Patents by Inventor Toshiyuki Niwa

Toshiyuki Niwa 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: 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: 20150066441
    Abstract: An analyzing apparatus generates first displacement distribution data indicating a displacement distribution of a member caused by springback based on finite element model data, material physical property data, and stress distribution data; generates second displacement distribution data indicating an amount of displacement of the member in each of a plurality of, for example, all, natural vibration deformation modes based on the finite element model data and the material physical property data; obtains a degree of coincidence between the first displacement distribution data and each of the second displacement distribution data, and selects one or more natural vibration deformation modes based on the degree of coincidence, to determine a modified shape in which natural vibrations are increased, thereby bringing the member closer to a target shape.
    Type: Application
    Filed: March 13, 2013
    Publication date: March 5, 2015
    Inventors: Toshiyuki Niwa, Noriyuki Suzuki, Shunji Hiwatashi, Shin Toyokawa
  • Patent number: 8965554
    Abstract: Exemplary embodiments of a press-forming device, press-forming method, computer program/software arrangement and storage medium can be provided. The exemplary press-forming device can include a material characteristic input configured to input material characteristics. A state variable detector can be configured to measure a state variable comprising a metal mold distortion amount. A processing condition computer arrangement can be configured to determine from a first moment to a second moment at least one particular processing condition. Further, a processing condition controller can be configured to control the at least one processing condition from processing conditions.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: February 24, 2015
    Assignees: Nippon Steel & Sumitomo Metal Coporation, Arcelormittal France
    Inventors: Noriyuki Suzuki, Akihiro Uenishi, Yukihisa Kuriyama, Toshiyuki Niwa, Takuya Kuwayama, Mitsuharu Yamagata
  • 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
  • Patent number: 8543666
    Abstract: Exemplary embodiments of the present invention relate to a numerical analysis data providing system. The system can include a server side computer which may provide numerical analysis data to a user side computer connected to a network. The server side computer can record a material name and a property item with corresponding to any one or more types of property values from a mechanical property value, a thermal physical property value, and an electromagnetic property value as for plural materials. Such server side computer can extract one or more types of material property data from the mechanical property value, the thermal physical property value, and the electromagnetic property value corresponding to the material name and the property item recorded by a material property data storage arrangement based on the material name and the property item transmitted from the user side computer. In addition, the server side computer can transmit the extracted data to the user side computer.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: September 24, 2013
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Noriyuki Suzuki, Akihiro Uenishi, Yukihisa Kuriyama, Toshiyuki Niwa
  • Patent number: 8439429
    Abstract: Provided is a coupling structure between a front pillar and a side sill of an automobile, which improves the steering stability of the automobile and realizes a high productivity. A reinforcing member 8 is provided inside a front pillar 1 having a closed cross-section so as to extend in the front-rear direction of the automobile. The reinforcing member 8 is coupled to a front pillar outer 2. An end portion of the reinforcing member 8 at the rear side of the automobile is extended toward a side sill 4 to form a reinforcing member extension 8a. The reinforcing member extension 8a is coupled to a side sill outer 5.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: May 14, 2013
    Assignees: Unipres Corporation, Nippon Steel & Sumitomo Metal Corporation
    Inventors: Masato Shida, Isao Satsukawa, Kouji Chiba, Syu Hashimoto, Takeo Kusunoki, Kenta Konishi, Masaki Itoga, Takashi Ariga, Noriyuki Suzuki, Toshiyuki Niwa
  • Patent number: 8419090
    Abstract: A vehicular metal absorber for efficiently absorbing by a short stroke the impact energy received from legs of a pedestrian at the time of a collision between a pedestrian and an automobile, reducing the residual crush, and protecting the legs of the pedestrian, that is, a long vehicular metal absorber comprising a center flange, a top web and bottom web connected to the two sides of the center flange, a top flange connected to the top web, and a bottom flange connected to the bottom web and formed overall into a hat shaped cross-section, wherein an internal angle ?1 formed by the top web with a flange plane including the top flange and bottom flange and an internal angle ?2 formed by the bottom web with the flange plane are respectively over 0 degree to less than 90 degrees, and in that one or both of the top web and bottom web are provided with a recessed or projecting bead substantially parallel to a front-back direction of a vehicle.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: April 16, 2013
    Assignees: Unipres Corporation, Nippon Steel & Sumitomo Metal Corporation
    Inventors: Koji Nojima, Isao Satsukawa, Takashi Ariga, Akihiro Uenishi, Toshiyuki Niwa
  • Publication number: 20120289559
    Abstract: Disclosed is a manufacturing method for a fine powder exhibiting improved solubility, little impurity contamination, and a high recovery rate. Material to be ground and a grinding medium are suspended and stirred in a liquefied inert gas dispersion medium such as dried ice, and the material to be ground is made into a sub-micron or nano-sized fine powder. A uniform fine powder can be obtained when the material to be ground is a mixture having two or more components. Impurity contamination can be reduced by using granular dry ice as the grinding medium.
    Type: Application
    Filed: November 12, 2010
    Publication date: November 15, 2012
    Inventors: Toshiyuki Niwa, Shohei Sugimoto, Kazumi Danjo, Masaaki Nishio, Yasuo Nakanishi, Sakiko Kawamura
  • Patent number: 8091395
    Abstract: A system, method and software arrangement are provided for generating press-formed parts having a more consistent quality based on improved determination of processing conditions. For example, an apparatus can be configured to compare actual performance values of material properties provided by a material property database with standard values, and to adjust forming conditions such as a forming speed and a blank-holder pressure in accordance with the compared result. A control arrangement can be provided to control a press-forming device using the adjusted forming conditions. Accordingly, it may be possible to reduce occurrences of defects such as cracks and wrinkles when press-forming materials, and to obtain products having consistent quality and substantially identical shapes.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: January 10, 2012
    Assignees: Nippon Steel Corporation, Arcelor France
    Inventors: Noriyuki Suzuki, Akihiro Uenishi, Yukihisa Kuriyama, Toshiyuki Niwa, Takuya Kuwayama
  • Patent number: 8020418
    Abstract: Exemplary embodiments of a press-forming device, press-forming method, computer program/software arrangement and storage medium can be provided. The exemplary press-forming device can include a material characteristic input configured to input material characteristics. A state variable detector can be configured to measure a state variable comprising a metal mold distortion amount. A processing condition computer arrangement can be configured to determine from a first moment to a second moment at least one particular processing condition. Further, a processing condition controller can be configured to control the at least one processing condition from processing conditions.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: September 20, 2011
    Assignees: Nippon Steel Corporation, Arcelor France
    Inventors: Noriyuki Suzuki, Akihiro Uenishi, Yukihisa Kuriyama, Toshiyuki Niwa, Takuya Kuwayama, Mitsuharu Yamagata
  • Publication number: 20110166685
    Abstract: Exemplary embodiments of a press-forming device, press-forming method, computer program/software arrangement and storage medium can be provided. The exemplary press-forming device can include a material characteristic input configured to input material characteristics. A state variable detector can be configured to measure a state variable comprising a metal mold distortion amount. A processing condition computer arrangement can be configured to determine from a first moment to a second moment at least one particular processing condition. Further, a processing condition controller can be configured to control the at least one processing condition from processing conditions.
    Type: Application
    Filed: March 17, 2011
    Publication date: July 7, 2011
    Applicants: Nippon Steel Corporation, ARCELOR, FRANCE
    Inventors: Noriyuki Suzuki, Akihiro Uenishi, Yukihisa Kuriyama, Toshiyuki Niwa, Takuya Kuwayama, Mitsuharu Yamagata
  • Patent number: 7957918
    Abstract: A computer performs press forming analysis based on a shape of a formed product or of a member, a blank holder force, a friction coefficient, a tensile strength of a material, a yield strength, a stress-strain relation, and a sheet thickness, as press forming conditions, to calculate sheet thickness distribution and post-formation strain distribution of the formed product. The computer also performs performance analysis based on the sheet thickness distribution, the post-formation strain distribution, and the shape of the formed product or of the member, as state amounts of the formed product. This calculate performance of the member.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: June 7, 2011
    Assignees: Nippon Steel Corporation, Arcelor France
    Inventors: Toshiyuki Niwa, Hiroshi Yoshida, Eiji Isogai, Yuichi Yoshida
  • Publication number: 20110094279
    Abstract: A system, method and software arrangement are provided for generating press-formed parts having a more consistent quality based on improved determination of processing conditions. For example, an apparatus can be configured to compare actual performance values of material properties provided by a material property database with standard values, and to adjust forming conditions such as a forming speed and a blank-holder pressure in accordance with the compared result. A control arrangement can be provided to control a press-forming device using the adjusted forming conditions. Accordingly, it may be possible to reduce occurrences of defects such as cracks and wrinkles when press-forming materials, and to obtain products having consistent quality and substantially identical shapes.
    Type: Application
    Filed: December 27, 2010
    Publication date: April 28, 2011
    Applicants: Nippon Steel Corporation, ARCELOR France
    Inventors: Noriyuki Suzuki, Akihiro Uenishi, Yukihisa Kuriyama, Toshiyuki Niwa, Takuya Kuwayama
  • Patent number: 7886564
    Abstract: A system, method and software arrangement are provided for generating press-formed parts having a more consistent quality based on improved determination of processing conditions. For example, an apparatus can be configured to compare actual performance values of material properties provided by a material property database with standard values, and to adjust forming conditions such as a forming speed and a blank -holder pressure in accordance with the compared result. A control arrangement can be provided to control a press-forming device using the adjusted forming conditions. Accordingly, it may be possible to reduce occurrences of defects such as cracks and wrinkles when press-forming materials, and to obtain products having consistent quality and substantially identical shapes.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: February 15, 2011
    Assignees: Nippon Steel Corporation, Arcelor France
    Inventors: Noriyuki Suzuki, Akihiro Uenishi, Yukihisa Kuriyama, Toshiyuki Niwa, Takuya Kuwayama
  • Publication number: 20100066106
    Abstract: A vehicular metal absorber for efficiently absorbing by a short stroke the impact energy received from legs of a pedestrian at the time of a collision between a pedestrian and an automobile, reducing the residual crush, and protecting the legs of the pedestrian, that is, a long vehicular metal absorber comprising a center flange, a top web and bottom web connected to the two sides of the center flange, a top flange connected to the top web, and a bottom flange connected to the bottom web and formed overall into a hat shaped cross-section, wherein an internal angle ?1 formed by the top web with a flange plane including the top flange and bottom flange and an internal angle ?2 formed by the bottom web with the flange plane are respectively over 0 degree to less than 90 degrees, and in that one or both of the top web and bottom web are provided with a recessed or projecting bead substantially parallel to a front-back direction of a vehicle.
    Type: Application
    Filed: March 28, 2008
    Publication date: March 18, 2010
    Inventors: Koji Nojima, Isao Satsukawa, Takashi Ariga, Akihiro Uenishi, Toshiyuki Niwa
  • Publication number: 20100005845
    Abstract: A method of identification of a cause of occurrence of springback comprising a press forming analysis step of numerically analyzing forming conditions of press forming to obtain forming data of a press formed part, a processing step of processing at least one of a physical property value and physical property quantity data of part of the regions of said press formed part among forming data of said press formed part, and a springback value calculation step of calculating a springback value based on the results of said processing.
    Type: Application
    Filed: August 30, 2007
    Publication date: January 14, 2010
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Tohru Yoshida, Shunji Hawatashi, Seiichi Daimaru, Yasuharu Tanaka, Takashi Ariga, Toshiyuki Niwa, Yukihisa Kuriyama, Satoru Okayama
  • Publication number: 20090119031
    Abstract: A first step where a computer performs press forming analysis based on a shape of a formed product or a shape of a member, a blank holder force, a friction coefficient, a tensile strength of a material, a yield strength, a stress-strain relation, and a sheet thickness, as press forming conditions, to calculate sheet thickness distribution and post-formation strain distribution of the formed product; and a second step where the computer performs performance analysis based on the sheet thickness distribution, the post-formation strain distribution, and the shape of the formed product or the shape of the member, as state amounts of the formed product, to calculate performance of the member are included, in which the computer repeats the calculations performed in the process from the first step through the second step a predetermined number of times, with at least one of the press forming conditions being changed, to output an optimum press forming condition that gives a maximum value or a target value of the per
    Type: Application
    Filed: June 28, 2006
    Publication date: May 7, 2009
    Inventors: Toshiyuki Niwa, Hiroshi Yoshida, Eiji Isogai, Yuichi Yoshida
  • Publication number: 20080092620
    Abstract: A system, method and software arrangement are provided for generating press-formed parts having a more consistent quality based on improved determination of processing conditions. For example, an apparatus can be configured to compare actual performance values of material properties provided by a material property database with standard values, and to adjust forming conditions such as a forming speed and a blank-holder pressure in accordance with the compared result. A control arrangement can be provided to control a press-forming device using the adjusted forming conditions. Accordingly, it may be possible to reduce occurrences of defects such as cracks and wrinkles when press-forming materials, and to obtain products having consistent quality and substantially identical shapes.
    Type: Application
    Filed: September 8, 2005
    Publication date: April 24, 2008
    Applicants: Nippon Steel Corporation, Arcelor France
    Inventors: Noriyuki Suzuki, Akihiro Uenishi, Yukihisa Kuriyama, Toshiyuki Niwa, Takuya Kuwayama
  • Publication number: 20070282931
    Abstract: Exemplary embodiments of the present invention relate to a numerical analysis data providing system. The system can include a server side computer which may provide numerical analysis data to a user side computer connected to a network. The server side computer can record a material name and a property item with corresponding to any one or more types of property values from a mechanical property value, a thermal physical property value, and an electromagnetic property value as for plural materials. Such server side computer can extract one or more types of material property data from the mechanical property value, the thermal physical property value, and the electromagnetic property value corresponding to the material name and the property item recorded by a material property data storage arrangement based on the material name and the property item transmitted from the user side computer. In addition, the server side computer can transmit the extracted data to the user side computer.
    Type: Application
    Filed: December 10, 2004
    Publication date: December 6, 2007
    Inventors: Noriyuki Suzuki, Akihiro Uenishi, Yukihisa Kuriyama, Toshiyuki Niwa