Patents by Inventor Masahiro Kawamoto
Masahiro Kawamoto 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: 11964284Abstract: Provided is a method that enables sufficient separation of an egg shell and an egg shell membrane from each other even in a small scale, using a simpler configuration than conventional methods. The method for separating an egg shell and an egg shell membrane from each other includes a step of adding an egg shell with an egg shell membrane attached thereto to a swirling flow of an alkaline solution.Type: GrantFiled: March 10, 2020Date of Patent: April 23, 2024Assignee: BIOAPATITE, INC.Inventors: Keinosuke Kaneshima, Koichi Nakamura, Masahiro Kawamoto
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Publication number: 20240011248Abstract: A speed compensation part included in a construction machine executes a feedback control of regulating an opening degree of a second control valve to an opening degree obtained by subtracting a correction amount from a second target opening degree of the second control valve, when a combined manipulation is performed and a preset load determination condition is satisfied. The correction amount is calculated by the speed compensation part so as to be larger as a speed difference between a first target speed and a first actual speed becomes larger, the first target speed being a target speed of a first actuator and determined on the basis of a manipulation amount of a first instructive manipulation, the first actual speed being an actual speed of the first actuator.Type: ApplicationFiled: October 26, 2021Publication date: January 11, 2024Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Masahiro KAWAMOTO, Masashi KAMADA, Kazushige KOIWAI, Natsuki YUMOTO
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Publication number: 20230212835Abstract: A confluence control part of a slewing-type construction machine controls a confluence switch valve such that the confluence switch valve is switched to a suspension state when a slewing and boom raising manipulation action is performed. A pump capacity control part of the slewing-type construction machine executes a capacity control when the slewing and boom raising manipulation action is performed, the capacity control including regulating a first pump capacity and a second pump capacity respectively in such a manner that the first pump capacity increases and the second pump capacity decreases as an operating pressure difference resulting from the subtraction of a slewing operating pressure from a boom operating pressure increases, and the first pump capacity decreases and the second pump capacity increases as the operating pressure difference decreases.Type: ApplicationFiled: June 2, 2021Publication date: July 6, 2023Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventor: Masahiro KAWAMOTO
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Publication number: 20220380255Abstract: Provided is a novel cured article that enables to expand the use of debris and the like as well as the use of plant biomass. The cured article contains an inorganic material and at least one selected from lignin and cellulose.Type: ApplicationFiled: July 8, 2020Publication date: December 1, 2022Applicants: BIOAPATITE, INC., THE UNIVERSITY OF TOKYOInventors: Yuya SAKAI, Koichi NAKAMURA, Yuki SAKAI, Masahiro KAWAMOTO
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Publication number: 20220040704Abstract: Provided is a method that enables sufficient separation of an egg shell and an egg shell membrane from each other even in a small scale, using a simpler configuration than conventional methods. The method for separating an egg shell and an egg shell membrane from each other includes a step of adding an egg shell with an egg shell membrane attached thereto to a swirling flow of an alkaline solution.Type: ApplicationFiled: March 10, 2020Publication date: February 10, 2022Applicant: BIOAPATITE, INC.Inventors: Keinosuke KANESHIMA, Koichi NAKAMURA, Masahiro KAWAMOTO
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Patent number: 11149757Abstract: Provided is a hydraulic drive apparatus of a work machine capable of reducing a surge pressure. The hydraulic drive apparatus includes a control valve interposed between the hydraulic pump and a hydraulic actuator, an operation device moving the control valve in response to an actuator operation, an unload valve, an unload operation valve changing a pilot pressure of the unload valve in response to an input of an unload operation command, a target pressure calculation part, and an unload operation command part. The target pressure calculation part calculates a target pressure that increases with an increase in the holding pressure of the hydraulic actuator. The unload operation command part inputs an unload operation command to the unload operation valve to make the pump pressure of the hydraulic pump follow the target pressure.Type: GrantFiled: February 17, 2021Date of Patent: October 19, 2021Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Natsuki Yumoto, Masahiro Kawamoto
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Publication number: 20210277630Abstract: Provided is a hydraulic drive apparatus of a work machine capable of reducing a surge pressure. The hydraulic drive apparatus includes a control valve interposed between the hydraulic pump and a hydraulic actuator, an operation device moving the control valve in response to an actuator operation, an unload valve, an unload operation valve changing a pilot pressure of the unload valve in response to an input of an unload operation command, a target pressure calculation part, and an unload operation command part. The target pressure calculation part calculates a target pressure that increases with an increase in the holding pressure of the hydraulic actuator. The unload operation command part inputs an unload operation command to the unload operation valve to make the pump pressure of the hydraulic pump follow the target pressure.Type: ApplicationFiled: February 17, 2021Publication date: September 9, 2021Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Natsuki YUMOTO, Masahiro KAWAMOTO
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Patent number: 10288313Abstract: A gas supply manifold has a nozzle forming member having a plurality of gas injection nozzles, a cover member configured to be overlapped on the nozzle forming member, and a caulking-fastening portion configured to fasten the nozzle forming member and the cover member. The caulking-fastening portion is configured such that a convex portion provided for one of the nozzle forming member and the cover member penetrates a hole provided for the other member, and a tip end portion of the convex portion has an engagement portion, the engagement portion having a larger diameter or a larger width than the hole and being engaged with a peripheral edge portion of the hole. A tip end face of the convex portion has a dent portion formed by pressing the tip end face into a base portion side of the convex portion and an area around the dent portion constitutes the engagement portion. Thus, the nozzle forming member and the cover member are appropriately caulked and fastened.Type: GrantFiled: December 15, 2016Date of Patent: May 14, 2019Assignee: NORITZ CORPORATIONInventors: Naoki Se, Michihisa Nakahara, Hideyuki Fujisawa, Kenichi Sakurai, Yuta Tsuji, Keizo Kawano, Taihei Terasawa, Masahiro Kawamoto, Masaharu Imaizumi
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Publication number: 20170184324Abstract: A gas supply manifold has a nozzle forming member having a plurality of gas injection nozzles, a cover member configured to be overlapped on the nozzle forming member, and a caulking-fastening portion configured to fasten the nozzle forming member and the cover member. The caulking-fastening portion is configured such that a convex portion provided for one of the nozzle forming member and the cover member penetrates a hole provided for the other member, and a tip end portion of the convex portion has an engagement portion, the engagement portion having a larger diameter or a larger width than the hole and being engaged with a peripheral edge portion of the hole. A tip end face of the convex portion has a dent portion formed by pressing the tip end face into a base portion side of the convex portion and an area around the dent portion constitutes the engagement portion. Thus, the nozzle forming member and the cover member are appropriately caulked and fastened.Type: ApplicationFiled: December 15, 2016Publication date: June 29, 2017Applicant: NORITZ CORPORATIONInventors: Naoki SE, Michihisa NAKAHARA, Hideyuki FUJISAWA, Kenichi SAKURAI, Yuta TSUJI, Keizo KAWANO, Taihei TERASAWA, Masahiro KAWAMOTO, Masaharu IMAIZUMI
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Patent number: 8703378Abstract: A method of manufacturing toner including mixing mother toner particles containing a binder resin and a coloring agent and first particles having an average primary particle diameter of from 100 nm to 1 ?m to using a mixer including a rotary shaft member, multiple stirring members provided to the surface of the shaft member, and a casing to cover the multiple stirring members, wherein the cross section of the inner periphery of the casing relative to a direction perpendicular to the rotation axis of the shaft member is circular around the rotation axis with a substantially constant distance between the inner periphery and the rotation axis. The casing covers the multiple stirring members and a cooling jacket is provided to at least part of the outer periphery of the casing. The weight ratio of the particles to the mother toner particles is from 1.5% to 10%.Type: GrantFiled: September 16, 2011Date of Patent: April 22, 2014Assignee: Ricoh Company, Ltd.Inventors: Kohsuke Satoh, Tetsuya Tanaka, Masahiro Kawamoto, Natsuko Matsushita
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Patent number: 8580476Abstract: A toner for developing an electrostatic image is provided. The toner includes at least a binder resin; a colorant; and a particulate release agent. The particulate release agent is prepared by heating the release agent to a temperature not lower than a melting point of the release agent to melt the release agent, dissolving the melted release agent in a supercritical fluid or a sub-critical fluid, and feeding the solution into a liquid so that the solution is depressurized and the particulate release agent is formed in the liquid.Type: GrantFiled: March 14, 2011Date of Patent: November 12, 2013Assignee: Ricoh Company, Ltd.Inventors: Masahide Yamada, Chiaki Tanaka, Masahiro Kawamoto, Tatsunori Kamiyama, Satoshi Izumi
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Publication number: 20130264406Abstract: A media stirrer mill, including a dispersion container; a stirring member rotatable in the dispersion container; and a dispersion chamber formed in a gap between the stirring member and the dispersion container, including a dispersion media configured to disperse a material, wherein the dispersion container includes concavities having arc-like bottoms and convexities on its inner wall surface.Type: ApplicationFiled: April 2, 2013Publication date: October 10, 2013Applicant: RICOH COMPANY, LTD.Inventors: Hiroki Morioka, Shigeo Hatada, Masahiro Kawamoto
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Patent number: 8444073Abstract: A continuous kneading apparatus including: a stationary portion having an internal space where matter is conveyed; a rotary disc member and a screw member which are configured to convey the matter in the internal space; a drive shaft member to which the rotary disc member and the screw member are fixed; and a cooling medium passage through which a cooling medium passes, wherein the cooling medium passage is provided for the screw member which is placed upstream of the rotary disc member with respect to the conveyance direction of the matter, wherein the cooling medium passing in the cooling medium passage is lower in temperature than the matter passing in the internal space, and wherein the matter passes in the internal space while provided with shear force by rotation of the drive shaft member and thus continuously kneaded, and while cooled by the cooling medium.Type: GrantFiled: December 14, 2010Date of Patent: May 21, 2013Assignee: Ricoh Company, Ltd.Inventors: Masahiro Kawamoto, Tetsuya Tanaka, Kenta Kenjoh, Satoshi Izumi, Ippei Muneoka
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Patent number: 8216760Abstract: There is provided a method for producing resinous particles, containing: melting a mixture containing a binder resin and at least one additive having a melting point lower than T1/2 of the binder resin so as to prepare a molten material; atomizing resinous particles from the molten material in an atmosphere having a temperature higher than Tg of the binder resin and lower than 3 times of T1/2 of the binder resin; retaining the resinous particles in an atmosphere having a temperature higher than Tg of the binder resin, and lower than 1.5 times of T1/2 of the binder resin for 1 s to 15 s; and cooling and solidifying the resinous particles.Type: GrantFiled: March 7, 2011Date of Patent: July 10, 2012Assignee: Ricoh Company, Ltd.Inventors: Naotoshi Kinoshita, Tetsuya Tanaka, Masahiro Kawamoto
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Patent number: 8191808Abstract: A fluid spray nozzle for spraying fluid, satisfying a formula (r?r0)?L tan 35°, wherein r0 is a radius of a section having a minimum area of the nozzle when cut perpendicular to a spray direction of the fluid; and r is a radius of cross-sections of an upstream side and a downstream side of the spray direction from the section having a minimum area with a distance of L.Type: GrantFiled: September 25, 2009Date of Patent: June 5, 2012Assignee: Ricoh Company, Ltd.Inventors: Tetsuya Tanaka, Masahiro Kawamoto, Akio Matsui, Hiroki Morioka, Kaoru Aoki
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Publication number: 20120070774Abstract: A method of manufacturing toner including mixing mother toner particles containing a binder resin and a coloring agent and first particles having an average primary particle diameter of from 100 nm to 1 ?m to using a mixer including a rotary shaft member, multiple stirring members provided to the surface of the shaft member, and a casing to cover the multiple stirring members, wherein the cross section of the inner periphery of the casing relative to a direction perpendicular to the rotation axis of the shaft member is circular around the rotation axis with a substantially constant distance between the inner periphery and the rotation axis. The casing covers the multiple stirring members and a cooling jacket is provided to at least part of the outer periphery of the casing. The weight ratio of the particles to the mother toner particles is from 1.5% to 10%.Type: ApplicationFiled: September 16, 2011Publication date: March 22, 2012Inventors: Kohsuke SATOH, Tetsuya Tanaka, Masahiro Kawamoto, Natsuko Matsushita
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Publication number: 20110236818Abstract: A toner for developing an electrostatic image is provided. The toner includes at least a binder resin; a colorant; and a particulate release agent. The particulate release agent is prepared by heating the release agent to a temperature not lower than a melting point of the release agent to melt the release agent, dissolving the melted release agent in a supercritical fluid or a sub-critical fluid, and feeding the solution into a liquid so that the solution is depressurized and the particulate release agent is formed in the liquid.Type: ApplicationFiled: March 14, 2011Publication date: September 29, 2011Inventors: Masahide YAMADA, Chiaki TANAKA, Masahiro KAWAMOTO, Tatsunori KAMIYAMA, Satoshi IZUMI
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Publication number: 20110159423Abstract: There is provided a method for producing resinous particles, containing: melting a mixture containing a binder resin and at least one additive having a melting point lower than T1/2 of the binder resin so as to prepare a molten material; atomizing resinous particles from the molten material in an atmosphere having a temperature higher than Tg of the binder resin and lower than 3 times of T1/2 of the binder resin; retaining the resinous particles in an atmosphere having a temperature higher than Tg of the binder resin, and lower than 1.5 times of T1/2 of the binder resin for 1 s to 15 s; and cooling and solidifying the resinous particles.Type: ApplicationFiled: March 7, 2011Publication date: June 30, 2011Inventors: Naotoshi KINOSHITA, Tetsuya Tanaka, Masahiro Kawamoto
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Publication number: 20110139909Abstract: A continuous kneading apparatus including: a stationary portion having an internal space where matter is conveyed; a rotary disc member and a screw member which are configured to convey the matter in the internal space; a drive shaft member to which the rotary disc member and the screw member are fixed; and a cooling medium passage through which a cooling medium passes, wherein the cooling medium passage is provided for the screw member which is placed upstream of the rotary disc member with respect to the conveyance direction of the matter, wherein the cooling medium passing in the cooling medium passage is lower in temperature than the matter passing in the internal space, and wherein the matter passes in the internal space while provided with shear force by rotation of the drive shaft member and thus continuously kneaded, and while cooled by the cooling medium.Type: ApplicationFiled: December 14, 2010Publication date: June 16, 2011Inventors: Masahiro Kawamoto, Tetsuya Tanaka, Kenta Kenjoh, Satoshi Izumi, Ippei Muneoka
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Patent number: 7927777Abstract: There is provided a method for producing resinous particles, containing: melting a mixture containing a binder resin and at least one additive having a melting point lower than T1/2 of the binder resin so as to prepare a molten material; atomizing resinous particles from the molten material in an atmosphere having a temperature higher than Tg of the binder resin and lower than 3 times of T1/2 of the binder resin; retaining the resinous particles in an atmosphere having a temperature higher than Tg of the binder resin, and lower than 1.5 times of T1/2 of the binder resin for 1 s to 15 s; and cooling and solidifying the resinous particles.Type: GrantFiled: February 25, 2008Date of Patent: April 19, 2011Assignee: Ricoh Company, Ltd.Inventors: Naotoshi Kinoshita, Tetsuya Tanaka, Masahiro Kawamoto