Patents by Inventor Takeshi Kawachi

Takeshi Kawachi 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: 20170305228
    Abstract: A joint realizing higher rigidity without increasing the wall thickness provided with a base part 12, a pair of side parts 14, 14 extending from the two end parts of the base part 12 in the first direction D1 to the same side in the second direction D2 vertical to the first direction D1, the pair of side parts 14, 14 being formed with fastening holes 14H at the center in a third direction D3 vertical to both the first direction D1 and second direction D2, and a closed part 16 formed between the pair of side parts 14, 14 as an extended region of the base part 12 and pair of side parts 14, 14 at least at one end in the third direction D3.
    Type: Application
    Filed: October 7, 2015
    Publication date: October 26, 2017
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Takahiro AITOH, Takeshi KAWACHI
  • Publication number: 20170293366
    Abstract: A deformation mode analysis method for a member of a structure is a method of analyzing a deformation mode of each member by performing structural analysis or a structural test on a structure including a single member or a plurality of members. In this method, the deformation mode of the structure is analyzed by separating the structure into a plurality of regions and calculating deformations for every separated region.
    Type: Application
    Filed: September 17, 2015
    Publication date: October 12, 2017
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Nobutaka SHIMIZU, Takeshi KAWACHI
  • Publication number: 20170270226
    Abstract: A structure design support device includes: an evaluation point information acquisition unit which acquires evaluation point information representing a position in a first state and a position in a second state, of an evaluation point provided in a structure which is configured of a plurality of parts, and a part to which the evaluation point belongs, among the plurality of parts; and an evaluation value calculation unit which calculates an evaluation value representing the magnitude of a change between the first state and the second state, of a positional relationship between a first evaluation point belonging to a first part and a second evaluation point belonging to a second part different from the first part to which the first evaluation point belongs, by using the evaluation point information acquired in the evaluation point information acquisition unit.
    Type: Application
    Filed: August 21, 2015
    Publication date: September 21, 2017
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Yusuke TSUNEMI, Takeshi KAWACHI, Atsushi YAMAZAKI
  • Publication number: 20170233008
    Abstract: This automobile member has a closed cross section including joint portions in which edge portions of two side walls of an inner panel are joined with edge portions of two side walls of an outer panel, in which in a first region, a first region outer height ho1 and a first region inner height hi1 have a constant value and the difference between the first region outer height ho1 and the first region inner height hi1 is smaller than the difference between a second region outer height ho2 and a second region inner height hi2; in a second region, the second region outer height ho2 has a value which is larger than the second region inner height hi2 and constant, or the second region outer height ho2 has a value which is smaller than the second region inner height hi2 and constant; in a first transition region, a first transition region outer height ho1˜2 is continuously varied between the first region outer height ho1 and the second region outer height ho2, and a first transition region inner height hi1˜2 is contin
    Type: Application
    Filed: September 3, 2015
    Publication date: August 17, 2017
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Kenichiro OTSUKA, Yoshiaki NAKAZAWA, Ryuichi NISHIMURA, Yasunori SAWA, Atsushi ONO, Takeshi KAWACHI
  • Publication number: 20170106431
    Abstract: A forming die includes: a lower forming die having a bottom part and a side wall part; an upper forming die that is movable toward the bottom part of the lower forming die along an axis parallel to the side wall part of the lower forming die; and a push-in die that is movable toward the bottom part of the lower forming die along the axis between the side wall part of the lower forming die and the upper forming die.
    Type: Application
    Filed: April 20, 2015
    Publication date: April 20, 2017
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Mitsuharu YAMAGATA, Shuji YAMAMOTO, Takeshi KAWACHI
  • Patent number: 9573436
    Abstract: A torsion beam which is used in a suspension system of an automobile which is provided with a pair of arm members which extend in a front-rear direction of the automobile and are designed to be connected to a chassis of the automobile so as to be able to swing and to have wheels attached rotably to them is disclosed. The torsion beam is formed with a recess which extends in the longitudinal direction whereby that torsion beam has first and second leg parts in a plane vertical to the longitudinal direction and exhibits a substantially V-shaped or substantially U-shaped cross-sectional shape. The torsion beam is provided with connection parts which are provided at the two ends of that torsion beam and are connected to the arm members, a fixed shape part which is provided at a center part in the longitudinal direction of that torsion beam, and asymmetric shape parts which are provided between that fixed shape part and the connection parts.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: February 21, 2017
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Takeshi Kawachi, Eisaku Sakurada, Takaaki Fukushi
  • Patent number: 9421702
    Abstract: A material heating mechanism for melting the material into a molten state, an upper plate to which the upper mold is attached and a lower plate to which the lower mold is attached, at least three position sensors for detecting a distance between the upper mold and the lower mold or the upper plate and the lower plate, and at least three compression hydraulic cylinders installed to any one of the upper plate and the lower plate and individually controlled according to information of the position sensors.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: August 23, 2016
    Assignee: KABUSHIKI KAISHA MEIKI SEISAKUSHO
    Inventors: Takeshi Kawachi, Mikio Nagata
  • Patent number: 9321488
    Abstract: A front vehicle body structure for a vehicle body (1) having a vehicle interior compartment (2) and a front compartment (3) which is provided in front of the vehicle interior compartment (2). The front vehicle body structure is provided with: strut towers (16) to which the upper edges of struts for the front wheels are mounted; front pillars (20) extending, at positions at the front of the vehicle interior compartment and on both sides in the width direction, from the roof of the vehicle interior compartment toward the upper edge of the rear of the front compartment; and reinforcement members (25, 70) each having one end joined to the strut tower and the other end joined to the front pillar. Each of the reinforcement members is joined to the strut tower on both the inner side and outer side of a plane (S) with respect to the vehicle body, the plane (S) passing through the axis of the strut and extending in the front-rear direction of the vehicle body.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: April 26, 2016
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Takeshi Kawachi, Toshiyuki Niwa, Seiichi Daimaru
  • Patent number: 8979104
    Abstract: A structure (10) for a front section of a vehicle body in a vehicle body (1) comprising a front chamber (3) disposed on the forward side of a vehicle interior (2) is provided with the following: a pair of front side members (11), located within the front chamber, that extend in the longitudinal direction of the vehicle body; a pair of strut towers (16) disposed on either side in the width direction of the front chamber and within which front wheel suspensions are disposed; and reinforcement members (20) that link the top of each strut tower with the front side members that face the strut towers, and that extend between the strut towers and the front side members. This configuration allows a structure for a front section of a vehicle body to be provided that can efficiently improve the rigidity of the vehicle body of an automobile against torsion and against lateral bending, and that can efficiently reduce the weight of the vehicle body by means of thickness reduction using a high-strength steel plate.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: March 17, 2015
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Toshiyuki Niwa, Masayoshi Suehiro, Atsushi Seto, Takeshi Kawachi, Masaaki Mizumura, Seiichi Daimaru, Kaoru Kawasaki, Hatsuhiko Oikawa, Yasunobu Miyazaki, Tatsuya Sakiyama, Nobutaka Shimizu, Naoki Yoshinaga
  • Publication number: 20140054872
    Abstract: A structure (10) for a front section of a vehicle body in a vehicle body (1) comprising a front chamber (3) disposed on the forward side of a vehicle interior (2) is provided with the following: a pair of front side members (11), located within the front chamber, that extend in the longitudinal direction of the vehicle body; a pair of strut towers (16) disposed on either side in the width direction of the front chamber and within which front wheel suspensions are disposed; and reinforcement members (20) that link the top of each strut tower with the front side members that face the strut towers, and that extend between the strut towers and the front side members. This configuration allows a structure for a front section of a vehicle body to be provided that can efficiently improve the rigidity of the vehicle body of an automobile against torsion and against lateral bending, and that can efficiently reduce the weight of the vehicle body by means of thickness reduction using a high-strength steel plate.
    Type: Application
    Filed: March 8, 2012
    Publication date: February 27, 2014
    Inventors: Toshiyuki Niwa, Masayoshi Suehiro, Atsushi Seto, Takeshi Kawachi, Masaaki Mizumura, Seiichi Daimaru, Kaoru Kawasaki, Hatsuhiko Oikawa, Yasunobu Miyazaki, Tatsuya Sakiyama, Nobutaka Shimizu, Naoki Yoshinaga
  • Publication number: 20140049073
    Abstract: A front vehicle body structure for a vehicle body (1) having a vehicle interior compartment (2) and a front compartment (3) which is provided in front of the vehicle interior compartment (2). The front vehicle body structure is provided with: strut towers (16) to which the upper edges of struts for the front wheels are mounted; front pillars (20) extending, at positions at the front of the vehicle interior compartment and on both sides in the width direction, from the roof of the vehicle interior compartment toward the upper edge of the rear of the front compartment; and reinforcement members (25, 70) each having one end joined to the strut tower and the other end joined to the front pillar. Each of the reinforcement members is joined to the strut tower on both the inner side and outer side of a plane (S) with respect to the vehicle body, the plane (S) passing through the axis of the strut and extending in the front-rear direction of the vehicle body.
    Type: Application
    Filed: March 8, 2012
    Publication date: February 20, 2014
    Inventors: Takeshi Kawachi, Toshiyuki Niwa, Seiichi Daimaru
  • Publication number: 20130270730
    Abstract: A material heating mechanism for melting the material into a molten state, an upper plate to which the upper mold is attached and a lower plate to which the lower mold is attached, at least three position sensors for detecting a distance between the upper mold and the lower mold or the upper plate and the lower plate, and at least three compression hydraulic cylinders installed to any one of the upper plate and the lower plate and individually controlled according to information of the position sensors.
    Type: Application
    Filed: April 11, 2013
    Publication date: October 17, 2013
    Applicant: KABUSHIKI KAISHA MEIKI SEISAKUSHO
    Inventors: Takeshi KAWACHI, Mikio NAGATA
  • Patent number: 6794600
    Abstract: A plasma torch used for heating a molten steel has an outer cylinder is provided. The torch includes a double tube, the bottom of which is blocked annularly. The torch also includes a bottomed cylindrical anode electrode that is installed within the outer cylinder with a gap existing between the anode electrode and the inside of the double tube. The plasma torch is provided such that pure copper is not used as a material for the anode electrode, the material has a softening point exceeding 150° C., and the ratio of an electric conductivity D of the anode electrode 28 to an electric conductivity N of the outer cylinder satisfies the formula: 0.2≦D/N<1.0. The plasma torch prevents the melting loss and wear of the anode electrode caused by the splashes and the heat produced in the anode electrode, suppresses generation of a side arc, shows an extended life, and stabilizes the casting operation and improves the quality of the slab.
    Type: Grant
    Filed: August 16, 2003
    Date of Patent: September 21, 2004
    Assignee: Nippon Steel Corporation
    Inventors: Shinichi Fukunaga, Ryoji Nishihara, Kazuhisa Tanaka, Mitsuji Asano, Kazunori Yasumitsu, Yuji Hiramoto, Hiroyuki Mitake, Takeshi Kawachi
  • Publication number: 20040074880
    Abstract: A plasma torch 20a used for heating a molten steel has an outer cylinder 26 composed of a double tube 21, the bottom of which is blocked annularly, and a bottomed cylindrical anode electrode 28 that is installed within the outer cylinder 26 with a gap existing between the anode electrode 28 and the inside of the double tube 21, the plasma torch being characterized in that pure copper is not used as a material for the anode electrode 28, the material has a softening point exceeding 150° C., and the ratio of an electric conductivity D of the anode electrode 28 to an electric conductivity N of the outer cylinder 26 satisfies the formula: 0.2≦D/N<1.0. The plasma torch prevents the melting loss and wear of the anode electrode caused by the splashes and the heat produced in the anode electrode, suppresses generation of a side arc, shows an extended life, and stabilizes the casting operation and improves the quality of the slab.
    Type: Application
    Filed: August 16, 2003
    Publication date: April 22, 2004
    Inventors: Shinichi Fukunaga, Ryoji Nishihara, Kazuhisa Tanaka, Mitsuji Asano, Kazunori Yasumitsu, Yuji Hiramoto, Hiroyuki Mitake, Takeshi Kawachi
  • Patent number: 6649860
    Abstract: A transferred plasma heating anode for heating a molten metal in a container by applying Ar plasma generated by passing a direct current through the molten metal, the transferred plasma heating anode comprising; an anode, composed of a conductive metal, that has an internal cooling structure, a metal protector having an internal cooling structure that is placed outside the anode with a constant gap between the anode and the protector, and a gas supply means that supplies an Ar-containing gas to the gap, is characterized by the central portion on the external surface of the anode tip end being inwardly recessed.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: November 18, 2003
    Assignee: Nippon Steel Corporation
    Inventors: Takeshi Kawachi, Kazuto Yamamura, Hiroyuki Mitake, Junichi Kinoshita, Katsuhiro Imanaga, Masahiro Doki, Yoshiaki Kimura, Teruo Kawabata
  • Publication number: 20020134766
    Abstract: A transferred plasma heating anode for heating a molten metal in a container by applying Ar plasma generated by passing a direct current through the molten metal, the transferred plasma heating anode comprising; an anode, composed of a conductive metal, that has an internal cooling structure, a metal protector having an internal cooling structure that is placed outside the anode with a constant gap between the anode and the protector, and a gas supply means that supplies an Ar-containing gas to the gap, is characterized by the central portion on the external surface of the anode tip end being inwardly recessed.
    Type: Application
    Filed: August 10, 2001
    Publication date: September 26, 2002
    Inventors: Takeshi Kawachi, Kazuto Yamamura, Hiroyuki Mitake, Junichi Kinoshita, Katsuhiro Imanaga, Masahiro Doki, Yoshiaki Kimura, Teruo Kawabata
  • Patent number: 6139801
    Abstract: The present invention relates to a gas collecting system collecting an inspection objective gas, such as a toxic gas discharged into an ambient air, and particularly to a gas collecting system which can achieve down-sizing of the system and permit implementation of analysis of gas concentration of the inspection objective gas at high precision with simple operation.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: October 31, 2000
    Assignee: Obayashi Corporation
    Inventors: Takeshi Kawachi, Masahiro Moriya, Yasue Sato
  • Patent number: 6136608
    Abstract: The concentration of formaldehyde in air is measured by the method of the invention. More specifically, the invention relates to a method for analyzing formaldehyde in air by collecting the air and implementing an analysis of the concentration of formaldehyde at the site where such air is found.
    Type: Grant
    Filed: April 5, 1998
    Date of Patent: October 24, 2000
    Assignee: Obayashi Corporation
    Inventors: Takeshi Kawachi, Masahiro Moriya, Yasue Sato
  • Patent number: 4551256
    Abstract: A slurry excavating method for excavating the ground or drilling a hole using excavating slurry containing a powder of water absorbing resin. This method makes it easy to prevent the slurry from flowing into gaps in the ground or cracks in fractured shale layer or fissile layer while excavating the ground.
    Type: Grant
    Filed: June 2, 1982
    Date of Patent: November 5, 1985
    Assignees: Ohbayashi-Gumi, Ltd., Kuraray Co., Ltd.
    Inventors: Daizo Kita, Tsutomu Nakamura, Takeshi Kawachi