Patents by Inventor Masahiro Nagai
Masahiro Nagai 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: 11984293Abstract: An electron-beam irradiation apparatus includes: a power source device; an accelerating tube that accelerates electrons when power is supplied from the power source device, to generate an electron beam; and a pressure tank that contains the power source device and the accelerating tube. The pressure tank is configured so as to be dividable into a first division body that contains the power source device and a second division body that contains the accelerating tube. The second division body has an outlet for emitting the electron beam emitted from the accelerating tube, to the outside of the pressure tank. In addition, the power source device has a connecting part connected to the second division body.Type: GrantFiled: June 17, 2022Date of Patent: May 14, 2024Assignee: NHV CORPORATIONInventors: Masahiro Nagai, Toshio Kimura
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Publication number: 20240092784Abstract: A condensed heterocyclic compound has a sepiapterin reductase inhibitory action and is particularly useful for treatment of a pain. The condensed heterocyclic compound represented by Formula (I) below (R1 represents a hydrocarbon group or the like; R2 and R3 represent a hydrogen atom or the like; R4, X, and Y represent defined substituents), a tautomer or a pharmaceutically acceptable salt of the compound, or a solvate of any of these.Type: ApplicationFiled: April 13, 2021Publication date: March 21, 2024Applicants: NISSAN CHEMICAL CORPORATION, SHIONOGI & CO., LTD.Inventors: Masahiro KAMAURA, Yusuke INABA, Yusuke SHINTANI, Yuki KUWANO, Moemi NAKAO, Hiroshi NAGAI, Noriyuki KUROSE, Kenji TAKAYA, Mado NAKAJIMA
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Publication number: 20240087836Abstract: An electron-beam irradiation apparatus includes: a power source device; an accelerating tube that accelerates electrons when power is supplied from the power source device, to generate an electron beam; and a pressure tank that contains the power source device and the accelerating tube. The pressure tank is configured so as to be dividable into a first division body that contains the power source device and a second division body that contains the accelerating tube. The second division body has an outlet for emitting the electron beam emitted from the accelerating tube, to the outside of the pressure tank. In addition, the power source device has a connecting part connected to the second division body.Type: ApplicationFiled: June 17, 2022Publication date: March 14, 2024Applicant: NHV CORPORATIONInventors: Masahiro NAGAI, Toshio KIMURA
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Patent number: 8946598Abstract: A reticulate heater for a steering wheel exhibits flexibility, elasticity and waterproofness. The reticulate heater comprises a reticulate heat generating element (11) consisting of a plurality of insulated heater wires (14) braided in a mesh form, and exhibiting flexibility and elasticity to permit tight contact with a curved surface, a waterproof stretch-film (12) covering the front and rear surfaces of the reticulate heat generating element (11) water-tightly and adhering to the reticulate heat generating element (11) while still keeping the flexibility and elasticity thereof, and an elastic adhesive (13) having flexibility and elasticity even after curing, applied to the whole surface of the stretch-film (12) on the adhering surface side in a planar and thin state, and bonding the stretch-film (12) to the reticulate heat generating element (11) water-tightly even if the stretch-film (12) is stretched within an allowable tensile range.Type: GrantFiled: October 10, 2007Date of Patent: February 3, 2015Assignee: SWCC Showa Device Technology Co., Ltd.Inventors: Shirou Hasegawa, Masahiro Nagai
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Publication number: 20100237063Abstract: A reticulate heater for a steering wheel exhibits flexibility, elasticity and waterproofness. The reticulate heater comprises a reticulate heat generating element (11) consisting of a plurality of insulated heater wires (14) braided in a mesh form, and exhibiting flexibility and elasticity to permit tight contact with a curved surface, a waterproof stretch-film (12) covering the front and rear surfaces of the reticulate heat generating element (11) water-tightly and adhering to the reticulate heat generating element (11) while still keeping the flexibility and elasticity thereof, and an elastic adhesive (13) having flexibility and elasticity even after curing, applied to the whole surface of the stretch-film (12) on the adhering surface side in a planar and thin state, and bonding the stretch-film (12) to the reticulate heat generating element (11) water-tightly even if the stretch-film (12) is stretched within an allowable tensile range.Type: ApplicationFiled: October 10, 2007Publication date: September 23, 2010Applicant: SWCC SHOWA DEVICE TEHNOLOGY CO., LTD.Inventors: Shirou Hasegawa, Masahiro Nagai
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Publication number: 20100193506Abstract: A litz wire coil is formed of two litz wires, each having a number of single wires equal to one half of a predetermined number of single wires and each stranded collectively in mutually reverse directions and wound in parallel. The two litz wires are shaped into a coil and then pressed into a predetermined shape by means of a die. Since the number of single wires within each of two litz wires is set equal to one half of a predetermined number, electrical resistance substantially equal to that of a single litz wire coil is attained without increasing the single wire diameter and without thickening the insulating film on the individual wires.Type: ApplicationFiled: July 16, 2008Publication date: August 5, 2010Applicant: SWCC SHOWA DEVICE TECHNOLOGYInventors: Masahiro Nagai, Shirou Hasegawa
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Patent number: 6752343Abstract: A conductor wire material CW is wound into an accurate size without causing floating and deformation when an electric coil is formed. When the conductor wire material CW supplied from a wire material feed portion 3 is wound by turning a coil-winding mold 4 and is processed to fabricate an electric coil having a desired coil shape, the coil-winding mold 4 is linearly moved in a direction D away from the wire material feed portion 3 by a distance corresponding to a major side portion 40a to impart predetermined tension to the conductor wire material CW when a winding portion 40 of the coil-winding mold 4 on which the conductor wire material is wound is the major side portion 40a, and the coil-winding mold 4 is rotated when the winding portion 40 of the coil-winding mold 4 on which the conductor wire material is wound is a minor side portion 40b.Type: GrantFiled: September 26, 2002Date of Patent: June 22, 2004Assignee: Showa Electric Wire & Cable Co., Ltd.Inventors: Masahiro Nagai, Shiro Hasegawa
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Publication number: 20030098380Abstract: A conductor wire material CW is wound into an accurate size without causing floating and deformation when an electric coil is formed. When the conductor wire material CW supplied from a wire material feed portion 3 is wound by turning a coil-winding mold 4 and is processed to fabricate an electric coil having a desired coil shape, the coil-winding mold 4 is linearly moved in a direction D away from the wire material feed portion 3 by a distance corresponding to a major side portion 40a to impart predetermined tension to the conductor wire material CW when a winding portion 40 of the coil-winding mold 4 on which the conductor wire material is wound is the major side portion 40a, and the coil-winding mold 4 is rotated when the winding portion 40 of the coil-winding mold 4 on which the conductor wire material is wound is a minor side portion 40b.Type: ApplicationFiled: September 26, 2002Publication date: May 29, 2003Applicant: SHOWA ELECTRIC WIRE & CABLE CO., LTD.Inventors: Masahiro Nagai, Shiro Hasegawa
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Patent number: 6223405Abstract: A method of manufacturing an ink jet head includes the following steps, wherein the ink jet head is provided with a plurality of pressure chambers arranged continuously, ink feed means for feeding ink into these pressure chambers, and ink ejecting means for ejecting ink from each pressure chamber via a nozzle, so as to feed and eject ink by a change in volume of each pressure chamber. First, a first metallic film is formed on both surfaces of at least one wall composing the pressure chamber perpendicular to an arranging direction of the plurality of pressure chambers, wherein the at least one wall is one wall of a piezoelectric element deformed when a voltage is impressed. Then, the first metallic film formed on one of the both surfaces of at lest one wall is removed to form an exposed surface of the wall of the piezoelectric element.Type: GrantFiled: September 9, 1997Date of Patent: May 1, 2001Assignee: Fujitsu LimitedInventors: Koichi Oikawa, Jun Kodama, Akira Iwaishi, Masayuki Kato, Tomohisa Shingai, Yuji Yoshida, Kazuki Ogawa, Ryosuke Yabu, Isao Mizobuchi, Masahiro Nagai
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Patent number: 5335527Abstract: A two wheel type continuous extrusion apparatus has two rotary wheels having grooves receiving covering material rods, a fixed shoe block arranged therebetween and an abutement receiving a core metal wire. Covering material inlet apertures are provided for communicating passage-ways receiving the covering material rods to a covering chamber for extruding the covering material on the core metal wire to manufacture a composite metal wire. The covering material inlet apertures are inclined relative to a line connecting rotary axes of the rotary wheels such that the covering chamber is positioned on the side of supplying of the covering material rods relative to the connecting line. Consequently, a constraining force for constraining a shoe block becomes small.Type: GrantFiled: November 20, 1992Date of Patent: August 9, 1994Assignee: Hitachi Cable, Ltd.Inventors: Masahiro Nagai, Kazuo Abe, Tadashi Nireki, Hisanobu Yamagishi, Yasuhiko Miyake
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Patent number: 5000231Abstract: A yarn package changing method and an apparatus for carrying out the same, for use in combination with a loom which receives the weft yarn from a yarn package. The yarn package changing method carries out automatic yarn package changing operation through steps of removing an empty bobbin set in a yarn package changing position on a yarn package stand, by a yarn package transporting device, supplying a new yarn package to the yarn package stand by the yarn package transporting device, holding the leading end of the new yarn package at a predetermined position by a leading end positioning device; and setting the new yarn package in a feeding position on the yarn package stand.Type: GrantFiled: October 6, 1989Date of Patent: March 19, 1991Assignee: Tsudakoma Kogyo Kabushiki KaishaInventors: Tatsuo Takehana, Yasuyuki Tamatani, Masahiro Nagai
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Patent number: 4270373Abstract: A rod in the form of a composite metal wire having a harder metal core surrounded by a softer metal cladding is introduced together with lubricant into a die comprising an approach which includes a first frustoconical opening defining a vertical angle between 0.degree. and 5.degree. (exclusive of 0.degree.) and a second frustoconical opening defining a vertical angle between 6.degree. and 20.degree.. The lubricant is pressurized in the first frustoconical opening of the die approach while the rod is drawn under fluid lubrication.Type: GrantFiled: May 30, 1979Date of Patent: June 2, 1981Inventors: Motoshiro Hirato, Hazime Kawagoe, Kazuo Abe, Tsuyoshi Sato, Yasuhiko Miyake, Masahiro Nagai, Katsuhisa Furuichi, Kiyoshi Shimojima
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Patent number: 4242368Abstract: An improved method for manufacturing a composite metal wire including a core metal wire having extruded therearound a coating metal layer which is different in material from the core metal wire, includes feeding the coating metal into a narrow passageway which is defined between a circumferential groove formed on the outer edge of a rotary wheel and a close fitting surface of a fixed shoe block, carrying the coating metal towards an outlet end of the passageway by frictional drag with the surface of the passageway in accordance with the rotation of the wheel, and passing a core metal wire harder in material than the coating metal through a covering chamber of a larger cross sectional area which is provided with a die and a nipple at the front and rear portions, respectively, whereby the core metal wire is covered with the coating metal in the covering chamber so that a predetermined construction of a composite metal wire is extruded through the die.Type: GrantFiled: April 25, 1978Date of Patent: December 30, 1980Assignee: Hitachi Cable, Ltd.Inventors: Masahiro Nagai, Yasuhiko Miyake
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Patent number: 4217852Abstract: Apparatus for manufacturing a composite metal wire including a core metal wire having extruded therearound a coating metal layer which is different in material from the core metal wire. The coating metal is fed into a narrow passageway which is defined between a circumferential groove formed on the outer edge of a rotary wheel and a close fitting surface of a fixed shoe block, the cross-sectional area therebetween decreasing for half the distance between entry and discharge and thereafter increasing until discharge. The coating material is carried towards an outlet end of the passageway by frictional drag with the surface of the passageway in accordance with the rotation of the wheel.Type: GrantFiled: December 4, 1978Date of Patent: August 19, 1980Assignee: Hitachi Cable Ltd.Inventors: Masahiro Nagai, Yasuhiko Miyake
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Patent number: RE32385Abstract: Apparatus for manufacturing a composite metal wire including a core metal wire having extruded therearound a coating metal layer which is different in material from the core metal wire. The coating metal is fed into a narrow passageway which is defined between a circumferential groove formed on the outer edge of a rotary wheel and a close fitting surface of a fixed shoe block, the cross-sectional area therebetween decreasing for half the distance between entry and discharge and thereafter increasing until discharge. The coating metal is carried towards an outlet end of the passageway by frictional drag with the surface of the passageway in accordance with the rotation of the wheel.Type: GrantFiled: December 9, 1985Date of Patent: March 31, 1987Assignee: Hitachi Cable, Ltd.Inventors: Masahiro Nagai, Yasuhiko Miyake
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Patent number: RE32399Abstract: An improved method for manufacturing a composite metal wire including a core metal wire having extruded therearound a coating metal layer which is different in material from the core metal wire, includes feeding the coating metal into a narrow passageway which is defined between a circumferential groove formed on the outer edge of a rotary wheel and a close fitting surface of a fixed shoe block, carrying the coating metal towards an outlet end of the passageway by frictional drag with the surface of the passageway in accordance with the rotation of the wheel, and passing a core metal wire harder in material than the coating metal through a covering chamber of a larger cross sectional area which is provided with a die and a nipple at the front and rear portions, respectively, whereby the core metal wire is covered with the coating metal in the covering chamber so that a predetermined construction of a composite metal wire is extruded through the die.Type: GrantFiled: December 9, 1985Date of Patent: April 14, 1987Assignee: Hitachi Cable, Ltd.Inventors: Masahiro Nagai, Yasuhiko Miyake