Patents by Inventor Kazunori Hiramatsu
Kazunori Hiramatsu 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: 20230302836Abstract: A liquid ejecting apparatus includes an ejecting head and a camera unit for acquiring a state of the ejecting head, in which the camera unit includes a camera for imaging an object, a housing in which the camera is housed and which includes an opening on an imaging path that couples the camera and the object, and an opening/closing member, the opening/closing member includes a reference chart serving as a reference for adjustment of the camera and a chart cover, in a first mode, the opening/closing member brings the opening into a closed state, and the chart cover covers the reference chart, in a second mode, the opening/closing member brings the opening into an open state, and the chart cover covers the reference chart, and in a third mode, the opening/closing member brings the opening into the closed state, and the chart cover does not cover the reference chart.Type: ApplicationFiled: March 21, 2023Publication date: September 28, 2023Inventors: Kazunori HIRAMATSU, Yuichi SHIKAGAWA, Mamoru UKITA
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Patent number: 10744761Abstract: A first wiring supplies a first driving signal to one end of a first piezoelectric elements; a second wiring supplies a first voltage to the other end of the first piezoelectric element to allow the first voltage to maintain the other end of the first piezoelectric element to a common electric potential; a third wiring supplies a second driving signal to one end of a second piezoelectric elements; and a fourth wiring supplies a second signal to the other end of the second piezoelectric element to allow the second signal to maintain the other end of the second piezoelectric element to the common electric potential. The second wiring is arranged between the first wiring and the fourth wiring, the fourth wiring is arranged between the second wiring and the third wiring, and the second wiring and the fourth wiring are arranged between the first wiring and the third wiring.Type: GrantFiled: January 29, 2019Date of Patent: August 18, 2020Assignee: Seiko Epson CorporationInventors: Sukehiro Ito, Kazunori Hiramatsu
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Patent number: 10737488Abstract: Provided is a droplet discharging device capable of, while suppressing influence on a droplet discharge mode of a discharging head, suppressing heat generation of a head driving circuit for driving the discharging head. A printing apparatus (10) (droplet discharging device) includes a discharging head (54) configured to discharge ink, a head driving circuit (56) configured to drive the discharging head (54), a heat dissipation unit (57) configured to dissipate heat generated in the head driving circuit (56), a carriage (52) configured to move in a state of supporting the discharging head (54), the head driving circuit (56), and the heat dissipation unit (57), and at least one air blowing unit (60) disposed outside a movement region of the carriage (52) and capable of generating an airflow toward the heat dissipation unit (57) supported by the carriage (52).Type: GrantFiled: May 25, 2017Date of Patent: August 11, 2020Assignee: Seiko Epson CorporationInventor: Kazunori Hiramatsu
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Patent number: 10464314Abstract: A liquid discharging apparatus includes a print head that has a driving element and discharges a liquid, a drive signal generation circuit that generates the drive signal based on a drive signal generation control signal for controlling generation of the drive signal, and a drive circuit substrate on which the drive signal generation circuit is provided. The drive circuit substrate has an input connector that inputs the drive signal generation control signal into the drive circuit substrate and an output connector that outputs the drive signal from the drive circuit substrate. A distance between the input connector and the output connector is shorter than a distance between the drive signal generation circuit and the input connector. The distance between the input connector and the output connector is shorter than a distance between the drive signal generation circuit and the output connector.Type: GrantFiled: February 28, 2018Date of Patent: November 5, 2019Assignee: Seiko Epson CorporationInventors: Sukehiro Ito, Masashi Asakawa, Kazunori Hiramatsu
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Publication number: 20190232646Abstract: A first wiring supplies a first driving signal to one end of a first piezoelectric elements; a second wiring supplies a first voltage to the other end of the first piezoelectric element to allow the first voltage to maintain the other end of the first piezoelectric element to a common electric potential; a third wiring supplies a second driving signal to one end of a second piezoelectric elements; and a fourth wiring supplies a second signal to the other end of the second piezoelectric element to allow the second signal to maintain the other end of the second piezoelectric element to the common electric potential. The second wiring is arranged between the first wiring and the fourth wiring, the fourth wiring is arranged between the second wiring and the third wiring, and the second wiring and the fourth wiring are arranged between the first wiring and the third wiring.Type: ApplicationFiled: January 29, 2019Publication date: August 1, 2019Inventors: Sukehiro ITO, Kazunori HIRAMATSU
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Publication number: 20190232648Abstract: Provided is a droplet discharging device capable of, while suppressing influence on a droplet discharge mode of a discharging head, suppressing heat generation of a head driving circuit for driving the discharging head. A printing apparatus (10) (droplet discharging device) includes a discharging head (54) configured to discharge ink, a head driving circuit (56) configured to drive the discharging head (54), a heat dissipation unit (57) configured to dissipate heat generated in the head driving circuit (56), a carriage (52) configured to move in a state of supporting the discharging head (54), the head driving circuit (56), and the heat dissipation unit (57), and at least one air blowing unit (60) disposed outside a movement region of the carriage (52) and capable of generating an airflow toward the heat dissipation unit (57) supported by the carriage (52).Type: ApplicationFiled: May 25, 2017Publication date: August 1, 2019Inventor: Kazunori HIRAMATSU
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Patent number: 10160202Abstract: A liquid discharging apparatus includes a print head that discharges a liquid, a carriage that is mounted on the print head, a control signal generation circuit, a drive signal generation circuit, a first cable through which a drive signal generation control signal is transmitted to the drive signal generation circuit, a second cable through which a drive signal is transmitted to the print head, a control circuit substrate on which the control signal generation circuit is provided, and a drive circuit substrate on which the drive signal generation circuit is provided. The shortest distance between the control circuit substrate and the carriage is longer than the shortest distance between the drive circuit substrate and the carriage. The drive circuit substrate is provided at a position where a region in which the carriage moves and at least a part of the drive circuit substrate overlap each other.Type: GrantFiled: February 28, 2018Date of Patent: December 25, 2018Assignee: Seiko Epson CorporationInventors: Sukehiro Ito, Naoto Hayakawa, Kazunori Hiramatsu
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Publication number: 20180272700Abstract: A liquid discharging apparatus includes a print head that discharges a liquid, a carriage that is mounted on the print head, a control signal generation circuit, a drive signal generation circuit, a first cable through which a drive signal generation control signal is transmitted to the drive signal generation circuit, a second cable through which a drive signal is transmitted to the print head, a control circuit substrate on which the control signal generation circuit is provided, and a drive circuit substrate on which the drive signal generation circuit is provided. The shortest distance between the control circuit substrate and the carriage is longer than the shortest distance between the drive circuit substrate and the carriage. The drive circuit substrate is provided at a position where a region in which the carriage moves and at least a part of the drive circuit substrate overlap each other.Type: ApplicationFiled: February 28, 2018Publication date: September 27, 2018Inventors: Sukehiro ITO, Naoto HAYAKAWA, Kazunori HIRAMATSU
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Publication number: 20180272696Abstract: A liquid discharging apparatus includes a print head that has a driving element and discharges a liquid, a drive signal generation circuit that generates the drive signal based on a drive signal generation control signal for controlling generation of the drive signal, and a drive circuit substrate on which the drive signal generation circuit is provided. The drive circuit substrate has an input connector that inputs the drive signal generation control signal into the drive circuit substrate and an output connector that outputs the drive signal from the drive circuit substrate. A distance between the input connector and the output connector is shorter than a distance between the drive signal generation circuit and the input connector. The distance between the input connector and the output connector is shorter than a distance between the drive signal generation circuit and the output connector.Type: ApplicationFiled: February 28, 2018Publication date: September 27, 2018Inventors: Sukehiro ITO, Masashi ASAKAWA, Kazunori HIRAMATSU
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Patent number: 9475316Abstract: A printer includes a base on which a medium is mounted, a liquid ejecting unit which performs printing on the medium mounted on the base, an AC servo motor which is installed in the base, and is driven when the base and the liquid ejecting unit are relatively moved, an inverter which is installed in the base and drives the AC servo motor based on power supplied from an external AC power supply, and a power supply portion which is installed in the base and supplies the power supplied from the AC power to the liquid ejecting unit supply through the power transmission cable. The power supply portion includes an AC/DC converter that converts the AC power to DC power and outputs the converted DC power to the power transmission cable.Type: GrantFiled: March 16, 2015Date of Patent: October 25, 2016Assignee: Seiko Epson CorporationInventors: Kazunori Hiramatsu, Hiroaki Sakai
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Patent number: 9457592Abstract: A printer includes a light source module including an ejecting head that ejects a UV ink onto a medium. The UV ink hardens when irradiated with a UV light ray. The light source module includes an irradiator that irradiates the UV ink with the UV light ray. The printer may include a guide shaft to/from which the light module is attachable/detachable and a driving controller that performs control of the irradiator. The light source module includes, in addition to the irradiator, a memory module that stores therein information indicating a light irradiation feature of the irradiator. The driving controller performs control of the irradiator by using the information indicating a light irradiation feature of the irradiator.Type: GrantFiled: December 14, 2015Date of Patent: October 4, 2016Assignee: Seiko Epson CorporationInventors: Kazunori Hiramatsu, Hiroaki Sakai
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Publication number: 20160096380Abstract: A printer includes a light source module including an ejecting head that ejects a UV ink onto a medium. The UV ink hardens when irradiated with a UV light ray. The light source module includes an irradiator that irradiates the UV ink with the UV light ray. The printer may include a guide shaft to/from which the light module is attachable/detachable and a driving controller that performs control of the irradiator. The light source module includes, in addition to the irradiator, a memory module that stores therein information indicating a light irradiation feature of the irradiator. The driving controller performs control of the irradiator by using the information indicating a light irradiation feature of the irradiator.Type: ApplicationFiled: December 14, 2015Publication date: April 7, 2016Inventors: Kazunori HIRAMATSU, Hiroaki Sakai
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Patent number: 9242480Abstract: A printer includes a light source module including an ejecting head that ejects a UV ink onto a medium. The UV ink hardens when irradiated with a UV light ray. The light source module includes an irradiator that irradiates the UV ink with the UV light ray. The printer may include a guide shaft to/from which the light module is attachable/detachable and a driving controller that performs control of the irradiator. The light source module includes, in addition to the irradiator, a memory module that stores therein information indicating a light irradiation feature of the irradiator. The driving controller performs control of the irradiator by using the information indicating a light irradiation feature of the irradiator.Type: GrantFiled: October 9, 2014Date of Patent: January 26, 2016Assignee: Seiko Epson CorporationInventors: Kazunori Hiramatsu, Hiroaki Sakai
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Publication number: 20150266323Abstract: A printer includes a base on which a medium is mounted, a liquid ejecting unit which performs printing on the medium mounted on the base, an AC servo motor which is installed in the base, and is driven when the base and the liquid ejecting unit are relatively moved, an inverter which is installed in the base and drives the AC servo motor based on power supplied from an external AC power supply, and a power supply portion which is installed in the base and supplies the power supplied from the AC power to the liquid ejecting unit supply through the power transmission cable. The power supply portion includes an AC/DC converter that converts the AC power to DC power and outputs the converted DC power to the power transmission cable.Type: ApplicationFiled: March 16, 2015Publication date: September 24, 2015Inventors: Kazunori HIRAMATSU, Hiroaki SAKAI
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Publication number: 20150109363Abstract: A printer includes a light source module including an ejecting head that ejects a UV ink onto a medium. The UV ink hardens when irradiated with a UV light ray. The light source module includes an irradiator that irradiates the UV ink with the UV light ray. The printer may include a guide shaft to/from which the light module is attachable/detachable and a driving controller that performs control of the irradiator. The light source module includes, in addition to the irradiator, a memory module that stores therein information indicating a light irradiation feature of the irradiator. The driving controller performs control of the irradiator by using the information indicating a light irradiation feature of the irradiator.Type: ApplicationFiled: October 9, 2014Publication date: April 23, 2015Inventors: Kazunori HIRAMATSU, Hiroaki SAKAI
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Patent number: 8300009Abstract: An electrophoretic display according to the present invention includes a first reset step for applying a first voltage to electrophoretic devices such that no image is displayed and no afterimages are present in the electrophoretic devices between a first step for displaying a first image on the electrophoretic devices and a second step for displaying a second image on the electrophoretic devices and a second reset step for applying a second voltage higher than the first voltage such that no image is displayed and no afterimage is present in the electrophoretic devices at a frequency less than that at which the first reset step is performed.Type: GrantFiled: March 1, 2010Date of Patent: October 30, 2012Assignee: Seiko Epson CorporationInventor: Kazunori Hiramatsu
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Patent number: 7876312Abstract: A writing device is provided for color electronic paper which is capable of performing full color display. The writing device includes a head unit, a head unit moving mechanism which moves the head unit in a first direction, a feeding mechanism which moves electronic paper, and a controller. The head unit includes a writing head, an LED which emits light of three primary colors, an image sensing element consisting of a CMOS sensor, and an optical system. The writing head includes an optically transparent head main portion provided with pixel electrodes, and a common electrode (counter electrode). In the controller, an arrangement of three types of microcapsules in a microcapsule layer is detected to perform electric field formation for each of the pixel electrodes based on a detection result.Type: GrantFiled: September 27, 2007Date of Patent: January 25, 2011Assignee: Seiko Epson CorporationInventors: Yoshiyuki Kodama, Kazunori Hiramatsu
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Publication number: 20100238145Abstract: An electro-optical apparatus includes a display unit including a plurality of pixels, a plurality of pixel electrodes, each of the plurality of pixel electrodes being provided for the pixel, a common electrode facing the plurality of pixel electrodes, an electro-optical layer disposed between the plurality of pixel electrodes and the common electrode, a plurality of holding capacitors, each of the plurality of holding capacitors being provided for the pixel, a capacitance line connected to the electrode of the holding capacitor, and a control unit that controls the potentials of the plurality of pixel electrodes, the common electrode, and the capacitance line.Type: ApplicationFiled: March 4, 2010Publication date: September 23, 2010Applicant: SEIKO EPSON CORPORATIONInventors: Kota MUTO, Yuko KOMATSU, Kazunori HIRAMATSU
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Publication number: 20100149161Abstract: An electrophoretic display according to the present invention includes a first reset step for applying a first voltage to electrophoretic devices such that no image is displayed and no afterimages are present in the electrophoretic devices between a first step for displaying a first image on the electrophoretic devices and a second step for displaying a second image on the electrophoretic devices and a second reset step for applying a second voltage higher than the first voltage such that no image is displayed and no afterimage is present in the electrophoretic devices at a frequency less than that at which the first reset step is performed.Type: ApplicationFiled: March 1, 2010Publication date: June 17, 2010Applicant: SEIKO EPSON CORPORATIONInventor: Kazunori HIRAMATSU
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Patent number: 7701435Abstract: An electrophoretic display according to the present invention includes a first reset step for applying a first voltage to electrophoretic devices such that no image is displayed and no afterimages are present in the electrophoretic devices between a first step for displaying a first image on the electrophoretic devices and a second step for displaying a second image on the electrophoretic devices and a second reset step for applying a second voltage higher than the first voltage such that no image is displayed and no afterimage is present in the electrophoretic devices at a frequency less than that at which the first reset step is performed.Type: GrantFiled: March 25, 2005Date of Patent: April 20, 2010Assignee: Seiko Epson CorporationInventor: Kazunori Hiramatsu