Patents by Inventor Yusuke Tsumura
Yusuke Tsumura 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: 20240149540Abstract: A flat lightweight member includes fiber reinforced plastics and having excellent mechanical properties of an end portion and excellent adhesiveness between a core layer and a skin layer as well as good appearance quality and excellent producibility, the flat lightweight member includes a skin layer including a braiding material and a matrix resin, a separation layer having a bag shape and being present inside the braiding material, and a mixture of a matrix resin and a thermally expandable material, the mixture being present inside the separation layer.Type: ApplicationFiled: February 24, 2022Publication date: May 9, 2024Inventors: Shogo Matsushima, Yusuke Tsumura, Akihiko Nishizaki
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Publication number: 20230283738Abstract: A lighting device (23) irradiates a web under conveyance with light. The lighting device includes a light source (43), and an irradiation port (61) configured to open linearly in a widthwise direction of the web at an end portion facing the web. The irradiation port (61) is formed between first and second parallel portions (62b, 63b) where a first plate member (62) and a second plate member (63) parallelly face each other. The web under conveyance is irradiated with linear light. It is possible to provide a lighting device capable of irradiating only an inspection region of a sheet or a web with light.Type: ApplicationFiled: April 28, 2023Publication date: September 7, 2023Inventors: Yusuke TSUMURA, Takeshi CHIBA, Osamu YAMAMOTO
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Patent number: 11677893Abstract: A lighting device (23) irradiates a web under conveyance with light. The lighting device includes a light source (43), and an irradiation port (61) configured to open linearly in a widthwise direction of the web at an end portion facing the web. The irradiation port (61) is formed between first and second parallel portions (62b, 63b) where a first plate member (62) and a second plate member (63) parallelly face each other. The web under conveyance is irradiated with linear light. It is possible to provide a lighting device capable of irradiating only an inspection region of a sheet or a web with light.Type: GrantFiled: February 7, 2020Date of Patent: June 13, 2023Assignee: KOMORI CORPORATIONInventors: Yusuke Tsumura, Takeshi Chiba, Osamu Yamamoto
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Publication number: 20230113270Abstract: A preform is obtained by stacking two or more prepreg cut materials, each of which is obtained by cutting a sheet-like prepreg into an outline of a predetermined shape, and the sheet-like prepreg being formed of a matrix resin and reinforcing fibers aligned in one direction. This preform is characterized in that at least one prepreg cut material has first incisions that are regularly distributed throughout the whole in-plane region and a second incision that is longer than the first incision while being provided only in a predetermined specific region.Type: ApplicationFiled: December 22, 2020Publication date: April 13, 2023Inventors: Yusuke Tsumura, Yuki Mitsutsuji, Takashi Hasegawa
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Publication number: 20220038605Abstract: A lighting device (23) irradiates a web under conveyance with light. The lighting device includes a light source (43), and an irradiation port (61) configured to open linearly in a widthwise direction of the web at an end portion facing the web. The irradiation port (61) is formed between first and second parallel portions (62b, 63b) where a first plate member (62) and a second plate member (63) parallelly face each other. The web under conveyance is irradiated with linear light. It is possible to provide a lighting device capable of irradiating only an inspection region of a sheet or a web with light.Type: ApplicationFiled: February 7, 2020Publication date: February 3, 2022Inventors: Yusuke TSUMURA, Takeshi CHIBA, Osamu YAMAMOTO
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Publication number: 20210003387Abstract: To measure a thickness or a coverage of a resin present at a surface layer of a prepreg in a non-contact manner using a simple technique, a measurement method for a resin state which is a method for measuring a state of a resin present at a surface layer of a prepreg impregnated with the resin in an unidirectional reinforced fiber base material includes: irradiating the surface layer of the prepreg with light from an irradiation source; receiving reflected light from the surface layer of the prepreg by a sensor; and calculating at least one of a thickness or a coated state of the resin present at the surface layer of the prepreg from intensity of the reflected light.Type: ApplicationFiled: November 27, 2018Publication date: January 7, 2021Inventors: Naofumi Hosokawa, Masaaki Yamasaki, Yusuke Tsumura, Tsuyoshi Saotome
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Publication number: 20200398461Abstract: A method of producing a fiber-reinforced resin by press-molding a prepreg preform contains a reinforcing fiber and a thermosetting resin, the method including (a) a preform production step of producing a preform; (b) a placement and preheating step of placing the preform in a mold and preheating the preform; (c) a pressing step of changing the preform into a product shape; and (d) a curing step of curing the preform while pressurizing the preform, wherein, at start of the pressing step (c), a degree of cure ?e of the thermosetting resin in a specific part of the preform is higher than a degree of cure ?i of the thermosetting resin in a region other than the specific part of the preform.Type: ApplicationFiled: March 11, 2019Publication date: December 24, 2020Inventors: Yusuke Tsumura, Tsuyoshi Saotome, Naofumi Hosokawa
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Publication number: 20200039111Abstract: A preform element has a tucked portion in at least a portion of a prepreg composed of a reinforced fiber and a thermosetting resin. The preform element, a preform using the same, and a method of producing the same, provide for the preform element to have excellent mechanical properties or filling characteristics with respect to a cavity and is effective in avoiding problems such as fiber bridging or resin richness or warping, even when a three-dimensional form having thickness variations such as thick parts or projections is obtained through a press molding.Type: ApplicationFiled: February 7, 2018Publication date: February 6, 2020Inventors: Yusuke Tsumura, Masahiro Hashimoto
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Publication number: 20190389185Abstract: A prepreg is formed by impregnating reinforcing fibers with a heat-curable resin with a cure extent greater than or equal to 3% and less than 50%, chopped prepreg obtained by cutting the prepreg is dispersed in a flat shape, and the chopped prepreg is thermally bonded together to form a fiber reinforced resin sheet. The fiber reinforced resin sheet can be used in press forming, has excellent uniformity of basis weight as a forming material allowing dense filling into a mold, and enables obtaining a shaped product that has excellent mechanical characteristics because of increased volume content of the reinforcing fibers.Type: ApplicationFiled: February 7, 2018Publication date: December 26, 2019Inventors: Masahiro Hashimoto, Masaaki Yamasaki, Yusuke Tsumura
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Patent number: 8869696Abstract: A method for adjusting color tones of a printed matter includes: a displaying step of displaying an image of a printed matter on a display apparatus (119) by plate data used when a pattern is printed on a printing plate used in printing performed by a printing press; an adjusting step in which an operator adjusts the color tones of the printed matter while referring to the printed matter displayed on the display apparatus (119); and a reference-image displaying step of displaying a reference image of displaying an image of a printed matter obtained when a supply amount of ink used in the printing is adjusted, for reference. In the adjusting step, the operator adjusts the color tones of the printed matter based on the supply amount of the ink in the printing press while referring to the image of the printed matter displayed in the reference-image displaying step.Type: GrantFiled: May 28, 2009Date of Patent: October 28, 2014Assignee: Komori CorporationInventors: Masataka Sugiyama, Akihiro Inde, Junichi Tanaka, Yoshihiko Butsusaka, Yusuke Tsumura
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Patent number: 8132509Abstract: In a printed product color misregister amount detection method, a reference register mark including a first color area portion with a predetermined width and a blank portion in contact with the first color area portion is printed in a reference color on a printed product to be printed by a multi-color printing press. A positional shift detection register mark including a second color area portion with a width smaller than that of the first color area portion of the reference register mark is printed in a color other than the reference color to have as a target position a position where the width of the second color area portion falls within the width of the first color area portion of the reference register mark.Type: GrantFiled: April 10, 2008Date of Patent: March 13, 2012Assignee: Komori CorporationInventors: Masataka Sugiyama, Akihiro Inde, Junichi Tanaka, Yoshihiko Butsusaka, Yusuke Tsumura
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Publication number: 20110116853Abstract: Provided is a method for adjusting color tones of a printed matter. The method includes a displaying step of displaying an image of a printed matter on a display apparatus (119) by use of plate data used when a pattern is printed on a printing plate used in printing performed by a printing press, and an adjusting step in which an operator adjusts the color tones of the printed matter while referring to the printed matter displayed on the display apparatus (119). The method for adjusting color tones of a printed matter includes a reference-image displaying step of displaying a reference image of displaying an image of a printed matter obtained when a supply amount ink used in the printing is adjusted, for reference. In the adjusting step, the operator adjusts the color tones of the printed matter on the basis of the supply amount of the ink in the printing press while referring to the image of the printed matter displayed in the reference-image displaying step.Type: ApplicationFiled: May 28, 2009Publication date: May 19, 2011Applicant: KOMORI CORPORATIONInventors: Masataka Sugiyama, Akihiro Inde, Junichi Tanaka, Yoshihiko Butsusaka, Yusuke Tsumura
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Publication number: 20080250961Abstract: In a printed product color misregister amount detection method, a reference register mark including a first color area portion with a predetermined width and a blank portion in contact with the first color area portion is printed in a reference color on a printed product to be printed by a multi-color printing press. A positional shift detection register mark including a second color area portion with a width smaller than that of the first color area portion of the reference register mark is printed in a color other than the reference color to have as a target position a position where the width of the second color area portion falls within the width of the first color area portion of the reference register mark.Type: ApplicationFiled: April 10, 2008Publication date: October 16, 2008Inventors: Masataka Sugiyama, Akihiro Inde, Junichi Tanaka, Yoshihiko Butsusaka, Yusuke Tsumura