Patents by Inventor Sohei Samejima
Sohei Samejima 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: 20240087483Abstract: A video display device (100) includes a board (1) on which light emitters (10) to emit light are mounted and a support (2) including a support film (20) receiving the board (1). The board (1) is installable to extend in a gravitational direction. The support (2) has an opening (5). The support film (20) has an installation surface on which the board (1) is installed and a non-installation surface opposite to the installation surface. The opening (5) in the support (2) penetrates the support (2) from the installation surface to the non-installation surface of the support film (20). The board (1) has an upper end fixed to the installation surface of the support film (20) and a lower end extending through the opening (5) and placed on the non-installation surface of the support film (20).Type: ApplicationFiled: January 22, 2021Publication date: March 14, 2024Applicant: Mitsubishi Electric CorporationInventors: Yohei ITO, Shigeru UTSUMI, Sohei SAMEJIMA, Satoru KIRIDOSHI
-
Publication number: 20230254946Abstract: An extensible mast according to the present disclosure includes a first fiber layer made of a fiber-reinforced plastic, a second fiber layer that is arranged in contact with the first fiber layer and made of a fiber-reinforced plastic having a thermal expansion coefficient in a longitudinal direction larger than a thermal expansion coefficient in the longitudinal direction of the fiber-reinforced plastic applied to the first fiber layer, and an electric heating wire arranged on the second fiber layer. The number of times of overlapping of the electric heating wire in different layers when the first fiber layer, the second fiber layer, and the electric heating wire are wound and retracted in a roll shape is minimized. Thus, the elastic restoring force of the extensible mast can be maintained while an increase in weight and volume is suppressed.Type: ApplicationFiled: August 3, 2020Publication date: August 10, 2023Applicant: Mitsubishi Electric CorporationInventors: Kazunori TAKAGAKI, Sohei SAMEJIMA, Kazushi SEKINE
-
Publication number: 20230117799Abstract: A stator coil mounted to a rotating electric machine stator core includes a plurality of coil conductors. A thickness in a radial direction at coil end portions of the coil conductors provided on at least one end surface side in an axial direction of the stator core is equal to a thickness in the radial direction of slot insert portions of the coil conductors to be inserted into slots of the stator core. A width in a circumferential direction of the coil conductors at ends in the circumferential direction of the coil end portions is greater than a width in the circumferential direction of the coil conductors at the slot insert portions.Type: ApplicationFiled: April 27, 2020Publication date: April 20, 2023Applicant: Mitsubishi Electric CorporationInventors: Yohei ITO, Sohei SAMEJIMA
-
Publication number: 20230105055Abstract: A solar array wing includes an extension mast to be extended from a wound state, and a support member, around which the extension mast is wound, to support the extension mast after the extension mast is extended. The support member is made of a fiber reinforced composite material. A coefficient of linear expansion of the fiber reinforced composite material, a unit of which is for each degree Celsius, in a direction that is orthogonal to an extension direction of the extension mast, is higher than or equal to ?1×10?6 and lower than or equal to 1×10?6.Type: ApplicationFiled: April 24, 2020Publication date: April 6, 2023Applicant: Mitsubishi Electric CorporationInventors: Tatsuya KOYAMA, Hiroki KOBAYASHI, Kazunori TAKAGAKI, Sohei SAMEJIMA
-
Publication number: 20230020028Abstract: An LED board includes a flexible printed circuit and multiple LED-mounted parts arrayed on the circuit board at regular intervals in a constant direction. The LED-mounted parts each include multiple LEDs. The circuit board includes LED portions including the LED-mounted parts and non-LED portions including no LED-mounted parts that are arrayed alternately. The LED-mounted parts each have, in an array direction in which the LED-mounted parts are arrayed, a dimension equal to an interval between adjacent LED-mounted parts of the arrayed LED-mounted parts. A surface emitter includes multiple LED boards fitted together, with LED-mounted parts on each LED board overlapping non-LED portions of an adjacent LED board of the LED boards. The LED board and the surface emitter with the above structures easily upsize a video display device.Type: ApplicationFiled: January 9, 2020Publication date: January 19, 2023Applicant: Mitsubishi Electric CorporationInventors: Yohei ITO, Sohei SAMEJIMA, Satoru KIRIDOSHI
-
Publication number: 20220412533Abstract: In a vacuum valve, as a heat dissipation structure thereof, a heat dissipation layer is provided to a part of the surface of each of a fixed conductor and a movable conductor which are a heat generation part, and a radiation heat absorption layer is provided to an insulation cylinder so as to be opposed to the heat dissipation layer. The heat dissipation layer and the radiation heat absorption layer are each formed from a ceramic having a high emissivity. Heat generated at the fixed conductor and the movable conductor is radiated by the heat dissipation layer, to be absorbed by the radiation heat absorption layer, and then radiated to the outside of the vacuum valve from the radiation heat absorption layer and a ceramic layer.Type: ApplicationFiled: April 13, 2020Publication date: December 29, 2022Applicant: Mitsubishi Electric CorporationInventors: Katsuya JINNO, Motoki MASAKI, Sohei SAMEJIMA
-
Publication number: 20220260429Abstract: To provide a temperature measurement system, which is capable of preventing distortion that occurs in a temperature measurement object from being transmitted to an optical fiber, and improving responsiveness of heat transfer from the temperature measurement object to the optical fiber. The temperature measurement system includes: a temperature measurement object; an optical fiber provided on the temperature measurement object; an intermediate material provided on the optical fiber; and a pressing jig which is provided on the temperature measurement object, and is configured to press the optical fiber against the temperature measurement object through intermediation of the intermediate material, wherein the optical fiber is expandable and contractible in a longitudinal direction of the optical fiber due to a change in a temperature of the optical fiber with respect to the temperature measurement object and the intermediate material.Type: ApplicationFiled: July 30, 2019Publication date: August 18, 2022Applicant: Mitsubishi Electric CorporationInventors: Masahiro MIYASHITA, Kazushi SEKINE, Sohei SAMEJIMA
-
Publication number: 20220156439Abstract: Provided is a method of designing a composite material laminated structure, the method including: a machine learning step of performing machine learning on a plurality of pieces of data each of which includes a pair of a physical property value of the composite material laminated structure and a laminate configuration of the composite material laminated structure, to obtain a relational expression depicting a relationship between the physical property value and the laminate configuration, the composite material laminated structure including a plurality of layers that are laminated; and a laminate configuration information calculation step of calculating, based on the relational expression and an objective value of the physical property value, laminate configuration information which is information of the laminate configuration that enables the objective value to be obtained.Type: ApplicationFiled: April 22, 2019Publication date: May 19, 2022Applicant: Mitsubishi Electric CorporationInventors: Kazunori TAKAGAKI, Kazushi SEKINE, Sohei SAMEJIMA
-
Publication number: 20210047057Abstract: The pipe structure according to the present invention includes: a fiber-reinforced plastic pipe 5; moisture-proof foils 11, 12 which individually cover an outer circumferential surface of the pipe 5 and an inner circumferential surface thereof; and an intermediate part 4 which is made of metal and fitted to an end of the pipe 5, wherein end portions of the moisture-proof foils 11, 12 are tightly sandwiched between the pipe 5 and the intermediate part 4. This configuration reliably prevents an FRP pipe from absorbing moisture, and thus, prevents the FRP pipe from shrinking due to moisture exhaustion in outer space, whereby it is possible to obtain the pipe structure having excellent dimensional stability.Type: ApplicationFiled: April 26, 2019Publication date: February 18, 2021Applicant: Mitsubishi Electric CorporationInventors: Kazunori TAKAGAKI, Kazushi SEKINE, Masami KUME, Sohei SAMEJIMA
-
Patent number: 10700247Abstract: A display device includes a substrate, light-emitting elements that emit visible light, and a protective film that is waterproof, has transmissivity to visible light, and has weather resistance. The light-emitting elements are arrayed in a regular manner and separated from each other on one surface of the substrate. The protective film covers each of the light-emitting elements and closely adheres to the one surface of the substrate between the light-emitting elements. Each of the light-emitting elements includes light emitting diodes covered with a resin having a weather resistivity that is lower than a weather resistivity of the protective film.Type: GrantFiled: June 29, 2016Date of Patent: June 30, 2020Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Satoru Kiridoshi, Sohei Samejima, Tsuyoshi Tanabe
-
Patent number: 10443608Abstract: The impeller includes a blade formed either entirely or partially from fiber reinforced plastic, a boss member that supports the blade, a plate that presses a root portion of the blade against the boss member; and a fastening portion that fastens the boss member to the plate, wherein the root portion of the blade has an undercut shape, the boss member has an excavated portion, the excavated portion is shaped identically to all or a part of the undercut shape or shaped such that a gap is formed between the excavated shape and all or a part of the undercut shape, and the root portion of the blade is fastened by a fastening force via the boss portion and the plate in a condition where a clearance is provided between the boss member and the plate.Type: GrantFiled: March 25, 2016Date of Patent: October 15, 2019Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Hiroki Kobayashi, Kosuke Umemura, Sohei Samejima, Kenichi Sakoda, Haruhiko Kakutani, Ichiya Takahashi
-
Publication number: 20190165223Abstract: A display device includes a substrate, light-emitting elements that emit visible light, and a protective film that is waterproof, has transmissivity to visible light, and has weather resistance. The light-emitting elements are arrayed in a regular manner and separated from each other on one surface of the substrate. The protective film covers each of the light-emitting elements and closely adheres to the one surface of the substrate between the light-emitting elements. Each of the light-emitting elements includes light emitting diodes covered with a resin having a weather resistivity that is lower than a weather resistivity of the protective film.Type: ApplicationFiled: June 29, 2016Publication date: May 30, 2019Applicant: Mitsubishi Electric CorporationInventors: Satoru KIRIDOSHI, Sohei SAMEJIMA, Tsuyoshi TANABE
-
Patent number: 10099460Abstract: A method for producing a preform for manufacture of a fiber-reinforced plastic molding. The method includes: fixing a resin-equipped film rolled out from a roll state including a release film and a fixing resin and containing a partially-cured thermosetting resin, to a surface of the dry fiber fabric rolled out from a roll with the fixing resin interposed therebetween, thereby obtaining a first dry fiber fabric; separately fixing the resin-equipped film to a surface of the dry fiber fabric rolled out from a roll with the fixing resin interposed therebetween, and detaching the release film, thereby obtaining one or more second dry fiber fabrics; and laminating the second dry fiber fabrics on a surface of the first dry fiber fabric with the fixing resin of the second dry fiber fabrics interposed therebetween.Type: GrantFiled: September 6, 2012Date of Patent: October 16, 2018Assignee: Mitsubishi Electric CorporationInventors: Sohei Samejima, Hajime Takeya, Michihito Matsumoto, Hiroki Kobayashi, Kazuki Kubo, Yuhei Awano, Takahiro Mabuchi
-
Patent number: 9643365Abstract: A cover for an air conditioning device for a railway vehicle is a cover for an air conditioning device for a vehicle, which covers an air-conditioner main body. The cover includes a core made of a foamed material having heat insulating property, and a surface member made of a fiber reinforced plastic, which covers entire surfaces of the core. The core is deformed into a curved shape by elastic deformation.Type: GrantFiled: May 14, 2013Date of Patent: May 9, 2017Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Hiroki Kobayashi, Shinsuke Okano, Kosuke Umemura, Hajime Takeya, Masami Kume, Sohei Samejima, Michihito Matsumoto
-
Publication number: 20170105289Abstract: On a printed wiring board obtained by a method of manufacturing a printed board, a predetermined component is to be mounted on at least one of a front surface side and a back surface side. The manufacturing method includes preparing a CFRP core, forming a through hole so as to penetrate the CFRP core from the front surface side to the back surface side and include a region in which the component is to be mounted when viewed in a plan view, and embedding a GFRP core having insulating properties within the through hole by filling the through hole with a resin having insulating properties and curing the resin. According to the manufacturing method, the component mounted on the printed board is not affected by a stray capacitance due to a CFRP, and it is not difficult to form a circuit.Type: ApplicationFiled: October 21, 2016Publication date: April 13, 2017Applicant: Mitsubishi Electric CorporationInventors: Hiroyuki OSUGA, Sohei SAMEJIMA, Kazuhito SAKURADA, Akira YAGASAKI, Tatsuya HINATA
-
Patent number: 9532444Abstract: On a printed wiring board obtained by a method of manufacturing a printed board, a predetermined component is to be mounted on at least one of a front surface side and a back surface side. The manufacturing method includes preparing a CFRP core, forming a through hole so as to penetrate the CFRP core from the front surface side to the back surface side and include a region in which the component is to be mounted when viewed in a plan view, and embedding a GFRP core having insulating properties within the through hole by filling the through hole with a resin having insulating properties and curing the resin. According to the manufacturing method, the component mounted on the printed board is not affected by a stray capacitance due to a CFRP, and it is not difficult to form a circuit.Type: GrantFiled: February 23, 2011Date of Patent: December 27, 2016Assignees: Mitsubishi Electric Corporation, NIPPON AVIONICS CO., LTD.Inventors: Hiroyuki Osuga, Sohei Samejima, Kazuhito Sakurada, Akira Yagasaki, Tatsuya Hinata
-
Publication number: 20160290138Abstract: The impeller includes a blade formed either entirely or partially from fiber reinforced plastic, a boss member that supports the blade, a plate that presses a root portion of the blade against the boss member; and a fastening portion that fastens the boss member to the plate, wherein the root portion of the blade has an undercut shape, the boss member has an excavated portion, the excavated portion is shaped identically to all or a part of the undercut shape or shaped such that a gap is formed between the excavated shape and all or a part of the undercut shape, and the root portion of the blade is fastened by a fastening force via the boss portion and the plate in a condition where a clearance is provided between the boss member and the plate.Type: ApplicationFiled: March 25, 2016Publication date: October 6, 2016Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Hiroki KOBAYASHI, Kosuke UMEMURA, Sohei SAMEJIMA, Kenichi SAKODA, Haruhiko KAKUTANI, lchiya TAKAHASHI
-
Publication number: 20160129676Abstract: A fiber reinforced plastic including: a first fiber reinforced plastic layer including a first fiber fabric and a resin impregnated into the first fiber fabric; a resin flow layer including an inner medium and a resin, the resin flow layer being laminated on the first fiber reinforced plastic layer; a second fiber reinforced plastic layer including a second fiber fabric and a resin impregnated into the second fiber fabric, the second fiber reinforced plastic layer being laminated on the resin flow layer so that the resin flow layer is arranged between the first fiber reinforced plastic layer and the second fiber reinforced plastic layer; and an inorganic filler layer including an inorganic filler having a particle diameter of 20 ?m or more and 50 ?m or less and a resin, the inorganic filler layer being laminated on the second fiber reinforced plastic layer.Type: ApplicationFiled: June 4, 2014Publication date: May 12, 2016Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Sohei SAMEJIMA, Hiroki KOBAYASHI, Hajime TAKEYA
-
Patent number: D840555Type: GrantFiled: November 7, 2016Date of Patent: February 12, 2019Assignee: Mitsubishi Electric CorporationInventors: Satoru Kiridoshi, Tsuyoshi Tanabe, Sohei Samejima, Hironobu Kawaguchi
-
Patent number: D840556Type: GrantFiled: July 9, 2018Date of Patent: February 12, 2019Assignee: Mitsubishi Electric CorporationInventors: Satoru Kiridoshi, Tsuyoshi Tanabe, Sohei Samejima, Hironobu Kawaguchi