Patents by Inventor Katsuhiro Yamada
Katsuhiro 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: 20240138801Abstract: A radiation imaging system includes a radiation imaging apparatus configured to transmit, based on electric charge generated in response to irradiation with radiation and a target value, a signal related to control of irradiation with radiation to an external apparatus; and a control apparatus configured to generate a target dose index value that is based on the target value and a dose index value that is based on information regarding electric charge, and determine whether the dose index value is within an allowable range of the target dose index value.Type: ApplicationFiled: October 24, 2023Publication date: May 2, 2024Inventors: KATSUHIRO NISHIJIMA, DAISUKE YAMADA, KAZUMA OBARA
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Publication number: 20240120817Abstract: A permanent magnet-type rotary electric machine includes a stator, a first rotor, and a second rotor. The stator includes a stator core, a plurality of stator teeth, a plurality of stator slots, a plurality of stator magnets, and a stator coil. The first rotor is disposed inside the stator core relative to the plurality of stator magnets. The second rotor is disposed inside the stator core relative to a plurality of first pole pieces. The second rotor includes a plurality of second pole pieces. A proportion of the number of the plurality of stator slots to the number of poles of the plurality of second pole pieces of the second rotor is greater than 1.25 and less than 1.5, or greater than 1.5 and less than 3.0.Type: ApplicationFiled: December 23, 2020Publication date: April 11, 2024Applicants: Mitsubishi Electric Corporation, OSAKA UNIVERSITYInventors: Haruyuki KOMETANI, Ryoji MIYATAKE, Takuro YAMADA, Kenji TANAKA, Katsuhiro HIRATA, Noboru NIGUCHI, Kazuaki TAKAHARA, Hironori SUZUKI, Takuya ITO
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Patent number: 10655544Abstract: An engine comprising: a fuel injection device including a rack and an actuator, the rack being configured to regulate the amount of fuel injected to a combustion chamber, the actuator being configured to control the position of the rack; and a control device that controls fuel injection performed by the fuel injection device based on an instructed revolution number, and that performs a dither control on the actuator, wherein the control device has information of a revolution number variation region that is based on the relationship between a dither frequency in the dither control and an engine revolution number, and upon determining that the instructed revolution number is within the revolution number variation region, changes at least one of the dither frequency and the instructed revolution number. Thus, an engine capable of reducing a periodic variation in engine speed which may be caused by a dither control is provided.Type: GrantFiled: October 5, 2016Date of Patent: May 19, 2020Assignee: YANMAR CO., LTD.Inventors: Katsuhiro Yamada, Atsushi Uehara
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Patent number: 10561311Abstract: An ophthalmic imaging apparatus according to an exemplary embodiment includes a three dimensional data generator, an analyzer, and a display controller. The three dimensional data generator generates three dimensional data by scanning a three dimensional region of a subject's eye using optical coherence tomography (OCT). The analyzer generates a plurality of analysis maps by analyzing a plurality of pieces of partial three dimensional data in the three dimensional data. The display controller displays the plurality of analysis maps over a front image of the subject's eye on a display device.Type: GrantFiled: October 12, 2016Date of Patent: February 18, 2020Assignee: Topcon CorporationInventors: Takaki Tokuyama, Katsuhiro Yamada
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Publication number: 20180303334Abstract: An ophthalmic imaging apparatus according to an exemplary embodiment includes a three dimensional data generator, an analyzer, and a display controller. The three dimensional data generator generates three dimensional data by scanning a three dimensional region of a subject's eye using optical coherence tomography (OCT). The analyzer generates a plurality of analysis maps by analyzing a plurality of pieces of partial three dimensional data in the three dimensional data. The display controller displays the plurality of analysis maps over a front image of the subject's eye on a display device.Type: ApplicationFiled: October 12, 2016Publication date: October 25, 2018Applicant: Topcon CorporationInventors: Takaki TOKUYAMA, Katsuhiro YAMADA
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Publication number: 20180291821Abstract: An engine comprising: a fuel injection device including a rack and an actuator, the rack being configured to regulate the amount of fuel injected to a combustion chamber, the actuator being configured to control the position of the rack; and a control device that controls fuel injection performed by the fuel injection device based on an instructed revolution number, and that performs a dither control on the actuator, wherein the control device has information of a revolution number variation region that is based on the relationship between a dither frequency in the dither control and an engine revolution number, and upon determining that the instructed revolution number is within the revolution number variation region, changes at least one of the dither frequency and the instructed revolution number. Thus, an engine capable of reducing a periodic variation in engine speed which may be caused by a dither control is provided.Type: ApplicationFiled: October 5, 2016Publication date: October 11, 2018Applicant: Yanmar Co., Ltd.Inventors: Katsuhiro YAMADA, Atsushi UEHARA
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Patent number: 9944336Abstract: A part installation machine, when having entered a part installation work area, operates a separation/coupling device to bring a drive carriage section and a part mounting carriage section from a coupled state into a separated state. The part installation machine also operates an engagement device such that the part mounting carriage section is engaged with a transfer system and transported by the transfer system. In this state, the part installation machine controls a travelling speed of the drive carriage section such that a relative position detected by a relative position detection device is maintained within a predetermined range.Type: GrantFiled: May 18, 2015Date of Patent: April 17, 2018Assignee: MAZDA MOTOR CORPORATIONInventors: Masaki Ogawa, Shimpei Nagata, YingChuan Chen, Akira Okamoto, Masato Nishimura, Akira Sekiraku, Naruyuki Suzuki, Masaru Tanaka, Katsuhiro Yamada, Takayuki Kamimoto, Tatsuyoshi Nishihara, Shouji Kusuda
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Publication number: 20160214668Abstract: A part installation machine, when having entered a part installation work area, operates a separation/coupling device to bring a drive carriage section and a part mounting carriage section from a coupled state into a separated state. The part installation machine also operates an engagement device such that the part mounting carriage section is engaged with a transfer system and transported by the transfer system. In this state, the part installation machine controls a travelling speed of the drive carriage section such that a relative position detected by a relative position detection device is maintained within a predetermined range.Type: ApplicationFiled: May 18, 2015Publication date: July 28, 2016Applicant: MAZDA MOTOR CORPORATIONInventors: Masaki OGAWA, Shimpei NAGATA, YingChuan CHEN, Akira OKAMOTO, Masato NISHIMURA, Akira SEKIRAKU, Naruyuki SUZUKI, Masaru TANAKA, Katsuhiro YAMADA, Takayuki KAMIMOTO, Tatsuyoshi NISHIHARA, Shouji KUSUDA
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Patent number: 8986422Abstract: A method for producing nickel nanoparticles is described, including a first step of heating a mixture of a nickel carboxylate with 1-12 carbon atoms in its moiety excluding —COOH and a primary amine to obtain a complexed reaction solution with a nickel complex foiiiied therein, and a second step of heating the complexed reaction solution by a microwave to obtain a Ni-nanoparticle slurry. In the first step, the heating is preferably conducted at a temperature of 105-175° C. for 15 minutes or longer. In the second step, the heating is preferably conducted at a temperature of 180° C. or higher.Type: GrantFiled: March 17, 2011Date of Patent: March 24, 2015Assignees: Nippon Steel & Sumikin Chemical Co., Ltd., Osaka University, Iwatani CorporationInventors: Katsuhiro Yamada, Shuji Inoue, Hiderou Nomoto, Tomohisa Yamauchi, Yuji Wada, Yasunori Tsukahara
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Patent number: 8724870Abstract: An ophthalmic observation apparatus 1 performs an OCT measurement of a fundus Ef to form an OCT image, performs an analytical processing on this OCT image, and outputs examination-results information including the analysis results. The ophthalmic observation apparatus 1 is capable of selectively executing a plurality of operation modes. The ophthalmic observation apparatus 1 preliminarily stores operation mode information 214, in which various operational details are associated with each operation mode. When one operation mode is designated, the ophthalmic observation apparatus 1 refers to the operation mode information 214 to identify the operational details associated with this operation mode, and controls an optical system, an image forming part 220, a three-dimensional image forming part 231, an analytic processor 232, a display 240, and/or a printer 300, etc. based on the identified operational details.Type: GrantFiled: July 14, 2010Date of Patent: May 13, 2014Assignee: Kabushiki Kaisha-TopconInventors: Akihiko Sekine, Nobusuke Obata, Katsuhiro Yamada
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Publication number: 20140078466Abstract: A control method of an ophthalmic observation apparatus that comprises an analysis means that analyze an image of an eye formed by using OCT, comprising: storing operation mode information in which an operation mode is associated with operational details of at least the analysis means; identifying the operational details associated with the operation mode by referring to the stored operation mode information; and controlling at least the analysis means based on the identified operational details. The analysis means can execute multiple analytic processings including layer-thickness analysis and/or lesion identification analysis. In the operation mode information, the operation mode is associated with at least one of the multiple analytic processings. In the identifying step, the analytic processing that is associated with the operation mode is identified by referring to the operation mode information. In the controlling step, the identified analytic processing is executed by controlling the analysis means.Type: ApplicationFiled: November 21, 2013Publication date: March 20, 2014Applicant: KABUSHIKI KAISHA TOPCONInventors: Akihiko SEKINE, Nobusuke OBATA, Katsuhiro YAMADA
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Patent number: 8420741Abstract: An ethylene based polymer composition comprising the following component (A) and the following component (B) wherein the content of the component (B) is 0.1 to 20 parts by weight per 100 parts by weight of the component (A): Component (A): an ethylene-?-olefin copolymer satisfying all of the following requirements (a1) to (a3): (a1) the density is 890 to 925 kg/m3, (a2) the melt flow rate (MFR) is 0.1 to 10 g/10 minutes, (a3) the flow activation energy (Ea) is less than 50 kJ/mol, Component (B): an ethylene-?-olefin copolymer satisfying all of the following requirements (b1) to (b3): (b1) the density is 890 to 925 kg/m3, (b2) the intrinsic viscosity [?] measured in a tetralin solution is 4 to 15 dL/g, (b3) the flow activation energy (Ea) is less than 50 kJ/mol.Type: GrantFiled: May 15, 2008Date of Patent: April 16, 2013Assignee: Sumitomo Chemical Company, LimitedInventors: Yoshinobu Nozue, Yasutoyo Kawashima, Katsuhiro Yamada
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Publication number: 20130008286Abstract: A method for producing nickel nanoparticles is described, including a first step of heating a mixture of a nickel carboxylate with 1-12 carbon atoms in its moiety excluding —COOH and a primary amine to obtain a complexed reaction solution with a nickel complex foiiiied therein, and a second step of heating the complexed reaction solution by a microwave to obtain a Ni-nanoparticle slurry. In the first step, the heating is preferably conducted at a temperature of 105-175° C. for 15 minutes or longer. In the second step, the heating is preferably conducted at a temperature of 180° C. or higher.Type: ApplicationFiled: March 17, 2011Publication date: January 10, 2013Applicants: NIPPON STEEL CHEMICAL CO., LTD., IWATANI CORPORATION, OSAKA UNIVERSITYInventors: Katsuhiro Yamada, Shuji Inoue, Hiderou Nomoto, Tomohisa Yamauchi, Yuji Wada, Yasunori Tsukahara
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Patent number: 8344037Abstract: A resin composition for cross-linking foam molding having a polymer composition which comprises 100 parts by weight of the following component (A) and 0.5 to 20 parts by weight of the following component (B); a foaming agent; and a cross-linking agent, wherein the component (A) is an ethylene-based polymer satisfying the following conditions (a1) to (a2): (a1) the density is 860 to 935 kg/m3, and (a2) the melt flow rate (MFR) is 0.1 to 10 g/10 minutes, and the component (B) is an ethylene-?-olefin copolymer satisfying the following conditions (b1) to (b3): (b1) the density is 890 to 925 kg/m3, (b2) the intrinsic viscosity [?] determined in a tetralin solution is 4 to 15 dL/g, and (b3) the activation energy of flow (Ea) is less than 50 kJ/mol.Type: GrantFiled: August 27, 2009Date of Patent: January 1, 2013Assignee: Sumitomo Chemical Company, LimitedInventors: Katsuhiro Yamada, Yoshinobu Nozue
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Patent number: 8188189Abstract: A resin composition, comprising (a) 50 to 99% by weight of a crystalline polypropylene resin, and (b) 1 to 50% by weight of a propylene copolymer comprising 50 to 85% by mol of a propylene unit and 15 to 50% by mol of a C8-12 ?-olefin unit, the propylene copolymer having (1) no meting point in a range of ?100 to 200° C., or a melting point of 50° C. or lower in that temperature range, (2) an isotactic selectivity of 90% or higher, (3) a molecular weight distribution of 3 or smaller, and (4) an intrinsic viscosity of 0.1 to 10 dl/g.Type: GrantFiled: April 14, 2009Date of Patent: May 29, 2012Assignee: Sumitomo Chemical Company, LimitedInventors: Kenji Sogoh, Katsuhiro Yamada, Hisakatsu Hama, Masaaki Tsutsubuchi
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Publication number: 20120121158Abstract: An ophthalmic observation apparatus 1 performs an OCT measurement of a fundus Ef to form an OCT image, performs an analytical processing on this OCT image, and outputs examination-results information including the analysis results. The ophthalmic observation apparatus 1 is capable of selectively executing a plurality of operation modes. The ophthalmic observation apparatus 1 preliminarily stores operation mode information 214, in which various operational details are associated with each operation mode. When one operation mode is designated, the ophthalmic observation apparatus 1 refers to the operation mode information 214 to identify the operational details associated with this operation mode, and controls an optical system, an image forming part 220, a three-dimensional image forming part 231, an analytic processor 232, a display 240, and/or a printer 300, etc. based on the identified operational details.Type: ApplicationFiled: July 14, 2010Publication date: May 17, 2012Applicant: KABUSHIKI KAISHA TOPCONInventors: Akihiko Sekine, Nobusuke Obata, Katsuhiro Yamada
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Publication number: 20120123006Abstract: Disclosed is a resin composition for crosslinking/foam molding which comprises a resin ingredient, a blowing agent, and a crosslinking agent, wherein the resin ingredient is an ethylene/?-olefin copolymer that comprises monomer units based on ethylene and monomer units based on an ?-olefin having 3 to 20 carbon atoms and satisfies all of the following: (1) to have a density of 860-950 kg/m3, (2) to have a melt flow rate (MFR) of 0.01-10 g/10 min, (3) to have a ratio of weight-average molecular weight (Mw) to number-average molecular weight (Mn), Mw/Mn, of 5.5-30, (4) to have a ratio of Z-average molecular weight (Mz) to weight-average molecular weight (Mw), Mz/Mw, of 2-4, and (5) to have a melt tension (MT) of 8 cN or higher.Type: ApplicationFiled: May 25, 2010Publication date: May 17, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Katsuhiro Yamada, Yoshinobu Nozue
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Patent number: 8121522Abstract: A transfer apparatus of the invention includes a primary transfer unit, and a secondary transfer unit that includes a transfer roller having a bearing and being capable of contacting with and separating from the primary transfer unit, the primary transfer unit includes a guide member receiving the bearing at a position opposite to the bearing, and the guide member has a protrusion on a surface with which the bearing contacts when the transfer roller contacts with and separates from the primary transfer unit.Type: GrantFiled: February 4, 2009Date of Patent: February 21, 2012Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventor: Katsuhiro Yamada
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Patent number: 8039523Abstract: A resin composition for pressure-foam molding, which comprises an ethylene-based copolymer and a foaming agent, wherein the ethylene-based copolymer has monomer units derived from ethylene and monomer units derived from an a-olefin having 3 to 20 carbon atoms, has a melt flow rate of 0.01 to 0.7 g/10 minutes, a molecular weight distribution of 5 or more determined by a gel permeation chromatography, an activation energy of flow of 40 kJ/mol or more, and inflection points of 3 or less on a melting curve within temperature range from 25° C. to the end point of melting obtained by a differential scanning calorimetry; a foam obtained by press foaming; and a process for producing the foam.Type: GrantFiled: September 24, 2007Date of Patent: October 18, 2011Assignee: Sumitomo Chemical Company, LimitedInventors: Katsuhiro Yamada, Tatsuhiro Nagamatsu
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Patent number: 8039554Abstract: An ethylene-?-olefin copolymer having monomer units derived from ethylene and monomer units derived from an ?-olefin of 3 to 20 carbon atoms, a melt flow rate (MFR) of 0.01 to 4 g/10 minutes, a density of 890 to 970 kg/m3, an activation energy of flow of 50 kJ/mol or more and a molecular weight distribution measured by gel permeation chromatography of 3 or more, wherein a characteristic relaxation time (?) determined by a melt viscoelasticity measurement or an external haze ratio (EHR) satisfies a relationship of the following formula (1) or (2), respectively: 3×MFR?0.75+1.1>?>1.3×MFR?0.5+1.4??(1) EHR??15×log MFR+0.Type: GrantFiled: September 28, 2006Date of Patent: October 18, 2011Assignee: Sumitomo Chemical Company, LimitedInventors: Yuki Iseki, Katsuhiro Yamada, Yasutoyo Kawashima, Yoshinobu Nozue