Patents by Inventor Koji Shida
Koji Shida 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: 20240164994Abstract: Ion sustained-release composite particles include ion sustained-release glass and a polymer compound, wherein the polymer compound includes a homo polymer or a copolymer of a (meth)acrylate compound having a hydroxyl group.Type: ApplicationFiled: January 21, 2022Publication date: May 23, 2024Inventors: Yasuyuki NAGANO, Enzo SHIDA, Koji TANAKA, Daizaburo MORI
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Patent number: 10600201Abstract: A method of determining a position of a focus lens includes the steps of detecting luminance values corresponding to a plurality of imaging elements which detect light via a focus lens while moving the focus lens, calculating a contrast value for evaluation of a focused state of a subject image on the basis of the detected luminance values corresponding to the imaging elements, specifying the largest luminance value in the detected luminance values corresponding to the imaging elements, specifying a range in which the largest luminance value is not less than a value which is determined in advance in a moving range of the focus lens and determining the position of the focus lens on the basis of the contrast value in the specified range of the position of the focus lens.Type: GrantFiled: December 1, 2017Date of Patent: March 24, 2020Assignee: RENESAS ELECTRONICS CORPORATIONInventors: Shinya Tanaka, Koji Shida
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Publication number: 20180220093Abstract: According to one exemplary embodiment, an image sensor includes a first chip A and a second chip B configured to transmit and receive signals to and from the first chip through a micro-bump, the first chip being stacked on top of the second chip, wherein on the first chip, pixel circuits 31-3n are arranged in a lattice structure, each of the pixel circuits including a photoelectric conversion element 41, a transfer transistor 42, a reset transistor 43, and an amplification transistor 44, and on the second chip, at least an input stage circuit COMP of an analog-to-digital converter circuit configured to convert a dark level signal and an imaging signal output from the pixel circuits 31-3n into a digital value is formed, and the number of input stage circuits COMP is at least two times the number of lines of the pixel circuits.Type: ApplicationFiled: December 28, 2017Publication date: August 2, 2018Inventors: Fumihide Murao, Koji Shida
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Publication number: 20180182125Abstract: A method of determining a position of a focus lens includes the steps of detecting luminance values corresponding to a plurality of imaging elements which detect light via a focus lens while moving the focus lens, calculating a contrast value for evaluation of a focused state of a subject image on the basis of the detected luminance values corresponding to the imaging elements, specifying the largest luminance value in the detected luminance values corresponding to the imaging elements, specifying a range in which the largest luminance value is not less than a value which is determined in advance in a moving range of the focus lens and determining the position of the focus lens on the basis of the contrast value in the specified range of the position of the focus lens.Type: ApplicationFiled: December 1, 2017Publication date: June 28, 2018Applicant: Renesas Electronics CorporationInventors: Shinya TANAKA, Koji SHIDA
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Patent number: 9936152Abstract: According to one aspect of the present invention, an image sensor and a sensor module have a configuration in which the image sensor outputs first brightness information representing brightness information of first image information obtained with a first exposure time and second brightness information representing brightness information of second image information obtained with a second exposure time separately from a composite image obtained by synthesizing the first image information and the second image information, updates the first and second exposure times based on an exposure time set value externally generated based on the first brightness information and the second brightness information, and changes a synthesis set value used for synthesis of the composite image based on the exposure time set value externally generated based on the first brightness information and the second brightness information.Type: GrantFiled: May 3, 2016Date of Patent: April 3, 2018Assignee: Renesas Electronics CorporationInventors: Koji Shida, Hideki Wakisaka, Katsumi Dosaka
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Publication number: 20180084189Abstract: In an existing camera, a control program of a whole camera including a control program for controlling a lens group and a sensor needs to be entirely created by a camera manufacturer, which increases the number of man-hours of product development. According to one embodiment, in a lens module system, a lens module includes a lens group, an image sensor and a module control unit. Image feature information representing a feature of image information taken is output from the image sensor, and the module control unit controls a component of the lens group based on the image feature information.Type: ApplicationFiled: November 27, 2017Publication date: March 22, 2018Inventors: Koji SHIDA, Shinya TANAKA
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Publication number: 20170026594Abstract: According to one aspect of the present invention, an image sensor and a sensor module have a configuration in which the image sensor outputs first brightness information representing brightness information of first image information obtained with a first exposure time and second brightness information representing brightness information of second image information obtained with a second exposure time separately from a composite image obtained by synthesizing the first image information and the second image information, updates the first and second exposure times based on an exposure time set value externally generated based on the first brightness information and the second brightness information, and changes a synthesis set value used for synthesis of the composite image based on the exposure time set value externally generated based on the first brightness information and the second brightness information.Type: ApplicationFiled: May 3, 2016Publication date: January 26, 2017Inventors: Koji SHIDA, Hideki WAKISAKA, Katsumi DOSAKA
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Publication number: 20160241773Abstract: In an existing camera, a control program of a whole camera including a control program for controlling a lens group and a sensor needs to be entirely created by a camera manufacturer, which increases the number of man-hours of product development. According to one embodiment, in a lens module system, a lens module includes a lens group, an image sensor and a module control unit. Image feature information representing a feature of image information taken is output from the image sensor, and the module control unit controls a component of the lens group based on the image feature information.Type: ApplicationFiled: December 10, 2015Publication date: August 18, 2016Inventors: Koji SHIDA, Shinya TANAKA
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Patent number: 9369653Abstract: There is a need to provide a solid-state imaging apparatus capable of highly accurately analog-to-digital converting an analog voltage output from a pixel circuit. The solid-state imaging apparatus supplies a counter code to an integral A/D converter. The counter code CD includes 3-phase clock signals and gray signals. The clock signals each have a cycle equal to specified cycle multiplied by 8 and allow phases to shift from each other by specified cycle. The gray signals linearly increase count values at a cycle equal to specified cycle multiplied by 4. The counter code reverses only the logical level of a signal when a count value changes. A count value error can be limited to a minimum.Type: GrantFiled: January 4, 2016Date of Patent: June 14, 2016Assignee: RENESAS ELECTRONICS CORPORATIONInventors: Shunsuke Okura, Koji Shida, Hiroshi Kato
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Publication number: 20160119567Abstract: There is a need to provide a solid-state imaging apparatus capable of highly accurately analog-to-digital converting an analog voltage output from a pixel circuit. The solid-state imaging apparatus supplies a counter code to an integral A/D converter. The counter code CD includes 3-phase clock signals and gray signals. The clock signals each have a cycle equal to specified cycle multiplied by 8 and allow phases to shift from each other by specified cycle. The gray signals linearly increase count values at a cycle equal to specified cycle multiplied by 4. The counter code reverses only the logical level of a signal when a count value changes. A count value error can be limited to a minimum.Type: ApplicationFiled: January 4, 2016Publication date: April 28, 2016Inventors: Shunsuke Okura, Koji Shida, Hiroshi Kato
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Patent number: 9258507Abstract: There is a need to provide a solid-state imaging apparatus capable of highly accurately analog-to-digital converting an analog voltage output from a pixel circuit. The solid-state imaging apparatus supplies a counter code to an integral A/D converter. The counter code CD includes 3-phase clock signals and gray signals. The clock signals each have a cycle equal to specified cycle multiplied by 8 and allow phases to shift from each other by specified cycle. The gray signals linearly increase count values at a cycle equal to specified cycle multiplied by 4. The counter code reverses only the logical level of a signal when a count value changes. A count value error can be limited to a minimum.Type: GrantFiled: January 2, 2015Date of Patent: February 9, 2016Assignee: RENESAS ELECTRONICS CORPORATIONInventors: Shunsuke Okura, Koji Shida, Hiroshi Kato
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Patent number: 9253423Abstract: There is provided a solid-state image sensing device that can prevent the occurrence of vertical line noise with a simple circuit. A timing adjustment circuit generates a first clock supplied to a ramp generator and a second clock supplied to a counter so that a phase difference between the first clock and the second clock is within a predetermined range and differs according to lines in an image sensor.Type: GrantFiled: October 29, 2013Date of Patent: February 2, 2016Assignee: Renesas Electronics CorporationInventors: Koji Shida, Shunsuke Okura, Hirokazu Shimizu
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Publication number: 20150115135Abstract: There is a need to provide a solid-state imaging apparatus capable of highly accurately analog-to-digital converting an analog voltage output from a pixel circuit. The solid-state imaging apparatus supplies a counter code to an integral A/D converter. The counter code CD includes 3-phase clock signals and gray signals. The clock signals each have a cycle equal to specified cycle multiplied by 8 and allow phases to shift from each other by specified cycle. The gray signals linearly increase count values at a cycle equal to specified cycle multiplied by 4. The counter code reverses only the logical level of a signal when a count value changes. A count value error can be limited to a minimum.Type: ApplicationFiled: January 2, 2015Publication date: April 30, 2015Inventors: Shunsuke OKURA, Koji SHIDA, Hiroshi KATO
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Patent number: 8941045Abstract: There is a need to provide a solid-state imaging apparatus capable of highly accurately analog-to-digital converting an analog voltage output from a pixel circuit. The solid-state imaging apparatus supplies a counter code to an integral A/D converter. The counter code CD includes 3-phase clock signals and gray signals. The clock signals each have a cycle equal to specified cycle multiplied by 8 and allow phases to shift from each other by specified cycle. The gray signals linearly increase count values at a cycle equal to specified cycle multiplied by 4. The counter code reverses only the logical level of a signal when a count value changes. A count value error can be limited to a minimum.Type: GrantFiled: April 25, 2013Date of Patent: January 27, 2015Assignee: Renesas Electronics CorporationInventors: Shunsuke Okura, Koji Shida, Hiroshi Kato
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Publication number: 20140118583Abstract: There is provided a solid-state image sensing device that can prevent the occurrence of vertical line noise with simple circuit. A timing adjustment circuit generates a first clock supplied to a ramp generator and a second clock supplied to a counter so that a phase difference between the first clock and the second clock is within a predetermined range and differs according to lines in an image sensor.Type: ApplicationFiled: October 29, 2013Publication date: May 1, 2014Applicant: RENESAS ELECTRONICS CORPORATIONInventors: Koji Shida, Shunsuke Okura, Hirokazu Shimizu
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Publication number: 20130284888Abstract: There is a need to provide a solid-state imaging apparatus capable of highly accurately analog-to-digital converting an analog voltage output from a pixel circuit. The solid-state imaging apparatus supplies a counter code to an integral A/D converter. The counter code CD includes 3-phase clock signals and gray signals. The clock signals each have a cycle equal to specified cycle multiplied by 8 and allow phases to shift from each other by specified cycle. The gray signals linearly increase count values at a cycle equal to specified cycle multiplied by 4. The counter code reverses only the logical level of a signal when a count value changes. A count value error can be limited to a minimum.Type: ApplicationFiled: April 25, 2013Publication date: October 31, 2013Applicant: RENESAS ELECTRONICS CORPORATIONInventors: Shunsuke OKURA, Koji SHIDA, Hiroshi KATO
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Patent number: 7957686Abstract: An image forming apparatus includes a fuser unit that includes a first roller and a second roller opposite to each other, a first conveyance unit, a second conveyance unit, a drive unit, and a control unit to control the drive unit to rotate one or both of the first roller and the second roller in a state where a sheet contacts with the first roller and the second roller and the sheet is held by the first conveyance unit and the second conveyance unit, or in a state where after the sheet is held by the first conveyance unit and the second conveyance unit, one or both of the first conveyance unit and the second conveyance unit move in a direction of approaching at least one of the first roller and the second roller and the sheet contacts with the first roller or the second roller.Type: GrantFiled: December 19, 2008Date of Patent: June 7, 2011Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventor: Koji Shida
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Patent number: 7877028Abstract: In the image forming apparatus according to the invention, a fixer fixes toner on the sheet and presses the sheet, and a media sensor measures a thickness of the sheet before pressurization and a thickness of the sheet after pressurization. Then, by calculating an amount of heat used if the fixer fixes the toner on the sheet on the basis of the measurement result, a control unit is able to control the temperature of the fixer on the basis of the calculated amount of heat. In this manner, it is possible to appropriately calculate an amount of heat per unit area required to fix toner on the sheet.Type: GrantFiled: December 10, 2008Date of Patent: January 25, 2011Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventor: Koji Shida
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Publication number: 20090162088Abstract: An image forming apparatus includes a fuser unit that includes a first roller and a second roller opposite to each other, a first conveyance unit, a second conveyance unit, a drive unit, and a control unit to control the drive unit to rotate one or both of the first roller and the second roller in a state where a sheet contacts with the first roller and the second roller and the sheet is held by the first conveyance unit and the second conveyance unit, or in a state where after the sheet is held by the first conveyance unit and the second conveyance unit, one or both of the first conveyance unit and the second conveyance unit move in a direction of approaching at least one of the first roller and the second roller and the sheet contacts with the first roller or the second roller.Type: ApplicationFiled: December 19, 2008Publication date: June 25, 2009Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventor: Koji SHIDA
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Publication number: 20090148176Abstract: In the image forming apparatus according to the invention, a fixer fixes toner on the sheet and presses the sheet, and a media sensor measures a thickness of the sheet before pressurization and a thickness of the sheet after pressurization. Then, by calculating an amount of heat used if the fixer fixes the toner on the sheet on the basis of the measurement result, a control unit is able to control the temperature of the fixer on the basis of the calculated amount of heat. In this manner, it is possible to appropriately calculate an amount of heat per unit area required to fix toner on the sheet.Type: ApplicationFiled: December 10, 2008Publication date: June 11, 2009Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventor: Koji SHIDA