Patents by Inventor Takuya Okada
Takuya Okada 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: 20230120116Abstract: An oxymethylene copolymer resin composition, which includes (i) an oxymethylene copolymer, (ii) a derivative of an aryl boron fluoride compound, and (iii) a layered double hydroxide; and a method for producing the same.Type: ApplicationFiled: May 31, 2021Publication date: April 20, 2023Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Takuya OKADA, Daisuke SUNAGA
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Publication number: 20230065145Abstract: An inkjet recording device includes: an inkjet unit that ejects ink to a recording medium while scanning in a main scanning direction; a first treatment liquid ejection head that is arranged side by side with the inkjet unit in the main scanning direction, scans together with the inkjet unit, and ejects a first treatment liquid to the recording medium; and a second treatment liquid ejection head that is arranged side by side with the inkjet unit in the main scanning direction, scans together with the inkjet unit, and ejects a second treatment liquid different from the first treatment liquid to the recording medium, wherein at least one of the first treatment liquid ejection head and the second treatment liquid ejection head is arranged on both sides of the inkjet unit in the main scanning direction.Type: ApplicationFiled: August 10, 2022Publication date: March 2, 2023Inventors: Takuya ISHIGAI, Keishi SUZUKI, Takuya OKADA
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Publication number: 20220324017Abstract: A tundish upper nozzle structure and a continuous casting method make it possible to cause inclusions to float within a tundish. A flange-shaped member having an outside dimension greater than that of an upper end of a tundish upper nozzle is provided along a part or the entirety of the circumference of the upper end of the tundish upper nozzle, and one or more gas discharge holes are provided in one or more of the following surfaces: a lower surface, an outer peripheral surface and a top surface of the flange-shaped member, and a region of an outer peripheral surface of the tundish upper nozzle below the flange-shaped member. A length in the tundish upper nozzle structure is adjusted to cause almost all gas to float upwardly, or to adjust the flow rate of gas flowing downwardly toward the inner bore of the tundish upper nozzle, and the flow rate of gas floating upwardly.Type: ApplicationFiled: September 17, 2020Publication date: October 13, 2022Applicant: KROSAKIHARIMA CORPORATIONInventors: Shinichi FUKUNAGA, Takuya OKADA, Toshio KAKU, Hiroki FURUKAWA
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Publication number: 20220193644Abstract: CHA-type zeolite in which the molar ratio of silica to alumina is less than 13, and the content of sodium is 100 ppm or more and 2000 ppm or less is provided. Such a CHA-type zeolite is obtained by a manufacturing method including obtaining a crystallized product by crystallizing a composition which includes a structure-directing agent source containing at least N,N,N-trialkylcyclohexylammonium cation, an alumina source, a silica source, a sodium source, and water and in which the molar ratio of silica to alumina is 20 or less and in which the molar ratio of potassium to sodium is less than 0.05, removing N,N,N-trialkylcyclohexylammonium cation from the crystallized product, and contacting the crystallized product with an ammonium-salt-containing solution having an ammonium concentration of 1 mass percent or more.Type: ApplicationFiled: December 16, 2021Publication date: June 23, 2022Applicant: TOSOH CORPORATIONInventors: Yoshitaka YAMASAKI, Tomoya ISHIKAWA, Keita NAKAO, Takuya OKADA, Yusuke NARAKI
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Publication number: 20220158025Abstract: A light-emitting device includes an n-side semiconductor layer comprising an n-type contact layer and an intermediate layer located on the n-type contact layer; an active layer located on the intermediate layer; and a p-side semiconductor layer located on the active layer. The intermediate layer includes at least one stacked portion comprising a first layer and a second layer. The first layer is an n-type nitride semiconductor layer comprising an n-type impurity, Al, and Ga. The second layer is a nitride semiconductor layer that includes Al and Ga, has a lower n-type impurity concentration than the first layer, and has a larger thickness than the first layer. An Al composition ratio of the first layer is higher than an Al composition ratio of the second layer.Type: ApplicationFiled: October 21, 2021Publication date: May 19, 2022Applicant: NICHIA CORPORATIONInventor: Takuya OKADA
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Patent number: 11326051Abstract: It has been desired to develop a method for producing an oxymethylene polymer, by which an oxymethylene polymer having a high polymerization degree can be produced with high efficiency while suppressing increase in the amount of generation of an odor. Further, it has been desired to develop an oxymethylene polymer resin composition, wherein generation of an odor at the time of molding or after molded to obtain a molded body is suppressed. The present invention provides a method for producing an oxymethylene polymer, wherein the oxymethylene polymer is produced by polymerizing a cyclic oligomer of formaldehyde, and wherein a boron trifluoride compound and an aryl fluoride boron compound are used as polymerization catalysts. The present invention also provides an oxymethylene polymer resin composition containing an oxymethylene polymer and a derivative of an aryl fluoride boron compound.Type: GrantFiled: June 10, 2020Date of Patent: May 10, 2022Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Takuya Okada, Daisuke Sunaga
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Publication number: 20220081575Abstract: The selective film deposition method according to an embodiment of the present disclosure includes depositing a film of an organic matter represented by the following formula (1) on a substrate having a structure where a first surface region containing at least one of a metal or a metal oxide and a second surface region containing a nonmetallic inorganic material are both exposed, selectively in the first surface region than in the second surface region, wherein N represents a nitrogen atom; and R1 represents a C1-C30 hydrocarbon group optionally containing a hetero atom or a halogen atom, R2, R3, R4, and R5 each independently represent a hydrogen atom or a C1-C10 hydrocarbon group optionally containing a hetero atom or a halogen atom, where the hydrocarbon group covers a branched or cyclic hydrocarbon group when containing 3 or more carbon atoms.Type: ApplicationFiled: January 7, 2020Publication date: March 17, 2022Applicant: CENTRAL GLASS COMPANY, LIMITEDInventors: Masutaka SHINMEN, Takuya OKADA, Junki YAMAMOTO, Ryo NADANO, Tatsuo MIYAZAKI
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Publication number: 20220062984Abstract: The precision of grasping or controlling backpressure around a gas discharge portion in a stopper for continuous casting can be improved with a stopper for continuous casting which includes a cavity for conveying gas in a vertical direction center of the stopper, one or a plurality of gas discharge holes passing through from the cavity to the outside in a distal center or a side surface of a reduced-diameter region including a fitted portion to a lower nozzle, and a pressure control component in a part of an area above the gas discharge hole within the cavity.Type: ApplicationFiled: December 18, 2019Publication date: March 3, 2022Applicant: KROSAKIHARIMA CORPORATIONInventors: Shinichi FUKUNAGA, Toshio KAKU, Hiroki FURUKAWA, Takuya OKADA
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Publication number: 20220056259Abstract: It has been desired to develop a method for producing an oxymethylene polymer, by which an oxymethylene polymer having a high polymerization degree can be produced with high efficiency while suppressing increase in the amount of generation of an odor. Further, it has been desired to develop an oxymethylene polymer resin composition, wherein generation of an odor at the time of molding or after molded to obtain a molded body is suppressed. The present invention provides a method for producing an oxymethylene polymer, wherein the oxymethylene polymer is produced by polymerizing a cyclic oligomer of formaldehyde, and wherein a boron trifluoride compound and an aryl fluoride boron compound are used as polymerization catalysts. The present invention also provides an oxymethylene polymer resin composition containing an oxymethylene polymer and a derivative of an aryl fluoride boron compound.Type: ApplicationFiled: June 10, 2020Publication date: February 24, 2022Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Takuya OKADA, Daisuke SUNAGA
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Publication number: 20220032627Abstract: Provided is an inkjet printing apparatus for printing an aqueous ink on a fabric containing: a printing device for ejecting the aqueous ink onto the fabric; a coating device located downstream of the printing device for applying a cleaning liquid containing no eluate from the fabric to the fabric; and a removing device located downstream of the coating device of the cleaning liquid for removing the cleaning liquid.Type: ApplicationFiled: May 26, 2021Publication date: February 3, 2022Inventors: Takuya OKADA, Ken NITO, Masaki NAKAMURA
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Patent number: 11215186Abstract: A vacuum pump control apparatus may include a plurality of circuit boards including a first circuit board and a second circuit board which constitute a control circuit that controls a vacuum pump main body; a housing having an internal space in which the plurality of the circuit boards are arranged, in which an upper side of the housing is open; a heat radiating plate having a bottom surface portion to which the first circuit board is mounted so as to enable heat radiation and which is arranged on the housing so as to close the opening of the housing; and a board fixing means which fixes the second circuit board to a board mounting seat portion of the housing so as to enable heat radiation.Type: GrantFiled: October 31, 2017Date of Patent: January 4, 2022Assignee: Edwards Japan LimitedInventor: Takuya Okada
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Publication number: 20210402820Abstract: A image forming method of the present invention includes steps of forming a coloring material layer by applying an ink containing water and a dispersible coloring material dispersed in the water to the surface of a fabric by an inkjet method; and forming, on a surface of the coloring material layer, a protective layer having an average thickness smaller than that of the coloring material layer.Type: ApplicationFiled: June 7, 2021Publication date: December 30, 2021Inventors: Takuya OKADA, Masaki NAKAMURA, Ken NITO
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Publication number: 20210363691Abstract: The pretreatment liquid of the present invention is applicable for a fabric to be used for inkjet textile printing, and the pretreatment liquid contains a block copolymer including a hydrophobic block derived from a hydrophobic resin having an SP value of less than 11 and a hydrophilic block derived from a hydrophilic resin having an SP value of 11 or more, with the difference between the SP values of the hydrophobic resin and the hydrophilic resin of 1.0 or more; and water.Type: ApplicationFiled: May 19, 2021Publication date: November 25, 2021Inventors: Ken NITO, Takuya OKADA, Masaki NAKAMURA
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Publication number: 20210276520Abstract: The present invention obtains a hydraulic pressure control unit capable of saving a space where a device can be mounted in a straddle-type vehicle. In the hydraulic pressure control unit according to the present invention, a controller includes a brake control section that controls operation of a component for controlling a brake hydraulic pressure generated in the straddle-type vehicle, and the brake control section is accommodated in a case that is held by a base body. The controller further includes a power control section that controls operation of a power generator for the straddle-type vehicle, and the power control section is accommodated together with the brake control section in the case.Type: ApplicationFiled: April 10, 2019Publication date: September 9, 2021Inventors: Jun Ohtaka, Takuya Okada
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Publication number: 20210193865Abstract: A nitride semiconductor light-emitting element includes: an n-side nitride semiconductor layer; a p-side nitride semiconductor layer; and an active layer between the n-side nitride semiconductor layer and the p-side nitride semiconductor layer. The active layer includes: one or more well layers comprising a first well layer that is nearest to the n-side nitride semiconductor layer, and one or more barrier layers comprising a first barrier layer between the first well layer and the n-side nitride semiconductor layer. The first barrier layer comprises a Si-doped InGaN barrier layer and an undoped GaN barrier layer in this order from the n-side nitride semiconductor layer side.Type: ApplicationFiled: March 5, 2021Publication date: June 24, 2021Applicant: NICHIA CORPORATIONInventor: Takuya OKADA
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Patent number: 10978610Abstract: A method of manufacturing a nitride semiconductor light-emitting element includes growing an n-side semiconductor layer, an active layer, and a p-side semiconductor layer. The step of growing the active layer includes growing a first barrier layer before growing a well layer. The step of growing the first barrier layer includes a first stage where a first nitride semiconductor layer containing In is grown with a first concentration of n-type impurity, a second stage where a second nitride semiconductor layer containing In is grown with a second concentration of n-type impurity higher than the first concentration, a third stage where a third nitride semiconductor layer containing In is grown with a third concentration of n-type impurity lower than the second concentration, and a fourth stage where a fourth nitride semiconductor layer is grown under a growth condition in which an amount of an impurity source gas is decreased or stopped.Type: GrantFiled: August 29, 2019Date of Patent: April 13, 2021Assignee: NICHIA CORPORATIONInventor: Takuya Okada
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Patent number: 10954332Abstract: A method for producing an oxymethylene copolymer which gives molded articles that are inhibited from emitting formaldehyde and can be reduced in yellowness is provided. In producing an oxymethylene copolymer, an effective polymerization initiator amount is regulated to a value within a given range, the amount being calculated from the amount of perchloric acid or a derivative thereof contained in the polymerization initiator and the amount of triethanolamine contained in all the monomers comprising trioxane and comonomers, which are starting materials for the copolymer.Type: GrantFiled: July 16, 2019Date of Patent: March 23, 2021Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Takuya Okada, Daisuke Sunaga
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Patent number: 10851494Abstract: A method for preparing a black liquor according to the present invention comprises digesting a tobacco raw material under an alkaline condition to obtain the black liquor. Further, a method for preparing a flavor component-containing liquid according to the present invention comprises digesting a tobacco raw material under an alkaline condition, separating the obtained digesting product into a black liquor and a tobacco fiber, and desalinating the black liquor to obtain the flavor component-containing liquid.Type: GrantFiled: June 25, 2015Date of Patent: December 1, 2020Assignee: JAPAN TOBACCO INC.Inventors: Shigeru Hata, Yoshito Gohara, Ryosuke Nagase, Takuya Okada, Shintaro Akiyama
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Patent number: 10850195Abstract: Disclosed is a game program that makes a server device connected to a terminal device executing a game including a plurality of game contents with different difficulty levels through a communication network control progress of the game. The game program causes the server device to realize a determination function of, based on positional information of a real space of the terminal device acquired from the terminal device used by a user, determining establishment of a positional condition including that the terminal device is positioned or has been positioned in any of one or more predetermined areas, and a setting function of setting a game content with a difficulty level higher than a game content already set in an executable state in the terminal device or the user among the plurality of game contents in an executable state based on establishment of a release condition including the positional condition.Type: GrantFiled: September 21, 2018Date of Patent: December 1, 2020Assignee: SQUARE ENIX CO., LTD.Inventor: Takuya Okada
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Publication number: 20200362085Abstract: An oxymethylene-copolymer manufacturing method includes: polymerizing a polymerization raw material containing trioxane and a comonomer in the presence of an acid catalyst in a quantity that is 1.0×10?8 moles to 5.0×10?6 moles with respect to 1 mole of trioxane; adding a hydroxylamine compound represented by general formula (1) (in the formula, R1 and R2 are, independently of each other, a hydrogen atom or an organic group having 1-20 carbon atoms) to a reaction product obtained during the polymerizing of the polymerization raw material at 50-5000 times the quantity of the acid catalyst, in terms of the molar quantity, and mixing the hydroxylamine compound with the reaction product; and for subjecting the mixture of the reaction product and the hydroxylamine compound, which is obtained during the adding of the hydroxylamine compound, to an additional melt-kneading.Type: ApplicationFiled: June 12, 2018Publication date: November 19, 2020Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Yuuta YAMAMOTO, Daisuke SUNAGA, Takuya OKADA