Patents by Inventor Toshio Yamada
Toshio Yamada 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: 20110062990Abstract: A pull-up circuit prevents generation of a leak current if a difference of potentials occurs between a power source voltage of a pull-up circuit (a bus-hold circuit) and an input terminal. A control terminal is provided in the bus-hold circuit. Inputs of the input terminal and the control terminal are input to a NOR gate, and an output of the NOR gate is input to a gate terminal of a first MOSFET that controls coupling between an input terminal and the power source voltage of the bus-hold circuit. A second MOSFET (“control” MOSFET) is provided as a switch that operates by an inverted output of the control terminal. By coupling the first MOSFET and the control MOSFET in series, the coupling between the input terminal and the power source voltage is controlled with a higher precision, thereby preventing generation of a leak current.Type: ApplicationFiled: August 30, 2010Publication date: March 17, 2011Applicant: Renesas Electronics CorporationInventors: Toshio Yamada, Kazuo Tanaka, Akinobu Watanabe, Shigeru Yamamoto, Yukio Hiraiwa
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Patent number: 7887761Abstract: This invention provides a honeycomb catalyst having an excellent purification efficiency and a small pressure loss and can be mounted even in a limited space, the honeycomb catalyst comprising: porous partition walls 4 having plural pores 25, which are arranged to form plural cells 3 allowing communication between two end faces; plugging portions being arranged to plug the cells 3 in one of the end faces; and catalytically active components 5, 15 loaded on surfaces of partition walls 4 and inner surfaces of pores 25, wherein many catalytically active component-loading pores 35 through which a gas can pass are formed in partition walls 4, and a ratio of a mass (MW) of the catalytically active component loaded on the surfaces of partition walls 4 to a mass (MP) of the catalytically active component 5 loaded on the inner surfaces of the pores 25 is (MW):(MP)=1:3 to 3:1.Type: GrantFiled: October 11, 2007Date of Patent: February 15, 2011Assignee: NGK Insulators, Ltd.Inventors: Akira Takahashi, Naomi Noda, Yukio Miyairi, Toshio Yamada
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Patent number: 7858168Abstract: There is disclosed a honeycomb structure in which while sufficiently maintaining a collection efficiency and a bonding strength of a plugging portion, a thermal shock resistance is improved. A plugging portion 32 is formed in the end of each cell 3 of a honeycomb structure 1, and a gap 34 having a size of 20 ?m or more is formed between the plugging portion 32 and each partition wall 2. Moreover, the length of the gap 34 in the axial direction is 50% or more and less than 95% of the length of the plugging portion 32 in the axial direction, the length of the gap in a face vertical to the axial direction is 20% or more and 50% or less of the length of the inner peripheral surface of the cell 3, and the gaps are formed in at least ? of the plugging portions 32.Type: GrantFiled: March 25, 2009Date of Patent: December 28, 2010Assignee: NGK Insulators, Ltd.Inventors: Toshio Yamada, Takeshi Tokunaga, Makoto Furutani
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Publication number: 20100277621Abstract: An imaging method includes a step of setting, when a digital zoom operation mode for enlarging an image imaged by a imaging part of an X-Y address type is selected, a zoom magnification and enlarging the image at the zoom magnification set. The imaging method includes the steps of: setting an imaging range in a vertical direction of the imaging part according to the zoom magnification set in the digital zoom step; outputting a driving signal for scanning the shutter signal and the readout signal to perform exposure in the imaging range set in the imaging range setting step and driving the, imaging part; and discarding, when the zoom magnification is changed in the digital zoom step, images imaged by the imaging part before and after the change of the zoom magnification to prevent the images from being used.Type: ApplicationFiled: July 15, 2010Publication date: November 4, 2010Applicant: Sony CorporationInventors: Masato Yoneda, Toshio Yamada
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Publication number: 20100247852Abstract: A honeycomb structure 100 includes: a porous partition wall 2 defining a plurality of cells 1 serving as fluid passages; an outer peripheral wall 3 located at the outermost periphery; a first cell 1a having one end opened and the end plugged; and a second cell 1b having the one end plugged and the other end opened, wherein: the first cells 1a and the second cells 1b are disposed alternately; and the area of the first cells 1a is larger than that of the second cells 1b in a cross section perpendicular to a center axis, and wherein the thickness of the partition wall that forms at least one cell from the outermost periphery in the outer peripheral section 12 is 1.1 to 3.0 times the thickness of the partition wall in the center section 11.Type: ApplicationFiled: March 4, 2010Publication date: September 30, 2010Applicant: NGK Insulators, Ltd.Inventors: Toshio YAMADA, Kentaro Sugimoto
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Publication number: 20100239812Abstract: There is provided a honeycomb structure including a plurality of honeycomb segments having porous partition walls separating and forming a plurality of cells functioning as fluid passages and an outer peripheral wall located in the outermost periphery. The first cells open in an end portion on one side and plugged in the other end portion on the other side and the second cells plugged in the end portion on the one side and open in the other end portion on the other side are alternately disposed. The first cells have an area larger than that of the second cells in a cross section perpendicular to the central axial direction. The outer peripheral wall has protruding portions along an external shape of the first cells and depressed portions along an external shape of the second cells. The honeycomb segments are bonded together with a bonding member.Type: ApplicationFiled: February 24, 2010Publication date: September 23, 2010Applicant: NGK Insulators, Ltd.Inventors: Koji Nagata, Toshio Yamada
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Publication number: 20100236517Abstract: A four-cycle engine (1) structured to introduce fresh air into a cylinder (1a) via an intake port (1d) opened/closed by intake valves (IN1, IN2) and suck exhaust gas back into the cylinder (1a) via an exhaust port opened/closed by exhaust valves (EX1, EX2), wherein the exhaust port has a first exhaust port (1p) and a second exhaust port (1e), and the exhaust gas is sucked in back from the first exhaust port (1p) and secondary air is sucked in from the second exhaust port (1e) to form, in the cylinder (1a), a first temperature layer (T1) at a high temperature mainly composed of the exhaust gas and a second temperature layer (T2) at a temperature lower than that of the first temperature layer (T1) mainly composed of the secondary air.Type: ApplicationFiled: May 9, 2008Publication date: September 23, 2010Inventors: Koichi Hatamura, Toshio Yamada, Atsushi Morita
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Publication number: 20100239811Abstract: There is provided a honeycomb structure comprising a plurality of honeycomb segments having porous partition walls separating and forming a plurality of cells and an outer peripheral wall located in the outermost periphery, first cells each open in an end portion on one side and plugged in the other end portion on the other side and second cells each plugged in the end portion on the one side and open in the other end portion on the other side being alternately disposed with the first cells having an area larger than that of the second cells in a cross section perpendicular to the central axial direction, and the outer peripheral wall having protruding portions along an external shape of the first cells and depressed portions along an external shape of the second cells. The honeycomb segments are bonded to each other with a bonding member.Type: ApplicationFiled: February 24, 2010Publication date: September 23, 2010Applicant: NGK Insulators, Ltd.Inventors: Toshio Yamada, Koji Nagata
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Patent number: 7782376Abstract: An imaging method includes a step of setting, when a digital zoom operation mode for enlarging an image imaged by a imaging part of an X-Y address type is selected, a zoom magnification and enlarging the image at the zoom magnification set. The imaging method includes the steps of: setting an imaging range in a vertical direction of the imaging part according to the zoom magnification set in the digital zoom step; outputting a driving signal for scanning the shutter signal and the readout signal to perform exposure in the imaging range set in the imaging range setting step and driving the imaging part; and discarding, when the zoom magnification is changed in the digital zoom step, images imaged by the imaging part before and after the change of the zoom magnification to prevent the images from being used.Type: GrantFiled: October 27, 2005Date of Patent: August 24, 2010Assignee: Sony CorporationInventors: Masato Yoneda, Toshio Yamada
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Publication number: 20100180859Abstract: A four-cycle engine including a blowdown pressure wave supercharging system (40) compressing and supplying exhaust gas into a second cylinder (#1) by causing a pressure wave (blowdown pressure wave) from a combustion chamber at opening of an exhaust valve of a first cylinder (#4) to act on an exhaust port (1e) of the second cylinder (#1) and during a reopen period of an exhaust valve of the second cylinder; and a mask member (50) restraining the exhaust gas (EGR gas) compressed and supplied into the second cylinder (#1) from mixing with fresh air flowing from an intake port (1d), wherein a first temperature layer (T1) at a high temperature containing a large amount of the EGR gas in the fresh air and a second temperature layer (T2) at a temperature lower than that of the first temperature layer (T1) containing a smaller amount of the EGR gas than that of the first temperature layer (T1) in the fresh air are formed in the second cylinder (#1).Type: ApplicationFiled: May 20, 2008Publication date: July 22, 2010Inventors: Koichi Hatamura, Toshio Yamada, Atsushi Morita
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Patent number: 7754160Abstract: A honeycomb catalyst body includes: porous partition walls having a large number of pores and disposed to form a plurality of cells communicating between two end faces, plugged portions disposed to plug each of the cells on one of the end faces, and catalyst layers loaded in layers on an inner surface of the cells and an inner surface of the pores and containing a noble metal. Mass (Mc) of the noble metal contained in the catalyst layer loaded on the inner surface of the cells and mass (Mp) of the noble metal contained in the catalyst layer loaded on the inner surface of the pores satisfy the relation of (Mp)/(Mc)?4. The honeycomb catalyst body is excellent in purification efficiency, has low pressure loss, and is mountable even in a limited space.Type: GrantFiled: August 29, 2006Date of Patent: July 13, 2010Assignee: NGK InsulatorsInventors: Yukio Miyairi, Toshio Yamada
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Publication number: 20100135866Abstract: A honeycomb filter including partition walls having a porous partition wall base material and a surface layer provided on only inflow side or both inflow and outflow sides of the partition wall base material, and satisfying the following conditions capable of using as a DPF. The surface layer has a peak pore diameter of from 0.3 ?m to 20 ?m (exclusive) being equal to or smaller than the average pore diameter of the base material; the porosity of from 60% to 95% (exclusive) when measured by mercury porosimetry being larger than that of the base material; and the thickness L1 of from 0.5% to 30% (exclusive) of the partition wall thickness L2; and mass per filtration area of from 0.01 mg/cm2 to 6 mg/cm2 (exclusive). The base material has an average pore diameter of from 10 ?m to 60 ?m (exclusive) and a porosity of from 40% to 65% (exclusive).Type: ApplicationFiled: October 21, 2009Publication date: June 3, 2010Applicant: NGK INSULATORS, LTD.Inventors: Yukio MIZUNO, Naomi NODA, Toshio YAMADA, Yukio MIYAIRI, Yukari NAKANE, Yasushi NOGUCHI
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Patent number: 7712505Abstract: To provide a tape cutter device that allows a cutting blade to be disposed at a non-adhesion-surface side of an adhesive tape and that can easily form a fold, including a non-adhesion portion, at a cut end portion of the adhesive tape after a cutting operation.Type: GrantFiled: June 26, 2008Date of Patent: May 11, 2010Assignee: Alps Electric Co., Ltd.Inventor: Toshio Yamada
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Patent number: 7645427Abstract: There is provided a honeycomb structure usable in a filter for trapping/collecting particulates included in exhaust gas and in which ashes deposited inside can be removed without requiring any special mechanism or apparatus or without detaching the filter from an exhaust system. The honeycomb structure includes: a plurality of through channels 9 separated by porous partition walls 7 and extending in the axial direction of the honeycomb structure; and plugging portions 11 for plugging one end of each of predetermined through channels 9a and an opposite end of each of the rest of through channels 9b in a checkered flag pattern, alternately. In the honeycomb structure, at least one slit 15 per through channel is formed in the vicinity of the plugging portions 11 of the partition walls 7 surrounding the respective through channels 9b.Type: GrantFiled: September 23, 2003Date of Patent: January 12, 2010Assignee: NGK Insulators, Ltd.Inventors: Shogo Hirose, Toshio Yamada
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Patent number: 7618596Abstract: A honeycomb filter is provided comprising a honeycomb structure having a large number of through channels formed in an axial direction and partitioned by porous partition walls, each of the through channels having a first end at one end of the filter and a second end at an opposite end of the filter, wherein a first group of the through channels are plugged only at the first end, and a second group of the through channels are not plugged. A honeycomb structure is further provided having through channels with a relatively large frontal area and through channels with a relatively small frontal area, and wherein all the through channels with a relatively large frontal area are the first group, and all the through channels with a relatively small frontal area are in the second group. A honeycomb filter is also provided with a catalyst component carried on a surface of the partition walls and/or a surface of pores present in an inside of the partition walls.Type: GrantFiled: February 17, 2004Date of Patent: November 17, 2009Assignee: NGK InsulatorsInventors: Yukihito Ichikawa, Toshio Yamada
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Publication number: 20090246458Abstract: There is disclosed a honeycomb structure in which while sufficiently maintaining a collection efficiency and a bonding strength of a plugging portion, a thermal shock resistance is improved. A plugging portion 32 is formed in the end of each cell 3 of a honeycomb structure 1, and a gap 34 having a size of 20 ?m or more is formed between the plugging portion 32 and each partition wall 2. Moreover, the length of the gap 34 in the axial direction is 50% or more and less than 95% of the length of the plugging portion 32 in the axial direction, the length of the gap in a face vertical to the axial direction is 20% or more and 50% or less of the length of the inner peripheral surface of the cell 3, and the gaps are formed in at least ? of the plugging portions 32.Type: ApplicationFiled: March 25, 2009Publication date: October 1, 2009Applicant: NGK Insulators, Ltd.Inventors: Toshio YAMADA, Takeshi TOKUNAGA, Makoto FURUTANI
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Publication number: 20090246454Abstract: A precise exhaust gas control can be achieved without being influenced by fluctuations of the excess air ratio (?) between cylinders of engines or the size of the diameter (the sectional area) of the honeycomb structure. The honeycomb structure is formed by a plurality of cells separated from one another by porous partition walls and functioning as fluid flow paths, the honeycomb structure includes: a sensor plug-in hole 7 which is formed in an outer peripheral surface 4 of the honeycomb structure and into which a sensor can be plugged, and the sensor plug-in hole 7 is provided with at least one deep hole 8 which communicates with the sensor plug-in hole.Type: ApplicationFiled: March 18, 2009Publication date: October 1, 2009Applicant: NGK INSULATORS, LTD.Inventors: Toshio YAMADA, Hideyuki TOYOSHIMA
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Publication number: 20090226348Abstract: A honeycomb filter is provided comprising a honeycomb structure having a large number of through channels formed in an axial direction and partitioned by porous partition walls, each of the through channels having a first end at one end of the filter and a second end at an opposite end of the filter, wherein a first group of the through channels are plugged only at the first end, and a second group of the through channels are not plugged. A honeycomb structure is further provided having through channels with a relatively large frontal area and through channels with a relatively small frontal area, and wherein all the through channels with a relatively large frontal area are the first group, and all the through channels with a relatively small frontal area are in the second group. A honeycomb filter is also provided with a catalyst component carried on a surface of the partition walls and/or a surface of pores present in an inside of the partition walls.Type: ApplicationFiled: May 8, 2009Publication date: September 10, 2009Applicant: NGK INSULATORS, LTD.Inventors: Yukihito Ichikawa, Toshio Yamada
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Patent number: 7488368Abstract: The ceramic honeycomb structure has a plurality of cells partitioned by porous partition walls and extending through the structure in an axial direction, one end portion of a predetermined cell is plugged with a plugging portion constituted of a plugging material with which the cell is filled, and the other end portion of a remaining cell is plugged with the plugging portion on a side opposite to the end portion of the predetermined cell. In the ceramic honeycomb structure, a sectional numerical aperture of the plugging portion in the vicinity of the partition wall is smaller than that of the plugging portion in the vicinity of a central axis, and a difference between the sectional numerical apertures is 10% or more.Type: GrantFiled: October 19, 2005Date of Patent: February 10, 2009Assignee: NGK Insulators, Ltd.Inventors: Toshio Yamada, Tatsuhiko Hatano
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Patent number: 7488412Abstract: There is disclosed a honeycomb structural body (1) comprising: a plurality of through channels (3) formed by a plurality of partition walls (2) in an axial direction. The honeycomb structural body (1) is constituted of a plurality of honeycomb sections (10, 11) formed of materials having different characteristics, and the plurality of honeycomb sections (10, 11) are directly bonded to and integrated with one another. According to the structure of this honeycomb structural body, different high performances can be fulfilled in accordance with requests for each honeycomb section. Additionally, there is not any local stress concentration by shape mismatch of each honeycomb section or presence of a bond material, and reliability at the time of use, and the like can be enhanced.Type: GrantFiled: June 18, 2002Date of Patent: February 10, 2009Assignee: NGK Insulators, Ltd.Inventors: Fumio Abe, Toshio Yamada