Patents by Inventor Keigo Matsumoto

Keigo Matsumoto 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).

  • Publication number: 20160356490
    Abstract: Provided is a combustion burner including: a fuel nozzle (51) that is able to blow a fuel gas obtained by mixing pulverized coal with primary air; a secondary air nozzle (52) that is able to blow secondary air from the outside of the fuel nozzle (51); a flame stabilizer (54) that is provided at a front end portion of the fuel nozzle (51) so as to be near the axis center; and a rectification member (55) that is provided between the inner wall surface of the fuel nozzle (51) and the flame stabilizer (54), wherein an appropriate flow of a fuel gas obtained by mixing solid fuel with air may be realized.
    Type: Application
    Filed: August 19, 2016
    Publication date: December 8, 2016
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Keigo Matsumoto, Kazuhiro Domoto, Naofumi Abe, Jun Kasai
  • Patent number: 9459586
    Abstract: An image forming apparatus includes an apparatus main body and a contact terminal, and a detachable unit including a holder for holding a circuit board having an electrode terminal which comes into contact with the contact terminal. A state of the detachable unit is changed to an attached state by inserting it in an insertion direction, and is changed to a detached state by withdrawing the detachable unit in a withdrawal direction. The holder includes a first positioning member for positioning a tip end of the circuit board in the insertion direction when the detachable unit holding the circuit board in the holder is slid in the insertion direction. The first positioning member includes a notch configured so that the contact terminal passes through the notch when the detachable unit not holding the circuit board in the holder in the attached state is slid in the withdrawal direction.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: October 4, 2016
    Assignee: OKI DATA CORPORATION
    Inventor: Keigo Matsumoto
  • Patent number: 9347377
    Abstract: The invention provides a gas-turbine fuel nozzle that includes a plurality of fuel supply channels to which fuel is supplied, a plurality of fuel/sweep-fluid supply channels to which fuel or a sweep fluid for sweeping the fuel is supplied, and a plurality of injection holes that are provided at downstream ends of the fuel supply channels or the fuel/sweep-fluid supply channels and that inject the fuel guided from the fuel supply channels or the fuel/sweep-fluid supply channels; a sweep-fluid supply channel that is connected to the fuel/sweep-fluid supply channels to guide the sweeping; and sweep-fluid cooling means for cooling the sweep-fluid to a temperature lower than a self-ignition temperature of the fuel.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: May 24, 2016
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Masayuki Murakami, Kazuya Higashi, Yukimasa Nakamoto, Satoko Fujii, Takeyuki Shimizu, Keigo Matsumoto
  • Patent number: 9328137
    Abstract: There is provided a hydrogel-forming material from which a hydrogel can be formed with a simpler method and under milder conditions. A hydrogel-forming material comprising a lipid peptide-type gelator that is formed of at least one selected from compound of the following formula (1): where R1 is a C9-23 aliphatic group; R2 is a hydrogen atom or a C1-4 alkyl group which optionally has a C1-2 branched chain; R3 is a —(CH2)n—X group; n is a number from 1 to 4; and X is an amino group, a guanidino group, a —CONH2 group, or a 5-membered ring group or a 6-membered ring group, or a condensed ring group that contains a 5-membered ring and a 6-membered ring, optionally containing 1 to 3 nitrogen atoms, and the similar compounds or pharmaceutically usable salts thereof; water; and an additive including either an organic acid or an organic acid salt.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: May 3, 2016
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Keigo Matsumoto, Takeaki Shoji, Tsubasa Kashino, Daiki Yamaguchi
  • Patent number: 9323195
    Abstract: A fixing device includes: a unit that includes a fixing member and a pressure member contacting the fixing member to form a nip, and heats a medium with a toner image while conveying it with it nipped in the nip, fixing the toner image; a separating member that separates the medium from the fixing member; and a holder holding the separating member. The separating member includes: a separating guide portion that is disposed downstream of the nip in a conveying direction of the medium and faces the fixing member along a width direction of the fixing member, extends along the conveying direction, and separates the medium from the fixing member; and an extending portion that extends from a downstream edge in the conveying direction of the separating guide portion, and is bent with respect to the separating guide portion to separate from the medium downstream in the conveying direction.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: April 26, 2016
    Assignee: OKI DATA CORPORATION
    Inventor: Keigo Matsumoto
  • Publication number: 20160062313
    Abstract: An image forming apparatus includes an apparatus main body and a contact terminal, and a detachable unit including a holder for holding a circuit board having an electrode terminal which comes into contact with the contact terminal. A state of the detachable unit is changed to an attached state by inserting it in an insertion direction, and is changed to a detached state by withdrawing the detachable unit in a withdrawal direction. The holder includes a first positioning member for positioning a tip end of the circuit board in the insertion direction when the detachable unit holding the circuit board in the holder is slid in the insertion direction. The first positioning member includes a notch configured so that the contact terminal passes through the notch when the detachable unit not holding the circuit board in the holder in the attached state is slid in the withdrawal direction.
    Type: Application
    Filed: July 20, 2015
    Publication date: March 3, 2016
    Applicant: OKI DATA CORPORATION
    Inventor: Keigo MATSUMOTO
  • Publication number: 20160010853
    Abstract: A combustion burner 1 includes a fuel nozzle 2 that injects fuel gas prepared by mixing solid fuel and primary air, secondary air nozzles 3, 4 that inject secondary air from the outer periphery of the fuel nozzle 2, and a flame holder 5 that is arranged in an opening of the fuel nozzle 2. In the combustion burner 1, the flame holder 5 has a splitting shape that widens in the flow direction of the fuel gas. When seen in cross section along a direction in which the flame holder 5 widens, the cross section passing through the central axis of the fuel nozzle 2, a maximum distance h from the central axis of the fuel nozzle 2 to the widened end of the flame holder 5 and an inside diameter r of the opening 21 of the fuel nozzle 2 satisfy h/(r/2)<0.6.
    Type: Application
    Filed: July 28, 2015
    Publication date: January 14, 2016
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Keigo Matsumoto, Koutaro Fujimura, Kazuhiro Domoto, Toshimitsu Ichinose, Naofumi Abe, Jun Kasai
  • Patent number: 9180201
    Abstract: There is provided a practical method for preparing lipopeptide compounds, which method is capable of inexpensive mass production without requiring complicated operations. The lipopeptide compound of formula (3): is produced by reacting an ester compound of formula (1): with an ?-amino acid compound of formula (2): in the presence of a base and within a solvent containing a nonpolar organic solvent.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: November 10, 2015
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Nobuyuki Kakiuchi, Takeaki Shoji, Kazuki Hirasada, Keigo Matsumoto, Hiroki Yamaguchi
  • Publication number: 20150309455
    Abstract: A fixing device includes: a unit that includes a fixing member and a pressure member contacting the fixing member to form a nip, and heats a medium with a toner image while conveying it with it nipped in the nip, fixing the toner image; a separating member that separates the medium from the fixing member; and a holder holding the separating member. The separating member includes: a separating guide portion that is disposed downstream of the nip in a conveying direction of the medium and faces the fixing member along a width direction of the fixing member, extends along the conveying direction, and separates the medium from the fixing member; and an extending portion that extends from a downstream edge in the conveying direction of the separating guide portion, and is bent with respect to the separating guide portion to separate from the medium downstream in the conveying direction.
    Type: Application
    Filed: April 9, 2015
    Publication date: October 29, 2015
    Applicant: Oki Data Corporation
    Inventor: Keigo MATSUMOTO
  • Patent number: 9150372
    Abstract: An image forming apparatus includes a device main body, a detachable unit that is detachable and attachable to the device main body, a sheet guide that guides a pathway of sheet, and a guide position part that regulates a position of the sheet guide. The guide position part is disposed in the device main body, the sheet guide is disposed movably with respect to the detachable unit, and when the detachable unit is mounted on the device main body, a position of the sheet guide is regulated by abutting the guide position part.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: October 6, 2015
    Assignee: Oki Data Corporation
    Inventor: Keigo Matsumoto
  • Publication number: 20150250692
    Abstract: A hydrogel-forming material for preparing hydrogel even after a process of stirring gelator in medium heat to dissolve and disperse the gelator, and cooling the mixture to room temperature with stirring, a hydrogel material wherein a gel can reform by standing at room temperature even after a hydrogel obtained using the material is converted into sol by shaking The hydrogel-forming material with lipid peptide gelator includes Formula (1) or a pharmaceutically usable salt thereof: R1 is a C9-23 aliphatic group, R2 is a hydrogen atom or C1-4 alkyl group optionally having a C1-2 branched chain, R3 is a —(CH2)n-X group, n is 1-4, and X is an amino-group, guanidino group, —CONH2 group, 5-membered ring optionally having 1-3 nitrogen atom(s), 6-membered ring optionally having 1-3 nitrogen atom(s), or fused heterocycle composed of 5-memberd and 6-membered rings optionally having 1-3 nitrogen atom(s), water, and fatty acid salt as additive.
    Type: Application
    Filed: October 2, 2013
    Publication date: September 10, 2015
    Inventor: Keigo Matsumoto
  • Publication number: 20150250880
    Abstract: A hydrogel-forming material, a premix, and a method for forming a hydrogel through a simple process at room temperature. The material including: a disperse phase (A) including a lipid peptide-based gelator including at least one of a compound of Formula (1) or pharmaceutically usable salt thereof, water, and a fatty acid salt; and a phase (B) that includes a water-soluble acidic polymer: (where R1 is a C9-23 aliphatic group, R2 is a hydrogen atom or a C1-4 alkyl group that optionally has a C1-2 branched chain, R3 is a —(CH2)n—X group, n is a number of 1 to 4, X is an amino group, a guanidino group, a —CONH2 group, a 5-membered ring optionally containing 1 to 3 nitrogen atom(s), a 6-membered ring optionally containing 1 to 3 nitrogen atom(s), or a condensed heterocycle that contains a 5-membered ring and a 6-membered ring optionally containing 1 to 3 nitrogen atom(s)).
    Type: Application
    Filed: October 2, 2013
    Publication date: September 10, 2015
    Inventors: Keigo Matsumoto, Tsubasa Kashino
  • Patent number: 9127836
    Abstract: A combustion burner 1 includes a fuel nozzle 2 that injects fuel gas prepared by mixing solid fuel and primary air, secondary air nozzles 3, 4 that inject secondary air from the outer periphery of the fuel nozzle 2, and a flame holder 5 that is arranged in an opening of the fuel nozzle 2. In the combustion burner 1, the flame holder 5 has a splitting shape that widens in the flow direction of the fuel gas. When seen in cross section along a direction in which the flame holder 5 widens, the cross section passing through the central axis of the fuel nozzle 2, a maximum distance h from the central axis of the fuel nozzle 2 to the widened end of the flame holder 5 and an inside diameter r of the opening 21 of the fuel nozzle 2 satisfy h/(r/2)<0.6.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: September 8, 2015
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Keigo Matsumoto, Koutaro Fujimura, Kazuhiro Domoto, Toshimitsu Ichinose, Naofumi Abe, Jun Kasai
  • Patent number: 9037072
    Abstract: A medium loader device includes a first medium loader member configured to load a medium, a second medium loader member usable as an extension of the first medium loader member, and a support member configured to support the first medium loader member and the second medium loader member and to form a storage area capable of storing the second medium loader member between the support member and the first medium loader member. The support member includes a holder configured to hold the first medium loader member such that the first medium loader member moves relative to the support member when the second medium loader member is moved from a usage position where the second medium loader member is used as the extension of the first medium loader member to a storage position where the second medium loader member is stored in the storage area.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: May 19, 2015
    Assignee: Oki Data Corporation
    Inventor: Keigo Matsumoto
  • Patent number: 8999300
    Abstract: It is an object of the present invention to provide a cosmetic or external skin preparation that has an improved feel in use, e.g., excellent stretching on the skin surface, excellent permeation into the skin, and no stickiness, or crinkles. A cosmetic or an external skin preparation, and a medical instrument, comprising at least one lipid peptide-based gelator that contains a low-molecular lipid peptide of Formula (1): (where R1 to R3 are independently an organic group) or a pharmaceutically usable salt thereof.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: April 7, 2015
    Assignee: Nissan Chemical Industries Ltd.
    Inventors: Takehisa Iwama, Keigo Matsumoto, Takayuki Imoto, Nobuhide Miyachi, Masahiro Goto
  • Publication number: 20140356795
    Abstract: An oil-fired burner (30A) for warming, disposed adjacent to the outer periphery of a pulverized coal burner which inputs pulverized coal and air into a furnace, includes: an oil gun (32) for inputting an oil fuel disposed at the center of an outlet opening of a nozzle main body (31) substantially rectangular in cross-section; and a secondary air input port (40) disposed so as to surround the outer periphery of the oil gun (32), wherein the secondary air input port (40) is constituted of: a central arc section (41) substantially similar in shape to a circular diffuser (34) mounted on the leading end side of the oil gun (32); and rectangular sections (42L, 42R) provided continuously from both sides of the central arc section (41) and narrowed in face-to-face dimension in the direction of the adjacent pulverized coal burners so as to increase the distance from them.
    Type: Application
    Filed: October 31, 2012
    Publication date: December 4, 2014
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Keigo Matsumoto, Kazuhiro Domoto, Naofumi Abe, Jun Kasai
  • Patent number: 8857808
    Abstract: A medium conveyance apparatus used in an image forming apparatus, includes a medium mounting unit held at a body or apparatus frame for mounting a medium, a conveying member supported rotationally around an axis to the body for conveying the medium, and a separating member being held at the body and contacting with the conveying member. The medium mounting unit includes an engaging portion for engaging the body, whereas the body or apparatus frame includes an engaged portion to be engaged with the engaging portion, and the engaging portion includes a contacting portion for regulating the body or apparatus frame in a conveyance direction of the medium. This medium conveyance apparatus maintains improved medium conveyance capability for a long period.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: October 14, 2014
    Assignee: Oki Data Corporation
    Inventor: Keigo Matsumoto
  • Publication number: 20140138905
    Abstract: A medium stacking device includes a medium stacking part stacking a medium, and a first movement part movably provided with respect to the medium stacking part. The first movement part has a first medium restriction part restricting a position of the medium, and a first movement restriction parts including a plurality of restriction members, each of which engaging with the medium stacking part and restricting a direction of the movement of the first movement part.
    Type: Application
    Filed: January 23, 2014
    Publication date: May 22, 2014
    Applicant: OKI DATA CORPORATION
    Inventor: Keigo MATSUMOTO
  • Publication number: 20140113976
    Abstract: A production method of a cosmetic that includes blending at least one lipid peptide-type gelator that contains a low-molecular lipid peptide or a pharmaceutically usable salt thereof at a ratio of 0.1% by weight to 0.5% by weight based on a mass of the polymer thickener to form a thickening gel; a preparation method of a gel for cosmetics that includes blending, into an aqueous medium for cosmetics, a polymer thickener and at least one lipid peptide-type gelator that contains a low-molecular lipid peptide or a pharmaceutically usable salt thereof at the above-mentioned ratio to form a gel; and a method of reducing the use amount of a polymer thickener in production of a cosmetic that includes blending at least one lipid peptide-type gelator that contains a low-molecular lipid peptide or a pharmaceutically usable salt thereof at the above-mentioned ratio.
    Type: Application
    Filed: March 30, 2012
    Publication date: April 24, 2014
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Keigo Matsumoto, Takayuki Imoto, Takehisa Iwama
  • Patent number: 8706014
    Abstract: An image forming apparatus includes an image forming unit that forms a developer image on a recording medium using a developer, and a fixing unit that fixes the developer image to the recording medium. The fixing unit includes a heating member that heats the recording medium on which the developer image is formed, a plurality of pressure members that press the recording medium against the heating member, and a fixing belt stretched around the plurality of pressure members and nipped between the heating member and the plurality of pressure members so as to form a plurality of nip portions. Each of the plurality of pressure members has a shape in which a center portion protrudes more outward than both end portions.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: April 22, 2014
    Assignee: Oki Data Corporation
    Inventor: Keigo Matsumoto