Patents by Inventor Shigeharu Ishikawa
Shigeharu Ishikawa 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: 20240171874Abstract: A photoelectric conversion device includes pixels each including a photoelectric conversion unit for generating charge by photoelectric conversion, first to fourth charge holding portions configured to be transferred charge from the photoelectric conversion unit, and an output unit for outputting a signal corresponding to charge transferred from one of the first to fourth charge holding portions, and a control circuit for controlling the plurality of pixels. The control circuit performs, during one frame, transferring charge in the photoelectric conversion unit to the first or second charge holding portion a plural times for each of the first and second charge holding portions in each of the pixels at the same time, and performs, during the one frame, reading out from each pixel a signal corresponding to charge in the third charge holding portion and a signal corresponding to charge in the fourth charge holding portion.Type: ApplicationFiled: November 8, 2023Publication date: May 23, 2024Inventors: SHUHEI HAYASHI, KENTO WATANABE, YUSUKE ONUKI, HAJIME IKEDA, DAISUKE KOBAYASHI, TAKENORI KOBUSE, TARO TAKITA, NAOKI ISHIKAWA, YUSUKE YAMASHITA, TAKAHIRO KAMIKURA, SHIGEHARU AOKI
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Publication number: 20150210601Abstract: In a method for producing a honeycomb dried body, a ceramic raw material is extruded using an extruder to mold the ceramic raw material into an uncut honeycomb molded body including cell walls defining a plurality of cells. The uncut honeycomb molded body is dried to obtain an uncut honeycomb dried body. The uncut honeycomb dried body is cut. The extruding, the drying, and the cutting are carried out successively.Type: ApplicationFiled: April 3, 2015Publication date: July 30, 2015Applicant: IBIDEN CO., LTD.Inventors: Hayato MAKINO, Shigeharu ISHIKAWA
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Publication number: 20150210029Abstract: In a method for producing a honeycomb dried body, a ceramic raw material is extruded using an extruder to mold the ceramic raw material into an uncut honeycomb molded body including cell walls defining a plurality of cells. The uncut honeycomb molded body is dried to obtain an uncut honeycomb dried body. The uncut honeycomb dried body is cut using a cutter while the cutter moves along a moving direction of the uncut honeycomb dried body. The extruding, the drying, and the cutting are carried out successively. A moving speed of the cutter is synchronized with a moving speed of the uncut honeycomb dried body during the cutting.Type: ApplicationFiled: April 3, 2015Publication date: July 30, 2015Applicant: IBIDEN CO., LTD.Inventors: Hayato MAKINO, Shigeharu ISHIKAWA
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Publication number: 20150209934Abstract: In a method for cutting a honeycomb dried body, the honeycomb dried body is cut using a water jet. The honeycomb dried body is made by drying a honeycomb molded body including cell walls defining a plurality of cells.Type: ApplicationFiled: April 3, 2015Publication date: July 30, 2015Applicant: IBIDEN CO., LTD.Inventors: Hayato MAKINO, Shigeharu ISHIKAWA
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Publication number: 20150008625Abstract: In a method of producing a honeycomb structured body, a die for extrusion molding is provided to produce at least one honeycomb molded body. The die includes a die body having a raw material inlet side face and a molded body extrusion side face. The raw material inlet side face includes raw material supply holes for supplying a ceramic raw material. The molded body extrusion side face includes molding grooves for molding the ceramic raw material into a shape of the at least one honeycomb molded body. The raw material supply holes and the molding grooves communicate with one another through connecting parts provided between the raw material supply holes and the molding grooves. The connecting parts each include, in a cross section substantially parallel to an extruding direction of the ceramic raw material, a curved part and a straight part.Type: ApplicationFiled: September 26, 2014Publication date: January 8, 2015Applicant: IBIDEN CO., LTD.Inventors: Masaya SATO, Shigeharu ISHIKAWA, Hiroyoshi GOTO
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Publication number: 20130155042Abstract: An image correction data generating system for a display panel that uses unpolished glass is equipped with a signal generator, an imager, and a controller. The signal generator supplies the display panel with a signal for causing that display panel to output an image. The imager captures an output image. The imager is able to resolve an area smaller than the individual pixel sizes of a plurality of pixels. The controller is equipped with an instructing unit, an image acquirer, a high-pass filter, and a correction data generator. The instructing unit outputs instructions for supplying a signal value shared across the entire surface of the display panel to the signal generator. The image acquirer acquires output image data from the imager. The high-pass filter computes high-pass data by applying high-pass filtering to the output image data. The correction data generator outputs an image correction table corresponding to the high-pass data.Type: ApplicationFiled: January 31, 2011Publication date: June 20, 2013Applicant: IIX INC.Inventors: Shigeharu Ishikawa, Tomoya Nishi
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Publication number: 20120251767Abstract: A honeycomb structure includes a plurality of honeycomb fired bodies. Each of the plurality of honeycomb fired bodies is combined with one another by an adhesive layer interposed between the honeycomb fired bodies to form a ceramic body. Each of the honeycomb fired bodies has a peripheral wall around each of the honeycomb fired bodies and has a plurality of cells each of which extends along a longitudinal direction of the honeycomb fired body and in parallel with one another. The cells are separated from one another with a cell wall disposed between the cells. The ceramic body includes at least one center-high-heat-capacity honeycomb fired body which is a honeycomb fired body having a heat capacity per unit volume in a central part in a plane perpendicular to the longitudinal direction larger than a heat capacity per unit volume in a peripheral part in the plane.Type: ApplicationFiled: November 4, 2011Publication date: October 4, 2012Applicant: IBIDEN CO., LTD.Inventors: Shigeharu Ishikawa, Shigeaki Goto, Toyoki Ogasawara
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Patent number: 8172921Abstract: A honeycomb structure is provided that includes a plurality of pillar-shaped honeycomb fired bodies, each having a number of cells longitudinally disposed in parallel with one another with a cell wall therebetween. An adhesive layer is interposed between adjacent honeycomb fired bodies of the plurality of honeycomb fired bodies to combine the plurality of honeycomb fired bodies together, and a sealing material layer is formed on an outer peripheral face of the combined plurality of honeycomb fired bodies. At least two honeycomb fired bodies of the plurality of honeycomb fired bodies have an outer wall that forms a portion of the outer peripheral face of the combined plurality of honeycomb fired bodies. At least one of the outer walls has a protruding portion extending from a surface thereof, and the protruding portion is made from a same material as a material of the at least one outer wall.Type: GrantFiled: December 12, 2007Date of Patent: May 8, 2012Assignee: Ibiden Co., Ltd.Inventors: Kazushige Ohno, Masafumi Kunieda, Shigeharu Ishikawa
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Patent number: 7862781Abstract: A honeycomb structure includes a ceramic block formed by a plurality of pillar-shaped honeycomb fired bodies each having a large number of cells longitudinally disposed in parallel with one another with a cell wall between the cells. The plurality of honeycomb fired bodies are combined with one another by interposing an adhesive layer with a sealing material layer formed on a peripheral face of the ceramic block and include a plurality of different shapes of the honeycomb fired bodies. A thickness of a peripheral wall forming the peripheral face of the ceramic block is virtually even. A shape of a cell located at an outermost periphery of the ceramic block is virtually identical with a shape of a cell located at a place other than the outermost periphery of the ceramic block. On the peripheral wall of the honeycomb fired body, a step is provided.Type: GrantFiled: March 13, 2008Date of Patent: January 4, 2011Assignee: Ibiden Co., Ltd.Inventors: Kazushige Ohno, Masafumi Kunieda, Shigeharu Ishikawa
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Patent number: 7862672Abstract: A method is provided that includes extrusion-molding a raw material composition containing ceramic powder and a binder to manufacture a coupled honeycomb molded body having a shape in which a plurality of pillar-shaped honeycomb molded bodies, each having a number of cells disposed in parallel with one another in a longitudinal direction with a cell wall therebetween, are integrated with one another by interposing a coupling portion. The method includes firing the coupled honeycomb molded body to manufacture a coupled honeycomb fired body, cutting the coupling portion to manufacture coupling-portion-cut honeycomb fired bodies, and binding a plurality of honeycomb fired bodies by interposing an adhesive layer, where at least one of the bound honeycomb fired bodies is a coupling-portion-cut honeycomb fired body.Type: GrantFiled: December 14, 2007Date of Patent: January 4, 2011Assignee: Ibiden Co., Ltd.Inventors: Kazushige Ohno, Masafumi Kunieda, Shigeharu Ishikawa
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Patent number: 7654887Abstract: The vacuum chuck according to the present invention is provided with a sucking plate for sucking and holding an object to be sucked, in which a sucking layer made of a porous ceramic and a dense material layer are integrated, the sucking layer being located on the side for sucking the object to be sucked, wherein the dense material layer is formed by impregnating the porous ceramic with a metal.Type: GrantFiled: September 25, 2006Date of Patent: February 2, 2010Assignee: Ibiden Co., Ltd.Inventors: Shigeharu Ishikawa, Katsuyuki Kiriyama
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Publication number: 20090239740Abstract: A honeycomb structure includes a plurality of honeycomb fired bodies. Each of the plurality of honeycomb fired bodies has a longitudinal direction and cell walls extending along the longitudinal direction to define cells. An adhesive layer is provided between the plurality of honeycomb fired bodies to connect the plurality of honeycomb fired bodies so that each longitudinal direction is substantially in parallel with each other. The plurality of honeycomb fired bodies include at least one center-portion honeycomb fired body located at a center portion of the honeycomb structure and at least one periphery honeycomb fired body surrounding the center-portion honeycomb fired body to form a peripheral face of the honeycomb structure. The periphery honeycomb fired body includes contact faces contacting the adhesive layer. At least one of the contact faces has irregularities.Type: ApplicationFiled: January 6, 2009Publication date: September 24, 2009Applicant: IBIDEN CO., LTD.Inventors: Kazushige Ohno, Kazutake Ogyu, Shigeharu Ishikawa
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Publication number: 20090239028Abstract: A honeycomb structure includes a plurality of honeycomb fired bodies each having cells. The honeycomb fired bodies include a center-portion honeycomb fired body and a peripheral-portion honeycomb fired body. An area of the center-portion honeycomb fired body is at least about 900 mm2 and at most about 2500 mm2 in a cross section. A shape of the peripheral-portion honeycomb fired body is different from the shape of the center-portion honeycomb fired body in the cross section. An area of the peripheral-portion honeycomb fired body is at least about 0.9 times and at most about 1.3 times larger than the area of the center-portion honeycomb fired body in the cross section.Type: ApplicationFiled: March 2, 2009Publication date: September 24, 2009Applicant: IBIDEN CO., LTD.Inventors: Kazushige OHNO, Kazutake Ogyu, Shigeharu Ishikawa
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Publication number: 20080236394Abstract: A honeycomb structure includes a ceramic block formed by a plurality of pillar-shaped honeycomb fired bodies each having a large number of cells longitudinally disposed in parallel with one another with a cell wall between the cells. The plurality of honeycomb fired bodies are combined with one another by interposing an adhesive layer with a sealing material layer formed on a peripheral face of the ceramic block and include a plurality of different shapes of the honeycomb fired bodies. A thickness of a peripheral wall forming the peripheral face of the ceramic block is virtually even. A shape of a cell located at an outermost periphery of the ceramic block is virtually identical with a shape of a cell located at a place other than the outermost periphery of the ceramic block. On the peripheral wall of the honeycomb fired body, a step is provided.Type: ApplicationFiled: March 13, 2008Publication date: October 2, 2008Applicant: IBIDEN CO., LTD.Inventors: Kazushige OHNO, Masafumi KUNIEDA, Shigeharu ISHIKAWA
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Publication number: 20080203626Abstract: A method is provided that includes extrusion-molding a raw material composition containing ceramic powder and a binder to manufacture a coupled honeycomb molded body having a shape in which a plurality of pillar-shaped honeycomb molded bodies, each having a number of cells disposed in parallel with one another in a longitudinal direction with a cell wall therebetween, are integrated with one another by interposing a coupling portion. The method includes firing the coupled honeycomb molded body to manufacture a coupled honeycomb fired body, cutting the coupling portion to manufacture coupling-portion-cut honeycomb fired bodies, and binding a plurality of honeycomb fired bodies by interposing an adhesive layer, where at least one of the bound honeycomb fired bodies is a coupling-portion-cut honeycomb fired body.Type: ApplicationFiled: December 14, 2007Publication date: August 28, 2008Applicant: IBIDEN CO., LTD.Inventors: Kazushige Ohno, Masafumi Kunieda, Shigeharu Ishikawa
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Publication number: 20080202087Abstract: A honeycomb structure is provided that includes a plurality of pillar-shaped honeycomb fired bodies, each having a number of cells longitudinally disposed in parallel with one another with a cell wall therebetween. An adhesive layer is interposed between adjacent honeycomb fired bodies of the plurality of honeycomb fired bodies to combine the plurality of honeycomb fired bodies together, and a sealing material layer is formed on an outer peripheral face of the combined plurality of honeycomb fired bodies. At least two honeycomb fired bodies of the plurality of honeycomb fired bodies have an outer wall that forms a portion of the outer peripheral face of the combined plurality of honeycomb fired bodies. At least one of the outer walls has a protruding portion extending from a surface thereof, and the protruding portion is made from a same material as a material of the at least one outer wall.Type: ApplicationFiled: December 12, 2007Publication date: August 28, 2008Applicant: IBIDEN CO., LTD.Inventors: Kazushige Ohno, Masafumi Kunieda, Shigeharu Ishikawa
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Publication number: 20070063453Abstract: The vacuum chuck according to the present invention is provided with a sucking plate for sucking and holding an object to be sucked, in which a sucking layer made of a porous ceramic and a dense material layer are integrated, the sucking layer being located on the side for sucking the object to be sucked, wherein the dense material layer is formed by impregnating the porous ceramic with a metal.Type: ApplicationFiled: September 25, 2006Publication date: March 22, 2007Applicant: IBIDEN CO., LTD.Inventors: Shigeharu Ishikawa, Katsuyuki Kiriyama
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Patent number: D609319Type: GrantFiled: November 20, 2008Date of Patent: February 2, 2010Assignee: Ibiden Co., Ltd.Inventors: Kazushige Ohno, Kazutake Ogyu, Shigeharu Ishikawa
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Patent number: D609320Type: GrantFiled: November 20, 2008Date of Patent: February 2, 2010Assignee: IBIDEN Co., Ltd.Inventors: Kazushige Ohno, Kazutake Ogyu, Shigeharu Ishikawa
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Patent number: D647607Type: GrantFiled: November 20, 2008Date of Patent: October 25, 2011Assignee: Ibiden Co., Ltd.Inventors: Kazushige Ohno, Kazutake Ogyu, Shigeharu Ishikawa