Patents by Inventor Daisuke Sakuma
Daisuke Sakuma 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: 11553635Abstract: A work vehicle includes a travelling vehicle body; a work machine mounted on a rear portion of the travelling vehicle body to be capable of being lifted and lowered; a control unit for controlling lifting and lowering of the work machine; and a rear sensor provided on the rear portion of the travelling vehicle body and configured to detect an object present behind the travelling vehicle body. The control unit may be configured to set a regulation height based on a height where the rear sensor detects the work machine while the work machine is lifted and then regulate lifting of the work machine during work in such a manner that a height of the work machine is kept less than or equal to the regulation height.Type: GrantFiled: December 13, 2019Date of Patent: January 17, 2023Assignee: ISEKI & CO., LTD.Inventor: Daisuke Sakuma
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Publication number: 20220349026Abstract: A metal purifying method having: a local heating step of heating an aluminum-based molten metal in a first region on a molten metal surface of the aluminum-based molten metal; and a local low pressure step of lowering the pressure in a second region on the molten metal surface to a pressure lower than the pressure in the first region. The second region is different from the first region. This allows a specific element to be vaporized from the second region to purify the aluminum-based molten metal. The specific element is one or more of Zn, Mg, or Pb having a saturated vapor pressure higher than that of Al. This is effective not only in a purifying method for removing a specific element from an aluminum-based molten metal but also in a method of recovering a specific element, which can be a resource, from an aluminum-based molten metal.Type: ApplicationFiled: April 14, 2022Publication date: November 3, 2022Applicants: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHA, TOYOTA TSUSHO CORPORATIONInventors: Hiroshi KAWAHARA, Jun YAOKAWA, Kazuma HIBI, Hiroyuki MORI, Yasushi IWATA, Takuma MINOURA, Hiroyuki ISHII, Daisuke SAKUMA, Yusei KUSAKA, Akira KANO, Kyosuke ITO, Satoshi NAKANO
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Publication number: 20220097435Abstract: A textile printing method for printing on a fabric, the fabric being a nonwoven fabric containing synthetic fibers. includes a first adhering step of adhering to the fabric by ejecting a dyeing ink by an ink jet method, and a second adhering step of adhering a non-dyeing ink to the fabric. The dyeing ink contains a disperse dye, a water-soluble organic solvent, and water, and the non-dyeing ink contains a water-soluble organic solvent and water. The water-soluble organic solvent contained in the non-dyeing ink contains a glycol-based organic solvent having a HSP value of 13.6 or more, and the content of the glycol-based organic solvent is 80% by mass or more relative to the total amount of the organic solvent contained in the non-dyeing ink. The adhesion position of the dyeing ink and the adhesion position of the non-dyeing ink are at least partially overlapped each other.Type: ApplicationFiled: September 29, 2021Publication date: March 31, 2022Inventors: Yasuhiro OKI, Yoshitaka MIYAJIMA, Daisuke SAKUMA, Hiromi NOGUCHI
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Publication number: 20210310651Abstract: The present disclosure provides a nozzle structure for a hydrogen gas burner apparatus capable of reducing an amount of generated NOx. A nozzle structure for a hydrogen gas burner apparatus includes an outer tube and an inner tube concentrically disposed inside the outer tube. The inner tube is disposed so that an oxygen-containing gas is discharged from an opened end of the inner tube in an axial direction of the inner tube. The outer tube extends beyond the opened end of the inner tube in the axial direction of the inner tube so that a hydrogen gas passes through a space between an inner circumferential surface of the outer tube and an outer circumferential surface of the inner tube.Type: ApplicationFiled: June 15, 2021Publication date: October 7, 2021Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koichi HIRATA, Daisuke SAKUMA, Noriyuki UENO
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Publication number: 20210301155Abstract: An ink jet ink composition contains a color material, an organic solvent, and water. The ink jet ink composition contains N-hydroxyethylpyrrolidone and N-vinyl-2-pyrrolidone as the organic solvent.Type: ApplicationFiled: March 29, 2021Publication date: September 30, 2021Inventors: Yasuhiro OKI, Daisuke SAKUMA, Hidehiko KOMATSU, Shintaro HAMA
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Patent number: 11098893Abstract: The present disclosure provides a nozzle structure for a hydrogen gas burner apparatus capable of reducing an amount of generated NOx. A nozzle structure for a hydrogen gas burner apparatus includes an outer tube and an inner tube concentrically disposed inside the outer tube. The inner tube is disposed so that an oxygen-containing gas is discharged from an opened end of the inner tube in an axial direction of the inner tube. The outer tube extends beyond the opened end of the inner tube in the axial direction of the inner tube so that a hydrogen gas passes through a space between an inner circumferential surface of the outer tube and an outer circumferential surface of the inner tube.Type: GrantFiled: August 13, 2018Date of Patent: August 24, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koichi Hirata, Daisuke Sakuma, Noriyuki Ueno
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Patent number: 10774230Abstract: An ink jet textile printing ink contains at least one water-soluble dye selected from the group consisting of acid dyes, reactive dyes, and direct dyes, a nonionic surfactant with a content in the range of 0.05% by mass to 3.0% by mass relative to the total mass of the ink, and an anionic surfactant with a content in the range of 1 ppm by mass to 100 ppm by mass relative to the total mass of the ink.Type: GrantFiled: July 30, 2018Date of Patent: September 15, 2020Assignee: Seiko Epson CorporationInventors: Yasuhiro Oki, Hidehiko Komatsu, Daisuke Sakuma, Hiroyuki Kaneko
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Patent number: 10724028Abstract: The invention provides a ligand-bonded fiber in which a ligand having affinity for a cell membrane receptor is immobilized on a fiber precursor, and a cell culture substrate capable of repeating ex vivo amplification of a cell expressing a cell membrane receptor by using the ligand-bonded fiber.Type: GrantFiled: October 30, 2015Date of Patent: July 28, 2020Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.Inventors: Makiko Umezaki, Takahiro Kishioka, Taito Nishino, Ayako Aihara, Shunsuke Iwamoto, Daisuke Sakuma
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Publication number: 20200205335Abstract: A work vehicle includes a travelling vehicle body; a work machine mounted on a rear portion of the travelling vehicle body to be capable of being lifted and lowered; a control unit for controlling lifting and lowering of the work machine; and a rear sensor provided on the rear portion of the travelling vehicle body and configured to detect an object present behind the travelling vehicle body. The control unit may be configured to set a regulation height based on a height where the rear sensor detects the work machine while the work machine is lifted and then regulate lifting of the work machine during work in such a manner that a height of the work machine is kept less than or equal to the regulation height.Type: ApplicationFiled: December 13, 2019Publication date: July 2, 2020Inventor: Daisuke Sakuma
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Patent number: 10658107Abstract: In a method of manufacturing a permanent magnet having a curved surface, a permeating material including metal particles and a flux is applied to the curved surface of a magnet. The magnet to which the permeating material is applied is then positioned within a furnace and the furnace is placed in a vacuum or filled with inert gas to volatilize a solvent and the like of the flux contained in the permeating material. The furnace is set to be a temperature within a range of 300 through 500 degrees C. to heat the permeating material. This enables the flux to be carbonized to form reticulated carbon. The furnace is then set to be a temperature within a range of 500 through 800 degrees C. to melt the metal particles in the permeating material, thereby permeating the melted metal particles into the magnet through the reticulated carbon uniformly.Type: GrantFiled: October 11, 2017Date of Patent: May 19, 2020Assignee: Senju Metal Industry Co., Ltd.Inventors: Daisuke Sakuma, Kazuaki Haga, Takaaki Takahashi, Minoru Ueshima, Takashi Akagawa, Yoshie Tachibana
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Patent number: 10648662Abstract: The present disclosure provides a nozzle structure for a hydrogen gas burner apparatus, capable of reducing an amount of generated NOx. A nozzle structure for a hydrogen gas burner apparatus, includes an outer pipe, an inner pipe disposed concentrically with the outer pipe, and a stabilizer configured to throttle a space between the outer pipe and the inner pipe. The inner pipe includes an inner pipe end part with an axial opening hole and a circumferential opening hole formed therein, the axial opening hole penetrating in an axial direction of the inner pipe, the circumferential opening hole penetrating in a radial direction of the inner pipe. A hydrogen gas flows through the inner pipe. The circumferential opening hole lets the hydrogen gas flow out from the inner pipe in the radial direction of the inner pipe.Type: GrantFiled: August 9, 2018Date of Patent: May 12, 2020Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CHUGAI RO CO., LTD.Inventors: Nozomi Maitani, Daisuke Sakuma, Koichi Hirata, Noriyuki Ueno
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Publication number: 20200131390Abstract: An ink jet ink for textile printing contains a reactive dye, where 1.2% by mass or more and 2.3% by mass or less of C.I. Reactive Blue 49 based on the total amount of the ink is contained as the reactive dye.Type: ApplicationFiled: October 30, 2019Publication date: April 30, 2020Inventors: Daisuke SAKUMA, Hiroaki MARUYAMA, Hidehiko KOMATSU
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Patent number: 10627107Abstract: A hydrogen gas burner structure includes a first cylinder tube, a second cylinder tube, a third cylinder tube, and an ignition device. An inside of the first cylinder tube is configured such that hydrogen gas flows. A space between the first cylinder tube and the second cylinder tube is configured such that a first combustion-supporting gas containing oxygen gas flows. A space between the second cylinder tube and the third cylinder tube is configured such that a second combustion-supporting gas containing oxygen gas flows. The ignition device is configured to ignite mixed gas. The tip of the first cylinder tube is located upstream of the tips of the second and third cylinder tubes in a gas flow direction in which the hydrogen gas and the first combustion-supporting gas and the second combustion-supporting gas flow.Type: GrantFiled: November 28, 2017Date of Patent: April 21, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koichi Hirata, Daisuke Sakuma, Kenshiro Mimura
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Publication number: 20200071553Abstract: An ink jet printing penetrant which is used to penetrate an ink jet printing color ink containing a dye in a cloth is provided, and the ink jet printing penetrant includes at least one glycol-based solvent having an HSP value of 13.6 or more; and water. In addition, the content of the glycol-based solvent with respect to a total mass of at least one organic solvent contained in the ink jet printing penetrant is 95 percent by mass or more, and the glycol-based solvent has a standard boiling point of 243° C. or less.Type: ApplicationFiled: August 27, 2019Publication date: March 5, 2020Inventors: Daisuke SAKUMA, Hidehiko KOMATSU, Hiromi NOGUCHI
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Patent number: 10550277Abstract: An ink composition contains a first dye represented by formula (I) and a second dye represented by formula (II)Type: GrantFiled: June 26, 2017Date of Patent: February 4, 2020Assignee: Seiko Epson CorporationInventors: Hidehiko Komatsu, Yasuhiro Oki, Daisuke Sakuma, Hiroyuki Kaneko, Yuki Wakushima
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Patent number: 10393440Abstract: A molten metal temperature control method includes: with respect to relations among a spheroidization distance traveled by a molten metal of an alloy from a nozzle tip to a position where the molten metal turns into droplets, the temperature of the molten metal inside the crucible, and a pressure acting on the molten metal inside the crucible, obtaining a relation between the temperature and the spheroidization distance at a predetermined pressure, and setting a predetermined temperature range of the temperature; measuring a spheroidization distance when discharging the molten metal from the crucible at the predetermined pressure, and specifying a temperature corresponding to the measured spheroidization distance; and comparing the specified temperature and the predetermined temperature range, and when the specified temperature is outside the predetermined temperature range, controlling the specified temperature so as to be within the predetermined temperature range by adjusting the temperature inside the cruType: GrantFiled: October 11, 2016Date of Patent: August 27, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Daisuke Sakuma
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Patent number: 10343305Abstract: A carbon fiber recovery method for recovering carbon fibers from a fiber reinforced plastic member having a carbon fiber reinforced plastic (CFRP) layer on which a glass fiber reinforced plastic (GFRP) layer is formed is provided. This method includes: forming a cut that penetrates through the GFRP layer and reaches the CFRP layer in the fiber reinforced plastic member; causing a heated phosphorus-containing solution to penetrate from the cut and separating the CFRP layer from the GFRP layer in the vicinity of an interface between the CFRP layer and the GFRP layer; and dissolving, by a resin solution, a resin part of the CFRP layer from which the GFRP layer has been removed and then recovering the remaining carbon fibers.Type: GrantFiled: September 10, 2018Date of Patent: July 9, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Akira Kano, Daisuke Sakuma, Keisuke Isomura
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Patent number: 10347418Abstract: A method includes: manufacturing a sintered compact represented by (Rl)x(Rh)yTzBsMt and has a grain boundary phase; manufacturing a rare earth magnet precursor from the sintered compact; and performing a heat treatment on the rare earth magnet precursor at 450° C. to 700° C. to diffuse and to infiltrate a melt of a modified alloy containing a light rare earth element and either a transition metal element, Al, In, Zn, or Ga into the grain boundary phase. Rl represents a light rare earth element. Rh represents Dy or Tb. T represents a transition metal containing at least one of Fe, Ni, and Co. B represents boron. M represents at Ga, Al, or Cu. x, y, z, s, and t represent mass % of Rl, Rh, T, B, and M. Following expressions are established: 27?x?44, 0?y?10, z=100?x?y?s?t, 0.75?s?3.4, 0?t?3. An infiltration amount of the modified alloy is 0 mass % to 5 mass %.Type: GrantFiled: December 17, 2014Date of Patent: July 9, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Noritsugu Sakuma, Tetsuya Shoji, Daisuke Sakuma, Kazuaki Haga
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Publication number: 20190099921Abstract: A carbon fiber recovery method for recovering carbon fibers from a fiber reinforced plastic member having a carbon fiber reinforced plastic (CFRP) layer on which a glass fiber reinforced plastic (GFRP) layer is formed is provided. This method includes: forming a cut that penetrates through the GFRP layer and reaches the CFRP layer in the fiber reinforced plastic member; causing a heated phosphorus-containing solution to penetrate from the cut and separating the CFRP layer from the GFRP layer in the vicinity of an interface between the CFRP layer and the GFRP layer; and dissolving, by a resin solution, a resin part of the CFRP layer from which the GFRP layer has been removed and then recovering the remaining carbon fibers.Type: ApplicationFiled: September 10, 2018Publication date: April 4, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Akira KANO, Daisuke SAKUMA, Keisuke ISOMURA
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Patent number: 10242795Abstract: A manufacturing method includes: manufacturing a sintered compact having a composition of (Rl)x(Rh)yTzBsMt; manufacturing a precursor by performing hot deformation processing on the sintered compact; and manufacturing a rare earth magnet by performing an aging treatment on the precursor in a temperature range of 450° C. to 700° C. In this method, a main phase thereof is formed of a (RlRh)2T14B phase. A content of a (RlRh)1.1T4B4 phase in a grain boundary phase thereof is more than 0 mass % and 50 mass % or less. Rl represents a light rare earth element. Rh represents a heavy rare earth element. T represents a transition metal. M represents at least one of Ga, Al, Cu, and Co. x, y, z, s, and t are percentages by mass of Rl, Rh, T, B, and M. x, y, z, s, and t are expressed by the following expressions: 27?x?44, 0?y?10, z=100?x?y?s?t, 0.75?s?3.4, 0?t?3.Type: GrantFiled: December 19, 2014Date of Patent: March 26, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Noritsugu Sakuma, Tetsuya Shoji, Daisuke Sakuma, Kazuaki Haga