Patents by Inventor Masahiro Fukuta
Masahiro Fukuta 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: 20240100846Abstract: A cartridge configured to be inserted in a first direction into a case having a plurality of engagement portions is provided. The cartridge has a body and a key member. The body has a chamber for storing a printing agent. The key member is located on the body at a position associated with a type of the printing agent stored in the chamber and is configured to engage with a corresponding one of the plurality of engagement portions of the case. The key member has a surface facing a second direction opposite to the first direction. The surface is configured to contact the corresponding one of the plurality of engagement portions.Type: ApplicationFiled: September 27, 2023Publication date: March 28, 2024Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Masahiro HAYASHI, Naoya OKAZAKI, Yuma TANABE, Satoru OKI, Yuji FUKUTA
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Publication number: 20240100847Abstract: A printing-agent container, having a container body, an outflow port, and an identifying portion, is provided. The container body has a chamber for containing a printing agent. Through the outflow port, the printing agent flows out of the chamber. The identifying portion is provided to the container body correspondingly to a type of the printing agent contained in the chamber of the container body. The identifying portion has an inner surface defining the chamber.Type: ApplicationFiled: September 27, 2023Publication date: March 28, 2024Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Masahiro HAYASHI, Naoya OKAZAKI, Yuma TANABE, Satoru OKI, Yuji FUKUTA
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Patent number: 11929230Abstract: A large current electron beam is stably emitted from an electron gun of a charged particle beam device. The electron gun of the charged particle beam device includes: a SE tip 202; a suppressor 303 disposed rearward of a distal end of the SE tip; a cup-shaped extraction electrode 204 including a bottom surface and a cylindrical portion and enclosing the SE tip and the suppressor; and an insulator 208 holding the suppressor and the extraction electrode. A shield electrode 301 of a conductive metal having a cylindrical portion 302 is provided between the suppressor and the cylindrical portion of the extraction electrode. A voltage lower than a voltage of the SE tip is applied to the shield electrode.Type: GrantFiled: April 18, 2019Date of Patent: March 12, 2024Assignee: HITACHI HIGH-TECH CORPORATIONInventors: Keigo Kasuya, Akira Ikegami, Kazuhiro Honda, Masahiro Fukuta, Takashi Doi, Souichi Katagiri, Aki Takei, Soichiro Matsunaga
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Publication number: 20230343549Abstract: The present invention overcomes a trade-off between throughput, SNR, and spatial resolution in a charged particle beam device. Accordingly, a computer 18 sets at least one of a charged particle optical system and a detection system so as to modulate the intensity of signal charged particles or an electromagnetic wave detected by a detector 12 at a prescribed frequency. The charged particle optical system scans a specimen with a charged particle beam. The computer 18 generates an image or a signal profile by associating an irradiation position of the charged particle beam with a DC component of a signal acquired through synchronous detection of a detection signal from the detector at the irradiation position with a reference signal having a prescribed frequency.Type: ApplicationFiled: October 26, 2021Publication date: October 26, 2023Inventors: Masahiro FUKUTA, Tomoyo SASAKI, Makoto SUZUKI, Masashi WADA, Hiroshi NISHIHAMA
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Publication number: 20230238205Abstract: A charged particle source is provided that exhibits small energy dispersion for charged particle beams emitted under a high angular current density condition and allows stable acquisition of large charged particle currents even for a small light source diameter. The charged particle source has a spherical virtual cathode surface from which charged particles are emitted, and the virtual cathode surface for charged particles emitted from a first position on a tip end surface of an emitter and the virtual cathode surface for charged particles emitted from a second position on the tip end surface of the emitter match each other.Type: ApplicationFiled: April 4, 2023Publication date: July 27, 2023Inventors: Masahiro FUKUTA, Kazuhiro HONDA
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Publication number: 20230178325Abstract: An electron gun 901 capable of suppressing an uneven temperature distribution at an extraction electrode and a length-measuring SEM 900 are provided. The electron gun 901 is equipped with: a charged particle source 1; an extraction electrode 3 for extracting charged particles from the charged particle source 1 and allowing some of the charged particles to pass while blocking some other charged particles; and an auxiliary structure 5 disposed in contact with the extraction electrode 3. The length-measuring SEM 900 is equipped with the electron gun 901 and a computer system 920 for controlling the electron gun 901.Type: ApplicationFiled: April 23, 2020Publication date: June 8, 2023Inventors: Masahiro FUKUTA, Keigo KASUYA, Noriaki ARAI
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Patent number: 11651929Abstract: The purpose of the present invention is to provide a charged particle source that exhibits small energy dispersion for charged particle beams emitted under a high angular current density condition and allows stable acquisition of large charged particle currents even for a small light source diameter. The charged particle source according to the present invention has a spherical virtual cathode surface from which charged particles are emitted, and the virtual cathode surface for charged particles emitted from a first position on a tip end surface of an emitter and the virtual cathode surface for charged particles emitted from a second position on the tip end surface of the emitter match each other (see FIG. 4).Type: GrantFiled: December 5, 2018Date of Patent: May 16, 2023Assignee: Hitachi High-Tech CorporationInventors: Masahiro Fukuta, Kazuhiro Honda
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Publication number: 20220199349Abstract: A large current electron beam is stably emitted from an electron gun of a charged particle beam device. The electron gun of the charged particle beam device includes: a SE tip 202; a suppressor 303 disposed rearward of a distal end of the SE tip; a cup-shaped extraction electrode 204 including a bottom surface and a cylindrical portion and enclosing the SE tip and the suppressor; and an insulator 208 holding the suppressor and the extraction electrode. A shield electrode 301 of a conductive metal having a cylindrical portion 302 is provided between the suppressor and the cylindrical portion of the extraction electrode. A voltage lower than a voltage of the SE tip is applied to the shield electrode.Type: ApplicationFiled: April 18, 2019Publication date: June 23, 2022Applicant: Hitachi High-Tech CorporationInventors: Keigo KASUYA, Akira IKEGAMI, Kazuhiro HONDA, Masahiro FUKUTA, Takashi DOI, Souichi KATAGIRI, Aki TAKEI, Soichiro MATSUNAGA
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Patent number: 11201033Abstract: To provide a charged particle beam device capable of preventing generation of geometric aberration by aligning axes of electrostatic lenses with high accuracy even when center holes of respective electrodes which constitute the electrostatic lens are not disposed coaxially. The charged particle beam device according to the invention includes an electrostatic lens disposed between an acceleration electrode and an objective lens, wherein at least one of the electrodes which constitutes the electrostatic lens is formed of a magnetic body, and two or more magnetic field generating elements are disposed along an outer periphery of the electrode.Type: GrantFiled: October 25, 2019Date of Patent: December 14, 2021Assignee: Hitachi High-Tech CorporationInventors: Yuta Kawamoto, Akira Ikegami, Masahiro Fukuta
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Publication number: 20210296076Abstract: The purpose of the present invention is to provide a charged particle source that exhibits small energy dispersion for charged particle beams emitted under a high angular current density condition and allows stable acquisition of large charged particle currents even for a small light source diameter. The charged particle source according to the present invention has a spherical virtual cathode surface from which charged particles are emitted, and the virtual cathode surface for charged particles emitted from a first position on a tip end surface of an emitter and the virtual cathode surface for charged particles emitted from a second position on the tip end surface of the emitter match each other (see FIG. 4).Type: ApplicationFiled: December 5, 2018Publication date: September 23, 2021Inventors: Masahiro FUKUTA, Kazuhiro HONDA
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Publication number: 20200185186Abstract: To provide a charged particle beam device capable of preventing generation of geometric aberration by aligning axes of electrostatic lenses with high accuracy even when center holes of respective electrodes which constitute the electrostatic lens are not disposed coaxially. The charged particle beam device according to the invention includes an electrostatic lens disposed between an acceleration electrode and an objective lens, wherein at least one of the electrodes which constitutes the electrostatic lens is formed of a magnetic body, and two or more magnetic field generating elements are disposed along an outer periphery of the electrode.Type: ApplicationFiled: October 25, 2019Publication date: June 11, 2020Inventors: Yuta KAWAMOTO, Akira IKEGAMI, Masahiro FUKUTA
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Patent number: 10593965Abstract: A method for manufacturing a resin-framed membrane electrode assembly including a stepped MEA and a resin frame member, the method includes using a first suction mechanism to hold the stepped MEA on a worktable. The stepped MBA includes a solid polymer electrolyte membrane sandwiched between a first electrode and a second electrode having an area smaller than an area of the first electrode. A second suction mechanism is used to hold a film member including the frame-shaped adhesive layer to be placed on the stepped MEA held by the first suction mechanism. The film member is peeled from the stepped MEA after the frame-shaped adhesive layer has been affixed to the stepped MEA. The resin frame member is joined to an outer peripheral surface of the solid polymer electrolyte membrane of the stepped MEA via the frame-shaped adhesive layer. The outer peripheral surface is exposed from the second electrode.Type: GrantFiled: December 9, 2016Date of Patent: March 17, 2020Assignee: HONDA MOTOR CO., LTD.Inventors: Masahiro Fukuta, Takahiro Tanaka, Yohei Kataoka
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Publication number: 20170170493Abstract: A method for manufacturing a resin-framed membrane electrode assembly including a stepped MEA and a resin frame member, the method includes using a first suction mechanism to hold the stepped MEA on a worktable. The stepped MBA includes a solid polymer electrolyte membrane sandwiched between a first electrode and a second electrode having an area smaller than an area of the first electrode. A second suction mechanism is used to hold a film member including the frame-shaped adhesive layer to be placed on the stepped MEA held by the first suction mechanism. The film member is peeled from the stepped MEA after the frame-shaped adhesive layer has been affixed to the stepped MEA. The resin frame member is joined to an outer peripheral surface of the solid polymer electrolyte membrane of the stepped MEA via the frame-shaped adhesive layer. The outer peripheral surface is exposed from the second electrode.Type: ApplicationFiled: December 9, 2016Publication date: June 15, 2017Applicant: HONDA MOTOR CO., LTD.Inventors: Masahiro FUKUTA, Takahiro TANAKA, Yohei KATAOKA
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Patent number: 9577276Abstract: A membrane electrode assembly includes an MEA structure unit and a resin frame member. The MEA structure unit includes a cathode, an anode, and a solid polymer electrolyte membrane interposed between the cathode and the anode. The resin frame member is formed around the MEA structure unit, and joined to the MEA structure unit. An adhesive layer is provided between an outer marginal portion of the solid polymer electrolyte membrane extending outward beyond an outer end of a second gas diffusion layer and an inner extension of the resin frame member. The adhesive layer includes an overlapped portion overlapped on an outer marginal end of the second gas diffusion layer.Type: GrantFiled: June 26, 2013Date of Patent: February 21, 2017Assignee: Honda Motor Co., Ltd.Inventors: Naoki Mitsuta, Yukihito Tanaka, Masashi Sugishita, Hiroshi Sohma, Kenichi Tanaka, Masahiro Fukuta
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Patent number: 9240609Abstract: A fuel cell is formed by stacking membrane electrode assemblies and metal separators. The metal separator is formed by adhering and joining together an anode separator and a cathode separator. In the metal separator, a step is provided on an outer circumferential end of the cathode separator, the step being spaced from an outer circumferential end of the anode separator. An adhesive layer is formed on the step between the outer circumferential end of the cathode separator and the outer circumferential end of the anode separator.Type: GrantFiled: April 4, 2012Date of Patent: January 19, 2016Assignee: Honda Motor Co., Ltd.Inventors: Masahiro Fukuta, Yasuhide Fukushima, Masami Kurimoto, Yohei Kataoka
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Publication number: 20150380746Abstract: A frame equipped membrane electrode assembly is formed by joining a membrane electrode assembly (MEA) having different sizes of components together with a resin frame member. A frame shaped adhesive sheet is provided between an inner extension of the resin frame member and an outer marginal portion of the MEA. An inner marginal portion of the adhesive sheet includes an overlapped portion, which overlaps in an electrode thickness direction with the surface of an outer marginal portion of a second gas diffusion layer.Type: ApplicationFiled: June 25, 2015Publication date: December 31, 2015Inventors: Masahiro FUKUTA, Masami KURIMOTO, Yohei KATAOKA, Yasuhide FUKUSHIMA, Junichi NAKAMURA, Takahiro TANAKA, Kohei YOSHIDA
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Patent number: 8993190Abstract: A fuel cell unit of a fuel cell contains a first membrane electrode assembly having a frame portion on an outer circumference thereof, a first separator, a second membrane electrode assembly having a frame portion on an outer circumference thereof, a second separator, and a third separator. A plurality of resin pins are formed integrally on the frame portion of the first membrane electrode assembly. The resin pins are integrally inserted into holes in the first separator, holes in the second membrane electrode assembly, holes in the second separator, and holes in the third separator.Type: GrantFiled: April 18, 2012Date of Patent: March 31, 2015Assignee: Honda Motor Co., Ltd.Inventors: Masahiro Fukuta, Yoshihiro Nakanishi, Kentaro Ishida
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Patent number: 8728683Abstract: A cell unit of a fuel cell includes a first separator, a first membrane electrode assembly, a second separator, a second membrane electrode assembly, and a third separator. Resin connecting sections are provided in the outer circumferential ends of the first separator, the second separator, and the third separator. A coupling pin is molded integrally with the resin connecting section of the first separator. A first hole and a second hole are formed on both sides of the coupling pin for selectively inserting a rebuilt pin into either of the first and second holes. A hole for inserting the coupling pin is formed at the center, and the first hole and the second hole are formed on both sides of the hole, in each of the resin connecting sections of the second and third separators.Type: GrantFiled: May 20, 2010Date of Patent: May 20, 2014Assignee: Honda Motor Co., Ltd.Inventors: Masahiro Fukuta, Kentaro Ishida, Tatsuru Shishido
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Publication number: 20140004442Abstract: A membrane electrode assembly includes an MEA structure unit and a resin frame member. The MEA structure unit includes a cathode, an anode, and a solid polymer electrolyte membrane interposed between the cathode and the anode. The resin frame member is formed around the MEA structure unit, and joined to the MEA structure unit. An adhesive layer is provided between an outer marginal portion of the solid polymer electrolyte membrane extending outward beyond an outer end of a second gas diffusion layer and an inner extension of the resin frame member. The adhesive layer includes an overlapped portion overlapped on an outer marginal end of the second gas diffusion layer.Type: ApplicationFiled: June 26, 2013Publication date: January 2, 2014Inventors: Naoki MITSUTA, Yukihito TANAKA, Masashi SUGISHITA, Hiroshi SOHMA, Kenichi TANAKA, Masahiro FUKUTA
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Publication number: 20120270131Abstract: A fuel cell unit of a fuel cell contains a first membrane electrode assembly having a frame portion on an outer circumference thereof, a first separator, a second membrane electrode assembly having a frame portion on an outer circumference thereof, a second separator, and a third separator. A plurality of resin pins are formed integrally on the frame portion of the first membrane electrode assembly. The resin pins are integrally inserted into holes in the first separator, holes in the second membrane electrode assembly, holes in the second separator, and holes in the third separator.Type: ApplicationFiled: April 18, 2012Publication date: October 25, 2012Applicant: HONDA MOTOR CO., LTD.Inventors: Masahiro FUKUTA, Yoshihiro NAKANISHI, Kentaro ISHIDA