Patents by Inventor Nobuhiko Oda
Nobuhiko Oda 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).
-
Patent number: 11959147Abstract: A top-blowing lance nozzle is configured to freely switch an adequate expansion condition so as to control an oxygen-blowing amount and a jetting velocity independently of each other without requiring a plurality of lance nozzles or a mechanically movable part. A lance nozzle is configured to blow refining oxygen to molten iron charged in a reaction vessel while a gas is blown from a top-blowing lance to the molten iron. One or more blowing holes for blowing a working gas are on an inner wall side surface of the nozzle, at a site where the lance nozzle has a minimum cross-sectional area in a nozzle axis direction or at a neighboring site of the site.Type: GrantFiled: April 2, 2020Date of Patent: April 16, 2024Assignee: JFE STEEL CORPORATIONInventors: Yumi Murakami, Nobuhiko Oda, Yusuke Fujii, Goro Okuyama, Shota Amano, Shinji Koseki, Shingo Sato, Yukio Takahashi, Ryo Kawabata, Naoki Kikuchi, Atsuo Yuasa
-
Publication number: 20230313330Abstract: A method for efficiently manufacturing low-phosphorus molten steel by use of a steelmaking electric furnace, in which slag resulting from melting a solid iron source is effectively separated from molten steel, and thus a unit consumption of lime required to reduce a phosphorus content in the molten steel is reduced. The method includes: charging a solid iron source and an optional molten iron source and melting and heating these raw materials by using electric energy; partly or entirely removing slag generated during the melting; performing dephosphorization by adding dephosphorization flux; and tapping low-phosphorus molten steel thus refined, and in the method, a slag composition ratio being [CaO]/([SiO2]+[Al2O3]) of the slag to be removed is adjusted to be not less than 0.25 and not more than 0.70.Type: ApplicationFiled: August 23, 2021Publication date: October 5, 2023Applicant: JFE STEEL CORPORATIONInventors: Nobuhiko ODA, Masanori TANNO, Rei YAMADA
-
Publication number: 20230304110Abstract: A method for producing chromium-containing molten steel from a raw material including a chromium-containing raw material includes a first step in which a slag basicity before rough decarburization by oxygen blowing is adjusted to be not less than 1.5 and not more than 3.0, a slag basicity after rough decarburization by oxygen blowing is adjusted to be not less than 2.0 and not more than 3.5, and then tapping is performed while slag containing a chromium oxide generated by the oxygen blowing is made to remain in the furnace, and a second step in which the slag containing a chromium oxide made to remain is reduced by using a carbon source or a metal source newly added into the same furnace so that chromium is recovered into molten steel. The slag basicity is determined by dividing a CaO concentration by an SiO2 concentration on a mass basis in the slag.Type: ApplicationFiled: August 23, 2021Publication date: September 28, 2023Applicant: JFE STEEL CORPORATIONInventors: Nobuhiko ODA, Futoshi OGASAWARA, Kentaro KAKIGI, Takayoshi FUKUYAMA
-
Publication number: 20230167518Abstract: A method for producing low-carbon ferromanganese capable of achieving a high Mn yield. In producing low-carbon ferromanganese by blowing an oxidizing gas from a top-blowing lance onto a bath face of high-carbon ferromanganese molten metal accommodated in a reaction vessel provided with a top-blowing lance and bottom-blowing tuyere to perform decarburization, the slag composition during the blowing is adjusted so that a value of (CaO+MgO)/(Al2O3+SiO2) on a mass basis in the slag composition is not less than 0.4 but not more than 5.0. Also, agitation is performed under a condition that an agitation power density ? of an agitation gas blown through the bottom-blowing tuyere is not less than 500 W/t.Type: ApplicationFiled: February 16, 2021Publication date: June 1, 2023Applicants: JFE STEEL CORPORATION, JFE MINERAL & ALLOY COMPANY, LTD.Inventors: Nobuhiko ODA, Yusuke FUJII, Shingo SATO, Ryo KAWABATA, Naoki KIKUCHI, Toshio SHIOTA, Ippei HIGUCHI
-
Publication number: 20220271066Abstract: A transistor array substrate includes a scan line formed on a support substrate, a capacitive section formed above the scan line, and a thin film transistor formed above the capacitive section, in which a perimeter of the thin film transistor is surrounded by a wall-shaped horizontal light-blocking film that extends in a normal direction with respect to the support substrate and is in contact with a surface of an electrode that is an uppermost layer of the capacitive section, and an upper light-blocking film is formed above the thin film transistor.Type: ApplicationFiled: June 19, 2020Publication date: August 25, 2022Inventors: TAKEOMI MORITA, SHINYA INAGE, HITOSHI TSUNO, NOBUHIKO ODA, YOSHIHIKO KAJIYA
-
Publication number: 20220259686Abstract: A dephosphorization method using a top and bottom blown converter. This method uses a converter charged with molten iron and slag, to blow an oxygen-containing gas from a top-blowing lance, supply the gas from an inlet of a blowing hole, and supply a control gas from an opening toward an axial center. This method has: a slag top-surface position measurement step, with the top surface of the molten iron measured in advance, measuring an arbitrary position in a top surface of the slag; a slag top-surface difference calculation of slag thickness difference between the measured top-surface positions of the molten iron and the slag; and a jetting condition adjustment step of, using the obtained slag thickness, adjusting a jetting condition of the gas jetted from the top-blowing lance into an appropriate range. The top-blown jetting condition is adjusted by comparing the slag thickness and the depth of a surface depression.Type: ApplicationFiled: July 2, 2020Publication date: August 18, 2022Applicant: JFE STEEL CORPORATIONInventors: Yumi MURAKAMI, Nobuhiko ODA, Hidemitsu NEGISHI, Ryo KAWABATA, Naoki KIKUCHI, Yusuke FUJII
-
Publication number: 20220154299Abstract: A top-blowing lance nozzle is configured to freely switch an adequate expansion condition so as to control an oxygen-blowing amount and a jetting velocity independently of each other without requiring a plurality of lance nozzles or a mechanically movable part. A lance nozzle is configured to blow refining oxygen to molten iron charged in a reaction vessel while a gas is blown from a top-blowing lance to the molten iron. One or more blowing holes for blowing a working gas are on an inner wall side surface of the nozzle, at a site where the lance nozzle has a minimum cross-sectional area in a nozzle axis direction or at a neighboring site of the site.Type: ApplicationFiled: April 2, 2020Publication date: May 19, 2022Applicant: JFE STEEL CORPORATIONInventors: Yumi MURAKAMI, Nobuhiko ODA, Yusuke FUJII, Goro OKUYAMA, Shota AMANO, Shinji KOSEKI, Shingo SATO, Yukio TAKAHASHI, Ryo KAWABATA, Naoki KIKUCHI, Atsuo YUASA
-
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
-
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
-
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
-
Patent number: 10353155Abstract: Provided is a multi-fiber optical connector which can be easily assembled by having a simple structure and provides high workability at the time of connection. Since a plate-shaped guide 2 adapted to move a fiber is provided on an end surface and a gap x is provided on a rear surface of the plate-shaped guide 2, achieved is a structure in which each of fibers 5 is mutually moved in an optical axis direction along a penetration hole h provided at the plate-shaped guide 2 at the time of connecting connectors. Consequently, the respective fibers 5 which can be elastically connected independently from each other can be collectively connected at the time of connecting the connectors, and furthermore, positioning accuracy between the respective fibers 5 can be improved when the connector is used as a multi-fiber optical connector 1.Type: GrantFiled: April 20, 2016Date of Patent: July 16, 2019Assignee: ADAMANT NAMIKI PRECISION JEWEL CO., LTD.Inventors: Masahiro Abumi, Kazuaki Ikegai, Nobuhiko Oda, Takehiro Hayashi
-
Patent number: 10241370Abstract: A semiconductor device according to an embodiment of the disclosure includes: a first substrate; a TFT element provided on the first substrate with a first interlayer insulating layer interposed therebetween, and including a semiconductor layer and a gate electrode that is provided on the semiconductor layer with a gate insulating layer interposed therebetween; and a second substrate disposed to face the first substrate. The gate electrode includes a first electroconductive film and a second electroconductive film that has a light-shielding property in order from side of the semiconductor layer. The second electroconductive film extends from a side face to a bottom face of each of a pair of openings that are provided to interpose the semiconductor layer.Type: GrantFiled: October 27, 2016Date of Patent: March 26, 2019Assignee: Sony CorporationInventors: Kazuki Abe, Shinya Inage, Nobuhiko Oda, Masahiro Kaida, Moriyasu Nagura
-
Publication number: 20180329264Abstract: A semiconductor device according to an embodiment of the disclosure includes: a first substrate; a TFT element provided on the first substrate with a first interlayer insulating layer interposed therebetween, and including a semiconductor layer and a gate electrode that is provided on the semiconductor layer with a gate insulating layer interposed therebetween; and a second substrate disposed to face the first substrate. The gate electrode includes a first electroconductive film and a second electroconductive film that has a light-shielding property in order from side of the semiconductor layer. The second electroconductive film extends from a side face to a bottom face of each of a pair of openings that are provided to interpose the semiconductor layer.Type: ApplicationFiled: October 27, 2016Publication date: November 15, 2018Applicant: Sony CorporationInventors: Kazuki Abe, Shinya Inage, Nobuhiko Oda, Masahiro Kaida, Moriyasu Nagura
-
Publication number: 20180113260Abstract: Provided is a multi-fiber optical connector which can be easily assembled by having a simple structure an provides high workability at the time of connection. Since a plate-shaped guide 2 adapted to move a fiber is provided on an end surface and a gap x is provided on a rear surface of the plate-shaped guide 2, achieved is a structure in which each of fibers 5 is mutually moved in an optical axis direction along a penetration hole h provided at the plate-shaped guide 2 at the time of connecting connectors. Consequently, the respective fibers 5 which can be elastically connected independently from each other can be collectively connected at the time of connecting the connectors, and furthermore, positioning accuracy between the respective fibers 5 can be improved when the connector is used as a multi-fiber optical connector 1.Type: ApplicationFiled: April 20, 2016Publication date: April 26, 2018Inventors: Masahiro ABUMI, Kazuaki IKEGAI, Nobuhiko ODA, Takehiro HAYASHI
-
Patent number: 8613560Abstract: An optical connector plug is comprised of a pair of divided front and rear housings formed generally in a quadrilateral tubular shape for receiving a ferrule to hold an optical fiber. A housing, one of the housings is provided with engagement openings on at least opposite wall portions thereof, and the other housing is provided with engagement projections on its opposite wall portions to be engaged in the engagement openings. Furthermore, fitting projections are formed in the longitudinal direction on the wall portions in which the engagement openings are formed, and fitting recesses to be fitted with the fitting projections are formed in the wall portions on which the engagement projections are formed. The pair of housings are firmly joined to each other by engaging the engagement projections with the engagement openings and by fitting and engaging the fitting projections in the fitting recesses.Type: GrantFiled: April 26, 2010Date of Patent: December 24, 2013Assignee: Adamant Kogyo Co., Ltd.Inventors: Nobuhiko Oda, Isao Yamauchi, Kohsuke Ishikawa
-
Patent number: D664927Type: GrantFiled: July 28, 2011Date of Patent: August 7, 2012Assignee: Adamant Kogyo Co., Ltd.Inventors: Isao Yamauchi, Nobuhiko Oda, Hiroyuki Enda, Satoshi Kano
-
Patent number: D705168Type: GrantFiled: January 7, 2013Date of Patent: May 20, 2014Assignee: Adamant Kogyo Co., Ltd.Inventors: Isao Yamauchi, Nobuhiko Oda, Hiroshi Sano
-
Patent number: D705169Type: GrantFiled: August 6, 2013Date of Patent: May 20, 2014Assignee: Adamant Kogyo Co., Ltd.Inventors: Isao Yamauchi, Nobuhiko Oda, Hiroshi Sano
-
Patent number: D801279Type: GrantFiled: September 15, 2016Date of Patent: October 31, 2017Assignee: ADAMANT CO., LTD.Inventors: Takehiro Hayashi, Masahiro Abumi, Nobuhiko Oda
-
Patent number: D801280Type: GrantFiled: September 15, 2016Date of Patent: October 31, 2017Assignee: ADAMANT CO., LTD.Inventors: Takehiro Hayashi, Masahiro Abumi, Nobuhiko Oda