Patents by Inventor Yuichiro Tomishima
Yuichiro Tomishima 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: 20220187751Abstract: An imaging system includes a conveyor device to convey a sheet material along a conveyance path, a deformation tolerance portion located along the conveyance path, and a measurement device located in the deformation tolerance portion. The deformation tolerance portion includes a space to accommodate a bending of the conveyed sheet material. The measurement device measures a bending amount of the sheet material.Type: ApplicationFiled: August 25, 2020Publication date: June 16, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Yuichiro Tomishima, Takahiro Yoshikawa, Tomonori Ueno
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Patent number: 11314190Abstract: An imaging system includes a roller that conveys a printing medium, a medium sensor that detects a medium property of the printing medium conveyed by the roller, and a controller that adjusts a conveyance speed of the printing medium by the roller based on the medium property detected by the medium sensor.Type: GrantFiled: July 1, 2019Date of Patent: April 26, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: Yuichiro Tomishima, Hirokazu Yukawa, Sachiyo Yamada
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Patent number: 11268904Abstract: An image forming apparatus and method are disclosed. A detection light is radiated to a medium. An amount of transmitted light, an amount of regular reflected light, and an amount of diffuse reflected light are detected. A reflected-light-amount-equivalent value is obtained when the amount of regular reflected light is standardized based on the amount of diffuse reflected light. A glossy sheet-thickness coefficient is calculated by adding the reflected-light-amount-equivalent value to a transmitted-light-amount-equivalent value that is based on the amount of transmitted light. The weight property of the medium is determined, based on the glossy sheet-thickness coefficient, wherein the weight property comprises a basis weight or a thickness of the medium.Type: GrantFiled: October 11, 2018Date of Patent: March 8, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventor: Yuichiro Tomishima
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Publication number: 20210239609Abstract: A water content sensor for a recording medium includes a single light emitting part, a wavelength separation device and a detector device. The single light emitting part emits infrared light in a wavelength range including an absorption wavelength of water along one incident light path toward the recording medium. The wavelength separation device separates infrared light, either reflected from or transmitted through the recording medium, into a first light in a first wavelength range including the absorption wavelength of water and a second light in a second wavelength range excluding the first wavelength range. The detector device receives the first light in the first wavelength range and the second light in the second wavelength range, and generates a first output corresponding to an intensity of the first light received and a second output corresponding to an intensity of the second light received, respectively.Type: ApplicationFiled: July 26, 2019Publication date: August 5, 2021Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Sachiyo YAMADA, Yuichiro TOMISHIMA, Hirokazu YUKAWA
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Publication number: 20210223725Abstract: An imaging system includes a roller that conveys a printing medium, a medium sensor that detects a medium property of the printing medium conveyed by the roller, and a controller that adjusts a conveyance speed of the printing medium by the roller based on the medium property detected by the medium sensor.Type: ApplicationFiled: July 1, 2019Publication date: July 22, 2021Inventors: Yuichiro TOMISHIMA, Hirokazu YUKAWA, Sachiyo YAMADA
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Patent number: 10948863Abstract: An image forming apparatus including an image forming device, a sensor, and a processor. The image forming device is to form an image on recording medium. The sensor is to irradiate light to the recording medium and detect an amount of light transmitted through the recording medium and an amount of light reflected from the recording medium, resulting in a control of a printing operation of the image forming device based the amount of light transmitted through the printing medium and the amount of light reflected from the printing medium.Type: GrantFiled: April 24, 2020Date of Patent: March 16, 2021Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventor: Yuichiro Tomishima
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Publication number: 20200264103Abstract: An image forming apparatus and method are disclosed. A detection light is radiated to a medium. An amount of transmitted light, an amount of regular reflected light, and an amount of diffuse reflected light are detected. A reflected-light-amount-equivalent value is obtained when the amount of regular reflected light is standardized based on the amount of diffuse reflected light. A glossy sheet-thickness coefficient is calculated by adding the reflected-light-amount-equivalent value to a transmitted-light-amount-equivalent value that is based on the amount of transmitted light. The weight property of the medium is determined, based on the glossy sheet-thickness coefficient, wherein the weight property comprises a basis weight or a thickness of the medium.Type: ApplicationFiled: October 11, 2018Publication date: August 20, 2020Inventor: Yuichiro TOMISHIMA
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Publication number: 20200249609Abstract: An image forming apparatus including an image forming device, a sensor, and a processor. The image forming device is to form an image on recording medium. The sensor is to irradiate light to the recording medium and detect an amount of light transmitted through the recording medium and an amount of light reflected from the recording medium, resulting in a control of a printing operation of the image forming device based the amount of light transmitted through the printing medium and the amount of light reflected from the printing medium.Type: ApplicationFiled: April 24, 2020Publication date: August 6, 2020Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventor: Yuichiro TOMISHIMA
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Patent number: 10705461Abstract: An apparatus includes an image former and an induction heating fusing device. The image former forms an image. The induction heating fusing device fuses the image formed by the image former onto paper. Whether the induction heating fusing device has an error is determined by limiting a current applied to a resonance circuit included in the induction heating fusing device to less than a certain level.Type: GrantFiled: January 30, 2019Date of Patent: July 7, 2020Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventor: Yuichiro Tomishima
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Patent number: 10671007Abstract: An image forming apparatus including an image forming device, a sensor, and a processor. The image forming device is to form an image on recording medium. The sensor is to irradiate light to the recording medium and detect an amount of light transmitted through the recording medium and an amount of light reflected from the recording medium at each of a plurality of positions. The processor is to determine a thickness of the recording medium based on the amount of light transmitted through the recording medium and the amount of light reflected from the recording medium at each of the plurality of positions. The processor is to then control the image forming device on the basis of the determined thickness.Type: GrantFiled: April 26, 2019Date of Patent: June 2, 2020Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventor: Yuichiro Tomishima
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Publication number: 20190250548Abstract: An image forming apparatus including an image forming device, a sensor, and a processor. The image forming device is to form an image on recording medium. The sensor is to irradiate light to the recording medium and detect an amount of light transmitted through the recording medium and an amount of light reflected from the recording medium at each of a plurality of positions. The processor is to determine a thickness of the recording medium based on the amount of light transmitted through the recording medium and the amount of light reflected from the recording medium at each of the plurality of positions. The processor is to then control the image forming device on the basis of the determined thickness.Type: ApplicationFiled: April 26, 2019Publication date: August 15, 2019Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventor: Yuichiro Tomishima
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Publication number: 20190163104Abstract: An apparatus includes an image former and an induction heating fusing device. The image former forms an image. The induction heating fusing device fuses the image formed by the image former onto paper. Whether the induction heating fusing device has an error is determined by limiting a current applied to a resonance circuit included in the induction heating fusing device to less than a certain level.Type: ApplicationFiled: January 30, 2019Publication date: May 30, 2019Applicant: HP Printing Korea Co., LTD.Inventor: Yuichiro TOMISHIMA
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Patent number: 10234802Abstract: Provided are an apparatus and a method of detecting an error in the apparatus. The apparatus includes an image former and an induction heating fusing device. The image former forms an image. The induction heating fusing device fuses the image formed by the image former onto paper. Whether the apparatus has an error is determined by limiting a current applied to a resonance circuit included in the induction heating fusing device to less than a certain level.Type: GrantFiled: October 23, 2015Date of Patent: March 19, 2019Assignee: HP PRINTING KOREA CO., LTD.Inventor: Yuichiro Tomishima
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Publication number: 20170227902Abstract: Provided are an apparatus and a method of detecting an error in the apparatus. The apparatus includes an image former and an induction heating fusing device. The image former forms an image. The induction heating fusing device fuses the image formed by the image former onto paper. Whether the apparatus has an error is determined by limiting a current applied to a resonance circuit included in the induction heating fusing device to less than a certain level.Type: ApplicationFiled: October 23, 2015Publication date: August 10, 2017Applicant: S-Printing Solution Co., Ltd.Inventor: Yuichiro TOMISHIMA
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Patent number: 9723165Abstract: An image forming apparatus capable of preventing misdetermination of a type of printing paper includes a transmitted light receiver, a specularly reflected light receiver, and a diffusively reflected light receiver, which constitute a sensor, and an output determiner that determines whether data output by the plurality of light receivers is normal. The image forming apparatus determines the type of printing paper and an abnormality of the printing paper from the determination by the output determiner.Type: GrantFiled: January 10, 2017Date of Patent: August 1, 2017Assignee: S-PRINTING SOLUTION CO., LTD.Inventor: Yuichiro Tomishima
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Publication number: 20170214812Abstract: An image forming apparatus capable of preventing misdetermination of a type of printing paper includes a transmitted light receiver, a specularly reflected light receiver, and a diffusively reflected light receiver, which constitute a sensor, and an output determiner that determines whether data output by the plurality of light receivers is normal. The image forming apparatus determines the type of printing paper and an abnormality of the printing paper from the determination by the output determiner.Type: ApplicationFiled: January 10, 2017Publication date: July 27, 2017Applicant: S-PRINTING SOLUTION CO., LTD.Inventor: Yuichiro TOMISHIMA
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Patent number: 9046848Abstract: An image forming apparatus which obtains rotational variance factors of an intermediate transfer belt for each of plurality of colors based on locations with respect to second pattern image being obtained by a location calculation unit, corrects the location obtained with respect to a first pattern image based on the rotational variance factor obtained with respect to the color of the first pattern image, obtains an offset of another color with respect to a reference color based on the location after correction, and performs color registration based on the obtained offset to reduce the offset.Type: GrantFiled: December 6, 2012Date of Patent: June 2, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventor: Yuichiro Tomishima
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Patent number: 7411886Abstract: A device for recording information on an optical disc so as to improve the recording quality of the information when a recording operation has just started. The recording device includes a luminous element radiating a light for recording information on the optical disc; a radiation intensity controller constantly controlling an intensity of radiation of the light radiated by the luminous element; a constant outputting unit providing a constant energy to the luminous element; a selector selectively selecting one of the outputs of the intensity of radiation controller and the constant outputting unit; wherein, the selector selects the output from the constant outputting unit during a predetermined duration from a starting time of recording the information on the optical disc, and selects the output from the intensity of radiation controller afterward.Type: GrantFiled: November 22, 2005Date of Patent: August 12, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Harutaka Sekiya, Yuichiro Tomishima
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Publication number: 20070211594Abstract: A method of compensating for a write power of a laser beam in an optical disk apparatus may include determining whether a predetermined write condition is satisfied, stopping a write operation if the predetermined write condition is not satisfied, measuring a write characteristic of a recording area right before stopping the write operation, and compensating for the write power for recording the information based on the measured write characteristic. The optimum write power of a light source may be compensated for when a current write length exceeds a predetermined write length from a write start location, when a current temperature in a driver is outside a predetermined temperature range, and/or when a reflected light intensity from an optical disk in a write operation is outside a predetermined light intensity range.Type: ApplicationFiled: December 22, 2006Publication date: September 13, 2007Inventor: Yuichiro Tomishima
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Patent number: 7057989Abstract: A device for recording information on an optical disc so as to improve the recording quality of the information when a recording operation has just started. The recording device includes a luminous element radiating a light for recording information on the optical disc; a radiation intensity controller constantly controlling an intensity of radiation of the light radiated by the luminous element; a constant outputting unit providing a constant energy to the luminous element; a selector selectively selecting one of the outputs of the intensity of radiation controller and the constant outputting unit; wherein, the selector selects the output from the constant outputting unit during a predetermined duration from a starting time of recording the information on the optical disc, and selects the output from the intensity of radiation controller afterward.Type: GrantFiled: June 28, 2004Date of Patent: June 6, 2006Assignee: Samsung Electronics Co., Ltd.Inventors: Harutaka Sekiya, Yuichiro Tomishima