Patents by Inventor Masaki Ohara

Masaki Ohara 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: 20190382870
    Abstract: Provided is a hydrometallurgical process for nickel oxide ore for recovering nickel and cobalt using a high pressure acid leach process, the process achieving simplification and durability improvement of production facilities, achieving cost reduction and suppression of environmental risk by the compression of the capacity of a tailings dam for storing wastes, and being capable of recycling and effectively utilizing the wastes as a resource. The hydrometallurgical process for nickel oxide ore for recovering nickel and cobalt using a high pressure acid leach process includes an ore processing step, a leaching step, a solid-liquid separation step, a neutralization step, a zinc removal step, a sulfurization step, and a final neutralization step, and further includes step (A), or further includes step (A) and, step (B-1) and/or step (B-2) after step (A).
    Type: Application
    Filed: August 29, 2019
    Publication date: December 19, 2019
    Inventors: Go Ohara, Yasumasa Kan, Masaki Imamura
  • Publication number: 20190338382
    Abstract: A method of heat-treating for a metal molded article includes: a shape holding layer formation step of forming on a shape holding layer having a melting point higher than a solidus temperature Ts of a composition of the metal molded article on a surface of the metal molded article by treating the metal molded article; and a first heat-treatment step of performing a first heat treatment on the metal molded article at a first temperature T1, after forming the shape holding layer. When a reference temperature Ta is a temperature lower than the solidus temperature Ts by 100° C., and Tm is the melting point of the shape holding layer, the shape holding layer formation step and the first heat-treatment step are performed so as to satisfy an expression Ta?T1?Tm.
    Type: Application
    Filed: January 31, 2018
    Publication date: November 7, 2019
    Inventors: Kousuke FUJIWARA, Hidetaka HARAGUCHI, Shuji TANIGAWA, Masashi KITAMURA, Masaki TANEIKE, Nobuhiko SAITO, Toshinobu OHARA
  • Publication number: 20190276923
    Abstract: Provided is a method for manufacturing a metal molded article capable of suppressing leaching of a molten liquid that may be created due to heat treatment of a metal member, from the metal member. The method for manufacturing a metal molded article includes the steps of: applying a ceramic coating to a metal member; and performing heat treatment of the metal member to which the ceramic coating has been applied.
    Type: Application
    Filed: February 4, 2019
    Publication date: September 12, 2019
    Inventors: Shuji TANIGAWA, Masashi KITAMURA, Kosuke FUJIWARA, Toshinobu OHARA, Masaki TANEIKE, Takahiro FUKUDA
  • Patent number: 8506733
    Abstract: The present invention provides a magnesium-based composite material that can achieve excellent performance such as high tensile strength not only at ordinary temperature but also at high temperature. The magnesium-based composite material of the present invention is Al2Ca-containing magnesium-based composite material, wherein said composite material is obtained by a solid-phase reaction of an aluminum-containing magnesium alloy and an additive, said additive being calcium oxide, and said composite material contains Al2Ca formed in the solid-phase reaction. In the magnesium-based composite material, CaO, in combination with Al2Ca, can be dispersed.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: August 13, 2013
    Assignee: Topy Kogyo Kabusikikaisya
    Inventors: Keitaro Enami, Shoji Ono, Masaki Ohara, Takanori Igarashi
  • Patent number: 7906219
    Abstract: A metallic glass laminate of the present invention is characterized in that a metallic glass layer of amorphous phase is formed on the substrate surface, and there is no continuous pore (pinhole) through the metallic glass layer. The metallic glass laminate is preferably obtained by solidification and lamination of at least part of the metallic glass powder in the molten state or in the supercooled liquid state on the substrate surface. Because of the dense metallic glass layer of homogenous amorphous phase, the functionalities of metallic glass such as corrosion resistance and wear resistance can be satisfactorily provided. A thick and a large-area metallic glass layer can be formed. The metallic glass layer can also be formed into various shapes within the supercooled liquid temperature range. In addition, a metallic glass bulk can be obtained by removing the substrate.
    Type: Grant
    Filed: March 25, 2005
    Date of Patent: March 15, 2011
    Assignees: Topy Kogyo Kabushiki Kaisha, Tohoku University, Akihisa Inoue
    Inventors: Masaki Ohara, Takanori Igarashi, Masaharu Sugiyama, Seiji Yamada, Kenichi Takahashi, Atsuo Mochizuki, Yoshitsugu Motoe, Akihisa Inoue, Hisamichi Kimura
  • Publication number: 20110033333
    Abstract: The present invention provides a magnesium-based composite material that can achieve excellent performance such as high tensile strength not only at ordinary temperature but also at high temperature. The magnesium-based composite material of the present invention is Al2Ca-containing magnesium-based composite material, wherein said composite material is obtained by a solid-phase reaction of an aluminum-containing magnesium alloy and an additive, said additive being calcium oxide, and said composite material contains Al2Ca formed in the solid-phase reaction. In the magnesium-based composite material, CaO, in combination with Al2Ca, can be dispersed.
    Type: Application
    Filed: March 11, 2009
    Publication date: February 10, 2011
    Applicant: Topy Kogyo Kabushiki Kaisha
    Inventors: Keitaro Enami, Shoji Ono, Masaki Ohara, Takanori Igarashi
  • Publication number: 20080248222
    Abstract: A metallic glass laminate of the present invention is characterized in that a metallic glass layer of amorphous phase is formed on the substrate surface, and there is no continuous pore (pinhole) through the metallic glass layer. The metallic glass laminate is preferably obtained by solidification and lamination of at least part of the metallic glass powder in the molten state or in the supercooled liquid state on the substrate surface. Because of the dense metallic glass layer of homogenous amorphous phase, the functionalities of metallic glass such as corrosion resistance and wear resistance can be satisfactorily provided. A thick and a large-area metallic glass layer can be formed. The metallic glass layer can also be formed into various shapes within the supercooled liquid temperature range. In addition, a metallic glass bulk can be obtained by removing the substrate.
    Type: Application
    Filed: March 25, 2005
    Publication date: October 9, 2008
    Applicants: TOPY KOGYO KABUSHIKI KAISHA, TOHOKU UNIVERSITY
    Inventors: Masaki Ohara, Takanori Igarashi, Masaharu Sugiyama, Seiji Yamada, Kenichi Takahashi, Atsuo Mochizuki, Yoshitsugu Motoe, Akihisa Inoue, Hisamichi Kimura
  • Patent number: 7004474
    Abstract: A seal for an endless track has a cross section having a centerline parallel to an axis of the seal and a configuration symmetric with respect to the centerline of the cross section. The seal can include an elastically deformably configured portion having a cross section like alphabetical letter X, and a protrusion extending from an intersection of legs of letter X in a bushing-side direction further than a plane connecting bushing-side end portions of the legs of letter X. The protrusion has an end surface where the protrusion contacts the bushing. The seal can further include an embedding portion embedded in a space between legs of letter X, on a bushing-side of the intersection of the legs of letter X.
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: February 28, 2006
    Assignees: Topy Kogyo Kabushiki Kaisha, Nippon Valqua Industries, Ltd.
    Inventors: Kenichi Takahashi, Masaki Ohara, Akiyoshi Kurihara, Seiji Oomura, Noriyuki Andou, Takashi Konno, Hiromasa Muraki, Akira Muramatsu, Shunsuke Tanaka, Kouji Toriyama
  • Patent number: 6913330
    Abstract: An endless track includes an iron link belt, a continuous pad, and a connecting device. The iron link belt includes a link unit assembly constructed of a plurality of link units connected to each other. Each link unit includes a pair of links. The iron link belt may include a plate welded to the pair of links and extending perpendicularly to a direction in which the link unit assembly extends. The continuous pad includes the same number of core metal plates as that of the link units and a single urethane rubber belt covering and being attached to a ground opposing surface of each of the core metal plates. The urethane rubber belt extends continuously over all of the core metal plates. The urethane rubber belt may include a small thickness portion positioned between two adjacent core metal plates. The connecting device connects the iron link belt and the continuous pad.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: July 5, 2005
    Assignee: Topy Kogyo Kabushiki Kaisha
    Inventors: Hiroyuki Takeno, Hirokatsu Niitsu, Kiyokazu Niwa, Makoto Takagi, Masaki Ohara
  • Publication number: 20040007833
    Abstract: A seal for an endless track has a cross section having a centerline parallel to an axis of the seal and a configuration symmetric with respect to the centerline of the cross section. The seal can include an elastically deformably configured portion having a cross section like alphabetical letter X, and a protrusion extending from an intersection of legs of letter X in a bushing-side direction further than a plane connecting bushing-side end portions of the legs of letter X. The protrusion has an end surface where the protrusion contacts the bushing. The seal can further include an embedding portion embedded in a space between legs of letter X, on a bushing-side of the intersection of the legs of letter X.
    Type: Application
    Filed: June 25, 2003
    Publication date: January 15, 2004
    Applicants: TOPY KOGYO KABUSHIKI KAISHA, NIPPON VALQUA INDUSTRIES, LTD.
    Inventors: Kenichi Takahashi, Masaki Ohara, Akiyoshi Kurihara, Seiji Oomura, Noriyuki Andou, Takashi Konno, Hiromasa Muraki, Akira Muramatsu, Shunsuke Tanaka, Kouji Toriyama
  • Publication number: 20020157927
    Abstract: An endless track includes an iron link belt, a continuous pad, and a connecting device. The iron link belt includes a link unit assembly constructed of a plurality of link units connected to each other. Each link unit includes a pair of links. The iron link belt may include a plate welded to the pair of links and extending perpendicularly to a direction in which the link unit assembly extends. The continuous pad includes the same number of core metal plates as that of the link units and a single urethane rubber belt covering and being attached to a ground opposing surface of each of the core metal plates. The urethane rubber belt extends continuously over all of the core metal plates. The urethane rubber belt may include a small thickness portion positioned between two adjacent core metal plates. The connecting device connects the iron link belt and the continuous pad.
    Type: Application
    Filed: September 20, 2001
    Publication date: October 31, 2002
    Inventors: Hiroyuki Takeno, Hirokatsu Niitsu, Kiyokazu Niwa, Makoto Takagi, Masaki Ohara
  • Patent number: 5758301
    Abstract: The deceleration of a vehicle on receiving an impact is detected to produce an analog deceleration signal, which is converted to digital samples. The digital samples that occur during a successively shifted window are integrated to produce a velocity signal. The analog deceleration signal is passed through an analog bandpass filter to extract frequency components which appear uniquely on receiving the impact The bandpass-filtered signal is converted to a digital bandpass-filtered signal which is converted to a first impact energy signal having an absolute digital value and the velocity signal is differentiated to produce a second impact energy signal. The first and second impact energy signals are compared with first and second threshold values and first and second decision outputs are produced when the first and second impact energy signals are respectively higher than the first and second threshold values.
    Type: Grant
    Filed: July 31, 1995
    Date of Patent: May 26, 1998
    Assignee: NEC Corporation
    Inventors: Tomomi Saito, Masaki Ohara
  • Patent number: 4690965
    Abstract: A rubber composition having improved reinforcing properties and low heat build-up is disclosed, which comprises 20-150 parts by weight of carbon black having IA of not less than 60 mg/g and DPB of not less than 75 ml/100 g and 0.1-3 parts by weight of at least one of p-nitroso-N-methylaniline, p-nitroso-N-ethylaniline and p-nitroso-N-propylaniline, based on 100 parts by weight of rubber.
    Type: Grant
    Filed: May 2, 1986
    Date of Patent: September 1, 1987
    Assignee: Bridgestone Corporation
    Inventors: Yasushi Hirata, Hitoshi Kondo, Goro Yokoyama, Masaki Ohara