Patents by Inventor Akio Mutou

Akio Mutou 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: 10637306
    Abstract: A stator for a simultaneous concentrated winding motor includes a core having 3×m teeth, and 3×m windings. The windings include at least a U1 winding and a U2 winding that belong to a U phase, a V1 winding and a V2 winding that belong to a V phase, and a W1 winding and a W2 winding that belong to a W phase. First lead wires of the U1 winding, the V1 winding, and the W1 winding extend, respectively, from the teeth on which the U1 winding, the V1 winding, and the W1 winding are arranged. First lead wires of the U2 winding, the V2 winding, and the W2 winding extend, respectively, from the teeth on which the U1 winding, the V1 winding, and the W1 winding are arranged.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: April 28, 2020
    Assignee: Daikin Industries, Ltd.
    Inventors: Hisato Sumitomo, Kazuo Ida, Akinobu Ishizaki, Hidemi Tanji, Akio Mutou
  • Publication number: 20180278101
    Abstract: A stator for a simultaneous concentrated winding motor includes a core having 3×m teeth, and 3×m windings. The windings include at least a U1 winding and a U2 winding that belong to a U phase, a V1 winding and a V2 winding that belong to a V phase, and a W1 winding and a W2 winding that belong to a W phase. First lead wires of the U1 winding, the V1 winding, and the W1 winding extend, respectively, from the teeth on which the U1 winding, the V1 winding, and the W1 winding are arranged. First lead wires of the U2 winding, the V2 winding, and the W2 winding extend, respectively, from the teeth on which the U1 winding, the V1 winding, and the W1 winding are arranged.
    Type: Application
    Filed: September 26, 2016
    Publication date: September 27, 2018
    Applicant: Daikin Industries, Ltd.
    Inventors: Hisato SUMITOMO, Kazuo IDA, Akinobu ISHIZAKI, Hidemi TANJI, Akio MUTOU
  • Patent number: 9991756
    Abstract: A stator for a motor of a compressor includes a stator core, insulator, coil, slot insulator, and inter-coil insulator. The stator core has a plurality of tooth portions arrayed circumferentially. The insulator is fitted to axial end faces of the stator core. The coil is wound on the tooth portions. The slot insulator is placed within slot portions that are spaces between circumferentially neighboring ones of the tooth portions, and which are interposed between the stator core and the coil. The inter-coil insulator is placed between circumferentially mutually neighboring windings of the coil. The inter-coil insulator is sheet shaped and folded over a width equal to double a sheet thickness at a folding-bottom portion extending along an axial direction. The folding-bottom portion is positioned on a distal end side of the tooth portions. Movement of the folding-bottom portion in a radial direction toward the rotor is restricted.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: June 5, 2018
    Assignee: Daikin Industries, Ltd.
    Inventors: Akinobu Ishizaki, Hidemi Tanji, Keiji Aota, Akio Mutou
  • Publication number: 20170353075
    Abstract: A stator for a motor of a compressor includes a stator core, insulator, coil, slot insulator, and inter-coil insulator. The stator core has a plurality of tooth portions arrayed circumferentially. The insulator is fitted to axial end faces of the stator core. The coil is wound on the tooth portions. The slot insulator is placed within slot portions that are spaces between circumferentially neighboring ones of the tooth portions, and which are interposed between the stator core and the coil. The inter-coil insulator is placed between circumferentially mutually neighboring windings of the coil. The inter-coil insulator is sheet shaped and folded over a width equal to double a sheet thickness at a folding-bottom portion extending along an axial direction. The folding-bottom portion is positioned on a distal end side of the tooth portions. Movement of the folding-bottom portion in a radial direction toward the rotor is restricted.
    Type: Application
    Filed: November 24, 2015
    Publication date: December 7, 2017
    Inventors: Akinobu ISHIZAKI, Hidemi TANJI, Keiji AOTA, Akio MUTOU
  • Patent number: 9637703
    Abstract: The lubricating oil composition of the invention comprises a lubricating base oil with a 100° C. kinematic viscosity of 1-20 mm2/s, (A) a friction modifier, (B) a first overbased metal salt obtained by overbasing an oil-soluble metal salt with an alkaline earth metal borate, and (C) an overbased second oil-soluble metal salt obtained by overbasing an oil-soluble metal salt with an alkaline earth metal carbonate.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: May 2, 2017
    Assignee: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Shigeki Matsui, Akira Yaguchi, Akio Mutou, Mari Nagae
  • Patent number: 8796194
    Abstract: The lubricating oil composition of the invention includes a lubricating base oil with a kinematic viscosity at 100° C. of 1-6 mm2/s, a % Cp of 70 or greater and a % CA of no greater than 2, and a viscosity index improver which, when added to the lubricating base oil, results in an A/B ratio of less than 3.2 and a C/B ratio of less than 1.5. A is the thickening effect on the kinematic viscosity at 100° C., B is the thickening effect on the HTHS viscosity at 150° C., and C is the thickening effect on the HTHS viscosity at 100° C.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: August 5, 2014
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Akio Mutou, Akira Yaguchi, Shigeki Matsui
  • Publication number: 20120283157
    Abstract: The lubricating oil composition of the invention comprises a lubricating base oil with a 100° C. kinematic viscosity of 1-20 mm2/s, (A) a friction modifier, (B) a first overbased metal salt obtained by overbasing an oil-soluble metal salt with an alkaline earth metal borate, and (C) an overbased second oil-soluble metal salt obtained by overbasing an oil-soluble metal salt with an alkaline earth metal carbonate.
    Type: Application
    Filed: September 27, 2010
    Publication date: November 8, 2012
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Shigeki Matsui, Akira Yaguchi, Akio Mutou, Mari Nagae
  • Publication number: 20120283159
    Abstract: The lubricating oil composition of the invention comprises a lubricating base oil with a 100° C. kinematic viscosity of 1-20 mm2/s, and (A) a viscosity index improver having a ratio M1/M2 of 0.20 or greater, between the total area of the peaks between chemical shifts of 36-38 ppm M1 and the total area of the peaks between chemical shifts of 64-66 ppm M2, with respect to the total area of all of the peaks, in the spectrum obtained by 13C-NMR, (B) a friction modifier, and (C) an overbased metal salt obtained by overbasing an oil-soluble metal salt with an alkaline earth metal borate.
    Type: Application
    Filed: September 27, 2010
    Publication date: November 8, 2012
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Shigeki Matsui, Akira Yaguchi, Akio Mutou, Mari Nagae
  • Publication number: 20120157361
    Abstract: The lubricating oil composition of the invention includes a lubricating base oil with a kinematic viscosity at 100° C. of 1-6 mm2/s, a % Cp of 70 or greater and a % CA of no greater than 2, and a viscosity index improver which, when added to the lubricating base oil, results in an A/B ratio of less than 3.2 and a C/B ratio of less than 1.5. A is the thickening effect on the kinematic viscosity at 100° C., B is the thickening effect on the HTHS viscosity at 150° C., and C is the thickening effect on the HTHS viscosity at 100° C.
    Type: Application
    Filed: August 30, 2010
    Publication date: June 21, 2012
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Akio Mutou, Akira Yaguchi, Shigeki Matsui
  • Patent number: 8137766
    Abstract: A homeotropic alignment liquid crystal film is provided with a liquid crystalline substance containing a side chain liquid crystalline compound having an oxetanyl group, as a constituent, aligned homeotropically on an alignment substrate while being in a liquid crystal state and fixed in the homeotropic alignment by allowing the oxetanyl group to react. Thus, the homeotropic alignment liquid crystal film can be stably produced without necessitating a complicated step such as light irradiation under an inert gas atmosphere and is excellent in alignment retainability after being fixed in the homeotropic alignment and in mechanical strength.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: March 20, 2012
    Assignee: Nippon Oil Corporation
    Inventors: Hitoshi Mazaki, Tetsuya Uesaka, Takashi Seki, Takuya Matsumoto, Akio Mutou
  • Publication number: 20100171916
    Abstract: A homeotropic alignment liquid crystal film is provided with a liquid crystalline substance containing a side chain liquid crystalline compound having an oxetanyl group, as a constituent, aligned homeotropically on an alignment substrate while being in a liquid crystal state and fixed in the homeotropic alignment by allowing the oxetanyl group to react. Thus, the homeotropic alignment liquid crystal film can be stably produced without necessitating a complicated step such as light irradiation under an inert gas atmosphere and is excellent in alignment retainability after being fixed in the homeotropic alignment and in mechanical strength.
    Type: Application
    Filed: March 18, 2010
    Publication date: July 8, 2010
    Applicant: NIPPON OIL CORPORATION
    Inventors: Hitoshi MAZAKI, Takashi SEKI, Takuya MATSUMOTO, Tetsuya UESAKA, Akio MUTOU
  • Patent number: 7732024
    Abstract: A homeotropic alignment liquid crystal film is provided with a liquid crystalline substance containing a side chain liquid crystalline compound having an oxetanyl group, as a constituent, aligned homeotropically on an alignment substrate while being in a liquid crystal state and fixed in the homeotropic alignment by allowing the oxetanyl group to react. Thus, the homeotropic alignment liquid crystal film can be stably produced without necessitating a complicated step such as light irradiation under an inert gas atmosphere and is excellent in alignment retainability after being fixed in the homeotropic alignment and in mechanical strength.
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: June 8, 2010
    Assignee: Nippon Oil Corporation
    Inventors: Hitoshi Mazaki, Takashi Seki, Takuya Matsumoto, Tetsuya Uesaka, Akio Mutou
  • Publication number: 20070263152
    Abstract: A homeotropic alignment liquid crystal film is provided with a liquid crystalline substance containing a side chain liquid crystalline compound having an oxetanyl group, as a constituent, aligned homeotropically on an alignment substrate while being in a liquid crystal state and fixed in the homeotropic alignment by allowing the oxetanyl group to react. Thus, the homeotropic alignment liquid crystal film can be stably produced without necessitating a complicated step such as light irradiation under an inert gas atmosphere and is excellent in alignment retainability after being fixed in the homeotropic alignment and in mechanical strength.
    Type: Application
    Filed: July 23, 2007
    Publication date: November 15, 2007
    Applicant: NIPPON OIL CORPORATION
    Inventors: Hitoshi MAZAKI, Takashi SEKI, Takuya MATSUMOTO, Tetsuya UESAKA, Akio MUTOU