Patents by Inventor Shinya Seno
Shinya Seno 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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Patent number: 11772327Abstract: A device for fabricating a solid freeform object includes a stage that rotates, a discharging device disposed over the stage and includes a discharging head each having one or more nozzles, the discharging head for discharging a curing composition to the stage and an exposing device disposed over the stage that exposes the stage to active energy, wherein the distance between the stage and the discharging device is variable and the distance between the stage and the exposing device is variable, wherein the shorter direction of the discharging head is perpendicular to the direction from the center of rotation of the stage toward the peripheral of the stage, wherein the number of the nozzles along the shorter direction increases in the direction from the center of rotation of the stage toward the peripheral of the stage.Type: GrantFiled: January 18, 2022Date of Patent: October 3, 2023Assignee: Ricoh Company, Ltd.Inventor: Shinya Seno
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Publication number: 20220250317Abstract: A device for fabricating a solid freeform object includes a stage that rotates, a discharging device disposed over the stage and includes a discharging head each having one or more nozzles, the discharging head for discharging a curing composition to the stage and an exposing device disposed over the stage that exposes the stage to active energy, wherein the distance between the stage and the discharging device is variable and the distance between the stage and the exposing device is variable, wherein the shorter direction of the discharging head is perpendicular to the direction from the center of rotation of the stage toward the peripheral of the stage, wherein the number of the nozzles along the shorter direction increases in the direction from the center of rotation of the stage toward the peripheral of the stage.Type: ApplicationFiled: January 18, 2022Publication date: August 11, 2022Applicant: Ricoh Company, Ltd.Inventor: Shinya Seno
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Patent number: 10919294Abstract: A liquid discharging device includes a carriage carrying a head configured to discharge a liquid onto a target, the liquid including an ink, the ink consisting water, an organic solvent, a coloring material, and a plurality of polysiloxane compounds, a driving unit configured to move the carriage and the target relatively to each other, a measuring unit configured to measure the distance between the carriage and the target, an image-capturing unit configured to capture a target image, and a setting unit configured to set a liquid discharging performance of the head based on a measurement result obtained by the measuring unit and the target image obtained by the image-capturing unit.Type: GrantFiled: March 15, 2019Date of Patent: February 16, 2021Assignee: Ricoh Company, Ltd.Inventors: Takuya Fujita, Hiromi Sakaguchi, Yuta Nakamura, Naoto Shimura, Yoshiaki Masuda, Tetsuto Ueda, Yoshimi Nemoto, Kenichi Taguma, Naohiro Toda, Shinya Seno, Nobuyuki Satoh
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Publication number: 20190283406Abstract: A liquid discharging device includes a carriage carrying a head configured to discharge a liquid onto a target, the liquid comprising an ink, the ink comprising water, an organic solvent, a coloring material, and a plurality of polysiloxane compounds, a driving unit configured to move the carriage and the target relatively to each other, a measuring unit configured to measure the distance between the carriage and the target, an image-capturing unit configured to capture a target image, and a setting unit configured to set a liquid discharging performance of the head based on a measurement result obtained by the measuring unit and the target image obtained by the image-capturing unit.Type: ApplicationFiled: March 15, 2019Publication date: September 19, 2019Inventors: Takuya FUJITA, Hiromi Sakaguchi, Yuta Nakamura, Naoto Shimura, Yoshiaki Masuda, Tetsuto Ueda, Yoshimi Nemoto, Kenichi Taguma, Naohiro Toda, Shinya Seno, Nobuyuki Satoh
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Patent number: 9789720Abstract: To provide an image forming method, including applying a pre-treatment liquid on a recording medium including a substrate and a coating layer at least on one surface of the substrate, wherein the pre-treatment liquid is applied on a surface of the recording layer with the coating layer; drying the recording medium on which the pre-treatment liquid has been applied; and forming an image on the recording medium after drying by discharging a water-based ink by inkjet method, wherein the pre-treatment liquid includes a water-soluble cationic polymer, an ammonium salt of an organic acid and water, and wherein the water-based ink includes water and negatively charged colored particles including a colorant.Type: GrantFiled: July 5, 2013Date of Patent: October 17, 2017Assignee: Ricoh Company, Ltd.Inventors: Shosuke Aoai, Tsutomu Maekawa, Michihiko Namba, Shinya Seno, Hiroshi Gotou, Akihiko Gotoh
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Publication number: 20160257818Abstract: Provided is a layered product, including: a base material, and a first layer and a second layer over the base material in this order, wherein the first layer is made of a first photopolymerizable composition containing at least a polymerizable compound having a hydroxyl group, wherein the second layer is made of a second photopolymerizable composition containing at least diethylene glycol dimethacrylate, and wherein an average thickness of the first layer is equal to or greater than 35% of a total average thickness of the first layer and the second layer.Type: ApplicationFiled: August 27, 2015Publication date: September 8, 2016Inventors: Daisuke Mezaki, Takao Hiraoka, Shinya Seno
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Patent number: 9206329Abstract: A pre-treatment liquid includes a flocculant formed of a water-soluble cationic polymer obtained by copolymerizing an amine monomer and an epihalohydrin monomer; a surface conditioner; a surfactant; a water-soluble organic solvent; and water.Type: GrantFiled: November 26, 2013Date of Patent: December 8, 2015Assignee: RICOH COMPANY, LTD.Inventors: Michihiko Namba, Shohsuke Aoai, Tsutomu Maekawa, Shinya Seno
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Publication number: 20150283828Abstract: To provide an image forming method, including: a pre-treatment liquid application step for applying a pre-treatment liquid on a recording medium including a substrate and a coating layer at least on one surface of the substrate, wherein the pre-treatment liquid is applied on a surface of the recording layer with the coating layer! a drying step for drying the recording medium on which the pre-treatment liquid has been applied; and an image forming step for forming an image on the recording medium after drying by discharging a water-based ink by inkjet method, wherein the pre-treatment liquid includes a water-soluble cationic polymer, an ammonium salt of an organic acid and water, and wherein the water-based ink includes water and negatively charged colored particles including a colorant.Type: ApplicationFiled: July 5, 2013Publication date: October 8, 2015Inventors: Shosuke Aoai, Tsutomu Maekawa, Michihiko Namba, Shinya Seno, Hiroshi Gotou, Akihiko Gotoh
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Patent number: 9132593Abstract: A disclosed method for producing a hollow cell array structure includes a first step of layering a deformable material capable of being plastically deformed under a predetermined condition on a first substrate, the first substrate having plural, mutually separated depressions in a surface thereof, such that the deformable material forms mutually isolated spaces in the corresponding depressions; a second step of expanding the spaces in the plural depressions by inducing a gas pressure of the spaces while extending the deformable material on the first substrate, such that plural hollow cells are simultaneously formed in correspondence to the plural depressions in predetermined directions; and a third step of selectively solidifying portions of the plural hollow cells by selectively applying ultraviolet rays thereto.Type: GrantFiled: July 8, 2010Date of Patent: September 15, 2015Assignee: Ricoh Company, Ltd.Inventors: Toshihiro Kanematsu, Masaru Ohgaki, Shinji Aoki, Shinya Seno, Masahiro Masuzawa, Hisayoshi Ohshima, Yukie Inoue
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Patent number: 9120946Abstract: An active energy ray curing type composition contains (meth)acrylic acid ester; and polyether-modified polysiloxane, wherein (meth)acrylic acid ester comprises diethylene glycol dimethacrylate and alkoxy-modified (meth)acrylic acid ester.Type: GrantFiled: September 23, 2014Date of Patent: September 1, 2015Assignee: RICOH COMPANY, LTD.Inventors: Shinya Seno, Takao Hiraoka
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Publication number: 20150091986Abstract: An active energy ray curing type composition contains (meth)acrylic acid ester; and polyether-modified polysiloxane, wherein (meth)acrylic acid ester comprises diethylene glycol dimethacrylate and alkoxy-modified (meth)acrylic acid ester.Type: ApplicationFiled: September 23, 2014Publication date: April 2, 2015Applicant: RICOH COMPANY, LTD.Inventors: Shinya Seno, Takao Hiraoka
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Publication number: 20140253631Abstract: A pre-treatment liquid includes a flocculant formed of a water-soluble cationic polymer obtained by copolymerizing an amine monomer and an epihalohydrin monomer; a surface conditioner; a surfactant; a water-soluble organic solvent; and water.Type: ApplicationFiled: November 26, 2013Publication date: September 11, 2014Applicant: RICOH COMPANY, LTD.Inventors: Michihiko Namba, Shohsuke Aoai, Tsutomu Maekawa, Shinya Seno
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Patent number: 8815140Abstract: To provide a method of producing a film, comprising: ejecting a liquid B over a liquid surface of an active energy ray-curable liquid as a liquid A by an inkjet process, according to a predetermined periodic signal; and subsequently applying an active energy ray to the liquid A and the liquid B so as to perform curing and obtain a film which comprises a pattern according to any one of (1) to (4) below, (1) a smooth pattern having a periodic amplitude based upon a trigonometric function, (2) a pattern having a periodic depression, (3) a pattern in the form of a periodic flat surface, and (4) a pattern having a periodic semicylindrical shape.Type: GrantFiled: April 8, 2011Date of Patent: August 26, 2014Assignee: Ricoh Company, Ltd.Inventors: Tamotsu Aruga, Shinya Seno, Masayuki Koyano, Eiji Noda, Noriyasu Takeuchi, Tsutomu Maekawa, Takao Hiraoka, Tomoko Hasegawa, Okitoshi Kimura, Soh Noguchi
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Patent number: 8727522Abstract: An ultraviolet crosslinking ink including a radically polymerizable and anionically polymerizable monomer; a photoradical generator; and a photo-base generator. An inkjet recording method including ejecting an ultraviolet crosslinking ink including a radically polymerizable and anionically polymerizable monomer; a photoradical generator; a photo-base generator; and a colorant, toward a surface of a recording material to form an ink image, and irradiating the ink image with ultraviolet light using a light emitting diode.Type: GrantFiled: January 3, 2012Date of Patent: May 20, 2014Assignee: Ricoh Company, Ltd.Inventors: Tsutomu Maekawa, Okitoshi Kimura, Eiji Noda, Tamotsu Aruga, Shinya Seno, Noriyasu Takeuchi, Masayuki Koyano, Takao Hiraoka, Tomoko Hasegawa, Soh Noguchi
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Patent number: 8708475Abstract: An ultraviolet crosslinking inkjet ink including a radically polymerizable monomer including a methacrylate and no acrylate; and a photoradical generator. An ink cartridge including the ultraviolet crosslinking inkjet ink and a container containing the ultraviolet crosslinking inkjet ink therein. An image forming method including ejecting droplets of the ultraviolet crosslinking inkjet ink toward a recording material to form an image on the recording material; and irradiating the image with ultraviolet light to crosslink the image. An image forming apparatus including a recording device to eject droplets of the ultraviolet crosslinking inkjet ink toward a recording material to form an image on the recording material; and an ultraviolet irradiator to irradiate the image with ultraviolet light to crosslink the image.Type: GrantFiled: December 7, 2011Date of Patent: April 29, 2014Assignee: Ricoh Company, Ltd.Inventors: Tomoko Hasegawa, Tamotsu Aruga, Okitoshi Kimura, Eiji Noda, Shinya Seno, Noriyasu Takeuchi, Masayuki Koyano, Soh Noguchi, Takao Hiraoka, Tsutomu Maekawa
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Patent number: 8632174Abstract: A method of ink jet recording including forming an uncured first ink layer of a first ultraviolet curable ink A on a recording medium, forming an uncured second ink layer having a recording pattern inside the uncured first ink layer of the ink A by discharging a second ultraviolet curable ink B from an ink jet head, and curing the uncured first ink layer by irradiating the uncured first ink layer with ultraviolet light after forming the uncured second ink layer, wherein the ink A contains a photoradical generator and the ink B contains a photobase generator and a coloring agent.Type: GrantFiled: September 23, 2011Date of Patent: January 21, 2014Assignee: Ricoh Company, Ltd.Inventors: Soh Noguchi, Okitoshi Kimura, Tsutomu Maekawa, Takao Hiraoka, Tomoko Hasegawa, Eiji Noda, Shinya Seno, Noriyasu Takeuchi, Tamotsu Aruga, Masayuki Koyano
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Publication number: 20130065024Abstract: To provide a method of producing a film, comprising: ejecting a liquid B over a liquid surface of an active energy ray-curable liquid as a liquid A by an inkjet process, according to a predetermined periodic signal; and subsequently applying an active energy ray to the liquid A and the liquid B so as to perform curing and obtain a film which comprises a pattern according to any one of (1) to (4) below, (1) a smooth pattern having a periodic amplitude based upon a trigonometric function, (2) a pattern having a periodic depression, (3) a pattern in the form of a periodic flat surface, and (4) a pattern having a periodic semicylindrical shape.Type: ApplicationFiled: April 8, 2011Publication date: March 14, 2013Inventors: Tamotsu Aruga, Shinya Seno, Masayuki Koyano, Eiji Noda, Noriyasu Takeuchi, Tsutomu Maekawa, Takao Hiraoka, Tomoko Hasegawa, Okitoshi Kimura, Soh Noguchi
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Patent number: 8273275Abstract: A disclosed method of manufacturing an image display element structure includes a coating step of coating a substrate surface including a plurality of recessed portions arranged at predetermined intervals, with a coating material that is plastic-deformable, in such a manner as to maintain spaces in the recessed portions; and an expanding step of forming gaps in the coating material coating the substrate surface by expanding gas in the spaces, wherein the gaps correspond to the recessed portions; and a peeling step of peeling off the coating material in which the gaps have been formed, from the substrate surface.Type: GrantFiled: February 25, 2008Date of Patent: September 25, 2012Assignee: Ricoh Company, Ltd.Inventors: Hisayoshi Ohshima, Masaru Ohgaki, Toshihiro Kanematsu, Masahiro Masuzawa, Shinya Seno, Shinji Aoki
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Patent number: 8241731Abstract: A display panel includes a sheet having first and second spaced apart surfaces defining a space therebetween and a plurality of partitions extending from the first surface to the second surface and dividing the space into a plurality of cells, wherein the thickness of each partition is in a range of 0.01 to 10 ?m.Type: GrantFiled: March 6, 2008Date of Patent: August 14, 2012Assignee: Ricoh Company, Ltd.Inventors: Masaru Ohgaki, Masahiro Masuzawa, Toshihiro Kanematsu, Shinji Aoki, Shinya Seno, Hisayoshi Ohshima
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Publication number: 20120176456Abstract: An ultraviolet crosslinking ink including a radically polymerizable and anionically polymerizable monomer; a photoradical generator; and a photo-base generator. An inkjet recording method including ejecting an ultraviolet crosslinking ink including a radically polymerizable and anionically polymerizable monomer; a photoradical generator; a photo-base generator; and a colorant, toward a surface of a recording material to form an ink image, and irradiating the ink image with ultraviolet light using a light emitting diode.Type: ApplicationFiled: January 3, 2012Publication date: July 12, 2012Applicant: RICOH COMPANY, LTD.,Inventors: Tsutomu MAEKAWA, Okitoshi KIMURA, Eiji NODA, Tamotsu ARUGA, Shinya SENO, Noriyasu TAKEUCHI, Masayuki KOYANO, Takao HIRAOKA, Tomoko HASEGAWA, Soh NOGUCHI