emitted from the electron gun, wherein the focusing electrode, the first field correction electrode, the anode electrode and the second field correction electrode form an electron lens having a focusing force in a vertical direction, which is perpendicular to the horizontal direction, stronger than its focusing force in the horizontal direction inside the focusing electrode, and having a diverging force in the vertical direction greater than its diverging force in the horizontal direction inside the anode electrode, by applying a focus voltage to the focusing electrode and the first field correction electrode and applying an anode voltage higher than the focus voltage to theType: ApplicationFiled: May 19, 2005Publication date: November 24, 2005Applicant: Matsushita Toshiba Picture Display Co., Ltd.Inventors: Hirofumi Ueno, Yasufumi Wada, Hiroyuki Tomoyasu, Hiroji Morimoto, Tomonari Ishihara, Tsutomu Takekawa, Koji Nishiyama
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Publication number: 20050231094Abstract: A main lens is formed by a focus electrode, an intermediate electrode, and an anode electrode successively arranged in a traveling direction of an electron beam. The focus electrode and the anode electrode respectively have an electron beam passage aperture co mmon to three electron beams, having a major axis in a horizontal direction in a portion opposed to the intermediate electrode, and three electron beam passage apertures through which the three electron beams pass are formed respectively in the focus electrode and the anode electrode. Aperture dimensions in a vertical direction of the electron beam passage apertures common to the three electron beams formed respectively in the focus electrode and the anode electrode are smaller than those in the vertical direction of the electron beam passage apertures formed in portions of the intermediate electrode respectively opposed to the focus electrode and the anode electrode.Type: ApplicationFiled: April 7, 2005Publication date: October 20, 2005Applicant: Matsushita Toshiba Picture Display Co., Ltd.Inventors: Tsutomu Takekawa, Hirofumi Ueno
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Publication number: 20050174034Abstract: An in-line type electron gun using a field superimposing type main lens system is provided that can attain good focusing properties by decreasing the size of the electron beam spot on the entire surface of the phosphor screen without being formed to be mechanically large. A field superimposing type main lens is formed by disposing two tubular electrodes opposite to each other and disposing a plate-like field correction electrode on each of the tubular electrodes on the sides not opposite to each other. On each of the opposite sides of the two tubular electrodes, an opening is formed by an edge portion and a folded portion. The shape of the opening may be an elongated flat-sided oval shaped aperture (laterally elongated aperture) that is formed by straight lines and semicircles and has a major diameter in the horizontal direction and a minor diameter in the vertical direction.Type: ApplicationFiled: January 28, 2005Publication date: August 11, 2005Applicant: Matsushita Toshiba Picture Display Co., Ltd.Inventors: Hirofumi Ueno, Tsutomu Takekawa
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Publication number: 20050057196Abstract: A prefocus lens section is formed by a second grid and a third grid in a substantially rotation-symmetric fashion. A sub-lens section is formed by the third grid and a first segment. A main lens section is formed by a fourth grid and a fifth grid. The third grid is supplied with a voltage that is higher than a focus voltage and lower than an anode voltage. An electron beam, which is prior to entering the main lens section, is shaped to have a greater horizontal dimension than a vertical dimension.Type: ApplicationFiled: September 17, 2004Publication date: March 17, 2005Inventors: Hirofumi Ueno, Tsutomu Takekawa
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Patent number: 6853122Abstract: At least one of the electrodes of an electron gun assembly is constructed by coupling at least first and second electrode members arranged in a direction of passing of electron beams. The first electrode member has a projecting portion on an end face thereof, which is to be coupled to the second electrode member disposed adjacent to the first electrode member. The first electrode member is coupled to the second electrode member via the projecting portion.Type: GrantFiled: June 18, 2001Date of Patent: February 8, 2005Assignee: Kabushiki Kaisha ToshibaInventors: Noriyuki Miyamoto, Tsutomu Takekawa, Hirofumi Ueno, Masatane Jida, Kazunori Satou, Tomonari Ishihara