Patents by Inventor Yoshitaka Hayashi
Yoshitaka Hayashi 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: 20240103206Abstract: An anti-glare film is attached on a surface of a display, and includes an anti-glare layer. The anti-glare layer is set to have a sparkle value falling within a range from 6 to 10, which is defined based on a value of a standard deviation of luminance distribution of the display under a state in which the anti-glare film is attached on the surface of the display, a value of specular gloss of 30% or less, which is measured with 60-degree specular gloss, a value of transmission image clarity of 60% or less, which has an optical comb of 0.5 mm, and a haze value of 50% or less. Consequently, satisfactory anti-glare property can be provided while appropriately suppressing sparkle on the display.Type: ApplicationFiled: December 8, 2023Publication date: March 28, 2024Applicant: DAICEL CORPORATIONInventors: Yoshitaka SUGAWARA, Masaki HAYASHI
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Publication number: 20240068416Abstract: This gas turbine equipment comprises a gas turbine and a control device. A combustor of the gas turbine uses ammonia as fuel, and uses the RQL method. A compressor of the gas turbine includes an intake adjustor that adjusts an intake rate which is the flow rate of air that flows into a compressor casing. When the concentration of NOx in exhaust gas reaches or exceeds a predetermined value, the control device controls the operation of the intake adjustor so that the intake rate decreases.Type: ApplicationFiled: February 3, 2022Publication date: February 29, 2024Inventors: Tatsuya HAGITA, Akinori HAYASHI, Hiroyuki TAKEISHI, Yoshitaka HIRATA, Keisuke MIURA, Keita YUNOKI
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Publication number: 20200102868Abstract: A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate comprising an inlet end, an outlet end with an axial length L; an inlet catalyst layer beginning at the inlet end and extending for less than the axial length L, wherein the inlet catalyst layer comprises an inlet rhodium component and an inlet platinum component; an outlet catalyst layer beginning at the outlet end and extending for less than the axial length L, wherein the outlet catalyst layer comprises an outlet rhodium component.Type: ApplicationFiled: September 26, 2019Publication date: April 2, 2020Inventors: Yuichi FUJIMORI, Takashi YAMADA, Tomotaka HIROTA, Kenji TANIKAWA, Shintaro SAIKI, Yoshitaka HAYASHI, Sungwook KIM
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Patent number: 10298165Abstract: A rotary electric machine system includes a rotary electric machine, first and second power-supply systems, a sensor, a first abnormality determination section determining whether an abnormality has occurred in a first armature-winding group, the first power-supply system, or the sensor, a second abnormality determination section that, on condition an abnormality has been determined, controls power output depending on a type of the abnormality, increases current flowing from the second power-supply system to a second armature-winding group when output torque due to current flowing to the first armature-winding group decreases, to increase output torque due to the current flowing to the second armature-winding group, and determines whether an abnormality has occurred in one of the first armature-winding group, the first power-supply system, and the sensor, and a prohibition section that, on condition that an abnormality has been determined, prohibits power supply from the first power-supply system to the firstType: GrantFiled: November 2, 2017Date of Patent: May 21, 2019Assignee: Denso CorporationInventors: Takashi Suzuki, Yoshitaka Hayashi
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Publication number: 20180131306Abstract: A rotary electric machine system includes a rotary electric machine, first and second power-supply systems, a sensor, a first abnormality determination section determining whether an abnormality has occurred in a first armature-winding group, the first power-supply system, or the sensor, a second abnormality determination section that, on condition an abnormality has been determined, controls power output depending on a type of the abnormality, increases current flowing from the second power-supply system to a second armature-winding group when output torque due to current flowing to the first armature-winding group decreases, to increase output torque due to the current flowing to the second armature-winding group, and determines whether an abnormality has occurred in one of the first armature-winding group, the first power-supply system, and the sensor, and a prohibition section that, on condition that an abnormality has been determined, prohibits power supply from the first power-supply system to the firstType: ApplicationFiled: November 2, 2017Publication date: May 10, 2018Inventors: Takashi Suzuki, Yoshitaka Hayashi
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Patent number: 9543880Abstract: A rotary machine control apparatus controlling a drive of a rotary machine that has multiple winding groups is provided. The rotary machine control apparatus includes electric power converters in multiple systems, a failure detection portion, and a control portion. An electric power converter has switching elements in an upper arm and a lower arm and converts DC power. The failure detection portion detects a failure of an electric power converter or a winding group. The control portion calculates a current command value and a maximum current limit value, and controls an output to the electric power converter. The control portion stops the output to the electric power converter in a failure system, and the control portion increases the maximum current limit value with respect to the output to an electric power converter in a normal system.Type: GrantFiled: July 7, 2015Date of Patent: January 10, 2017Assignee: DENSO CORPORATIONInventors: Kouichi Nakamura, Takashi Suzuki, Yoshitaka Hayashi
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Publication number: 20160006387Abstract: A rotary machine control apparatus controlling a drive of a rotary machine that has multiple winding groups is provided. The rotary machine control apparatus includes electric power converters in multiple systems, a failure detection portion, and a control portion. An electric power converter has switching elements in an upper arm and a lower arm and converts DC power. The failure detection portion detects a failure of an electric power converter or a winding group. The control portion calculates a current command value and a maximum current limit value, and controls an output to the electric power converter. The control portion stops the output to the electric power converter in a failure system, and the control portion increases the maximum current limit value with respect to the output to an electric power converter in a normal system.Type: ApplicationFiled: July 7, 2015Publication date: January 7, 2016Inventors: Kouichi Nakamura, Takashi Suzuki, Yoshitaka Hayashi
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Patent number: 8227067Abstract: An optical recording medium containing a substrate and a recording layer over the substrate, wherein the recording layer primarily contains Bi and O, and further contains B and at least one element X selected from Ge, Li, Sn, Cu, Fe, Pd, Zn, Mg, Nd, Mn and Ni, and a sputtering target containing Bi, B and at least one element X selected from Ge, Li, Sn, Cu, Fe, Pd, Zn, Mg, Nd, Mn and Ni.Type: GrantFiled: January 28, 2008Date of Patent: July 24, 2012Assignee: Ricoh Company, Ltd.Inventors: Yoshitaka Hayashi, Noboru Sasa, Toshishige Fujii, Masayuki Fujiwara, Toshihide Sasaki, Masaki Kato, Masataka Mohri, Katsuyuki Yamada
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Patent number: 8163366Abstract: The present invention provides a write-once-read-many optical recording medium comprising a substrate, a recording layer comprising any one of bismuth and an oxide of bismuth, an overcoat layer and a reflective layer in this order from a laser beam incident plane, wherein the write-once-read-many optical recording medium has a reflectivity of 35% or less when a laser is applied to the flat part of the substrate or a write-once-read-many optical recording medium comprising a substrate, an undercoat layer, a recording layer comprising any one of bismuth and an oxide of bismuth, an overcoat layer and a reflective layer in this order from a laser beam incident plane, wherein the write-once-read-many optical recording medium has a reflectivity of 35% or less when a laser is applied to the flat part of the substrate.Type: GrantFiled: December 13, 2005Date of Patent: April 24, 2012Assignee: Ricoh Company, Ltd.Inventors: Toshishige Fujii, Noboru Sasa, Yoshitaka Hayashi, Hiroshi Miura, Masayuki Fujiwara
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Patent number: 8147942Abstract: A write-once-read-many optical recording medium is disclosed that includes a support substrate; a recording layer on the support substrate, the recording layer containing an oxide of one of a metal and a metalloid as a principal component; and a layer adjacent to the recording layer. The recording layer includes a region where a constituent element of the adjacent layer is dispersed. Recording and reproduction are performable with laser light of a blue wavelength region.Type: GrantFiled: April 1, 2008Date of Patent: April 3, 2012Assignee: Ricoh Company, Ltd.Inventors: Noboru Sasa, Masayuki Fujiwara, Yoshitaka Hayashi, Toshishige Fujii, Toshihide Sasaki, Hiroyoshi Sekiguchi, Hideyuki Yasufuku, Kawori Tanaka, Kengo Makita, Noriyuki Iwata
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Patent number: 8139468Abstract: It is an object of the present invention to provide an optical recording medium containing a laminated structure of a first deformable material layer containing a phase-change material that absorbs light at a recording wavelength to generate heat and is subject to exothermic melting and deformation and a second deformable material layer containing a material which contains a silicon oxide (SiOx; 0<x?2) that transmits light and is subject to thermal deformation and alteration. After information is recorded, the thickness of the first deformable material layer is changed according to the recorded information making center of the recorded marks thicker than the ends and the second deformable material layer is deformed and altered corresponding to the concave-convex-pattern formed on the first deformable material layer based on the recorded information and when the information is reproduced, the first deformable material layer is altered from solid to molten state.Type: GrantFiled: February 15, 2006Date of Patent: March 20, 2012Assignee: Ricoh Company, Ltd.Inventors: Hiroshi Miura, Nobuaki Toyoshima, Yoshitaka Hayashi, Suguru Sangu, Noriyuki Iwata
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Patent number: 8134326Abstract: In a motor drive apparatus for an EPS motor, which provides steering assist torque in an electric power steering system, a three-phase inverter applies three phase-voltages to the EPS motor, and a controller controls the three-phase inverter. The controller drives the EPS motor by implementing a two-phase modulation method and a three-phase modulation method, when at least one of the assist torque, a steering angle acceleration and a function value of a predetermined function is greater and less than a predetermined threshold value indicative of a rapid steering operation, respectively.Type: GrantFiled: December 16, 2008Date of Patent: March 13, 2012Assignee: Denso CorporationInventor: Yoshitaka Hayashi
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Patent number: 8124211Abstract: To provide an optical recording medium including a substrate and over the substrate at least a recording layer that can record and reproduce with laser light in a blue wavelength region, wherein the recording layer includes Bi and O as main components, further includes at least any of C and N, and does not include Fe; or an optical recording medium including a substrate and over the substrate at least a recording layer that contains, as main components, Bi oxide, and a simple substance of each of one or more elements M (except Bi, C, and N) that enhance a light absorption function for a recording and reproducing laser light, wherein the optical recording medium can record and reproduce with laser light in a blue wavelength region, is provided.Type: GrantFiled: March 5, 2008Date of Patent: February 28, 2012Assignee: Ricoh Company, Ltd.Inventors: Noboru Sasa, Yoshitaka Hayashi, Toshishige Fujii, Toshihide Sasaki, Hiroyoshi Sekiguchi, Masayuki Fujiwara
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Patent number: 8124212Abstract: To provide a sputtering target for preparing a recordable optical recording medium characterized by comprising Bi and B and a manufacturing method thereof, a recordable high density optical recording medium using the sputtering target, and a sputtering target which is capable of improving a speed of the film formation for the improvement of productivity, which has a high intensity at the time of the film formation and which has a heightened packing density.Type: GrantFiled: December 17, 2010Date of Patent: February 28, 2012Assignee: Ricoh Company, Ltd.Inventors: Yoshitaka Hayashi, Noboru Sasa, Toshishige Fujii, Masayuki Fujiwara, Hiroshi Miura, Masaki Kato, Takeshi Kibe, Shinya Narumi
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Publication number: 20120031085Abstract: An exhaust gas purifying catalyst includes two catalyst layers containing a fire resistant inorganic compound carrying a catalyst component in an exhaust gas passage of a base material provided with the exhaust gas passage penetrating through the base material from the exhaust gas introduction port side to discharge port side, wherein each catalyst layer is formed by supporting the catalyst component on a different fire resistant inorganic compound, a catalyst layer extended from the exhaust gas introduction port side to the exhaust gas discharge port side and a catalyst layer extended from the exhaust gas discharge port side to the exhaust gas introduction port side are formed such that the catalyst layers are overlapped on each other and the exhaust gas introduction port side is coated only with one of the catalyst layers and the exhaust gas discharge port side is coated only with the other.Type: ApplicationFiled: March 30, 2011Publication date: February 9, 2012Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANYInventors: Geng Zhang, Mitsuru Komori, Yoshitaka Hayashi, Atsunobu Yoshida, Kenji Tanikawa
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Publication number: 20110221382Abstract: In a motor control method for driving a three-phase motor by an inverter, a dead time compensation operation is performed to compensate for output voltage loss caused by a dead time, in which both a high-side FET and a low-side FET in the inverter are turned off. For example, in a range between 0° and 60° and a range between 120° and 180°, a reference value is provided stepwise to a PWM command value of a U-phase. In a range between 60° and 120°, a doubled reference value is provided stepwise to the PWM command value. A compensated PWM voltage is supplied to the inverter. The stepwise change at zero-cross points, 0° and 180°, is reduced relative to a case, in which a fixed dead time compensation value is provided in a range between 0° and 180°. Torque ripple near the zero-cross point is thus suppressed.Type: ApplicationFiled: March 8, 2011Publication date: September 15, 2011Applicant: DENSO CORPORATIONInventor: Yoshitaka HAYASHI
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Publication number: 20110222807Abstract: A tandem angular ball bearing is provide that prevent damage from occurring to the rolling surfaces of the balls during assembly and transport to an extent that would cause an excessive decrease in life of the balls, and that can maintain excelled durability without the occurrence of excessive vibration and noise during operation. In order to accomplish this, the entire portion of the inner peripheral surface of an outer ring (5b) from a small-diameter side outer ring raceway (11) to the continuous section (25a) that is continuous with the end surface (23) on the large inner diameter side of the outer ring (5b), and the entire portion of the outer peripheral surface of an inner ring (6b) from a large-diameter side inner ring raceway (12) to the continuous section (25g) that is continuous with the end surface (14) on the small outer-diameter side of the inner ring (6b) are polished smooth surfaces having no indifferentiable corner sections in the cross-section shape.Type: ApplicationFiled: November 19, 2010Publication date: September 15, 2011Inventors: Yasushi Tanoue, Takanori Tanaka, Hiroki Maejima, Yoshitaka Hayashi, Kenichi Abe, Kinji Yukawa, Tomoharu Saito
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Publication number: 20110148336Abstract: A motor control device detects electric currents on two perpendicular axes and calculates voltage command values on the two perpendicular axes according to deviations between the detected electric currents and target current values respectively, thereby to perform feedback control of a brushless motor equipped with a rotation angle sensor. On the premise that a ? axis, which represents a phase component, and a ? axis, which represents a torque component, become control axes due to an assembly error of the rotation angle sensor, a correction value calculation unit of the motor control device sets an electric current on the ? axis to 0 to establish a no-load steady rotation state and calculates the assembly error from a voltage equation on ?-? axes.Type: ApplicationFiled: December 22, 2010Publication date: June 23, 2011Applicant: DENSO CORPORATIONInventor: Yoshitaka HAYASHI
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Publication number: 20110143075Abstract: To provide a sputtering target for preparing a recordable optical recording medium characterized by comprising Bi and B and a manufacturing method thereof, a recordable high density optical recording medium using the sputtering target, and a sputtering target which is capable of improving a speed of the film formation for the improvement of productivity, which has a high intensity at the time of the film formation and which has a heightened packing density.Type: ApplicationFiled: December 17, 2010Publication date: June 16, 2011Applicant: RICOH COMPANY, LTD.Inventors: Yoshitaka Hayashi, Noboru Sasa, Toshishige Fujii, Masayuki Fujiwara, Hiroshi Miura, Masaki Kato, Takeshi Kibe, Shinya Narumi
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Patent number: 7897535Abstract: To provide a sputtering target for preparing a recordable optical recording medium characterized by comprising Bi and B and a manufacturing method thereof, a recordable high density optical recording medium using the sputtering target, and a sputtering target which is capable of improving a speed of the film formation for the improvement of productivity, which has a high intensity at the time of the film formation and which has a heightened packing density.Type: GrantFiled: March 1, 2007Date of Patent: March 1, 2011Assignee: Ricoh Company, Ltd.Inventors: Yoshitaka Hayashi, Noboru Sasa, Toshishige Fujii, Masayuki Fujiwara, Hiroshi Miura, Masaki Kato, Takeshi Kibe, Shinya Narumi