Patents by Inventor Fumiaki Takagi

Fumiaki Takagi 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: 11938946
    Abstract: To provide a lane shape recognition system and a lane shape recognition method which can determine an effective range of the approximated curve corresponding to the lane shape. A lane shape recognition system and a lane shape recognition method detects relative positions of a series of marks or objects which are continuously arranged in front of an own vehicle, with respect to the own vehicle; calculates a curve which approximates the relative positions of the series of marks or objects with respect to the own vehicle; and when a plurality of curves are calculated, mutually compare shapes of plurality of curves and determines the curves corresponding to the lane shape and the effective range of the curves.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: March 26, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Toshihide Satake, Fumiaki Takagi, Yuji Shimizu, Kazuhiro Nishiwaki
  • Publication number: 20230056929
    Abstract: Provided is a preceding vehicle determining device including: a signal acquisition unit configured to acquire a signal from an object detection device; a border setting unit configured to set a border of a lane on which the own vehicle is traveling; a determination area setting unit configured to set a preceding vehicle determination area being an area forward of the own vehicle based on at least one piece of information out of vehicle type information, device type information, detection state information, or preceding vehicle information being information on a vehicle set as a preceding vehicle in previous processing, and based on the border set by the border setting unit; and a preceding vehicle determining unit configured to determine whether the another vehicle is to be set as the preceding vehicle based on a position of the another vehicle with respect to the preceding vehicle determination area.
    Type: Application
    Filed: January 31, 2020
    Publication date: February 23, 2023
    Applicant: Mitsubishi Electric Corporation
    Inventors: Saori WADA, Fumiaki TAKAGI, Toshihide SATAKE, Kazuhiro NISHIWAKI, Yuji SHIMIZU
  • Publication number: 20230031419
    Abstract: To provide a preceding vehicle determination system and a preceding vehicle determination method which can improve the determination accuracy of the preceding vehicle, considering an estimation error of the traveling lane of the own vehicle. A preceding vehicle determination system and a preceding vehicle determination method estimates a high probability region which is a region where the own vehicle probably travels and estimates a middle probability region which is a region where a possibility that the own vehicle travels is lower than the high probability region, based on the traveling state of the own vehicle; and determines whether the front vehicle is a which is traveling forward in a traveling lane of the own vehicle, based on the position history of the front vehicle, the high probability region, and the middle probability region.
    Type: Application
    Filed: January 27, 2020
    Publication date: February 2, 2023
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yuji SHIMIZU, Fumiaki TAKAGI, Toshihide SATAKE, Kazuhiro NISHIWAKI
  • Publication number: 20220212673
    Abstract: To provide a lane shape recognition system and a lane shape recognition method which can determine an effective range of the approximated curve corresponding to the lane shape. A lane shape recognition system and a lane shape recognition method detects relative positions of a series of marks or objects which are continuously arranged in front of an own vehicle, with respect to the own vehicle; calculates a curve which approximates the relative positions of the series of marks or objects with respect to the own vehicle; and when a plurality of curves are calculated, mutually compare shapes of plurality of curves and determines the curves corresponding to the lane shape and the effective range of the curves.
    Type: Application
    Filed: July 18, 2019
    Publication date: July 7, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Toshihide SATAKE, Fumiaki TAKAGI, Yuji SHIMIZU, Kazuhiro NISHIWAKI
  • Patent number: 10622925
    Abstract: To estimate a magnet magnetic flux or a magnet temperature with higher accuracy during a three-phase short circuit operation, than in a case only a d-axis current is used. A control device includes a phase short circuit unit for short-circuiting three-phase terminals of a permanent-magnet-type synchronous machine having a permanent magnet. During three-phase short circuit operation in which the three-phase terminals are short-circuited by the phase short circuit unit and the permanent-magnet-type synchronous machine is operated, the control device estimates a magnet state of the permanent magnet on the basis of a d-axis current, a q-axis current and a magnetic characteristic.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: April 14, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Fumiaki Takagi, Takahiko Kobayashi, Masahiro Iezawa
  • Publication number: 20180171255
    Abstract: A water-soluble metalworking fluid of the invention contains a component (A) that is a dicarboxylic acid including a sulfide structure and a component (B) that is a monocarboxylic acid, in which the fluid contains no polyalkylene glycol. A metalworking coolant of the invention is provided by diluting the above-described water-soluble metalworking fluid with water.
    Type: Application
    Filed: March 23, 2015
    Publication date: June 21, 2018
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Yosuke JIBIKI, Fumiaki TAKAGI, Tomohiko KITAMURA
  • Publication number: 20170331404
    Abstract: To estimate a magnet magnetic flux or a magnet temperature with higher accuracy during a three-phase short circuit operation, than in a case only a d-axis current is used. A control device includes a phase short circuit unit for short-circuiting three-phase terminals of a permanent-magnet-type synchronous machine having a permanent magnet. During three-phase short circuit operation in which the three-phase terminals are short-circuited by the phase short circuit unit and the permanent-magnet-type synchronous machine is operated, the control device estimates a magnet state of the permanent magnet on the basis of a d-axis current, a q-axis current and a magnetic characteristic.
    Type: Application
    Filed: August 26, 2015
    Publication date: November 16, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Fumiaki TAKAGI, Takahiko KOBAYASHI, Masahiro IEZAWA
  • Patent number: 9752094
    Abstract: Provided are a water-soluble metalworking oil agent (cutting oil agent or grinding oil agent) and a metalworking liquid, each of which has excellent cutting machining performance or grinding machining performance of aluminum or aluminum alloys, hardly causes rotting deterioration, and has excellent emulsion dispersion stability and stability of undiluted liquid, by containing specified components (A) to (E) as essential components without containing a machinability-improving agent with a high environmental load, such as chlorine, sulfur, and phosphorus. Provided is also a metalworking method using the same.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: September 5, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Fumiaki Takagi, Tomohiko Kitamura
  • Publication number: 20170175030
    Abstract: A water-soluble metalworking fluid of the invention contains: a component (A) that is a dicarboxylic acid including a sulfide structure; a component (B) that is a polyalkylene glycol; a component (C) that is polyhydric alcohol polyalkylene oxide adducts; and a component (D) that is a monocarboxylic acid.
    Type: Application
    Filed: March 23, 2015
    Publication date: June 22, 2017
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Yosuke JIBIKI, Fumiaki TAKAGI, Tomohiko KITAMURA
  • Patent number: 9683189
    Abstract: The invention provides a water-soluble metal-working oil agent, including a component A, a component B, a component C, and a component D, wherein the component A is an ester compound which has a characteristic temperature, as measured in accordance with JIS K2242, of 570° C. or higher and which is contained in the water-soluble metal-working oil agent in an amount of 10 mass % or more with respect to the entire amount of the agent; the component B is at least one condensed fatty acid which is selected from a condensed fatty acid (1), produced through dehydration condensation of a hydroxycarboxylic acid, and a condensed fatty acid (2), produced through dehydration condensation of an alcoholic hydroxyl group of the condensed fatty acid (1) with a monovalent carboxylic acid, which has a characteristic temperature, as measured in accordance with JIS K2242, of 650° C. or higher, and which is contained in the water-soluble metal-working oil agent in an amount of 7.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: June 20, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Fumiaki Takagi, Yoichiro Jido
  • Patent number: 9605232
    Abstract: The invention provides a water-soluble metal-working oil agent, including a component A and a component B, wherein the component A is a mineral oil which has a characteristic temperature, as measured in accordance with JIS K2242, of 570° C. or higher, and the component B is at least one condensed fatty acid which is selected from a condensed fatty acid (1), produced through dehydration condensation of a hydroxycarboxylic acid, and a condensed fatty acid (2), produced through dehydration condensation of an alcoholic hydroxyl group of the condensed fatty acid (1) with a monovalent carboxylic acid, which has a characteristic temperature, as measured in accordance with JIS K2242, of 650° C. or higher. The agent can provide excellent workability with a hard-to-work material and can prolong tool life.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: March 28, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Fumiaki Takagi, Yoichiro Jido
  • Publication number: 20150376536
    Abstract: A water-based metalworking fluid contains a component (A) of alkanolamine represented by a formula (1) below as an amine component and a component (B) of alkanolamine represented by a formula (2) below as an amine component, a molar ratio of an amine component having a molecular weight of 90 or less to a total of the amine components (the amine component having a molecular weight of 90 or less/the total of the amine components) is 0.67 or less. In the formula, R1 represents hydrogen or an alkyl group having 1 to 3 carbon atoms; n is 1 to 3; and R1 may be mutually the same or different. In the formula: R2 represents an alkyl group having 1 to 10 carbon atoms; and Z1 and Z2 each independently represent an alkylene group having 2 to 8 carbon atoms.
    Type: Application
    Filed: February 19, 2014
    Publication date: December 31, 2015
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Hiroshi KAWASAKI, Fumiaki TAKAGI, Yosuke JIBIKI
  • Publication number: 20150299599
    Abstract: Provided are a water-soluble metalworking oil agent (cutting oil agent or grinding oil agent) and a metalworking liquid, each of which has excellent cutting machining performance or grinding machining performance of aluminum or aluminum alloys, hardly causes rotting deterioration, and has excellent emulsion dispersion stability and stability of undiluted liquid, by containing specified components (A) to (E) as essential components without containing a machinability-improving agent with a high environmental load, such as chlorine, sulfur, and phosphorus. Provided is also a metalworking method using the same.
    Type: Application
    Filed: November 19, 2013
    Publication date: October 22, 2015
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Fumiaki Takagi, Tomohiko Kitamura
  • Patent number: 9029306
    Abstract: A water-soluble metalworking oil agent is provided by blending the following components A, B, C and D: (A) at least one of a condensed fatty acid obtained by dehydration-condensing a ricinoleic acid, and a condensed fatty acid obtained by dehydration-condensing a monovalent carboxylic acid with an alcoholic hydroxyl group of a condensed fatty acid obtained by dehydration-condensing a ricinoleic acid; (B) an ester compound provided by a dehydration condensate of a monovalent or multivalent alcohol and a monovalent carboxylic acid; (C) an amine compound; and (D) water. A blend ratio of the component A is 10 mass % or more of a total amount of the oil agent and a blend ratio of the component B is 5 mass % or more of the total amount of the oil agent.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: May 12, 2015
    Assignee: Idemitsu Kosan., Ltd.
    Inventors: Fumiaki Takagi, Yoichiro Jido
  • Patent number: 9023234
    Abstract: An aqueous heat treatment liquid composition exhibiting a favorable rust resistance with a high cooling capability and a high uneven-cooling resistance is provided. The aqueous heat treatment liquid composition contains a hyperbranched polyglycerol. A mass average absolute molecular weight of the aqueous heat treatment liquid composition is preferably in a range of 5,000 to 500,000. When the aqueous heat treatment liquid composition is used for quenching of a metallic component, the aqueous heat treatment liquid composition can exhibit a favorable rust resistance with a high cooling capability and a high uneven-cooling resistance.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: May 5, 2015
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Katsumi Ichitani, Fumiaki Takagi, Masami Yamanaka
  • Patent number: 8962899
    Abstract: Provided is a lubricant for metal working comprising a vinylidene compound having 12 to 64 carbon atoms obtained by oligomerizing ?-olefins, having 4 to 20 carbon atoms, using a metallocene catalyst. The lubricant for metal working is excellent in a workability and a surface detergency property and has a high flash point and can reduce environmental pollution.
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: February 24, 2015
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Fumiaki Takagi, Youichiro Jido
  • Publication number: 20140373584
    Abstract: The invention provides a water-soluble metal-working oil agent, including a component A and a component B, wherein the component A is a mineral oil which has a characteristic temperature, as measured in accordance with JIS K2242, of 570° C. or higher, and the component B is at least one condensed fatty acid which is selected from a condensed fatty acid (1), produced through dehydration condensation of a hydroxycarboxylic acid, and a condensed fatty acid (2), produced through dehydration condensation of an alcoholic hydroxyl group of the condensed fatty acid (1) with a monovalent carboxylic acid, which has a characteristic temperature, as measured in accordance with JIS K2242, of 650° C. or higher. The agent can provide excellent workability with a hard-to-work material and can prolong tool life.
    Type: Application
    Filed: November 15, 2012
    Publication date: December 25, 2014
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Fumiaki Takagi, Yoichiro Jido
  • Publication number: 20140326117
    Abstract: The invention provides a water-soluble metal-working oil agent, including a component A, a component B, a component C, and a component D, wherein the component A is an ester compound which has a characteristic temperature, as measured in accordance with JIS K2242, of 570° C. or higher and which is contained in the water-soluble metal-working oil agent in an amount of 10 mass % or more with respect to the entire amount of the agent; the component B is at least one condensed fatty acid which is selected from a condensed fatty acid (1), produced through dehydration condensation of a hydroxycarboxylic acid, and a condensed fatty acid (2), produced through dehydration condensation of an alcoholic hydroxyl group of the condensed fatty acid (1) with a monovalent carboxylic acid, which has a characteristic temperature, as measured in accordance with JIS K2242, of 650° C. or higher, and which is contained in the water-soluble metal-working oil agent in an amount of 7.
    Type: Application
    Filed: November 15, 2012
    Publication date: November 6, 2014
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Fumiaki Takagi, Yoichiro Jido
  • Patent number: 8703684
    Abstract: Provided is a water-based lubricant comprising a hyperbranch-type polyglycerol having an absolute molecular weight of from 5,000 to 500,000. The water-based lubricant has a small friction coefficient and is excellent in lubrication performance and defoamability, as compared with conventional water-based lubricants comprising an ethylene/propylene oxide copolymer, and is favorable, for example, for a water-based metal processing agent and a hydraulic pressure fluid.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: April 22, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Toyoji Kakuchi, Toshifumi Satoh, Ryosuke Sakai, Fumiaki Takagi, Masami Yamanaka
  • Patent number: 8486874
    Abstract: To provide a water-soluble working fluid which less adversely affects the human body and the ecological system as compared with conventional water-soluble working fluids, which has high rotting resistance, and which provides excellent working performance. The water-soluble working fluid of the invention contains methyldicyclohexylamine.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: July 16, 2013
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Fumiaki Takagi, Masami Yamanaka, Hiroshi Kawasaki, Youichiro Jido, Takashi Urabe