Patents by Inventor Shuichi Kubota

Shuichi Kubota 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: 7699708
    Abstract: A shaft coupling mechanism 1 for an electric power steering apparatus includes a coupling base body 3 coupled to a rotating shaft 2; a coupling base body 5 coupled to a steering shaft 4 serving as a rotating shaft; and a pair of rotation transmitting members 6 and 7 which are disposed between the rotating shaft 2 and the steering shaft 4 by means of both coupling base bodies 3 and 5 and transmit the rotation of the rotating shaft 2 to the steering shaft 4.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: April 20, 2010
    Assignees: Oiles Corporation, JTEKT Corporation
    Inventors: Shuichi Kubota, Takashi Horiguchi, Katsunori Saito, Masao Shimura, Souichi Iwasa
  • Publication number: 20090143147
    Abstract: A shaft coupling mechanism 1 for an electric power steering apparatus includes a coupling base body 3 coupled to a rotating shaft 2; a coupling base body 5 coupled to a steering shaft 4 serving as a rotating shaft; and a pair of rotation transmitting members 6 and 7 which are disposed between the rotating shaft 2 and the steering shaft 4 by means of both coupling base bodies 3 and 5 and transmit the rotation of the rotating shaft 2 to the steering shaft 4.
    Type: Application
    Filed: May 25, 2005
    Publication date: June 4, 2009
    Applicants: OILES CORPORATION, FAVESS CO., LTD., JTEKT Corporation, TOYODA KOKI KABUSHIKI KAISHA
    Inventors: Shuichi Kubota, Takashi Horiguchi, Katsunori Saito, Masao Shimura, Souichi Iwasa
  • Publication number: 20090053550
    Abstract: Orientation degree and smoothness of a substrate surface better than those of conventional ones are provided in a textured substrate for epitaxial thin film growth. The present invention is a textured substrate for epitaxial film formation, including a crystal orientation improving layer made of a metal thin film of 1 to 5000 nm in thickness on the surface of the textured substrate for epitaxial film formation having a textured metal layer at least on one surface, wherein differences between orientation degrees (?? and ??) in the textured metal layer surface and orientation degrees (?? and ??) in the crystal orientation improving layer surface are both 0.1 to 3.0°. Further, when another metal different from the metal constituting this textured substrate crystal orientation improving layer is added equivalent to a thin film which is 30 nm or less, and subsequently is subjected to heat treatment, the smoothness of that surface can be improved.
    Type: Application
    Filed: July 18, 2008
    Publication date: February 26, 2009
    Inventors: Naoji Kashima, Shigeo Nagaya, Kunihiro Shima, Shuichi Kubota
  • Patent number: 7464741
    Abstract: A part feeding device capable of preventing the adhesive surface of a top tape from being exposed even if a pleat line is displaced and easily and collectively removing the top tape collected by winding on a reel body and a part feeding method, the device comprising a top tape transfer part (1) having raising rollers (6) raising the top tape (104) a specified amount by generally 90° with the adhesive surfaces thereof at both ends facing inside, a folding rollers (5) folding the raised top tape by falling on the unraised top tape, and a tape delivery part (18) feeding the folded top tape at a specified pitch, wherein the reel body collecting the peeled top tape can collectively push out the group of the wound top tape in the axial direction.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: December 16, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Satoshi Kawaguchi, Teruo Kawaguchi, Kiyoshi Imai, Koji Okawa, Shuichi Kubota
  • Patent number: 7413195
    Abstract: A spherical annular seal member (58) includes: a spherical annular base member (56) defined by a cylindrical inner surface (52), a partially convex spherical surface (56), and end faces (54, 55); and an outer layer (57) formed integrally with the partially convex spherical surface (53) of the spherical annular base member (56). The spherical annular base member (56) includes a reinforcing member (5) made from a compressed metal wire net (4) and a heat-resistant material filling meshes of the metal wire net (4) of the reinforcing member (5), integrated with the reinforcing member (5) in mixed form, and containing expanded graphite and an organic phosphorus compound. The outer layer (56) includes a heat-resistant material constituted by a heat-resistant sheet member (6) containing expanded graphite and an organic phosphorus compound, and a reinforcing member constituted by a metal wire net (4) integrated with the heat-resistant material in mixed formed.
    Type: Grant
    Filed: October 6, 2003
    Date of Patent: August 19, 2008
    Assignee: Oiles Corporation
    Inventors: Shuichi Kubota, Kouhei Kurose
  • Publication number: 20080128195
    Abstract: A shaft coupling mechanism 1 includes a coupling base body 3 coupled to a rotating shaft 2; a coupling base body 5 coupled to a steering shaft 4; rotation transmitting members 6 and 7 which are disposed between the rotating shaft 2 and the steering shaft 4 through the both coupling base bodies 3 and 5 and transmit the rotation of the rotating shaft 2 in an R direction to the steering shaft 4; an intermediate interposed member 8 disposed between the rotation transmitting members 6 and 7; and a coupling means 9 for coupling the rotation transmitting members 6 and 7 to each other.
    Type: Application
    Filed: December 15, 2005
    Publication date: June 5, 2008
    Applicant: OILES CORPORATION and JTEKT Corporation
    Inventors: Shuichi Kubota, Takashi Horiguchi, Katsunori Saito
  • Publication number: 20080035414
    Abstract: A shaft coupling mechanism for an electric power steering apparatus includes a coupling base body coupled to a rotating shaft; a coupling base body coupled to a steering shaft serving as a rotating shaft; and a rotation transmitting member which is disposed between the both coupling base bodies and transmits the rotation of the coupling base body in a direction about the axis, i.e., in an R direction, to the coupling base body as rotation in the R direction.
    Type: Application
    Filed: December 15, 2005
    Publication date: February 14, 2008
    Inventors: Shuichi Kubota, Takashi Horiguchi, Katsunori Saito, Toshio Iida, Yoshifumi Obata
  • Publication number: 20070257443
    Abstract: A spherical annular seal member (58) includes: a spherical annular base member (56) defined by a cylindrical inner surface (52), a partially convex spherical surface (56), and end faces (54, 55); and an outer layer (57) formed integrally with the partially convex spherical surface (53) of the spherical annular base member (56). The spherical annular base member (56) includes a reinforcing member (5) made from a compressed metal wire net (4) and a heat-resistant material filling meshes of the metal wire net (4) of the reinforcing member (5), integrated with the reinforcing member (5) in mixed form, and containing expanded graphite and an organic phosphorus compound. The outer layer (56) includes a heat-resistant material constituted by a heat-resistant sheet member (6) containing expanded graphite and an organic phosphorus compound, and a reinforcing member constituted by a metal wire net (4) integrated with the heat-resistant material in mixed formed.
    Type: Application
    Filed: July 6, 2007
    Publication date: November 8, 2007
    Applicant: OILES CORPORATION
    Inventors: Shuichi Kubota, Kouhei Kurose
  • Publication number: 20070205572
    Abstract: A rack-and-pinion type steering apparatus 1 includes a gear case 3 made of aluminum or an aluminum alloy and having a hollow portion 2; a steering shaft 6 rotatably supported by the gear case 3 through rolling bearings 4 and 5; a pinion 7 which is rotatably supported in the gear case 3 through the steering shaft 6; a rack bar 9 on which rack teeth 8 meshing with the pinion 7 are formed; and a rack guide 10 which is disposed in the hollow portion 2 inside the gear case 3 and supports the rack bar 9 slidably with respect to its moving direction A.
    Type: Application
    Filed: March 4, 2005
    Publication date: September 6, 2007
    Inventors: Shuichi Kubota, Yoshiro Kuzumi, Hidetoshi Kaida
  • Patent number: 7220056
    Abstract: A sliding bearing for a steering column includes: a cylindrical bearing body; flat surfaces formed integrally on an inner peripheral surface of the bearing body; first slits extending from one end face of the bearing body to this side of the other end face of the bearing body; second slits extending from this side of the other end face of the bearing body to the one end face of the bearing body; grooves formed in an outer peripheral surface of the bearing body; and elastic rings which are respectively fitted in the grooves in such a manner as to project from the outer peripheral surface of the bearing body and to reduce the diameter of the bearing body.
    Type: Grant
    Filed: August 22, 2003
    Date of Patent: May 22, 2007
    Assignee: Oiles Corporation
    Inventors: Shuichi Kubota, Takashi Horiguchi, Hidetoshi Kaida
  • Patent number: 7172202
    Abstract: A spherical annular seal member (1) has a seal body (4) in which a heat-resistant material (2) and a reinforcing member (3) made of a metal wire have been compressed to fill meshes of the metal wire net of the reinforcing member (3) with the heat-resistant material (2) such that the heat-resistant material (2) and the reinforcing member (3) are integrally formed in mixed form. The seal body (4) has a cylindrical inner peripheral surface (6) defining a through hole (5); an outer peripheral surface (10) constituted by a partially convex spherical surface (7); and annular end faces (8, 9) respectively provided on a large-diameter side and a small-diameter side of the partially convex spherical surface (7). In the seal body (4), the reinforcing member (3) and the heat-resistant material (2) are respectively contained at a rate of 15 to 80 wt. % and at a rate of 20 to 85 wt. %. The heat-resistant material (2) in the seal body (4) has a density of 1.20 g/cm3 to 2.00 g/cm3.
    Type: Grant
    Filed: September 18, 2002
    Date of Patent: February 6, 2007
    Assignee: Oiles Corporation
    Inventors: Shuichi Kubota, Takeshi Furukido, Yoshikazu Sakairi
  • Patent number: 7160632
    Abstract: The invention provides a material for sliding contacts that is suitable for a small-sized DC motor used in recent downsized CD players and is excellent in durability. A material for sliding contacts used in a commutator of a small-sized DC motor that consists essentially of 0.01 to 3.0% Ni by weight, 0.01 to 6.0% ZnO by weight and/or 0.01 to 3.0% MgO by weight, furthermore, in some cases, 0.01 to 5.0% Cu by weight, and the balance Ag, in which Ni metal particles, ZnO particles or MgO particles are dispersed in the matrix of Ag.
    Type: Grant
    Filed: November 17, 2004
    Date of Patent: January 9, 2007
    Assignees: Mabuchi Motor Co., Ltd., Tanaka Kikinzoku kogyo K.K.
    Inventors: Keiji Nakamura, Yasuhiro Hashimoto, Masahiro Takahashi, Shuichi Kubota, Takao Asada, Toshiya Yamamoto
  • Publication number: 20060255680
    Abstract: An object of the present invention is to provide a commutator or brush material for a small electric DC motor which enables a lengthened operating life of a spindle motor for a DVD controlled using a pulse current. A commutator material for a small electric DC motor in accordance with the present invention is characterized by being composed of 6.0 to 10.0 wt % of Cu, 1.0 to 5.0 wt % of ZnO, and a balance of Ag and in that Cu metal particles and ZnO particles are dispersed in an AgCu matrix. A brush material for a small electric DC motor in accordance with the present invention is characterized by being composed of 0.1 to 5.0 wt % of MgO and a balance of Ag and in that MgO particles are dispersed in an Ag matrix, or is characterized by being composed of 5.0 to 15.0 wt % of Ni and a balance of Pt and in that Ni is dissolved in a Pt matrix.
    Type: Application
    Filed: May 10, 2006
    Publication date: November 16, 2006
    Inventors: Keiji Nakamura, Makoto Takabatake, Masahiro Takahashi, Shuichi Kubota, Takao Asada, Toshiya Yamamoto
  • Patent number: 7063330
    Abstract: A spherical annular seal member 55 has a cylindrical inner surface 52 defining a through hole 51 in a central portion thereof, an outer surface 53 formed in the shape of a partially convex spherical surface, and an annular end face 54 on a large-diameter side of the outer surface 53. In its inner portion extending from the cylindrical inner surface 52 to the outer surface 53 formed in the shape of the partially convex spherical surface, the spherical annular seal member 55 has a reinforcing member 6 made from a compressed metal wire net 5, as well as a heat-resistant material, which contains expanded graphite, phosphorus pentoxide, and a phosphate, fills meshes of the metal wire net 5 of the reinforcing member 6, and is compressed in such a manner as to be formed integrally with the reinforcing member 6 in mixed form.
    Type: Grant
    Filed: October 8, 2003
    Date of Patent: June 20, 2006
    Assignee: Oiles Corporation
    Inventors: Shuichi Kubota, Yoshikazu Sakairi, Toshihiko Shimura, Kouhei Kurose
  • Publication number: 20060091616
    Abstract: A spherical annular seal member (58) includes: a spherical annular base member (56) defined by a cylindrical inner surface (52), a partially convex spherical surface (56), and end faces (54, 55); and an outer layer (57) formed integrally with the partially convex spherical surface (53) of the spherical annular base member (56). The spherical annular base member (56) includes a reinforcing member (5) made from a compressed metal wire net (4) and a heat-resistant material filling meshes of the metal wire net (4) of the reinforcing member (5), integrated with the reinforcing member (5) in mixed form, and containing expanded graphite and an organic phosphorus compound. The outer layer (56) includes a heat-resistant material constituted by a heat-resistant sheet member (6) containing expanded graphite and an organic phosphorus compound, and a reinforcing member constituted by a metal wire net (4) integrated with the heat-resistant material in mixed formed.
    Type: Application
    Filed: October 6, 2003
    Publication date: May 4, 2006
    Inventors: Shuichi Kubota, Kouhei Kurose
  • Publication number: 20060011644
    Abstract: A part feeding device capable of preventing the adhesive surface of a top tape from being exposed even if a pleat line is displaced and easily and collectively removing the top tape collected by winding on a reel body and a part feeding method, the device comprising a top tape transfer part (1) having raising rollers (6) raising the top tape (104) a specified amount by generally 90° with the adhesive surfaces thereof at both ends facing inside, a folding rollers (5) folding the raised top tape by falling on the unraised top tape, and a tape delivery part (18) feeding the folded top tape at a specified pitch, wherein the reel body collecting the peeled top tape can collectively push out the group of the wound top tape in the axial direction.
    Type: Application
    Filed: July 15, 2003
    Publication date: January 19, 2006
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Satoshi Kawaguchi, Teruo Kawaguchi, Kiyoshi Imai, Koji Okawa, Shuichi Kubota
  • Publication number: 20050253115
    Abstract: A method of manufacturing a heat-resistant expanded graphite sheet is characterized in that after an acid-treated graphite material obtained by treating a graphite material with a strong acid is compounded with a powder of an organic phosphorus compound and is agitated and mixed uniformly to obtain a mixture, this mixture is subjected to heating treatment for 1 to 10 seconds at temperatures of 950 to 1200° C. to produce cracked gas, that gaps between graphite layers are expanded by its gas pressure to obtain expanded graphite particles having an expansion rate of 200 to 300 times, and that these expanded graphite particles are subjected to pressure molding.
    Type: Application
    Filed: September 25, 2003
    Publication date: November 17, 2005
    Inventors: Shuichi Kubota, Kouhei Jurose
  • Publication number: 20050116576
    Abstract: The invention provides a material for sliding contacts that is suitable for a small-sized DC motor used in recent downsized CD players and is excellent in durability. A material for sliding contacts used in a commutator of a small-sized DC motor that consists essentially of 0.01 to 3.0% Ni by weight, 0.01 to 6.0% ZnO by weight and/or 0.01 to 3.0% MgO by weight, furthermore, in some cases, 0.01 to 5.0% Cu by weight, and the balance Ag, in which Ni metal particles, ZnO particles or MgO particles are dispersed in the matrix of Ag.
    Type: Application
    Filed: November 17, 2004
    Publication date: June 2, 2005
    Applicants: Mabuchi Motor Co., Ltd., Tanaka Kikinzoku Kogyo K. K.
    Inventors: Keiji Nakamura, Yasuhiro Hashimoto, Masahiro Takahashi, Shuichi Kubota, Takao Asada, Toshiya Yamamoto
  • Publication number: 20040207162
    Abstract: A spherical annular seal member (1) has a seal body (4) in which a heat-resistant material (2) and a reinforcing member (3) made of a metal wire have been compressed to fill meshes of the metal wire net of the reinforcing member (3) with the heat-resistant material (2) such that the heat-resistant material (2) and the reinforcing member (3) are integrally formed in mixed form. The seal body (4) has a cylindrical inner peripheral surface (6) defining a through hole (5); an outer peripheral surface (10) constituted by a partially convex spherical surface (7); and annular end faces (8, 9) respectively provided on a large-diameter side and a small-diameter side of the partially convex spherical surface (7). In the seal body (4), the reinforcing member (3) and the heat-resistant material (2) are respectively contained at a rate of 15 to 80 wt. % and at a rate of 20 to 85 wt. %. The heat-resistant material (2) in the seal body (4) has a density of 1.20 g/cm3 to 2.00 g/cm3.
    Type: Application
    Filed: February 25, 2004
    Publication date: October 21, 2004
    Inventors: Shuichi Kubota, Takeshi Furukido, Yoshikazu Sakairi
  • Publication number: 20040076353
    Abstract: A sliding bearing for a steering column includes: a cylindrical bearing body; flat surfaces formed integrally on an inner peripheral surface of the bearing body; first slits extending from one end face of the bearing body to this side of the other end face of the bearing body; second slits extending from this side of the other end face of the bearing body to the one end face of the bearing body; grooves formed in an outer peripheral surface of the bearing body; and elastic rings which are respectively fitted in the grooves in such a manner as to project from the outer peripheral surface of the bearing body and to reduce the diameter of the bearing body.
    Type: Application
    Filed: August 22, 2003
    Publication date: April 22, 2004
    Inventors: Shuichi Kubota, Takashi Horiguchi, Hidetoshi Kaida