Patents by Inventor Hiroaki Takatsu
Hiroaki Takatsu 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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Publication number: 20230386445Abstract: A terminal includes: a scenario information reproduction means that sequentially reproduces units of scenario information based on reproduction instruction information, the scenario information including the units which are obtained by dividing a document into the units which are predetermined, the reproduction instruction information being set for each of the units in the scenario information; a reaction acquisition means that obtains a reaction of a user to a reproduced content; a reaction analysis means that analyzes a content of the reaction in accordance with the content of the reaction acquired and a timing of the reaction to the reproduced content; and a unit selection means that selects units for the reaction from the units of the scenario information in accordance with an analysis result, the scenario information reproduction means sequentially reproducing the units selected for the reaction.Type: ApplicationFiled: April 20, 2023Publication date: November 30, 2023Inventors: Hiroaki TAKATSU, Tetsunori KOBAYASHI, Shinya FUJIE, Yoichi MATSUYAMA
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Patent number: 11418672Abstract: An image forming apparatus, includes: a media sensor that detects a sheet type; a fixer that fixes the image on a sheet; a storage that stores a fixing temperature for each sheet type; and a hardware processor that controls power supplied to the fixer by pulse-width modulation (PWM) control and controls a temperature of the fixer to the fixing temperature corresponding to the sheet type detected by the media sensor.Type: GrantFiled: August 20, 2020Date of Patent: August 16, 2022Assignee: KONICA MINOLTA, INC.Inventors: Takahiro Tsujimoto, Takeshi Tamada, Tianhua Xu, Hiroaki Takatsu, Katsuyuki Ikuta, Akihiro Hayashi
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Publication number: 20210371223Abstract: A recording medium conveyance device includes a storage, a conveyer that conveys a conveyed object, an ultrasonic sensor that outputs a value indicating an attenuation amount of an ultrasonic wave caused by the conveyed object, and a hardware processor. The hardware processor executes a type detection process of detecting a type of the conveyed object based on output of the ultrasonic sensor and storing the type in the storage and an overlay detection process of detecting whether the conveyed object is in an overlay state in which a gap is present based on output of the ultrasonic sensor, and switches to either one of the type detection process and the overlay detection process. The hardware processor executes the type detection process when the type is not stored in the storage and executes the overlay detection process when the type is stored in the storage.Type: ApplicationFiled: May 28, 2021Publication date: December 2, 2021Applicant: Konica Minolta, Inc.Inventors: Katsuyuki Ikuta, Hiroaki Takatsu, Takeshi Tamada, Takahiro Tsujimoto, Akihiro Hayashi
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Publication number: 20210058529Abstract: An image forming apparatus, includes: a media sensor that detects a sheet type; a fixer that fixes the image on a sheet; a storage that stores a fixing temperature for each sheet type; and a hardware processor that controls power supplied to the fixer by pulse-width modulation (PWM) control and controls a temperature of the fixer to the fixing temperature corresponding to the sheet type detected by the media sensor.Type: ApplicationFiled: August 20, 2020Publication date: February 25, 2021Inventors: Takahiro TSUJIMOTO, Takeshi TAMADA, Tianhua XU, Hiroaki TAKATSU, Katsuyuki IKUTA, Akihiro HAYASHI
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Publication number: 20200120217Abstract: An image processing apparatus includes a member controller that controls a drive prevented member that is prevented in advance from being driven in a standalone mode while an image processing operation is not being carried out, and a plurality of other normal members that are not the drive prevented member, and a hardware processor, wherein the hardware processor allows at least one of the plurality of normal members to be driven after an integrated signal indicating abnormality in at least one of the plurality of normal members is detected, and determines an abnormal member having abnormality from among the plurality of normal members based on presence or absence of the integrated signal with at least one of the plurality of normal members being driven.Type: ApplicationFiled: October 8, 2019Publication date: April 16, 2020Inventors: Tianhua XU, Hiroaki TAKATSU, Takeshi TAMADA, Takahiro TSUJIMOTO, Katsuyuki IKUTA
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Patent number: 10520867Abstract: An image forming apparatus includes a heater, a first heater drive circuit which rectifies AC power from an AC power supply and subjects a current to be conducted to the heater to PWM control, and a second heater drive circuit which allows conduction from the AC power to the heater. The image forming apparatus further includes a switching circuit which sets a drive circuit which is to drive the heater to any one of the first heater drive circuit and the second heater drive circuit and a control unit which controls switching between the drive circuits by the switching circuit.Type: GrantFiled: August 27, 2018Date of Patent: December 31, 2019Assignee: KONICA MINOLTA, INC.Inventors: Takeshi Tamada, Hiroaki Takatsu, Takahiro Tsujimoto, Tianhua Xu
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Publication number: 20190171149Abstract: A recording material discriminating apparatus includes: a hardware processor that: detects a physical property of a recording material in different ways; and when transmittance of the recording material is within a first range, discriminates a type of the recording material by using a detection result from the hardware processor, and when the transmittance of the recording material is within a second range different from the first range, discriminates the type of the recording material by using a detection result from the hardware processor.Type: ApplicationFiled: November 6, 2018Publication date: June 6, 2019Applicant: KONICA MINOLTA, INC.Inventors: Takahiro Tsujimoto, Takeshi Tamada, Hiroaki Takatsu, Tianhua Xu
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Publication number: 20190079435Abstract: An image forming apparatus includes a heater, a first heater drive circuit which rectifies AC power from an AC power supply and subjects a current to be conducted to the heater to PWM control, and a second heater drive circuit which allows conduction from the AC power to the heater. The image forming apparatus further includes a switching circuit which sets a drive circuit which is to drive the heater to any one of the first heater drive circuit and the second heater drive circuit and a control unit which controls switching between the drive circuits by the switching circuit.Type: ApplicationFiled: August 27, 2018Publication date: March 14, 2019Applicant: KONICA MINOLTA, INC.Inventors: Takeshi Tamada, Hiroaki Takatsu, Takahiro Tsujimoto, Tianhua Xu
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Patent number: 10112314Abstract: A post-processing apparatus includes: a moving mechanism configured to move a punching apparatus in a width direction orthogonal to a transportation direction of a sheet; and a sensor configured to optically detect a mark formed on the sheet and indicating a position to be punched. The mark is configured such that an interval in the transportation direction between a plurality of feature portions extending in the width direction is configured to be changed depending on the width direction. The moving mechanism is configured to determine a position of the punching apparatus in the width direction based on a difference between respective timings of detection of the plurality of feature portions.Type: GrantFiled: March 10, 2017Date of Patent: October 30, 2018Assignee: Konica Minolta, Inc.Inventors: Hiroaki Takatsu, Tatsuya Eguchi, Takeshi Ishida, Isao Watanabe, Taku Kimura
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Patent number: 10027835Abstract: An image reading apparatus includes: a movable body configured to illuminate a document with light; and an apparatus body configured to wirelessly transmit power to the movable body, wherein the movable body includes receiver coils, and a feed circuit in which the receiver coils uses receiving power to supply power to a load, the apparatus body includes transmitter coils placed along a track of the receiver coils, the transmitter coils and the receiver coils are placed such that power supply efficiency of any receiver coil with the transmitter coil placed along the track of the receiver coil fluctuates, and power supply efficiency related to one receiver coil increases at a position where power supply efficiency related to the other receiver coil drops, and the feed circuit supplies power sequentially using the receiving power of the receiver coil whose power supply efficiency is increased to highest among the receiver coils.Type: GrantFiled: June 14, 2017Date of Patent: July 17, 2018Assignee: KONICA MINOLTA, INC.Inventors: Takeshi Ishida, Tatsuya Eguchi, Isao Watanabe, Hiroaki Takatsu, Taku Kimura, Atomu Nakashima
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Patent number: 10003714Abstract: An image forming apparatus includes an acquiring unit configured to acquire atmosphere pressure in the installation place of the image forming apparatus, photoconductors, light sources configured to radiate laser light, and a polygon mirror configured to be rotatable. The polygon mirror exposes the photoconductors by reflecting the laser light toward the photoconductors while rotating. The image forming apparatus further includes a control device configured to control rotation of the polygon mirror. The control device outputs an enable signal for allowing the image forming apparatus to perform printing, if rotation of the polygon mirror is stabilized after start of the rotation, and advances the timing of outputting the enable signal as the atmosphere pressure increases.Type: GrantFiled: August 29, 2017Date of Patent: June 19, 2018Assignee: KONICA MINOLTA, INC.Inventors: Tatsuya Eguchi, Isao Watanabe, Takeshi Ishida, Hiroaki Takatsu, Taku Kimura, Atomu Nakashima
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Publication number: 20180059571Abstract: An image forming apparatus includes an acquiring unit configured to acquire atmosphere pressure in the installation place of the image forming apparatus, photoconductors, light sources configured to radiate laser light, and a polygon mirror configured to be rotatable. The polygon mirror exposes the photoconductors by reflecting the laser light toward the photoconductors while rotating. The image forming apparatus further includes a control device configured to control rotation of the polygon mirror. The control device outputs an enable signal for allowing the image forming apparatus to perform printing, if rotation of the polygon mirror is stabilized after start of the rotation, and advances the timing of outputting the enable signal as the atmosphere pressure increases.Type: ApplicationFiled: August 29, 2017Publication date: March 1, 2018Applicant: KONICA MINOLTA, INC.Inventors: Tatsuya EGUCHI, Isao WATANABE, Takeshi ISHIDA, Hiroaki TAKATSU, Taku KIMURA, Atomu NAKASHIMA
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Publication number: 20170374217Abstract: An image reading apparatus includes: a movable body configured to illuminate a document with light; and an apparatus body configured to wirelessly transmit power to the movable body, wherein the movable body includes receiver coils, and a feed circuit in which the receiver coils uses receiving power to supply power to a load, the apparatus body includes transmitter coils placed along a track of the receiver coils, the transmitter coils and the receiver coils are placed such that power supply efficiency of any receiver coil with the transmitter coil placed along the track of the receiver coil fluctuates, and power supply efficiency related to one receiver coil increases at a position where power supply efficiency related to the other receiver coil drops, and the feed circuit supplies power sequentially using the receiving power of the receiver coil whose power supply efficiency is increased to highest among the receiver coils.Type: ApplicationFiled: June 14, 2017Publication date: December 28, 2017Applicant: KONICA MINOLTA, INC.Inventors: Takeshi ISHIDA, Tatsuya EGUCHI, Isao WATANABE, Hiroaki TAKATSU, Taku KIMURA, Atomu NAKASHIMA
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Publication number: 20170259447Abstract: A post-processing apparatus includes: a moving mechanism configured to move a punching apparatus in a width direction orthogonal to a transportation direction of a sheet; and a sensor configured to optically detect a mark formed on the sheet and indicating a position to be punched. The mark is configured such that an interval in the transportation direction between a plurality of feature portions extending in the width direction is configured to be changed depending on the width direction. The moving mechanism is configured to determine a position of the punching apparatus in the width direction based on a difference between respective timings of detection of the plurality of feature portions.Type: ApplicationFiled: March 10, 2017Publication date: September 14, 2017Applicant: Konica Minolta, Inc.Inventors: Hiroaki Takatsu, Tatsuya Eguchi, Takeshi Ishida, Isao Watanabe, Taku Kimura
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Patent number: 9709944Abstract: A sheet post-processing device for post-processing of a recording sheet ejected from an image forming device in an ejection direction, the sheet post-processing device including: a first tray on which the recording sheet is placed after ejection; a push-out member that pushes out, in a push-out direction different from the ejection direction, the recording sheet placed on the first tray; and a guide member adjacent to an ejection direction downstream end of the first tray, the guide member supporting a portion of the recording sheet that protrudes from the first tray in the ejection direction. The guide member includes a resistive force reduction unit that reduces a resistive force that occurs due to contact between the guide member and the recording sheet, the resistive force hindering the pushing out of the recording sheet when the push-out member pushes out the recording sheet.Type: GrantFiled: September 1, 2015Date of Patent: July 18, 2017Assignee: KONICA MINOLTA, INC.Inventors: Hiroaki Takatsu, Naoya Nakayama, Tatsuya Eguchi
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Publication number: 20160062297Abstract: A sheet post-processing device for post-processing of a recording sheet ejected from an image forming device in an ejection direction, the sheet post-processing device including: a first tray on which the recording sheet is placed after ejection; a push-out member that pushes out, in a push-out direction different from the ejection direction, the recording sheet placed on the first tray; and a guide member adjacent to an ejection direction downstream end of the first tray, the guide member supporting a portion of the recording sheet that protrudes from the first tray in the ejection direction. The guide member includes a resistive force reduction unit that reduces a resistive force that occurs due to contact between the guide member and the recording sheet, the resistive force hindering the pushing out of the recording sheet when the push-out member pushes out the recording sheet.Type: ApplicationFiled: September 1, 2015Publication date: March 3, 2016Inventors: Hiroaki TAKATSU, Naoya NAKAYAMA, Tatsuya EGUCHI
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Patent number: 8777830Abstract: In a paper folding device, a first driving unit for forming a first folding line on the paper moves a first folding plate member to the paper fed to a first feeding position until load on the first folding plate member reaches a prescribed value or higher. A time period from the start of driving of the first folding unit by the first driving unit to the start of driving of a second folding unit by a second driving unit is determined based on characteristic of paper.Type: GrantFiled: June 10, 2011Date of Patent: July 15, 2014Assignee: Konica Minolta Business Technologies, Inc.Inventors: Teruhiko Toyoizumi, Takashi Watanabe, Hiroaki Takatsu, Hitoshi Asano, Takafumi Tanaka
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Patent number: 8620205Abstract: An image formation apparatus is connectable to a post processing apparatus for performing a post process to a sheet. The image formation apparatus includes: a power source for outputting a voltage to a first load and a second load, the first load being provided in the image formation apparatus and being involved in image formation, the second load being provided in the post processing apparatus and being involved in the post process; a power source controller for increasing the output voltage of the power source during an operation of the second load; and a load controller for controlling an operation of the first load such that an output of the first load falls within a predetermined range during the operation of the second load.Type: GrantFiled: February 25, 2011Date of Patent: December 31, 2013Assignee: Konica Minolta Business Technologies, Inc.Inventors: Natsuyo Higashi, Satoru Sasaki, Yoshiki Katayama, Hiroaki Takatsu, Hirotada Seki
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Patent number: 8606123Abstract: When a unit containing a fuse is mounted, in response to detection of a potential indicating that the fuse has not been blown by a detection circuit, a current for blowing the fuse is supplied from a blowing circuit to the mounted unit containing the fuse, and operation of the blowing circuit is checked based on potentials detected by the detection circuit before current supply and after current supply, respectively. When a unit containing a non-blown component instead of a fuse is mounted, a current is supplied from the blowing circuit to the mounted unit containing the non-blown component, and operation of the blowing circuit is checked based on potentials detected by the detection circuit before current supply and during current supply, respectively, or potentials detected by the detection circuit before current supply and after current supply, respectively.Type: GrantFiled: January 14, 2011Date of Patent: December 10, 2013Assignee: Konica Minolta Business Technologies, Inc.Inventors: Junichi Arai, Hiroaki Takatsu
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Publication number: 20130095991Abstract: A sheet folder includes a blade for bending a sheet, a pair of folding rollers for sandwiching the sheet bent by the blade, a heating unit for heating a folded part of the sheet sandwiched between the pair of folding rollers by the blade, a temperature detection unit for detecting a temperature of the folded part, and a control unit for keeping a state in which the sheet is sandwiched between the pair of folding rollers until at least one of a temperature change and a temperature of the folded part that are detected by the temperature detection unit satisfies a prescribed condition after the blade allows the sheet to be sandwiched between the pair of folding rollers.Type: ApplicationFiled: October 16, 2012Publication date: April 18, 2013Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INCInventors: Takeshi ISHIDA, Kiyohito TSUJIHARA, Takatoshi HAMADA, Hiroaki TAKATSU, Yohei YAMADA, Akimasa ISHIKAWA