Patents by Inventor Hitoshi Matsumoto
Hitoshi Matsumoto 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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Patent number: 9994943Abstract: Rolled steel bar for hot forging consisting, by mass percent, of C: 0.25-0.50%, Si: 0.40-1.0%, Mn: 1.0-1.6%, S: 0.005-0.035%, Al: 0.005-0.050%, V: 0.10-0.30%, N: 0.005-0.030% with the balance being Fe and impurities, i.e., P: 0.035% or less and O: 0.0030% or less, wherein Fn1=C+Si/10+Mn/5+5Cr/22+1.65V?5S/7 is 0.90 to 1.20. The predicted maximum width of nonmetallic inclusions at the time when a cumulative distribution function obtained by extreme value statistical processing by taking the width of nonmetallic inclusion in an R1/2 part of a longitudinal cross section of the steel bar as W (mm) is 99.99% is 100 ?m or narrower. The number density of sulfides each having a circle-equivalent diameter of 0.3 to 1.0 ?m observed per unit area of the R1/2 part of a transverse cross section of the steel bar is 500 pieces/mm2 or higher.Type: GrantFiled: July 11, 2017Date of Patent: June 12, 2018Assignees: NIPPON STEEL & SUMITOMO METAL CORPORATION, DENSO CORPORATIONInventors: Naoki Matsui, Masashi Higashida, Hitoshi Matsumoto, Yutaka Neishi, Taizo Makino, Kouji Morita, Yoshihiro Tanimura, Naoyuki Sashima, Toshimasa Itou
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Patent number: 9976206Abstract: A rolled round steel material contains C: 0.38 to 0.55%, Si: 1.0% or less, Mn: 0.20 to 2.0%, S: 0.005 to 0.10%, Cr: 0.01 to 2.0%, Al: 0.003 to 0.10%, B: 0.0005 to 0.0030%, Ti: 0.047% or less, Cu: 0 to 1.0%, Ni: 0 to 3.0%, Mo: 0 to 0.50%, Nb: 0 to 0.10%, V: 0 to 0.30%, Ca: 0 to 0.005%, and Pb: 0 to 0.30%, a remaining portion being constituted by Fe and an impurities, the impurities containing P in an amount of 0.030% or less and N in an amount of 0.008% or less, and has a chemical composition satisfying [3.4N?Ti?3.4N+0.02]. The microstructure is constituted by ferrite (F), lamellar pearlite (LP), and cementite (C) and microstructural features vary in terms of the lateral, longitudinal and central portions of the steel. This steel material has a high base material toughness and good machinability without performing thermal refining.Type: GrantFiled: June 18, 2014Date of Patent: May 22, 2018Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Makoto Egashira, Sadanori Horikami, Masashi Higashida, Takahiro Okada, Yutaka Neishi, Tatsuya Hasegawa, Hitoshi Matsumoto
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Patent number: 9956950Abstract: Provided is a non-thermal refined soft-nitrided component including chemical composition of a steel material of a base metal containing: in mass %, C: 0.25 to 0.40%; Si: 0.10 to 0.35%; Mn: more than 2.0% to 2.8% or less; N: 0.0030 to 0.0250%; Cu: 0 to 1.0%; Mo: 0 to 0.3%; Ni: 0 to 0.5%; Ti: 0 to 0.020%; and a balance being Fe and impurities, the impurities including P: 0.08% or less; S: 0.10% or less; Al: 0.05% or less; and Cr: less than 0.20%, wherein a Vickers hardness at a position of 0.05 mm from the surface is 400 to 480, a Vickers hardness at a position of 1.0 mm from the surface is 200 or more, and a compound-layer depth at a stress concentrated region is 5 ?m or less. This non-thermal refined soft-nitrided component has an excellent bending straightening property and a high fatigue strength.Type: GrantFiled: December 13, 2013Date of Patent: May 1, 2018Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Shigefumi Nishitani, Motoki Takasuga, Hitoshi Matsumoto, Tatsuya Hasegawa, Masato Yuya
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Patent number: 9951403Abstract: A rolled steel bar for hot forging consisting, by mass percent, of C: 0.25-0.50%, Si: 0.40-1.0%, Mn: 1.0-1.6%, S: 0.005-0.035%, Al: 0.005-0.050%, V: 0.10-0.30%, and N: 0.005-0.030%, and the balance of Fe and impurities, i.e., P: 0.035% or less and O: 0.0030% or less, wherein Fn1=C+Si/10+Mn/5+5Cr/22+1.65V?5S/7 is 0.90 to 1.20. The predicted maximum width of nonmetallic inclusions at the time when a cumulative distribution function obtained by extreme value statistical processing by taking the width of nonmetallic inclusion in an R1/2 part of a longitudinal cross section of the steel bar as W (?m) is 99.99% is 100 ?m or narrower. The number density of sulfides each having a circle-equivalent diameter of 0.3 to 1.0 ?m observed per unit area of the R1/2 part of a transverse cross section of the steel bar is 500 pieces/mm2 or higher.Type: GrantFiled: February 5, 2013Date of Patent: April 24, 2018Assignees: NIPPON STEEL & SUMITOMO METAL CORPORATION, DENSO CORPORATIONInventors: Naoki Matsui, Masashi Higashida, Hitoshi Matsumoto, Yutaka Neishi, Taizo Makino, Kouji Morita, Yoshihiro Tanimura, Naoyuki Sashima, Toshimasa Itou
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Patent number: 9934282Abstract: A cooking recipe information provision device including a recipe name obtaining unit for obtaining a recipe name input by a user; a recipe extraction unit for extracting a plurality of recipes, based on the recipe name obtained from a recipe information database for storing a plurality of recipes, ingredients used in the respective recipes, and amounts of the respective ingredients so as to be correlated to each other; and a display data generation unit for extracting a recipe, based on the amount of the main ingredient, from among the plurality of recipes extracted, and generating display data indicating information on the extracted recipe.Type: GrantFiled: November 6, 2013Date of Patent: April 3, 2018Assignee: Rakuten, Inc.Inventors: Yuki Uchida, Koichi Suto, Hitoshi Matsumoto, Kazutoshi Ando
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Publication number: 20180073111Abstract: A cold forged part having a high cold forgeability and having a high endurance ratio due to work hardening by cold forging and age-hardening after cold forging, characterized by having a predetermined chemical composition, having an amount of solute Nb/amount of solute V of 0.03 or more and having a structure, by area ratio, of ferrite of 85% or more and a total of bainite and martensite of 5% or less.Type: ApplicationFiled: March 30, 2016Publication date: March 15, 2018Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Tomohiro YAMASHITA, Yutaka NEISHI, Hitoshi MATSUMOTO, Makoto EGASHIRA
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Publication number: 20180057917Abstract: A rolled steel bar for hot forging consisting, by mass percent, of C: 0.25-0.50%, Si: 0.40-1.0%, Mn: 1.0-1.6%, S: 0.005-0.035%, Al: 0.005-0.050%, V: 0.10-0.30%, and N: 0.005-0.030%, and the balance of Fe and impurities, i.e., P: 0.035% or less and O: 0.0030% or less, wherein Fn1=C+Si/10+Mn/5+5Cr/22+1.65V?5S/7 is 0.90 to 1.20. The predicted maximum width of nonmetallic inclusions at the time when a cumulative distribution function obtained by extreme value statistical processing by taking the width of nonmetallic inclusion in an R1/2 part of a longitudinal cross section of the steel bar as W (mm) is 99.99% is 100 mm or narrower. The number density of sulfides each having a circle-equivalent diameter of 0.3 to 1.0 mm observed per unit area of the R1/2 part of a transverse cross section of the steel bar is 500 pieces/mm2 or higher.Type: ApplicationFiled: July 11, 2017Publication date: March 1, 2018Inventors: Naoki MATSUI, Masashi HIGASHIDA, Hitoshi MATSUMOTO, Yutaka NEISHI, Taizo MAKINO, Kouji MORITA, Yoshihiro TANIMURA, Naoyuki SASHIMA, Toshimasa ITOU
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Publication number: 20180044757Abstract: Age hardening steel excellent in machinability before aging treatment and excellent in fatigue characteristics, toughness, and low cycle fatigue characteristics after aging treatment, that is, age hardening steel containing predetermined amounts of C, Si, Mn, S, Cr, Al, V, Nb, Ca, and REM, limiting contents of P, Ti, and N to predetermined amounts or less, having a balance of Fe and impurities, having an area ratio of bainite structures of 70% or more, and, furthermore, having a chemical composition where F1 expressed by C+0.3×Mn+0.25×Cr is 0.68 or more, F2 expressed by C+0.1×Si+0.2×Mn+0.15×Cr+0.35×V is 0.85 or less, F3 expressed by ?4.5×C+Mn+Cr?3.5×V is 0.00 or more, and F4 expressed by 10×Ca+REM is 0.012 to 0.08, is provided. Note that, the symbols of elements in the formulas showing F1 to F4 mean the contents by mass % of those elements.Type: ApplicationFiled: March 17, 2016Publication date: February 15, 2018Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Yutaka NEISHI, Masato YUYA, Tatsuya HASEGAWA, Motoki TAKASUGA, Masashi HIGASHIDA, Hitoshi MATSUMOTO, Taizo MAKINO
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Patent number: 9886022Abstract: A numerical control device includes a phase-difference calculation unit that, when machining with vibrations is performed on a movement path, calculates a phase difference between a vibrational forward-moving position and a vibrational backward-moving position from a vibration amplitude-to-feed ratio between amplitude of the vibrations and a feed speed of a tool to a workpiece, a movement-path generation unit generating the vibrational forward-moving position and the vibrational backward-moving position as the movement path for each drive shaft by using the phase difference, a vibration-waveform generation unit generating a reference vibration waveform to be superimposed on the movement path for each drive shaft by using vibration conditions, a vibrational-movement-amount generation unit calculating a vibrational-movement amount on the movement path for each drive shaft by using the reference vibration waveform, and a movement-amount combining unit generating a combined movement amount for each drive shaft byType: GrantFiled: April 23, 2014Date of Patent: February 6, 2018Assignees: Mitsubishi Electric Corporation, CITIZEN WATCH CO., LTD., CITIZEN MACHINERY CO., LTD.Inventors: Mitsuo Watanabe, Masakazu Sagasaki, Yuki Hirata, Hitoshi Matsumoto
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Patent number: 9840759Abstract: A rolled round steel material for a steering rack bar, having a chemical composition consisting of C: 0.38 to 0.55%, Si: not more than 1.0%, Mn: 0.20 to 2.0%, S: 0.005 to 0.10%, Cr: 0.01 to 2.0%, Al: 0.003 to 0.10%, and N: 0.003 to 0.03%, with the balance being Fe and impurities, and P being not more than 0.030% in the impurities, and a microstructure consisting of ferrite (F), lamellar pearlite (LP), and cementite (C). The average grain diameter of (F), an area fraction of (LP), and the number of particles of spheroidal cementite (SC) among C are controlled in a region from the surface to a position at ½ radius and in a central part of the material. An average aspect ratio of F is controlled in a region from a surface to a position at ½ radius.Type: GrantFiled: February 10, 2014Date of Patent: December 12, 2017Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Sadanori Horikami, Masashi Higashida, Takahiro Okada, Makoto Egashira, Yutaka Neishi, Tatsuya Hasegawa, Hitoshi Matsumoto
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Publication number: 20170341409Abstract: Provided is a liquid injecting apparatus equipped with a liquid injecting head, which is mounted on a carriage and moved reciprocally in a widthwise direction of a target, and a valve unit, which is mounted on the carriage to be supplied with liquid via a supply passage from a liquid retainer and to supply liquid to the liquid injecting head. The valve unit has a pressure chamber connected to the liquid retainer via the supply passage; a valve, which opens or closes the supply passage to supply liquid to the pressure chamber; and a flexible film member, which is displaced based on a negative pressure generated as liquid in the pressure chamber decreases to thereby operate the valve.Type: ApplicationFiled: August 15, 2017Publication date: November 30, 2017Applicant: SEIKO EPSON CORPORATIONInventors: Yoshiharu ARUGA, Toshio KUMAGAI, Hitoshi MATSUMOTO
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Publication number: 20170322538Abstract: A numerical control device is for machining a machining object by moving a tool and the machining object relative to each other along a movement path while applying vibration, by use of a drive axis provided for the tool or the machining object. The device includes a storage unit that holds an invalid frequency region, and a vibration condition determining unit to determine a frequency for the vibration, based on a rotational speed of a main shaft for rotating the machining object, a number of vibrations of the vibration in each one rotation of the main shaft, and the invalid frequency region.Type: ApplicationFiled: November 26, 2014Publication date: November 9, 2017Applicants: Mitsubishi Electric Corporation, CITIZEN WATCH CO., LTD., CITIZEN MACHINERY CO., LTD.Inventors: Mitsuo WATANABE, Masakazu SAGASAKI, Hitoshi MATSUMOTO, Takanori SHINOHARA, Kazuhiko SANNOMIYA, Yuki HIRATA
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Patent number: 9811593Abstract: A cooking recipe information providing device includes: a recipe extracting unit (16) for extracting a prescribed cooking recipe from a recipe information DB (14a) for storing cooking recipes; an evaluation value determining unit (18) for determining an evaluation value of the cooking recipe extracted by the recipe extracting unit (16) based on a place in order of a given ingredient in an ingredient field where ingredients of the cooking recipe are displayed; and a display data generating unit (19) for generating display data which indicates information of the cooking recipe based on the evaluation value determined by the evaluation value determining unit (18).Type: GrantFiled: April 30, 2013Date of Patent: November 7, 2017Assignee: Rakuten, Inc.Inventors: Yuki Uchida, Koichi Suto, Hitoshi Matsumoto, Kazutoshi Ando
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Patent number: 9791846Abstract: To include an analysis processing unit that obtains a movement command for moving on a movement path in a machining program, and vibration conditions for vibrating along the movement path, a command-movement-amount calculation unit that calculates a command-movement amount per unit time, a vibrational-movement-amount calculation unit that uses the vibration conditions to calculate a vibrational-movement amount per unit time at a time corresponding to the movement command, and a movement-amount combining unit that combines the command-movement amount with the vibrational-movement amount to calculate a combined movement amount, and that acquires a movement amount within the unit time such that a position, which has moved from a reference position for calculating the combined movement amount by the combined movement amount, is located on the movement path.Type: GrantFiled: February 12, 2013Date of Patent: October 17, 2017Assignees: Mitsubishi Electric Corporation, CITIZEN WATCH CO., LTD., CITIZEN MACHINERY CO., LTD.Inventors: Mitsuo Watanabe, Masakazu Sagasaki, Junichi Kamata, Hiroshi Shinohara, Hajime Matsumaru, Hitoshi Matsumoto, Takanori Shinohara, Akihiko Shinohara, Shigeo Yanagidaira
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Publication number: 20170293288Abstract: A control device for a machine tool to produce a plurality of different-shaped products efficiently and successively is provided. In the control device, each driving shaft of modules is assigned to different control systems.Type: ApplicationFiled: October 5, 2015Publication date: October 12, 2017Inventors: Takaichi NAKAYA, Hitoshi MATSUMOTO
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Patent number: 9770917Abstract: Provided is a liquid injecting apparatus equipped with a liquid injecting head, which is mounted on a carriage and moved reciprocally in a widthwise direction of a target, and a valve unit, which is mounted on the carriage to be supplied with liquid via a supply passage from a liquid retainer and to supply liquid to the liquid injecting head. The valve unit has a pressure chamber connected to the liquid retainer via the supply passage; a valve, which opens or closes the supply passage to supply liquid to the pressure chamber; and a flexible film member, which is displaced based on a negative pressure generated as liquid in the pressure chamber decreases to thereby operate the valve.Type: GrantFiled: February 17, 2017Date of Patent: September 26, 2017Assignee: SEIKO EPSON CORPORATIONInventors: Yoshiharu Aruga, Toshio Kumagai, Hitoshi Matsumoto
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Publication number: 20170253039Abstract: A piezoelectric device includes a piezoelectric layer, a first moisture resistant layer, and a second moisture resistant layer stacked in this order. The first moisture resistant layer has a flexibility higher than that of the second moisture resistant layer, and the second moisture resistant layer has a moisture permeability lower than that of the first moisture resistant layer.Type: ApplicationFiled: February 27, 2017Publication date: September 7, 2017Inventors: Satoshi KIMURA, Hitoshi MATSUMOTO
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Publication number: 20170246718Abstract: In a machine tool and a control apparatus thereof, a repetitive movement unit is configured so that the cutting tool performs one repetitive movement with respect to multiple relative rotations between the workpiece and the cutting tool and so that a rotation angle of the relative rotation between the workpiece and the cutting tool during relative movement at a second speed is smaller than a rotation angle of the relative rotation during relative movement at a first speed in one repetitive movement. This configuration limits degradation of machining efficiency when the cutting tool machines the workpiece by performing one repetitive movement with respect to multiple relative rotations between the workpiece and the cutting tool.Type: ApplicationFiled: August 27, 2015Publication date: August 31, 2017Inventors: Kazuhiko Sannomiya, Hitoshi Matsumoto, Nobuyoshi Imasaki
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Publication number: 20170220091Abstract: The present invention provides a power-supply management device which can efficiently connect and disconnect power supply to an electric-powered section, and a machine tool including the power-supply management device. The power-supply management device (101) detects a synchronization command of a control program, and compares an operation time of the electric-powered section between synchronizations in each control system which is a synchronization target by the synchronization command on the basis of the detected synchronization command. Then, the power-supply management device (101) disconnects the power supply to the electric-powered section belonging to the control system except the control system having the maximum operation time of the electric-powered section between the synchronizations, and restarts the power supply at the end of the synchronization in each control system.Type: ApplicationFiled: April 3, 2017Publication date: August 3, 2017Inventors: Hajime Matsumaru, Satoru Akimoto, Hitoshi Matsumoto, Yutaka Shibui, Umeo Tsuyusaki, Hiroshi Shinohara, Shigeo Yanagidaira
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Patent number: 9703282Abstract: A portable manipulation command input device, including a sub-console panel attachable to and removable from an automatic lathe apparatus main unit, and includes an input unit to receive input of a manipulation command to the automatic lathe apparatus main unit, a display unit to display information on the automatic lathe apparatus main unit, and a radio communication unit to communicate with the automatic lathe apparatus main unit. The sub-console panel includes a detection unit and a control unit formed with the automatic lathe apparatus main unit. The detection unit includes a radio ID tag and a radio ID reader detecting the sub-console panel being placed within a predetermined range of the automatic lathe apparatus main unit. Depending on a detection result by the detection unit, the control unit allows or restricts manipulations of the automatic lathe apparatus main unit, and allows display of the information even when restricting the manipulations.Type: GrantFiled: October 3, 2013Date of Patent: July 11, 2017Assignees: CITIZEN HOLDINGS CO., LTD., CITIZEN MACHINERY CO., LTD., MITSUBISHI ELECTRIC CORPORATIONInventors: Shigeo Yanagidaira, Takaichi Nakaya, Hitoshi Matsumoto, Kazuhiko Sannomiya, Shoji Oda