Patents by Inventor Masanari Fujita
Masanari Fujita 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: 20240116618Abstract: A marine propulsion device includes a first gear, a second gear, a third gear, a circulator, a case, and an attachment body. The second gear is meshed with the first gear. The third gear is meshed with the first gear, and the third gear is coaxial with the second gear and opposed to the second gear. The circulator is between the second gear and the third gear. The case includes an internal space in which the first gear, the second gear, the third gear, and the circulator are located. The case includes an attachment hole to which the circulator is attached. The attachment body is inserted into the attachment hole so as to attach the circulator to the case.Type: ApplicationFiled: August 17, 2023Publication date: April 11, 2024Inventors: Kimitaka SARUWATARI, Akihiro NOMA, Masanari MORI, Yushi FUJITA, Hiroaki KAGEYAMA, Shinobu MUROUCHI
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Patent number: 11506994Abstract: A toner cartridge include a convex portion and a conveyance drive gear. There is a protrusion which protrudes from the center of the conveyance drive gear. Further, there is a hole at a rear side of the convex portion. The protrusion is to be inserted into the hole which is at the rear side of the convex portion.Type: GrantFiled: December 15, 2021Date of Patent: November 22, 2022Assignee: RICOH COMPANY, LTD.Inventors: Tomohiro Kubota, Naoki Nakatake, Yoshiyuki Shimizu, Shoh Tsuritani, Manabu Hamada, Masato Tsuji, Masanari Fujita
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Publication number: 20220107587Abstract: A toner cartridge include a convex portion and a conveyance drive gear. There is a protrusion which protrudes from the center of the conveyance drive gear. Further, there is a hole at a rear side of the convex portion. The protrusion is to be inserted into the hole which is at the rear side of the convex portion.Type: ApplicationFiled: December 15, 2021Publication date: April 7, 2022Applicant: Ricoh Company, Ltd.Inventors: Tomohiro KUBOTA, Naoki NAKATAKE, Yoshiyuki SHIMIZU, Shoh TSURITANI, Manabu HAMADA, Masato TSUJI, Masanari FUJITA
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Patent number: 11231663Abstract: A toner cartridge include a convex portion and a conveyance drive gear. There is a protrusion which protrudes from the center of the conveyance drive gear. Further, there is a hole at a rear side of the convex portion. The protrusion is to be inserted into the hole which is at the rear side of the convex portion.Type: GrantFiled: October 1, 2020Date of Patent: January 25, 2022Assignee: RICOH COMPANY, LTD.Inventors: Tomohiro Kubota, Naoki Nakatake, Yoshiyuki Shimizu, Shoh Tsuritani, Manabu Hamada, Masato Tsuji, Masanari Fujita
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Publication number: 20210288074Abstract: A semiconductor memory according to an embodiment includes a first conductor, a first insulator and memory pillars. The first conductor and the first insulator are alternately stacked along a first direction. The memory pillars penetrates through the stacked first conductor and first insulator. Each of the memory pillars include a semiconductor, a tunnel insulating film, a second insulator, and a block insulating film. The memory pillars include a first memory pillar. The stacked first insulator includes a first layer and a second layer that are adjacent to each other in the first direction. The first conductor between the first layer and the second layer includes a first conductive part, a second conductive part, and a first dissimilar conductive part.Type: ApplicationFiled: June 2, 2021Publication date: September 16, 2021Applicant: Toshiba Memory CorporationInventor: Masanari FUJITA
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Patent number: 11112734Abstract: A belt device includes a belt wound around a plurality of rollers, one of the plurality of rollers, and a belt contact member disposed on the one of the plurality of rollers. The belt rotates along with the plurality of rollers. The belt contact member faces an edge of the belt in an axial direction of the one of the plurality of rollers and includes a flat portion and a separation portion. The flat portion forms a plane perpendicular to the axial direction of the one of the plurality of rollers. The separation portion is disposed outboard of the flat portion in a radial direction of the one of the plurality of rollers and has a surface located farther from the edge of the belt than the flat portion in the axial direction of the one of the plurality of rollers.Type: GrantFiled: March 17, 2020Date of Patent: September 7, 2021Assignee: RICOH COMPANY, LTD.Inventors: Naohiro Kumagai, Masanari Fujita, Katsuya Kawagoe, Masaharu Furuya, Hiroki Nakamatsu, Yoshiki Hozumi
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Patent number: 11081494Abstract: A semiconductor memory according to an embodiment includes a first conductor, a first insulator and memory pillars. The first conductor and the first insulator are alternately stacked along a first direction. The memory pillars penetrates through the stacked first conductor and first insulator. Each of the memory pillars include a semiconductor, a tunnel insulating film, a second insulator, and a block insulating film. The memory pillars include a first memory pillar. The stacked first insulator includes a first layer and a second layer that are adjacent to each other in the first direction. The first conductor between the first layer and the second layer includes a first conductive part, a second conductive part, and a first dissimilar conductive part.Type: GrantFiled: January 30, 2019Date of Patent: August 3, 2021Assignee: Toshiba Memory CorporationInventor: Masanari Fujita
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Patent number: 10955771Abstract: A belt control device includes a plurality of rollers, a belt wound around the plurality of rollers and configured to rotate along with the plurality of rollers, a belt contact member that the belt contacts when the belt moves in an axial direction of the plurality of rollers, and a shaft displacement member movable in the axial direction and including an inclined face inclined with respect to a surface of the belt to control movement of the belt in the axial direction. The belt, the belt contact member, and the shaft displacement member are configured to make a frictional force between an edge of the belt and the belt contact member greater than a frictional force between the belt contact member and the shaft displacement member.Type: GrantFiled: March 12, 2020Date of Patent: March 23, 2021Assignee: RICOH COMPANY, LTD.Inventors: Naohiro Kumagai, Masanari Fujita, Katsuya Kawagoe, Masaharu Furuya, Hiroki Nakamatsu, Yoshiki Hozumi
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Publication number: 20210018862Abstract: The developer container includes a rotator that is rotated in the container body, a sequence of gears disposed outside the developer container that transmits a torque to the rotator, and a container guiding portion that fits with a main body side guiding portion and guides the developer container in a direction in which the developer container is attached to a mounting portion of an image forming device main body. A first gear included in the sequence of the gears is movable between an operating position where the first gear engages with a second gear and a retracted position where the first gear is retracted. On a surface on which the container guiding portion is disposed, a part of the container guiding portion is disposed within a projected area of the first gear being disposed at the operating position.Type: ApplicationFiled: October 1, 2020Publication date: January 21, 2021Applicant: RICOH COMPANY, LTD.Inventors: Tomohiro KUBOTA, Naoki NAKATAKE, Yoshiyuki SHIMIZU, Shoh TSURITANI, Manabu HAMADA, Masato TSUJI, Masanari FUJITA
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Patent number: 10816914Abstract: A removable device detachably attachable to a receiving structure includes a convex to be inserted into a groove of the receiving structure, a rotator to rotate around a rotational shaft, a recess at a rear side of the convex, a gear attached to the rotational shaft, and a gear cover to cover at least a part of the gear. Further, an end of the rotational shaft is inserted into the recess, part of the gear is exposed from the gear cover, and a peripheral of the end of the rotational shaft is surrounded by the gear cover.Type: GrantFiled: December 19, 2019Date of Patent: October 27, 2020Assignee: RICOH COMPANY, LTD.Inventors: Tomohiro Kubota, Naoki Nakatake, Yoshiyuki Shimizu, Shoh Tsuritani, Manabu Hamada, Masato Tsuji, Masanari Fujita
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Patent number: 10797077Abstract: According to one embodiment, it includes a stacked body including N-number of layers (N is an integer of 2 or more) stacked on a semiconductor substrate, opening portions penetrating the stacked body in a stacking direction, columnar bodies respectively disposed in the opening portions, and a slit dividing M-number of layers (M is an integer of 1 or more and (N?2) or less) of the stacked body in a horizontal direction from above, wherein the slit is formed with lateral surfaces respectively having a spatial periodicity in a horizontal plane.Type: GrantFiled: December 3, 2019Date of Patent: October 6, 2020Assignee: Toshiba Memory CorporationInventors: Genki Kawaguchi, Masanari Fujita, Hideki Inokuma, Osamu Matsuura, Takeshi Imamura, Hideo Wada, Makoto Watanabe, Hajime Kaneko, Kenichi Fujii, Takanobu Itoh
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Publication number: 20200301321Abstract: A belt control device includes a plurality of rollers, a belt wound around the plurality of rollers and configured to rotate along with the plurality of rollers, a belt contact member that the belt contacts when the belt moves in an axial direction of the plurality of rollers, and a shaft displacement member movable in the axial direction and including an inclined face inclined with respect to a surface of the belt to control movement of the belt in the axial direction. The belt, the belt contact member, and the shaft displacement member are configured to make a frictional force between an edge of the belt and the belt contact member greater than a frictional force between the belt contact member and the shaft displacement member.Type: ApplicationFiled: March 12, 2020Publication date: September 24, 2020Inventors: Naohiro KUMAGAI, Masanari FUJITA, Katsuya KAWAGOE, Masaharu FURUYA, Hiroki NAKAMATSU, Yoshiki HOZUMI
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Publication number: 20200301322Abstract: A belt device includes a belt wound around a plurality of rollers, one of the plurality of rollers, and a belt contact member disposed on the one of the plurality of rollers. The belt rotates along with the plurality of rollers. The belt contact member faces an edge of the belt in an axial direction of the one of the plurality of rollers and includes a flat portion and a separation portion. The flat portion forms a plane perpendicular to the axial direction of the one of the plurality of rollers. The separation portion is disposed outboard of the flat portion in a radial direction of the one of the plurality of rollers and has a surface located farther from the edge of the belt than the flat portion in the axial direction of the one of the plurality of rollers.Type: ApplicationFiled: March 17, 2020Publication date: September 24, 2020Inventors: Naohiro KUMAGAI, Masanari FUJITA, Katsuya KAWAGOE, Masaharu FURUYA, Hiroki NAKAMATSU, Yoshiki HOZUMI
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Publication number: 20200125005Abstract: The developer container includes a rotator that is rotated in the container body, a sequence of gears disposed outside the developer container that transmits a torque to the rotator, and a container guiding portion that fits with a main body side guiding portion and guides the developer container in a direction in which the developer container is attached to a mounting portion of an image forming device main body. A first gear included in the sequence of the gears is movable between an operating position where the first gear engages with a second gear and a retracted position where the first gear is retracted. On a surface on which the container guiding portion is disposed, a part of the container guiding portion is disposed within a projected area of the first gear being disposed at the operating position.Type: ApplicationFiled: December 19, 2019Publication date: April 23, 2020Applicant: RICOH COMPANY, LTD.Inventors: Tomohiro Kubota, Naoki Nakatake, Yoshiyuki Shimizu, Shoh Tsuritani, Manabu Hamada, Masato Tsuji, Masanari Fujita
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Publication number: 20200111809Abstract: According to one embodiment, it includes a stacked body including N-number of layers (N is an integer of 2 or more) stacked on a semiconductor substrate, opening portions penetrating the stacked body in a stacking direction, columnar bodies respectively disposed in the opening portions, and a slit dividing M-number of layers (M is an integer of 1 or more and (N-2) or less) of the stacked body in a horizontal direction from above, wherein the slit is formed with lateral surfaces respectively having a spatial periodicity in a horizontal plane.Type: ApplicationFiled: December 3, 2019Publication date: April 9, 2020Applicant: Toshiba Memory CorporationInventors: Genki KAWAGUCHI, Masanari FUJITA, Hideki INOKUMA, Osamu MATSUURA, Takeshi IMAMURA, Hideo WADA, Makoto WATANABE, Hajime KANEKO, Kenichi FUJII, Takanobu ITOH
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Patent number: 10558145Abstract: The developer container includes a rotator that is rotated in the container body, a sequence of gears disposed outside the developer container that transmits a torque to the rotator, and a container guiding portion that fits with a main body side guiding portion and guides the developer container in a direction in which the developer container is attached to a mounting portion of an image forming device main body. A first gear included in the sequence of the gears is movable between an operating position where the first gear engages with a second gear and a retracted position where the first gear is retracted. On a surface on which the container guiding portion is disposed, a part of the container guiding portion is disposed within a projected area of the first gear being disposed at the operating position.Type: GrantFiled: April 23, 2019Date of Patent: February 11, 2020Assignee: RICOH COMPANY, LTD.Inventors: Tomohiro Kubota, Naoki Nakatake, Yoshiyuki Shimizu, Shoh Tsuritani, Manabu Hamada, Masato Tsuji, Masanari Fujita
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Patent number: 10541251Abstract: According to one embodiment, it includes a stacked body including N-number of layers (N is an integer of 2 or more) stacked on a semiconductor substrate, opening portions penetrating the stacked body in a stacking direction, columnar bodies respectively disposed in the opening portions, and a slit dividing M-number of layers (M is an integer of 1 or more and (N?2) or less) of the stacked body in a horizontal direction from above, wherein the slit is formed with lateral surfaces respectively having a spatial periodicity in a horizontal plane.Type: GrantFiled: July 23, 2018Date of Patent: January 21, 2020Assignee: Toshiba Memory CorporationInventors: Genki Kawaguchi, Masanari Fujita, Hideki Inokuma, Osamu Matsuura, Takeshi Imamura, Hideo Wada, Makoto Watanabe, Hajime Kaneko, Kenichi Fujii, Takanobu Itoh
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Publication number: 20200013796Abstract: A semiconductor memory according to an embodiment includes a first conductor, a first insulator and memory pillars. The first conductor and the first insulator are alternately stacked along a first direction. The memory pillars penetrates through the stacked first conductor and first insulator. Each of the memory pillars include a semiconductor, a tunnel insulating film, a second insulator, and a block insulating film. The memory pillars include a first memory pillar. The stacked first insulator includes a first layer and a second layer that are adjacent to each other in the first direction. The first conductor between the first layer and the second layer includes a first conductive part, a second conductive part, and a first dissimilar conductive part.Type: ApplicationFiled: January 30, 2019Publication date: January 9, 2020Applicant: Toshiba Memory CorporationInventor: Masanari FUJITA
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Patent number: 10403636Abstract: A semiconductor memory device according to the embodiment includes a substrate, electrodes, at least one pillar structure, at least one charge storage film, and at least one insulating member. The electrodes are provided on the substrate, are separately stacked each other, and constitute a stacked body. The electrodes have a first width in a first direction along a surface of the substrate and include a portion extending in a second direction crossing the first direction along the surface. The pillar structure is provided in the stacked body and includes a semiconductor layer extending in a stacking direction of the stacked body. The charge storage film is provided between the semiconductor layer and the electrodes. The insulating member has a width in the first direction smaller than the first width, pierces the electrodes, and is provided to extend in the stacking direction.Type: GrantFiled: September 13, 2016Date of Patent: September 3, 2019Assignee: TOSHIBA MEMORY CORPORATIONInventors: Hideki Inokuma, Osamu Matsuura, Masanari Fujita
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Publication number: 20190250533Abstract: The developer container includes a rotator that is rotated in the container body, a sequence of gears disposed outside the developer container that transmits a torque to the rotator, and a container guiding portion that fits with a main body side guiding portion and guides the developer container in a direction in which the developer container is attached to a mounting portion of an image forming device main body. A first gear included in the sequence of the gears is movable between an operating position where the first gear engages with a second gear and a retracted position where the first gear is retracted. On a surface on which the container guiding portion is disposed, a part of the container guiding portion is disposed within a projected area of the first gear being disposed at the operating position.Type: ApplicationFiled: April 23, 2019Publication date: August 15, 2019Inventors: Tomohiro Kubota, Naoki Nakatake, Yoshiyuki Shimizu, Shoh Tsuritani, Manabu Hamada, Masato Tsuji, Masanari Fujita