Patents by Inventor Masahiro Tsukamoto
Masahiro Tsukamoto 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).
-
Publication number: 20240141090Abstract: An unsaturated polyester resin composition contains an unsaturated polyester, a vinyl ester, a polymerizable monomer, and an aluminum hydroxide. The vinyl ester is a reaction product of an epoxy resin and an unsaturated monobasic acid. The vinyl ester is blended in a predetermined ratio to the unsaturated polyester. The aluminum hydroxide is blended in a predetermined ratio to the vinyl ester.Type: ApplicationFiled: November 9, 2020Publication date: May 2, 2024Inventors: Ikuo AKAI, Masahiro HAKOTANI, Takashi TSUKAMOTO
-
Publication number: 20240134130Abstract: A ferrule is formed with an optical fiber insertion hole into which an optical fiber is inserted, and includes a resin composition containing a thermoplastic resin and a filler, wherein a size of coarse particles originated from the filler is 50 ?m or less, or a size of aggregates originated from the filler is 50 ?m or less.Type: ApplicationFiled: December 13, 2023Publication date: April 25, 2024Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Masayoshi TSUKAMOTO, Takahiro MIURA, Masahiro HANDA
-
Patent number: 11962192Abstract: An electric motor includes: a permanent magnet; a rotor including a first rotor core having a first electrical steel sheet and a second rotor core having a second electrical steel sheet; and a stator including a stator core. The first electrical steel sheet is located outside the stator core. A relationship among a minimum width BL1 of a first left bridge, a thickness tL1 of the first left bridge, a minimum width BR1 of a first right bridge, a thickness tR1 of the first right bridge, a minimum width BL2 of a second left bridge, a thickness tL2 of the second left bridge, a minimum width BR2 of a second right bridge, and a thickness tR2 of the second right bridge satisfies (BL1×tL1+BR1×tR1)>(BL2×tL2+BR2×tR2).Type: GrantFiled: July 30, 2019Date of Patent: April 16, 2024Assignee: Mitsubishi Electric CorporationInventors: Emi Tsukamoto, Masahiro Nigo
-
Patent number: 11949291Abstract: A motor includes a stator core having an annular shape about an axis, a coil wound on the stator core, and a rotor core disposed on an inner side of the stator core in a radial direction about the axis. The rotor core has a stacked body in which a plurality of steel laminations are stacked in a direction of the axis, and a magnet insertion hole famed in the stacked body. The rotor core has a length in the direction of the axis longer than that of the stator core. A magnet is inserted in the magnet insertion hole. The rotor core has a first region where the magnet is inserted in the magnet insertion hole and a second region where the magnet is not inserted in the magnet insertion hole, in the direction of the axis. At least one steel lamination in the second region of the rotor core has an opening area smaller than an opening area of each steel lamination in the first region of the rotor core.Type: GrantFiled: February 22, 2019Date of Patent: April 2, 2024Assignee: Mitsubishi Electric CorporationInventors: Emi Tsukamoto, Masahiro Nigo
-
Patent number: 11865637Abstract: A laser machining device includes a plurality of optical fibers and a collimator lens arranged in parallel along a supply nozzle for supplying a molten material, and a laser beam projected from the optical fiber is applied onto an axis between a tip of the supply nozzle and a build-up welding spot.Type: GrantFiled: March 30, 2017Date of Patent: January 9, 2024Assignees: MURATANI MACHINE INC., ISHIKAWA PREFECTURE, OSAKA UNIVERSITYInventors: Sotohiro Muratani, Masahiro Tsukamoto, Yoshinori Funada, Yorihiro Yamashita
-
Publication number: 20230050577Abstract: A laser welding method is usable to weld a material containing copper as a main component. The laser welding method includes heating the material by irradiation with a first laser light and welding the material by irradiation of a portion, which has been irradiated with the first laser light, of the material with a second laser light with which an energy absorption rate of the copper contained in the material increases by an increase in a temperature of the material. A wavelength of the first laser light is 400 nm to 470 nm.Type: ApplicationFiled: October 28, 2022Publication date: February 16, 2023Inventors: Masatoshi ITOU, Takashi NISHIKAWA, Masahiro TSUKAMOTO, Yuji SATO, Tetsuo SUGA
-
Patent number: 11567272Abstract: This optical coupling device couples a plurality of beams to a single fiber. A plurality of light sources is arranged at predetermined intervals and emits the plurality of beams. A plurality of collimating lens is arranged to face the plurality of light sources and collimates the plurality of beams emitted from the plurality of light sources. A reduction optical system reduces the beam diameter of the plurality of beams collimated by the plurality of collimating lens. A focusing lens focuses the plurality of beams reduced by the reduction optical system on a fiber. A first distance between the light source and the collimating lens arranged so as to correspond to a beam passing through the center of the reduction optical system is different from a second distance between the light source and the collimating lens arranged so as to correspond to a beam passing through the end portion of the reduction optical system.Type: GrantFiled: August 23, 2018Date of Patent: January 31, 2023Assignees: Shimadzu Corporation, Osaka UniversityInventors: Naoki Wakabayashi, Koji Tojo, Masahiro Tsukamoto
-
Publication number: 20220297230Abstract: A laser apparatus includes six first laser devices that output respective blue laser beams for preliminary heating of an object, and a second laser device that outputs an infrared laser beam for main heating of the object. At least one of a relative positional relationship and each of respective first irradiation positions of the blue laser beams is changeable, the relative positional relationship being a relative positional relationship between the respective first irradiation positions of the six first laser beams in the object and a second irradiation position of the infrared laser beam in the object.Type: ApplicationFiled: March 14, 2022Publication date: September 22, 2022Inventors: Masahiro TSUKAMOTO, Yuji SATO, Keisuke TAKENAKA, Ritsuko HIGASHINO, Koji TOJO
-
Publication number: 20220142875Abstract: The present invention provides a dental glass ionomer cement composition which can improve the mixing efficiency of a powder and a liquid to an extent where their powder to liquid ratio can be raised in mechanical mixing without reducing a fluoride-release property, and further expresses a high mechanical property. More specifically, the present invention provides a dental glass ionomer cement composition in which a powder and a liquid are separately packaged in a dental capsule, and the powder and the liquid are used by mixing immediately before their use, wherein the composition comprises (a) a hydrophobized acid reactive glass powder, (b) a polyalkene acid, and (c) water, and is not accompanied by a polymerization reaction upon setting.Type: ApplicationFiled: November 5, 2021Publication date: May 12, 2022Applicant: KABUSHIKI KAISHA SHOFUInventors: Masahiro TSUKAMOTO, Shuji SAKAMOTO, Katsuya KIMOTO
-
Publication number: 20210247573Abstract: This optical coupling device couples a plurality of beams to a single fiber. A plurality of light sources is arranged at predetermined intervals and emits the plurality of beams. A plurality of collimating lens is arranged to face the plurality of light sources and collimates the plurality of beams emitted from the plurality of light sources. A reduction optical system reduces the beam diameter of the plurality of beams collimated by the plurality of collimating lens. A focusing lens focuses the plurality of beams reduced by the reduction optical system on a fiber. A first distance between the light source and the collimating lens arranged so as to correspond to a beam passing through the center of the reduction optical system is different from a second distance between the light source and the collimating lens arranged so as to correspond to a beam passing through the end portion of the reduction optical system.Type: ApplicationFiled: August 23, 2018Publication date: August 12, 2021Inventors: Naoki WAKABAYASHI, Koji TOJO, Masahiro TSUKAMOTO
-
Patent number: 10695862Abstract: A laser processing apparatus for processing a plate-shaped workpiece by applying a laser beam to the workpiece, includes a cassette table for placing thereon a cassette in which a plurality of workpieces are accommodated, a carrying-out unit for carrying out the workpiece from the cassette placed on the cassette table, and a laser beam applying unit including a focusing unit for applying the laser beam to the workpiece held on the chuck table. The carrying-out unit carries out the workpiece having been processed by the laser beam applying unit from the chuck table, and accommodates the workpiece into the cassette placed on the cassette table.Type: GrantFiled: December 12, 2017Date of Patent: June 30, 2020Assignee: DISCO CORPORATIONInventors: Hiroshi Nomura, Masahiro Tsukamoto
-
Patent number: 10629462Abstract: A wafer processing system includes a laser processing apparatus, a grinding apparatus, a tape sticking apparatus, a first cassette placement part, a second cassette placement part, a conveying unit that conveys a wafer, and a controller that controls the respective constituent elements. The controller includes a first processing program instructing section that conveys a wafer unloaded from a first cassette in order of the laser processing apparatus, the grinding apparatus, the tape sticking apparatus, and a second cassette and sequentially carries out processing by each apparatus for the one wafer, and a second processing program instructing section that conveys the wafer unloaded from the first cassette in order of the grinding apparatus, the laser processing apparatus, the tape sticking apparatus, and the second cassette and sequentially carries out processing by each apparatus for the one wafer.Type: GrantFiled: June 8, 2017Date of Patent: April 21, 2020Assignee: DISCO CORPORATIONInventors: Ken Togashi, Masahiro Tsukamoto
-
Publication number: 20190111517Abstract: A laser machining device includes a plurality of optical fibers and a collimator lens arranged in parallel along a supply nozzle for supplying a molten material, and a laser beam projected from the optical fiber is applied onto an axis between a tip of the supply nozzle and a build-up welding spot.Type: ApplicationFiled: March 30, 2017Publication date: April 18, 2019Inventors: Sotohiro MURATANI, Masahiro TSUKAMOTO, Yoshinori FUNADA, Yorihiro YAMASHITA
-
Patent number: 10242904Abstract: A frame unit is transferred from a cassette to a predetermined position. The frame unit has a platelike workpiece, a tape attached to the workpiece, and a ring frame supporting a peripheral portion of the tape. The apparatus includes a holding unit for the frame unit, a moving unit for the holding unit, and a control unit. The holding unit includes a pair of gripping portions for gripping a front portion of the ring frame at two separate positions, and an abutting portion adapted to abut against the outer circumference of the ring frame. The ring frame is gripped, partially drawn from the cassette, and released. The abutting portion is brought into abutment against the outer circumference of the ring frame so as to move the ring frame into the cassette. The ring frame is gripped again, raised, and transferred to the predetermined position.Type: GrantFiled: October 25, 2017Date of Patent: March 26, 2019Assignee: Disco CorporationInventors: Masahiro Tsukamoto, Ken Togashi
-
Patent number: 10107232Abstract: A method for driving an internal combustion engine is a method for reducing nitrogen oxides in emissions of the internal combustion engine, and includes a process of introducing air, which has a low oxygen concentration and contains no emissions, into the internal combustion engine, and a process of mixing humidifying water with a hydrocarbon fuel and injecting the mixture into a combustion chamber of the internal combustion engine as an emulsion fuel.Type: GrantFiled: September 26, 2013Date of Patent: October 23, 2018Assignee: Asahi Kasei Chemicals CorporationInventors: Atsushi Shimizu, Hirokazu Ohno, Tomohiro Niihama, Masahiro Tsukamoto
-
Patent number: 10094951Abstract: Apparatus determines whether a stored object is a wafer alone or a frame unit formed by uniting the wafer and a ring frame. The apparatus includes first and second detecting units, the second detecting unit being stored more shallowly than the first detecting unit. The apparatus determines whether light transmitted by the first detecting unit is blocked by the object and does not reach a light receiving portion of the first detecting unit. When light transmitted from the second detecting unit is blocked by the object and does not reach a light receiving portion of the second detecting unit, the apparatus determines that the object is the frame unit, whereas when the light transmitted from the second detecting unit is not blocked by the object and reaches the light receiving portion of the second detecting unit, the apparatus determines that the object is the wafer.Type: GrantFiled: August 1, 2017Date of Patent: October 9, 2018Assignee: DISCO CORPORATIONInventors: Ken Togashi, Masahiro Tsukamoto
-
Publication number: 20180161920Abstract: Disclosed herein is a laser processing apparatus for processing a plate-shaped workpiece by applying a laser beam to the workpiece. The laser processing apparatus includes a cassette table for placing thereon a cassette in which a plurality of workpieces are accommodated, a carrying-out unit for carrying out the workpiece from the cassette placed on the cassette table, and a laser beam applying unit including a focusing unit for applying the laser beam to the workpiece held on the chuck table. The carrying-out unit carries out the workpiece having been processed by the laser beam applying unit from the chuck table, and accommodates the workpiece into the cassette placed on the cassette table.Type: ApplicationFiled: December 12, 2017Publication date: June 14, 2018Inventors: Hiroshi Nomura, Masahiro Tsukamoto
-
Publication number: 20180130688Abstract: A frame unit is transferred from a cassette to a predetermined position. The frame unit has a platelike workpiece, a tape attached to the workpiece, and a ring frame supporting a peripheral portion of the tape. The apparatus includes a holding unit for the frame unit, a moving unit for the holding unit, and a control unit. The holding unit includes a pair of gripping portions for gripping a front portion of the ring frame at two separate positions, and an abutting portion adapted to abut against the outer circumference of the ring frame. The ring frame is gripped, partially drawn from the cassette, and released. The abutting portion is brought into abutment against the outer circumference of the ring frame so as to move the ring frame into the cassette. The ring frame is gripped again, raised, and transferred to the predetermined position.Type: ApplicationFiled: October 25, 2017Publication date: May 10, 2018Inventors: Masahiro Tsukamoto, Ken Togashi
-
Patent number: 9931902Abstract: A stabilizer bushing has a holding hole for holding a stabilizer bar and is to be mounted on a mounting surface of a vehicle-body-side component. A normal line to the mounting surface extends in a direction intersecting an up and down direction of a vehicle. The stabilizer bushing has at least one separation surface, one end portion of which is located on an inner circumferential surface opposed to the holding hole, and the other end portion of which is located on an outer surface of the stabilizer bushing at a position different from a rigid-component opposed portion opposed to the vehicle-body-side component. The at least one separation surface has a first separation surface located nearer to the rigid-component opposed portion than a plane extending through a central axis of the holding hole and parallel with the rigid-component opposed portion.Type: GrantFiled: March 8, 2016Date of Patent: April 3, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masahiro Tsukamoto, Satoshi Uchida
-
Publication number: 20180045851Abstract: Apparatus determines whether a stored object is a wafer alone or a frame unit formed by uniting the wafer and a ring frame. The apparatus includes first and second detecting units, the second detecting unit being stored more shallowly than the first detecting unit. The apparatus determines whether light transmitted by the first detecting unit is blocked by the object and does not reach a light receiving portion of the first detecting unit. When light transmitted from the second detecting unit is blocked by the object and does not reach a light receiving portion of the second detecting unit, the apparatus determines that the object is the frame unit, whereas when the light transmitted from the second detecting unit is not blocked by the object and reaches the light receiving portion of the second detecting unit, the apparatus determines that the object is the wafer.Type: ApplicationFiled: August 1, 2017Publication date: February 15, 2018Inventors: Ken Togashi, Masahiro Tsukamoto