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).

  • Patent number: 11964284
    Abstract: 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: Grant
    Filed: March 10, 2020
    Date of Patent: April 23, 2024
    Assignee: BIOAPATITE, INC.
    Inventors: Keinosuke Kaneshima, Koichi Nakamura, Masahiro Kawamoto
  • Publication number: 20240011248
    Abstract: 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: Application
    Filed: October 26, 2021
    Publication date: January 11, 2024
    Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Masahiro KAWAMOTO, Masashi KAMADA, Kazushige KOIWAI, Natsuki YUMOTO
  • Publication number: 20230212835
    Abstract: 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: Application
    Filed: June 2, 2021
    Publication date: July 6, 2023
    Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventor: Masahiro KAWAMOTO
  • Publication number: 20220380255
    Abstract: 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: Application
    Filed: July 8, 2020
    Publication date: December 1, 2022
    Applicants: BIOAPATITE, INC., THE UNIVERSITY OF TOKYO
    Inventors: Yuya SAKAI, Koichi NAKAMURA, Yuki SAKAI, Masahiro KAWAMOTO
  • Publication number: 20220040704
    Abstract: 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: Application
    Filed: March 10, 2020
    Publication date: February 10, 2022
    Applicant: BIOAPATITE, INC.
    Inventors: Keinosuke KANESHIMA, Koichi NAKAMURA, Masahiro KAWAMOTO
  • Patent number: 11149757
    Abstract: 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: Grant
    Filed: February 17, 2021
    Date of Patent: October 19, 2021
    Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Natsuki Yumoto, Masahiro Kawamoto
  • Publication number: 20210277630
    Abstract: 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: Application
    Filed: February 17, 2021
    Publication date: September 9, 2021
    Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Natsuki YUMOTO, Masahiro KAWAMOTO
  • Patent number: 10288313
    Abstract: 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: Grant
    Filed: December 15, 2016
    Date of Patent: May 14, 2019
    Assignee: NORITZ CORPORATION
    Inventors: Naoki Se, Michihisa Nakahara, Hideyuki Fujisawa, Kenichi Sakurai, Yuta Tsuji, Keizo Kawano, Taihei Terasawa, Masahiro Kawamoto, Masaharu Imaizumi
  • Publication number: 20170184324
    Abstract: 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: Application
    Filed: December 15, 2016
    Publication date: June 29, 2017
    Applicant: NORITZ CORPORATION
    Inventors: Naoki SE, Michihisa NAKAHARA, Hideyuki FUJISAWA, Kenichi SAKURAI, Yuta TSUJI, Keizo KAWANO, Taihei TERASAWA, Masahiro KAWAMOTO, Masaharu IMAIZUMI
  • Patent number: 8703378
    Abstract: 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: Grant
    Filed: September 16, 2011
    Date of Patent: April 22, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Kohsuke Satoh, Tetsuya Tanaka, Masahiro Kawamoto, Natsuko Matsushita
  • Patent number: 8580476
    Abstract: 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: Grant
    Filed: March 14, 2011
    Date of Patent: November 12, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Masahide Yamada, Chiaki Tanaka, Masahiro Kawamoto, Tatsunori Kamiyama, Satoshi Izumi
  • Publication number: 20130264406
    Abstract: 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: Application
    Filed: April 2, 2013
    Publication date: October 10, 2013
    Applicant: RICOH COMPANY, LTD.
    Inventors: Hiroki Morioka, Shigeo Hatada, Masahiro Kawamoto
  • Patent number: 8444073
    Abstract: 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: Grant
    Filed: December 14, 2010
    Date of Patent: May 21, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Masahiro Kawamoto, Tetsuya Tanaka, Kenta Kenjoh, Satoshi Izumi, Ippei Muneoka
  • Patent number: 8216760
    Abstract: 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: Grant
    Filed: March 7, 2011
    Date of Patent: July 10, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Naotoshi Kinoshita, Tetsuya Tanaka, Masahiro Kawamoto
  • Patent number: 8191808
    Abstract: 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: Grant
    Filed: September 25, 2009
    Date of Patent: June 5, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Tetsuya Tanaka, Masahiro Kawamoto, Akio Matsui, Hiroki Morioka, Kaoru Aoki
  • Publication number: 20120070774
    Abstract: 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: Application
    Filed: September 16, 2011
    Publication date: March 22, 2012
    Inventors: Kohsuke SATOH, Tetsuya Tanaka, Masahiro Kawamoto, Natsuko Matsushita
  • Publication number: 20110236818
    Abstract: 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: Application
    Filed: March 14, 2011
    Publication date: September 29, 2011
    Inventors: Masahide YAMADA, Chiaki TANAKA, Masahiro KAWAMOTO, Tatsunori KAMIYAMA, Satoshi IZUMI
  • Publication number: 20110159423
    Abstract: 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: Application
    Filed: March 7, 2011
    Publication date: June 30, 2011
    Inventors: Naotoshi KINOSHITA, Tetsuya Tanaka, Masahiro Kawamoto
  • Publication number: 20110139909
    Abstract: 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: Application
    Filed: December 14, 2010
    Publication date: June 16, 2011
    Inventors: Masahiro Kawamoto, Tetsuya Tanaka, Kenta Kenjoh, Satoshi Izumi, Ippei Muneoka
  • Patent number: 7927777
    Abstract: 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: Grant
    Filed: February 25, 2008
    Date of Patent: April 19, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Naotoshi Kinoshita, Tetsuya Tanaka, Masahiro Kawamoto