Patents by Inventor Naoki Kikuchi
Naoki Kikuchi 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: 11293069Abstract: In a method for oxygen-blowing refining of molten iron, an oxygen-containing gas as a main supply gas is supplied from an inlet side of a blowing nozzle for the oxygen-containing gas passing through an outer shell of the top-blowing lance and blown from the blowing nozzle while a control gas is jetted toward inside of the blowing nozzle for at least part of a period of the oxygen-blowing refining from a spout arranged in a side face of the nozzle at a site where the cross-sectional area of the nozzle minimum takes the minimum in the axial direction of the nozzle or a neighborhood thereof so that at least part of the spout exists in each space formed by dividing into two portions by an arbitrary plane passing through a central axis of the nozzle.Type: GrantFiled: November 8, 2018Date of Patent: April 5, 2022Assignee: JFE Steel CorporationInventors: Nobuhiko Oda, Goro Okuyama, Shota Amano, Kenji Nakase, Yukio Takahashi, Yuta Hino, Naoki Kikuchi, Yuji Miki
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Publication number: 20210295074Abstract: An emotion estimation apparatus includes a recording section that records one or more events that cause a change in an emotion of a person and prediction information for predicting, for each event, an occurrence of the event; an event predicting section that predicts the occurrence of the event, based on detection of the prediction information; and a frequency setting section that sets a frequency with which an estimation of the emotion is performed. If the occurrence of the event is predicted by the event predicting section, the frequency setting section sets the frequency to be higher than in a case where the occurrence of the event is not predicted, and also sets the frequency based on the content of the event.Type: ApplicationFiled: June 9, 2021Publication date: September 23, 2021Inventors: Kenji OKUMA, Takashi OKADA, Kota SAITO, Seungho CHOI, Yoshikazu MATSUO, Naoki KIKUCHI, Katsuya IKENOBU
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Patent number: 11124849Abstract: When the decarburization refining of molten iron is performed by top-blowing oxygen gas from the top blowing lance, the oscillation of molten iron, a bubble burst, and spitting due to the bubble burst are suppressed. A refining method for a converter includes decarburizing molten iron in the converter with a top blowing lance having Laval nozzles disposed at the lower end thereof by blowing oxygen gas on the surface of the molten iron in the converter through the Laval nozzles, in which one or both of an oxygen feeding rate from the top blowing lance and lance height LH are adjusted in such a manner that an oxygen accumulation index S(F) is 40 or less.Type: GrantFiled: May 7, 2018Date of Patent: September 21, 2021Assignee: JFE STEEL CORPORATIONInventors: Shota Amano, Yukio Takahashi, Naoki Kikuchi, Yuji Miki
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Patent number: 11077492Abstract: In the continuous steel casting method of the present invention, a gap between strand support rolls with a strand in a rectangular shape interposed therebetween is increased toward a downstream side in a casting direction to thereby bulge the strand having an unsolidified layer thereinside such that the thickness between long-side surfaces of the strand increases within the range of 0.1% or more and 10% or less of the thickness of the strand inside a mold. A portion of the strand in which the solid phase fraction in a central portion of the strand is within the range of 0.2 or more and less than 0.9 satisfies a prescribed total rolling reduction and a prescribed reduction gradient, and a portion of the strand in which the solid phase fraction is within the range of 0.9 or more satisfies a prescribed total rolling reduction and a prescribed reduction gradient.Type: GrantFiled: February 25, 2019Date of Patent: August 3, 2021Assignee: JFE Steel CorporationInventors: Keigo Toishi, Yutaka Awajiya, Norichika Aramaki, Naoki Kikuchi
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Patent number: 11062159Abstract: An emotion estimation apparatus includes a recording section that records one or more events that cause a change in an emotion of a person and prediction information for predicting, for each event, an occurrence of the event; an event predicting section that predicts the occurrence of the event, based on detection of the prediction information; and a frequency setting section that sets a frequency with which an estimation of the emotion is performed. If the occurrence of the event is predicted by the event predicting section, the frequency setting section sets the frequency to be higher than in a case where the occurrence of the event is not predicted, and also sets the frequency based on the content of the event.Type: GrantFiled: October 28, 2019Date of Patent: July 13, 2021Assignee: Honda Motor Co., Ltd.Inventors: Kenji Okuma, Takashi Okada, Kota Saito, Seungho Choi, Yoshikazu Matsuo, Naoki Kikuchi, Katsuya Ikenobu
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Publication number: 20210193393Abstract: A film capacitor includes: a main body portion including a first metallized film including a first metal film on a first face of a first dielectric film, and a second metallized film including a second metal film on a second face of a second dielectric film; and external electrodes. The first or second dielectric film is located between the first and second metal films. The external electrodes are disposed on main body ends so as to be electrically connected with the first or second metal film. At least one of the first and second metal films includes a first portion which has a film thickness of 20 nm or more and is located in proximity to the main body ends, and the first portion includes a first groove extending in the first direction and being in contact with corresponding one of the main body ends.Type: ApplicationFiled: October 24, 2018Publication date: June 24, 2021Applicant: KYOCERA CorporationInventor: Naoki KIKUCHI
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Patent number: 10967425Abstract: A continuous steel casting method includes producing a strand. The producing of the strand includes pouring molten steel into a mold of a continuous casting machine and withdrawing a solidified shell from the mold, the solidified shell being a solidified portion of the molten steel. The method includes applying a static magnetic field to at least a portion of a region of the strand, the strand being in the continuous casting machine, the region being a region where a solid fraction fs at a thickness-wise middle position of the strand is in a given range, the static magnetic field having a magnetic field strength of greater than or equal to 0.15 T and being in a direction orthogonal to a direction in which the strand is withdrawn, the static magnetic field being applied at an application time ratio of greater than or equal to 10%.Type: GrantFiled: March 29, 2017Date of Patent: April 6, 2021Assignee: JFE Steel CorporationInventors: Tomoya Odagaki, Norichika Aramaki, Yuji Miki, Naoki Kikuchi
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Patent number: 10972716Abstract: A calibration method calibrates a stereo camera. The calibration method includes: measuring a relative position between the stereo camera and an object that is placed so as to fall within an image capturing area of the stereo camera; acquiring a captured image that is captured by the stereo camera and includes the object; and determining a calibration parameter for calibrating the stereo camera based on the relative position and the captured image.Type: GrantFiled: March 8, 2019Date of Patent: April 6, 2021Assignee: RICOH COMPANY, LIMITEDInventors: Shin Aoki, Naoki Kikuchi, Kagehiro Nagao, Jun Kishiwada
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Publication number: 20210071274Abstract: Proposed is a method for removing phosphorus from a phosphorus-containing substance which is applicable in an industrial scale so as to effectively reduce phosphorus contained in the phosphorus-containing substance. In this method, the phosphorus-containing substance used as a raw material for metal smelting or metal refining is reacted with a nitrogen-containing gas at a treatment temperature T (° C.) which is lower than a melting temperature (Tm) of the substance, so that phosphorus is removed preferably in the form of phosphorus nitride (PN). In this regard, a nitrogen partial pressure and an oxygen partial pressure in the nitrogen-containing gas are preferably controlled, thereby reducing a load of dephosphorization process, for example.Type: ApplicationFiled: December 12, 2018Publication date: March 11, 2021Applicant: JFE Steel CorporationInventors: Kenji Nakase, Yoshie Nakai, Naoki Kikuchi
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Publication number: 20210054479Abstract: A manufacturing method includes a first pulverization step of compressively pulverizing a manganese oxide-containing material containing at least manganese, calcium, silicon, iron, and phosphorus, which is used as a raw material, to form a composite in which a compound phase of nCaO.P2O5 is combined with at least one phase of a spinel phase and a calcium ferrite phase, which are ferromagnetic materials, and produce a first pulverized manganese oxide-containing material containing the composite; a first magnetic separation step of separating the first pulverized manganese oxide-containing material produced in the pulverization step into a magnetic substance and a non-magnetic substance under a magnetic force; and a step of recovering the non-magnetic substance separated in the first magnetic separation step as a manganese raw material.Type: ApplicationFiled: February 22, 2019Publication date: February 25, 2021Applicant: JFE STEEL CORPORATIONInventors: Nobuhiko ODA, Yuta HINO, Yuki TAKAKI, Yoshiaki NISHINA, Naoki KIKUCHI
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Patent number: 10923280Abstract: A film capacitor includes a main body portion and external electrodes. The main body portion includes a dielectric film and a metal film that is disposed on one surface of the dielectric film. The metal film has surface roughnesses of S1 and S2 where S1 denotes a surface roughness of the metal film in a first direction, and S2 denotes a surface roughness of the metal film in a second direction. The first direction is perpendicular to the second direction. S1 is greater than S2. The main body portion includes a pair of ends in the first direction thereof. The external electrodes are disposed on the pair of ends in the first direction of the main body portion, respectively. An average value of fractal dimensions of irregularity boundary lines due to wrinkles of the metal film is 1.08 or more.Type: GrantFiled: January 24, 2019Date of Patent: February 16, 2021Assignee: Kyocera CorporationInventors: Youichi Yamazaki, Naoki Kikuchi, Yoshihiro Nakao
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Publication number: 20200406342Abstract: In the continuous steel casting method of the present invention, a gap between strand support rolls with a strand in a rectangular shape interposed therebetween is increased toward a downstream side in a casting direction to thereby bulge the strand having an unsolidified layer thereinside such that the thickness between long-side surfaces of the strand increases within the range of 0.1% or more and 10% or less of the thickness of the strand inside a mold. A portion of the strand in which the solid phase fraction in a central portion of the strand is within the range of 0.2 or more and less than 0.9 satisfies a prescribed total rolling reduction and a prescribed reduction gradient, and a portion of the strand in which the solid phase fraction is within the range of 0.9 or more satisfies a prescribed total rolling reduction and a prescribed reduction gradient.Type: ApplicationFiled: February 25, 2019Publication date: December 31, 2020Applicant: JFE Steel CorporationInventors: Keigo Toishi, Yutaka Awajiya, Norichika Aramaki, Naoki Kikuchi
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Publication number: 20200392592Abstract: In a method for oxygen-blowing refining of molten iron, an oxygen-containing gas as a main supply gas is supplied from an inlet side of a blowing nozzle for the oxygen-containing gas passing through an outer shell of the top-blowing lance and blown from the blowing nozzle while a control gas is jetted toward inside of the blowing nozzle for at least part of a period of the oxygen-blowing refining from a spout arranged in a side face of the nozzle at a site where the cross-sectional area of the nozzle minimum takes the minimum in the axial direction of the nozzle or a neighborhood thereof so that at least part of the spout exists in each space formed by dividing into two portions by an arbitrary plane passing through a central axis of the nozzle.Type: ApplicationFiled: November 8, 2018Publication date: December 17, 2020Applicant: JFE Steel CorporationInventors: Nobuhiko Oda, Goro Okuyama, Shota Amano, Kenji Nakase, Yukio Takahashi, Yuta Hino, Naoki Kikuchi, Yuji Miki
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Publication number: 20200385830Abstract: When performing dephosphorization treatment of hot metal by adding a refining agent as a lime source and an oxygen source (dephosphorizing agent(s) and a gaseous oxygen source into the hot metal accommodated in a hot metal holding container, the refining agent used is a refining agent having an Ig-loss value of from 4.0% by mass to 35.0% by mass and including 60% by mass or more of quicklime.Type: ApplicationFiled: December 15, 2017Publication date: December 10, 2020Applicant: JFE Steel CorporationInventors: Yusuke Fujii, Yoshie Nakai, Mikihiro Mori, Takahiko Maeda, Naoki Kikuchi, Noritaka Nishiguchi
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Patent number: 10745771Abstract: A molten steel refining method includes throwing a powder to molten steel while heating the powder with a flame formed by combustion of a hydrocarbon gas at the leading end of a top blowing lance. The lance height of the top blowing lance (the distance between the static bath surface of the molten steel and the leading end of the lance) is controlled to 1.0 to 7.0 m, and the dynamic pressure P of a jet flow ejected from the top blowing lance calculated from equation (1) below is controlled to 20.0 kPa or more and 100.0 kPa or less. P=?g× U2/2 . . . (1) wherein P is the dynamic pressure (kPa) of the jet flow at an exit of the top blowing lance, ?g the density (kg/Nm3) of the jet flow, and U the velocity (m/sec) of the jet flow at the exit of the top blowing lance.Type: GrantFiled: February 15, 2017Date of Patent: August 18, 2020Assignee: JFE STEEL CORPORATIONInventors: Yusuke Fujii, Yoshie Nakai, Naoki Kikuchi, Naoya Shibuta, Shinichi Nagai, Takahiko Maeda, Yuji Miki
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Patent number: 10701341Abstract: A calibration method is for a photographic device that photographs an object through a transparent body. The calibration method includes: acquiring a first photographic image by photographing the object without interposing the transparent body; acquiring a second photographic image by photographing the object through the transparent body; calculating an absolute positional deviation that indicates a deviation in coordinates of an image of the object due to the transparent body based on coordinates of an image of the object on the first photographic image and coordinates of an image of the object on the second photographic image; calculating a correction parameter for calibrating the absolute positional deviation; and storing the correction parameter in the photographic device.Type: GrantFiled: December 28, 2018Date of Patent: June 30, 2020Assignee: RICOH COMPANY, LTD.Inventors: Jun Kishiwada, Shin Aoki, Naoki Kikuchi, Kagehiro Nagao
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Publication number: 20200157645Abstract: When the decarburization refining of molten iron is performed by top-blowing oxygen gas from the top blowing lance, the oscillation of molten iron, a bubble burst, and spitting due to the bubble burst are suppressed. A refining method for a converter includes decarburizing molten iron in the converter with a top blowing lance having Laval nozzles disposed at the lower end thereof by blowing oxygen gas on the surface of the molten iron in the converter through the Laval nozzles, in which one or both of an oxygen feeding rate from the top blowing lance and lance height LH are adjusted in such a manner that an oxygen accumulation index S(F) is 40 or less.Type: ApplicationFiled: May 7, 2018Publication date: May 21, 2020Applicant: JFE STEEL CORPORATIONInventors: Shota AMANO, Yukio TAKAHASHI, Naoki KIKUCHI, Yuji MIKI
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Patent number: 10650965Abstract: A film capacitor includes a main body portion including a dielectric film and a metal film; and external electrodes, and the external electrodes are disposed at a pair of main body ends in a first direction of the main body portion, respectively. The metal film includes a first portion connected to one of the external electrodes which is disposed at one of the main body ends, a second portion disposed at the other main body end, and a third portion disposed between the first portion and the second portion in the first direction, and a film thickness of the third portion is smaller than a film thickness of the second portion.Type: GrantFiled: April 26, 2017Date of Patent: May 12, 2020Assignee: KYOCERA CorporationInventor: Naoki Kikuchi
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Publication number: 20200134337Abstract: An emotion estimation apparatus includes a recording section that records one or more events that cause a change in an emotion of a person and prediction information for predicting, for each event, an occurrence of the event; an event predicting section that predicts the occurrence of the event, based on detection of the prediction information; and a frequency setting section that sets a frequency with which an estimation of the emotion is performed. If the occurrence of the event is predicted by the event predicting section, the frequency setting section sets the frequency to be higher than in a case where the occurrence of the event is not predicted, and also sets the frequency based on the content of the event.Type: ApplicationFiled: October 28, 2019Publication date: April 30, 2020Inventors: Kenji OKUMA, Takashi OKADA, Kota SAITO, Seungho CHOI, Yoshikazu MATSUO, Naoki KIKUCHI, Katsuya IKENOBU
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Patent number: 10621694Abstract: An image processing apparatus includes: an acquisition unit that acquires a plurality of first images that correspond to a plurality of spatial frequencies on a one-to-one basis; and a generation unit that generates a second image by synthesizing the first images acquired by the acquisition unit.Type: GrantFiled: December 11, 2018Date of Patent: April 14, 2020Assignee: RICOH COMPANY, LTD.Inventors: Naoki Kikuchi, Kiichiroh Saitoh