Patents by Inventor Takahiro NETSU
Takahiro NETSU 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: 11801686Abstract: A printer includes an ink tank; a print head performing printing by using ink in the ink tank; a light source irradiating an inside of the ink tank with light; a sensor detecting light of a plurality of colors incident from the ink tank during a period in which the light source emits light; and a processing section estimating an ink type of the ink in the ink tank based on an output of the sensor at a position corresponding to a meniscus portion of the ink.Type: GrantFiled: March 15, 2021Date of Patent: October 31, 2023Assignee: Seiko Epson CorporationInventors: Takahiro Netsu, Takuma Usuda
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Patent number: 11504975Abstract: A printer includes an ink tank, a print head performing printing by using ink in the ink tank; a light source irradiating an inside of the ink tank with light; a sensor detecting light incident from the ink tank during a period in which the light source emits light; and a background plate facing the light source and the sensor in the ink tank.Type: GrantFiled: March 15, 2021Date of Patent: November 22, 2022Assignee: Seiko Epson CorporationInventors: Takahiro Netsu, Takuma Usuda
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Patent number: 11472193Abstract: A printer includes an ink tank, a print head performing printing by using ink in the ink tank; a light source irradiating an inside of the ink tank with light; a sensor detecting light incident from the ink tank during a period in which the light source emits light; and a processing section detecting an amount of ink in the ink tank based on an output of the sensor. The light source is turned on by an amount of light based on a result of the sensor detecting light reflected from an area where the ink does not exist.Type: GrantFiled: March 15, 2021Date of Patent: October 18, 2022Assignee: Seiko Epson CorporationInventors: Takahiro Netsu, Takuma Usuda
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Patent number: 11345161Abstract: A printer includes an ink tank, a print head that performs printing using ink IK in the ink tank, a light source that emits light into the ink tank, a sensor that detects first light of a first wavelength band and second light of a second wavelength band incident from an ink tank side, in a period during which the light source emits light, and a processing section. The processing section determines the ink type of the ink in the ink tank based on a first light amount of the first light and a second light amount of the second light at a position where the ink exists.Type: GrantFiled: August 18, 2020Date of Patent: May 31, 2022Assignee: Seiko Epson CorporationInventors: Takuma Usuda, Takahiro Netsu
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Patent number: 11325393Abstract: A printer includes an ink tank, a print head that performs printing by using ink in the ink tank, a light source that emits light into the ink tank, a sensor that detects light incident from an ink tank side in a period during which the light source emits light and outputs pixel data, and a processing section that determines an ink amount based on an output of the sensor. A pitch of a plurality of lenses is k times a pixel pitch of the sensor, k being an integer of 2 or more, and the processing section detects the ink amount based on a sum of outputs of k continuous pixels.Type: GrantFiled: August 18, 2020Date of Patent: May 10, 2022Assignee: Seiko Epson CorporationInventors: Takahiro Netsu, Takuma Usuda
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Patent number: 11325392Abstract: A printer includes an ink tank, a print head that performs printing by using ink in the ink tank, a light source that emits light into the ink tank, a sensor that outputs pixel data by detecting light incident from an ink tank side in a period during which the light source emits light, and a processing section that determines an ink amount by an output of the sensor. The processing section designates a reading area for the sensor, and determines an ink amount based on pixel data of the reading area output from the sensor.Type: GrantFiled: August 18, 2020Date of Patent: May 10, 2022Assignee: Seiko Epson CorporationInventors: Takahiro Netsu, Takuma Usuda, Kei Nagaoka
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Patent number: 11273649Abstract: A printer includes an ink tank, a print head that performs printing by using ink in the ink tank, a light source that emits light into the ink tank, a sensor that outputs pixel data by detecting light incident from an ink tank side in a period during which the light source emits light, and a processing section that determines an ink amount by an output of the sensor. The processing section determines an ink amount based on low resolution pixel data output from the sensor in a first reading area and high resolution pixel data output from the sensor in a second reading area other than the first reading area.Type: GrantFiled: August 18, 2020Date of Patent: March 15, 2022Assignee: Seiko Epson CorporationInventors: Takahiro Netsu, Takuma Usuda, Kei Nagaoka
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Patent number: 11130347Abstract: Provided is a printer including an ink tank, a print head performing printing by using ink in the ink tank, a light source provided at the substrate and irradiating the ink tank with light from a side of the ink tank, a photoelectric conversion device provided at the substrate and detecting light incident from the ink tank in a period during which the light source emits light, and a processing unit detecting an amount of ink based on an output of the photoelectric conversion device.Type: GrantFiled: February 10, 2020Date of Patent: September 28, 2021Assignee: Seiko Epson CorporationInventor: Takahiro Netsu
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Publication number: 20210291543Abstract: A printer includes an ink tank, a print head performing printing by using ink in the ink tank; a light source irradiating an inside of the ink tank with light; a sensor detecting light incident from the ink tank during a period in which the light source emits light; and a background plate facing the light source and the sensor in the ink tank.Type: ApplicationFiled: March 15, 2021Publication date: September 23, 2021Inventors: Takahiro NETSU, Takuma USUDA
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Publication number: 20210291544Abstract: A printer includes an ink tank, a print head performing printing by using ink in the ink tank; a light source irradiating an inside of the ink tank with light; a sensor detecting light incident from the ink tank during a period in which the light source emits light; and a processing section detecting an amount of ink in the ink tank based on an output of the sensor. The light source is turned on by an amount of light based on a result of the sensor detecting light reflected from an area where the ink does not exist.Type: ApplicationFiled: March 15, 2021Publication date: September 23, 2021Inventors: Takahiro NETSU, Takuma USUDA
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Publication number: 20210291549Abstract: A printer includes an ink tank; a print head performing printing by using ink in the ink tank; a light source irradiating an inside of the ink tank with light; a sensor detecting light of a plurality of colors incident from the ink tank during a period in which the light source emits light; and a processing section estimating an ink type of the ink in the ink tank based on an output of the sensor at a position corresponding to a meniscus portion of the ink.Type: ApplicationFiled: March 15, 2021Publication date: September 23, 2021Inventors: Takahiro NETSU, Takuma USUDA
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Patent number: 11104149Abstract: Provided is an electronic apparatus including an image reading unit that reads a document by using a first sensor module having m linear image sensor chips, an ink tank, a print head, and a second sensor module having n (n<m) linear image sensor chips and detecting light incident from the ink tank, and a processing unit that detects an amount of ink in the ink tank based on an output of the second sensor module.Type: GrantFiled: February 10, 2020Date of Patent: August 31, 2021Assignee: Seiko Epson CorporationInventor: Takahiro Netsu
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Patent number: 11104148Abstract: Provided is a printer including an ink tank, a print head, a light source irradiating the ink tank with infrared light, a photoelectric conversion device detecting light incident from the ink tank in a period during which the light source emits light, a processing unit detecting an amount of ink based on an output of the photoelectric conversion device, and a window portion for visually recognizing ink.Type: GrantFiled: February 10, 2020Date of Patent: August 31, 2021Assignee: Seiko Epson CorporationInventors: Takahiro Netsu, Toshifumi Sakai
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Patent number: 11084296Abstract: Provided is a production method of a printer that detects an amount of ink in an ink tank by using a light source and a photoelectric conversion device, the method including a first step of irradiating the ink tank with light by the light source in a state where the ink tank is not filled with ink to detect light from the ink tank by using the photoelectric conversion device, and a second step of storing a first correction parameter of an output of the photoelectric conversion device in a non-volatile storage unit of the printer based on the output of the photoelectric conversion device in the first step.Type: GrantFiled: February 10, 2020Date of Patent: August 10, 2021Assignee: Seiko Epson CorporationInventor: Takahiro Netsu
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Patent number: 11046086Abstract: Provided is a printer including an ink tank, a print head, a light source that irradiates the ink tank with light, a photoelectric conversion device that detects light incident from the ink tank, and a processing unit. The processing unit detects an amount of ink in the ink tank based on a lowest position among the positions where a light amount detected by the photoelectric conversion device satisfies a given condition.Type: GrantFiled: February 10, 2020Date of Patent: June 29, 2021Assignee: Seiko Epson CorporationInventor: Takahiro Netsu
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Patent number: 11046081Abstract: Provided is a printer including an ink tank, a print head performing printing by using ink in the ink tank, a light source irradiating the ink tank with light, a photoelectric conversion device detecting light incident from the ink tank in a period during which the light source emits light, and a processing unit determining ink characteristics based on characteristics of a light amount detected by the photoelectric conversion device.Type: GrantFiled: February 10, 2020Date of Patent: June 29, 2021Assignee: Seiko Epson CorporationInventor: Takahiro Netsu
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Patent number: 11046085Abstract: Provided is a printer including an ink tank provided with, at a side surface, an optical separator for separating light in a vertical direction, a print head performing printing by using ink in the ink tank, a photoelectric conversion device detecting light incident from the ink tank after passing through the optical separator, and a processing unit detecting an amount of ink in the ink tank based on an output of the photoelectric conversion device.Type: GrantFiled: February 10, 2020Date of Patent: June 29, 2021Assignee: Seiko Epson CorporationInventor: Takahiro Netsu
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Publication number: 20210053358Abstract: A printer includes an ink tank, a print head that performs printing by using ink in the ink tank, a light source that emits light into the ink tank, a sensor that detects light incident from an ink tank side in a period during which the light source emits light and outputs pixel data, and a processing section that determines an ink amount based on an output of the sensor. A pitch of a plurality of lenses is k times a pixel pitch of the sensor, k being an integer of 2 or more, and the processing section detects the ink amount based on a sum of outputs of k continuous pixels.Type: ApplicationFiled: August 18, 2020Publication date: February 25, 2021Inventors: Takahiro NETSU, Takuma USUDA
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Publication number: 20210053356Abstract: A printer includes an ink tank, a print head that performs printing by using ink in the ink tank, a light source that emits light into the ink tank, a sensor that outputs pixel data by detecting light incident from an ink tank side in a period during which the light source emits light, and a processing section that determines an ink amount by an output of the sensor. The processing section designates a reading area for the sensor, and determines an ink amount based on pixel data of the reading area output from the sensor.Type: ApplicationFiled: August 18, 2020Publication date: February 25, 2021Inventors: Takahiro NETSU, Takuma USUDA, Kei NAGAOKA
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Publication number: 20210053355Abstract: A printer includes an ink tank, a print head that performs printing using ink IK in the ink tank, a light source that emits light into the ink tank, a sensor that detects first light of a first wavelength band and second light of a second wavelength band incident from an ink tank side, in a period during which the light source emits light, and a processing section. The processing section determines the ink type of the ink in the ink tank based on a first light amount of the first light and a second light amount of the second light at a position where the ink exists.Type: ApplicationFiled: August 18, 2020Publication date: February 25, 2021Inventors: Takuma Usuda, Takahiro Netsu