Patents by Inventor Kouji Kawaguchi

Kouji Kawaguchi 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: 10738181
    Abstract: The present invention provides a rubber composition which has excellent processability owing to its low rubber viscosity during kneading, despite containing a white filler, and which further has excellent fuel economy and excellent abrasion resistance. Also provided is a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition including: a rubber component, a white filler, and a compound represented by the formula (1) below, wherein X represents —CONH— or —COO—; R1 represents a C7-C23 alkyl group or a C7-C23 alkenyl group; R2 represents a C1-C3 alkylene group; and R3 and R4 each independently represent a hydrogen atom, a C1-C3 alkyl group, or a C1-C3 hydroxyalkyl group, and at least one of R3 or R4 is the hydroxyalkyl group.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: August 11, 2020
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Tatsuya Miyazaki, Naoya Hashimoto, Kouji Kawaguchi
  • Publication number: 20200207126
    Abstract: A printing unit includes a head unit; a platen unit separately combined with the head unit; a fixed blade provided to the platen unit; a movable blade, which is provided to the head unit and is relatively movable with respect to the fixed blade; a drive mechanism, which includes a drive rack coupled to the movable blade, and moves the movable blade between a standby position being separated from the fixed blade and a cutting position at which the movable blade rides on the fixed blade; an operation lever being movable between a lock position and a releasing position; and a return mechanism configured to move the movable blade from the cutting position toward the standby position side through intermediation of the drive rack in association with the operation lever.
    Type: Application
    Filed: December 11, 2019
    Publication date: July 2, 2020
    Inventors: Masashi Kitamura, Tomohiro Murata, Akio Naito, Kouji Kawaguchi
  • Patent number: 10550247
    Abstract: The present invention provides a rubber composition for tires which can improve crack resistance, ozone resistance, discoloration resistance, and tire appearance while maintaining a good balance between them, and also provides a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for tires, containing a rubber component having a combined content of polybutadiene rubber, natural rubber, and polyisoprene rubber of 80% by mass or more per 100% by mass of the rubber component, the rubber composition containing, per 100 parts by mass of the rubber component: 0.1 to 8.0 parts by mass of polyether (A) having a glycol ether content of 80% by mass or more and a HLB of 3.5 to 19.0, the polyether (A) excluding Pluronic nonionic surfactants; 2 to 70 parts by mass of carbon black; and 0.3 to 7.0 parts by mass of an antioxidant.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: February 4, 2020
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Ryuichi Tokimune, Naoya Kitamura, Kouji Kawaguchi, Naoya Hashimoto
  • Publication number: 20200024783
    Abstract: An embroidery frame includes a mounting portion to be mounted on a sewing machine and a frame portion. The frame portion has a first frame, a hinge portion, a second frame, a first clamping portion, and a second clamping portion. The first frame is connected to the mounting portion. The hinge portion is connected to one end of the first frame. The second frame is connected at one end to the hinge portion such that the second frame is able to rotate with respect to the first frame. The first clamping portion is configured to clamp the first sewing object together with the first frame while the second frame is open with respect to the first frame. The second clamping portion is configured to clamp the second sewing object together with the second frame while the second frame is open with respect to the first frame.
    Type: Application
    Filed: September 30, 2019
    Publication date: January 23, 2020
    Inventors: Daisuke UEDA, Yasuhiko KAWAGUCHI, Nobuhiko FUNATO, Midori KOMADA, Kiyomi KATO, Takahira OSAMURA, Kouji MAKIYAMA
  • Publication number: 20200017746
    Abstract: A base fluid for heat medium contains a hydrophilic ionic liquid and water. A molecular weight of the hydrophilic ionic liquid is at or below 150. The hydrophilic ionic liquid is methylammonium nitrate. Since the ionic liquid has favorable thermal stability, the thermal stability of the base fluid for heat medium can be secured. Since the molecular weight of the hydrophilic ionic liquid is at or below 150, the base fluid for heat medium has a low kinematic viscosity. Further, since the freezing point depression effect can be obtained by dissolving the ionic liquid in water, a low freezing point can be realized.
    Type: Application
    Filed: September 3, 2019
    Publication date: January 16, 2020
    Inventors: Junichi NARUSE, Touru KAWAGUCHI, Kouji INAGAKI, Takashi KANEKO
  • Publication number: 20190368093
    Abstract: A sewing machine includes a bed portion, a pillar, an arm portion, a cover, and a thread spool device. The cover is provided on the arm portion and is rotatable between a closed position and an open position. The closed position is a position in which a base surface faces an upper side of the arm portion and the base surface covers the upper side of the arm portion. The open position is a position in which the base surface is directed upward and the base surface does not cover the upper side of the arm portion. The thread spool device is provided on the base surface and including at least one thread spool pin, the thread spool device being capable of holding a thread spool on each of the at least one thread spool pin in a state in which the cover is disposed in the open position.
    Type: Application
    Filed: May 23, 2019
    Publication date: December 5, 2019
    Inventors: Kouji MAKIYAMA, Fumihiro NONOBE, Nobuhiko FUNATO, Yasuhiko KAWAGUCHI
  • Patent number: 10377178
    Abstract: The present invention aims to provide a rubber composition for tires that can improve processability, crack resistance, ozone resistance, discoloration resistance, and tire appearance while maintaining a good balance between them, and also to provide a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for tires, containing: a rubber component; an antioxidant; and polyether, the rubber component having a combined content of polybutadiene rubber, natural rubber, and polyisoprene rubber of 80% by mass or more per 100% by mass of the rubber component, the rubber composition containing the antioxidant in an amount of 0.3 to 7.0 parts by mass per 100 parts by mass of the rubber component, the polyether having an average mass content of at least two consecutive polyethylene oxide units of 85% or less of the polyethylene oxide mass content of the polyether.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: August 13, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Ryuichi Tokimune, Naoya Kitamura, Kouji Kawaguchi, Naoya Hashimoto
  • Publication number: 20190040240
    Abstract: The present invention provides a rubber composition which has excellent processability owing to its low rubber viscosity during kneading, despite containing a white filler, and which further has excellent fuel economy and excellent abrasion resistance. Also provided is a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition including: a rubber component, a white filler, and a compound represented by the formula (1) below, wherein X represents —CONH— or —COO—; R1 represents a C7-C23 alkyl group or a C7-C23 alkenyl group; R2 represents a C1-C3 alkylene group; and R3 and R4 each independently represent a hydrogen atom, a C1-C3 alkyl group, or a C1-C3 hydroxyalkyl group, and at least one of R3 or R4 is the hydroxyalkyl group.
    Type: Application
    Filed: November 30, 2016
    Publication date: February 7, 2019
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Tatsuya MIYAZAKI, Naoya HASHIMOTO, Kouji KAWAGUCHI
  • Publication number: 20180258260
    Abstract: The present invention provides a rubber composition for tires which can improve crack resistance, ozone resistance, discoloration resistance, and tire appearance while maintaining a good balance between them, and also provides a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for tires, containing a rubber component having a combined content of polybutadiene rubber, natural rubber, and polyisoprene rubber of 80% by mass or more per 100% by mass of the rubber component, the rubber composition containing, per 100 parts by mass of the rubber component: 0.1 to 8.0 parts by mass of polyether (A) having a glycol ether content of 80% by mass or more and a HLB of 3.5 to 19.0, the polyether (A) excluding Pluronic nonionic surfactants; 2 to 70 parts by mass of carbon black; and 0.3 to 7.0 parts by mass of an antioxidant.
    Type: Application
    Filed: November 27, 2015
    Publication date: September 13, 2018
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Ryuichi TOKIMUNE, Naoya KITAMURA, Kouji KAWAGUCHI, Naoya HASHIMOTO
  • Publication number: 20170320358
    Abstract: The present invention aims to provide a rubber composition for tires that can improve processability, crack resistance, ozone resistance, discoloration resistance, and tire appearance while maintaining a good balance between them, and also to provide a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for tires, containing: a rubber component; an antioxidant; and polyether, the rubber component having a combined content of polybutadiene rubber, natural rubber, and polyisoprene rubber of 80% by mass or more per 100% by mass of the rubber component, the rubber composition containing the antioxidant in an amount of 0.3 to 7.0 parts by mass per 100 parts by mass of the rubber component, the polyether having an average mass content of at least two consecutive polyethylene oxide units of 85% or less of the polyethylene oxide mass content of the polyether.
    Type: Application
    Filed: November 27, 2015
    Publication date: November 9, 2017
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Ryuichi TOKIMUNE, Naoya KITAMURA, Kouji KAWAGUCHI, Naoya HASHIMOTO
  • Patent number: 9321311
    Abstract: In a wheel support device, a through-hole is formed so as to pass through a hub spindle in its axial direction, an outer ring shaft portion passed through the through-hole is formed in the outer ring, a first connecting portion of which the inner diameter gradually increases toward an axial outer side is formed in the inner periphery of the hub spindle, which defines the through-hole, a second connecting portion that is arranged radially inward of the first connecting portion and of which the outer diameter gradually increases toward the axial outer side is formed in the outer ring shaft portion so as to correspond to the first connecting portion, and the first connecting portion and the second connection portion have spline teeth that mesh with each other.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: April 26, 2016
    Assignee: JTEKT CORPORATION
    Inventor: Kouji Kawaguchi
  • Patent number: 8882359
    Abstract: A wheel rolling bearing unit capable of preventing grease leak even if the interference of the sealing member for sealing the clearance between the inner and outer rings is made small. The wheel rolling bearing unit according to the present invention is equipped with an inner shaft; an outer ring disposed concentrically on the outer peripheral side of the inner shaft; a plurality of balls disposed between these; and a pair of cages for retaining the balls in the circumferential direction. On the inner peripheral surface of each of the pair of cages, a concave section being dented to the outside in the radial direction to hold grease is formed in the range from the axial outside end section to the inside end section.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: November 11, 2014
    Assignee: Jtekt Corporation
    Inventor: Kouji Kawaguchi
  • Publication number: 20140240437
    Abstract: An adhesive label issuing apparatus comprising: a cutter unit; an adhesive force expression unit; and a slack unit, the slack unit including: a downstream paper passing portion arranged between the cutter unit and the adhesive force expression unit along the conveyance direction so as to pass a label paper which has passed the cutter unit therethrough; and an upstream paper passing portion arranged on the upstream side of the downstream paper passing portion along the conveyance direction so as to pass the label paper therethrough, the downstream paper passing portion being arranged so as to be offset with respect to the upstream paper passing portion along a normal direction of an upstream paper passing surface in the upstream paper passing portion and so that a downstream paper passing surface in the downstream paper passing portion and the upstream paper passing surface are in parallel to each other.
    Type: Application
    Filed: February 26, 2014
    Publication date: August 28, 2014
    Applicant: Seiko Instruments Inc.
    Inventors: Kouji KAWAGUCHI, Yoshinori SATO
  • Patent number: 8697332
    Abstract: An object of the present invention is to provide a base generator which has sensitivity and is applicable to a wide range of applications, and a photosensitive resin composition which is applicable to a wide range of applications due to the structure of a polymer precursor in which reaction into a final product is promoted by a basic substance or by heating in the presence of a basic substance. The base generator generates a base by exposure to electromagnetic radiation and heating. The photosensitive resin composition comprises a polymer precursor in which reaction into a final product is promoted by the base generator and a basic substance or by heating in the presence of a basic substance.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: April 15, 2014
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Mami Katayama, Shunji Fukuda, Katsuya Sakayori, Kouji Kawaguchi
  • Patent number: 8678689
    Abstract: A printer has a main unit supporting one of a platen roller and a recording head and has a movable blade, a movable blade holder holding the movable blade, a reciprocating mechanism for reciprocating the movable blade holder to slide the movable blade, a drive gear that drives the reciprocating mechanism, a motor that rotationally drives the drive gear, and a gear train mechanism that transmits a rotational force of the drive gear to the reciprocating mechanism. A detachable unit supports the other of the platen roller and the recording head and has a fixed blade for cutting the recording sheet in association with the movable blade. The detachable unit is attachable to and detachable from the main unit and moves close to and away from the main unit along a sliding direction of the movable blade when the detachable unit is attached to and detached from the main unit.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: March 25, 2014
    Assignee: Seiko Instruments Inc.
    Inventor: Kouji Kawaguchi
  • Patent number: 8662771
    Abstract: A cutter mechanism has a main unit supporting a movable blade and a motor for driving the movable blade. A detachable unit is attachable and detachable from the main unit and supports a fixed blade for cutting a sheet while sandwiching the sheet together with the movable blade. A holder holds the fixed blade with respect to the movable blade in an inclined state so that a cutting edge of the fixed blade forms a predetermined cutting angle with respect to a cutting edge of the movable blade. A holder support member supports the fixed blade movably in a direction in which the movable blade cutting edge moves close to and away from the fixed blade cutting edge. A biasing member biases the holder in a direction so that the fixed blade cutting edge is brought into press-contact with the movable blade cutting edge.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: March 4, 2014
    Assignee: Seiko Instruments Inc.
    Inventor: Kouji Kawaguchi
  • Patent number: 8587623
    Abstract: A printer has first and second units configured for attachment/detachment relative one another and for supporting one of a recording head and a platen roller. The first unit has spaced wall portions provided with first and second recesses. The second unit has engagement pins that detachably fit into respective ones of the first recesses, a latch member that undergoes rotation about an axial line of the engagement pins and has a pair of lock pins that detachably fit into respective ones of the second recesses after the engagement pins are fitted in the first recesses, a biasing member biasing the latch member in a first direction of detachably fitting the lock pins in the second recesses, and a release member for moving the lock pins in a second direction opposite to the first direction to detach the lock pins from the second recesses.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: November 19, 2013
    Assignee: Seiko Instruments Inc.
    Inventors: Shinichi Sudo, Kouji Kawaguchi, Akio Naito
  • Publication number: 20130301970
    Abstract: A wheel rolling bearing unit capable of preventing grease leak even if the interference of the sealing member for sealing the clearance between the inner and outer rings is made small. The wheel rolling bearing unit according to the present invention is equipped with an inner shaft; an outer ring disposed concentrically on the outer peripheral side of the inner shaft; a plurality of balls disposed between these; and a pair of cages for retaining the balls in the circumferential direction. On the inner peripheral surface of each of the pair of cages, a concave section being dented to the outside in the radial direction to hold grease is formed in the range from the axial outside end section to the inside end section.
    Type: Application
    Filed: February 9, 2012
    Publication date: November 14, 2013
    Applicant: JTEKT CORPORATION
    Inventor: Kouji Kawaguchi
  • Patent number: 8485747
    Abstract: Provided is a printer capable of minimizing paper jam with a simple configuration, preventing a recording sheet from being caught around a platen roller, and quickly performing removal of the recording sheet. The printer includes: a main unit (10) including a platen roller (5); and a detachable unit (11) including a recording head (6). The main unit includes: a wall portion (130) provided on a downstream side in a feeding direction of the recording sheet with respect to the platen roller; a guide member (131) supported at an upper end of the wall portion; and a stopper portion (132) which is provided on a downstream side in a rotating direction of the platen roller with respect to the guide member, and defines, between the platen roller and the wall portion, a retention space (C) in which the recording sheet having passed through a gap between an opposed surface (131b) of the guide member and the outer peripheral surface of the platen roller is retained.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: July 16, 2013
    Assignee: Seiko Instruments Inc.
    Inventor: Kouji Kawaguchi
  • Patent number: 8480308
    Abstract: A tapered roller bearing includes an outer ring, an inner ring, a plurality of tapered rollers interposed between the outer ring and the inner ring, and a cage for the tapered rollers. Ra is smaller than Rb where Ra represents a radius of curvature of a large end face of the tapered roller and Rb represents a radius of curvature of an end face of a large rib portion of the inner ring.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: July 9, 2013
    Assignee: JTEKT Corporation
    Inventors: Naoki Masuda, Kazutoshi Toda, Hiroki Matsuyama, Kouji Kawaguchi, Hiroyuki Ohshima