Patents by Inventor Tetsuo Tatsuda
Tetsuo Tatsuda 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: 10336066Abstract: A printer including: a first printhead and a second printhead configured to eject ink to a print medium; a conveyance mechanism configured to convey the print medium; a camera configured to photograph the print medium; a carriage configured to carry and move the first printhead, the second printhead, and the camera; and a processor configured to print a third mark by the first printhead, photograph the third mark by the camera, adjust driving the conveyance mechanism and the carriage based on a result of the photograph, print a first mark and a second mark by the first printhead and the second printhead respectively, photograph the first mark and the second mark by the camera, and based on the result of the photograph, adjust the ink ejection timing of the second printhead.Type: GrantFiled: May 8, 2018Date of Patent: July 2, 2019Assignee: Seiko Epson CorporationInventor: Tetsuo Tatsuda
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Patent number: 10341523Abstract: Provided is a printer having: a carriage configured to carry and move a printhead; a camera attached to the carriage and configured to photograph an image printed by the printhead; an adjustment mechanism configured to adjust an installation position of the camera; and a processor configured to control to move the carriage to a position of a predetermined specific mark, photograph the specific mark by the camera, and based on a photographed image of the specific mark, adjust an installation position of the camera by the adjustment mechanism.Type: GrantFiled: May 9, 2018Date of Patent: July 2, 2019Assignee: Seiko Epson CorporationInventor: Tetsuo Tatsuda
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Publication number: 20190160839Abstract: A printing apparatus includes a spectrometer that emits light to detect reflected light and outputs a signal corresponding to an intensity of the light, a white board that reflects the light, a carriage that holds the spectrometer, and a second adjustment mechanism that adjusts a posture of the spectrometer with respect to the carriage.Type: ApplicationFiled: November 28, 2018Publication date: May 30, 2019Inventor: Tetsuo TATSUDA
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Publication number: 20180343360Abstract: There is provided a printing apparatus including: an ink jet head that prints on a print medium; a camera that captures an image on the print medium; a carriage that mounts the ink jet head and the camera; and a processor that generates image data based on a captured image obtained by capturing a chart by the camera, the chart being printed on the print medium by the ink jet head, in which the processor generates at least one of image data representing an image of an image range smaller than a capturing range of the camera and image data representing an image of a resolution lower than a resolution of the captured image, for an adjustment item.Type: ApplicationFiled: May 22, 2018Publication date: November 29, 2018Applicant: SEIKO EPSON CORPORATIONInventors: Shigenori Katayama, Tetsuo Tatsuda
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Publication number: 20180332189Abstract: Provided is a printer having: a carriage configured to carry and move a printhead; a camera attached to the carriage and configured to photograph an image printed by the printhead; an adjustment mechanism configured to adjust an installation position of the camera; and a processor configured to control to move the carriage to a position of a predetermined specific mark, photograph the specific mark by the camera, and based on a photographed image of the specific mark, adjust an installation position of the camera by the adjustment mechanism.Type: ApplicationFiled: May 9, 2018Publication date: November 15, 2018Applicant: SEIKO EPSON CORPORATIONInventor: Tetsuo Tatsuda
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Publication number: 20180326721Abstract: A printer including: a first printhead and a second printhead configured to eject ink to a print medium; a conveyance mechanism configured to convey the print medium; a camera configured to photograph the print medium; a carriage configured to carry and move the first printhead, the second printhead, and the camera; and a processor configured to print a third mark by the first printhead, photograph the third mark by the camera, adjust driving the conveyance mechanism and the carriage based on a result of the photograph, print a first mark and a second mark by the first printhead and the second printhead respectively, photograph the first mark and the second mark by the camera, and based on the result of the photograph, adjust the ink ejection timing of the second printhead.Type: ApplicationFiled: May 8, 2018Publication date: November 15, 2018Applicant: SEIKO EPSON CORPORATIONInventor: Tetsuo TATSUDA
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Patent number: 10063785Abstract: An imaging device outputs imaging data captured with a predetermined exposure time, and a brightness determination unit determines whether the brightness of the imaging data is within a predetermined range. Re-imaging is performed with the exposure time changed when the brightness of the imaging data is not within the predetermined range. The re-imaging is performed with the exposure time lengthened when the brightness of the imaging data is less than a determination value, and the re-imaging is performed with the exposure time shortened when the brightness of the imaging data is saturated.Type: GrantFiled: August 14, 2015Date of Patent: August 28, 2018Assignee: Seiko Epson CorporationInventors: Danjun Zhao, Tetsuo Tatsuda
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Publication number: 20180241888Abstract: A measuring apparatus includes a carriage on which an imaging control section that controls imaging of an object is mounted, a movement control section that moves the carriage relative to the object, an image processing section that acquires image information, a first signal line that connects the imaging control section and the movement control section to each other, and a second signal line that connects the imaging control section and the image processing section to each other. A control signal is transmitted over the first signal line, and a data signal is transmitted over the second signal line.Type: ApplicationFiled: February 20, 2018Publication date: August 23, 2018Applicant: SEIKO EPSON CORPORATIONInventors: Danjun Zhao, Tetsuo Tatsuda
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Patent number: 10029491Abstract: A measuring device includes an optical device which includes a window on which light is incident, a shutter which includes a white reference surface on an optical device side and is configured to block the window, a first moving mechanism which moves the optical device in a direction, and a second moving mechanism which relatively moves the window and the shutter between a first position at which the window is blocked by the white reference surface and a second position at which light is incident on the window.Type: GrantFiled: March 22, 2017Date of Patent: July 24, 2018Assignee: Seiko Epson CorporationInventor: Tetsuo Tatsuda
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Patent number: 9983120Abstract: An imaging section that detects the amount of light separated by a wavelength tunable interference filter to acquire a spectroscopic image (imaging device and light amount acquisition section) detects the amount of light successively separated for three wavelengths to acquire spectroscopic images for producing a combined image. A display controller causes a display section to display a combined image based on the spectroscopic images for producing the combined image. A specified position detection section identifies based on user's operation a specified position where a colorimetry result is to be outputted. The imaging section detects the amount of light successively separated for a plurality of wavelengths by the wavelength tunable interference filter to acquire spectroscopic images for colorimetry corresponding to the plurality of wavelengths. A colorimetry section measures the color in the specified position by using the amount of light obtained from each of the spectroscopic images for colorimetry.Type: GrantFiled: January 31, 2014Date of Patent: May 29, 2018Assignee: SEIKO EPSON CORPORATIONInventor: Tetsuo Tatsuda
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Publication number: 20170334220Abstract: A measuring device includes an optical device which includes a window on which light is incident, a shutter which includes a white reference surface on an optical device side and is configured to block the window, a first moving mechanism which moves the optical device in a direction, and a second moving mechanism which relatively moves the window and the shutter between a first position at which the window is blocked by the white reference surface and a second position at which light is incident on the window.Type: ApplicationFiled: March 22, 2017Publication date: November 23, 2017Inventor: Tetsuo TATSUDA
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Patent number: 9702760Abstract: A spectrometry apparatus includes a wavelength variable interference filter emitting light of various predetermined wavelengths; a roll shutter imaging element having pixels accumulating electric charges when exposed to light, and forming one frame by photodetection for each pixel block including pixels with a predetermined time delay for each pixel block, in which the imaging element accumulates electric charges in a photodetection period, and outputs a detection signal in response to the accumulated electric charges in a non-photodetection period; and a spectroscopic controller controlling the wavelength change driving of the emitted light of the wavelength variable interference filter. For the one frame, the spectroscopic controller starts the wavelength change driving at an end timing of the photodetection period of a final pixel block for which the photodetection process is performed at the end.Type: GrantFiled: December 23, 2014Date of Patent: July 11, 2017Assignee: Seiko Epson CorporationInventors: Danjun Zhao, Tetsuo Tatsuda, Shinichi Arazaki
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Publication number: 20170070648Abstract: A colorimetry method includes: acquiring spectroscopic measurement results for a colorimetry range in an image; and acquiring colorimetry results for a first color based on the spectroscopic measurement results for the first color from a plurality of colors in a case where the plurality of colors is included in the colorimetry range.Type: ApplicationFiled: August 29, 2016Publication date: March 9, 2017Inventor: Tetsuo TATSUDA
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Patent number: 9459147Abstract: A spectrometry device includes a wavelength variable interference filter; a filter driving unit which sets a wavelength of light which is output from the wavelength variable interference filter, and outputs at least red light and green light among three color light beams of predetermined red light in a red color wavelength range, predetermined green light in a green light wavelength range, and predetermined blue light in a blue light wavelength range in a predetermined order; an imaging element which receives at least red light and green light which are output from the wavelength variable interference filter, and obtains at least a red image and a green image among three color images; and an image generation unit which generates a composite image using the latest color images including at least the obtained red image and green image.Type: GrantFiled: January 28, 2015Date of Patent: October 4, 2016Assignee: Seiko Epson CorporationInventors: Tetsuo Tatsuda, Shinichi Arazaki
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Publication number: 20160116336Abstract: Provided is an optical module including a wavelength-selective interference filter capable of selecting light of a predetermined wavelength from incident light and changing the wavelength of emitted light, a rolling shutter capturing element in which a light receiving process including a light exposing period for accumulating charges as well as a light blocking period for outputting a detection signal corresponding to the charges accumulated during the light exposing period is sequentially performed in a delayed manner per pixel row configured of a plurality of pixels, and a filter drive unit controlling a wavelength changing drive of the wavelength-selective interference filter.Type: ApplicationFiled: October 27, 2015Publication date: April 28, 2016Inventors: Danjun ZHAO, Tetsuo TATSUDA
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Publication number: 20160057330Abstract: An imaging device outputs imaging data captured with a predetermined exposure time, and a brightness determination unit determines whether the brightness of the imaging data is within a predetermined range. Re-imaging is performed with the exposure time changed when the brightness of the imaging data is not within the predetermined range. The re-imaging is performed with the exposure time lengthened when the brightness of the imaging data is less than a determination value, and the re-imaging is performed with the exposure time shortened when the brightness of the imaging data is saturated.Type: ApplicationFiled: August 14, 2015Publication date: February 25, 2016Inventors: Danjun ZHAO, Tetsuo TATSUDA
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Patent number: 9182279Abstract: An optical module includes a wavelength variable interference filter that selects light of a predetermined wavelength from incident light, and can change the wavelength of emitted light; a global shutter imaging element that accumulates electric charges while being exposed to the emitted light, and outputs a detection signal in response to the accumulated electric charges; an imaging element controller for setting a photodetection period during which the electric charges are accumulated in the imaging element, and a standby period during which the electric charges accumulated in the imaging elements are reset; and a spectroscopic controller for controlling the wavelength change driving of the emitted light. The imaging element controller sets the duration of the standby period to a minimum drive time for changing the wavelength or greater. The spectroscopic controller starts the wavelength change driving at the start of the standby period.Type: GrantFiled: December 23, 2014Date of Patent: November 10, 2015Assignee: Seiko Epson CorporationInventors: Danjun Zhao, Tetsuo Tatsuda, Shinichi Arazaki
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Publication number: 20150316416Abstract: An optical module includes a variable wavelength interference filter that has a pair of reflection films facing one another, and that emits light with a wavelength according to the gap dimensions of the pair of reflection films; an incident side optical system as a negative power lens group that guides an incident luminous flux to the variable wavelength interference filter; and a light guiding optical system as a positive power lens group on which a luminous flux passing through the variable wavelength interference filter is incident, in which the incident side optical system guides the incident luminous flux to the variable wavelength interference filter as a luminous flux in which the principal ray is parallel with respect to the optical axis (central optical axis) orthogonal to the pair of reflection films and that is scattered with respect to the principal ray, and the light guiding optical system makes the luminous flux scattered with respect to the principal ray a parallel luminous flux.Type: ApplicationFiled: April 30, 2015Publication date: November 5, 2015Inventors: Tatsuaki FUNAMOTO, Tetsuo TATSUDA, Akira SANO
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Publication number: 20150211927Abstract: A spectrometry device includes a wavelength variable interference filter; a filter driving unit which sets a wavelength of light which is output from the wavelength variable interference filter, and outputs at least red light and green light among three color light beams of predetermined red light in a red color wavelength range, predetermined green light in a green light wavelength range, and predetermined blue light in a blue light wavelength range in a predetermined order; an imaging element which receives at least red light and green light which are output from the wavelength variable interference filter, and obtains at least a red image and a green image among three color images; and an image generation unit which generates a composite image using the latest color images including at least the obtained red image and green image.Type: ApplicationFiled: January 28, 2015Publication date: July 30, 2015Inventors: Tetsuo TATSUDA, Shinichi ARAZAKI
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Publication number: 20150185074Abstract: An optical module includes a wavelength variable interference filter that selects light of a predetermined wavelength from incident light, and can change the wavelength of emitted light; a global shutter imaging element that accumulates electric charges while being exposed to the emitted light, and outputs a detection signal in response to the accumulated electric charges; an imaging element controller for setting a photodetection period during which the electric charges are accumulated in the imaging element, and a standby period during which the electric charges accumulated in the imaging elements are reset; and a spectroscopic controller for controlling the wavelength change driving of the emitted light. The imaging element controller sets the duration of the standby period to a minimum drive time for changing the wavelength or greater. The spectroscopic controller starts the wavelength change driving at the start of the standby period.Type: ApplicationFiled: December 23, 2014Publication date: July 2, 2015Inventors: Danjun ZHAO, Tetsuo TATSUDA, Shinichi ARAZAKI