Patents by Inventor Hiroaki Kawasaki

Hiroaki Kawasaki 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: 8726724
    Abstract: A system detects deflated tires based on a resonance frequency of tires with a vehicle and a relative comparison value of rotation speeds of the tires. The system includes: a rotation information detection means for detecting rotation information of the tires; a rotation speed calculation means for calculating rotation speeds of the tires; a resonance frequency assumption means for assuming a resonance frequency of the tires; and a determination means for detection of deflated tires using a decreased pressure determination index calculated by a relative comparison of the rotation speeds of the tires and the resonance frequency. The determination means is so configured as to reduce the second threshold to be compared with the decreased pressure determination index to a value equal to or higher than 1% and equal to or lower than 90% and to detect deflated tires when the decreased pressure determination index exceeds the reduced threshold.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: May 20, 2014
    Assignees: Sumitomo Rubber Industries, Ltd., Honda Motor Co., Ltd.
    Inventors: Yuji Oshiro, Seigou Sakagami, Masashi Kitano, Hiroaki Kawasaki, Tomonori Sakai, Shinya Notomi, Kazunari Okada
  • Publication number: 20140130590
    Abstract: An apparatus for detecting a decrease in tire pressure based on a resonance frequency of a tire installed in a vehicle includes rotation information detection means for detecting rotation information of the tire, resonance frequency estimate means for estimating the resonance frequency of the tire from the rotation information of the tire, and judgment means for judging the decrease in the tire pressure by comparison between the resonance frequency estimated by the resonance frequency estimate means and a reference frequency preliminarily determined by learning at the time of initialization. An effective speed region when the reference frequency is determined at the time of the initialization is a first speed or less. The apparatus further includes effective speed region change means for extending an upper limit of the effective speed region to a second speed which is larger than the first speed at the time of shifting.
    Type: Application
    Filed: July 8, 2013
    Publication date: May 15, 2014
    Inventors: Atsushi NOMURA, Seigou SAKAGAMI, Hiroaki KAWASAKI
  • Publication number: 20140127347
    Abstract: A first fitting surface 11 and a first mating surface 12 taking a concave shape are formed on a fixed mold 1, a second fitting surface 21 to be fitted to the first fitting surface 11 in clamping and a second mating surface 22 taking a convex shape which is to be mated in the first mating surface 12 in the clamping are formed in a moving mold 2, and a concave portion is provided on a bottom surface of the first mating surface 12 to form a cavity 3. Consequently, the fixed mold 1 and the moving mold 2 are positioned by fitting the first fitting surface 11 and the second fitting surface 21 and mating the first mating surface 12 and the second mating surface 22. Consequently, it is not necessary to provide a guide pin in order to carry out the positioning and a size of a device can be reduced correspondingly. Moreover, it is possible to decrease heat capacities of the fixed mold 1 and the moving mold 2 by the reduction in the size, thereby decreasing consumed power required for a temperature control.
    Type: Application
    Filed: June 16, 2011
    Publication date: May 8, 2014
    Applicants: JNL Corporation, Century Innovation Corporation
    Inventor: Hiroaki Kawasaki
  • Patent number: 8680737
    Abstract: A stator 3 is provided with a plurality of magnetic poles 3a on the outer circumference thereof, and is configured from a plurality of layers of plate-shaped members. A rotor 4 is rotatably disposed around the stator. The inner circumferential face of the rotor is provided with a magnet 5. The outer circumferential ends of the magnetic poles of the stator are provided with an extended portion that is bent such that at least one plate-shaped member, including an outermost layer, of the plurality of plate-shaped members is substantially parallel to the magnet. When the inner diameter of a bent portion of a plate-shaped member that is the closest to the magnet of the at least one plate-shaped member constituting the extended portion is taken as R1i, and the thickness of the closest plate-shaped member is taken as T1, R1i<T1 is satisfied. Accordingly, it is possible to improve the driving efficiency of an outer rotor-type motor.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: March 25, 2014
    Assignee: Panasonic Corporation
    Inventors: Hiroaki Kawasaki, Yuichi Yoshikawa, Atsuyoshi Koshiba, Koji Kadowaki, Yasuo Kunishige, Yasuhiro Inoue
  • Publication number: 20140079325
    Abstract: An information processing apparatus that stores first image data in a memory; acquires second image data; determines whether the second image data is similar to the first image data; acquires a first rating corresponding to the first image data and a second rating corresponding to the second image data; and replaces the first image data stored in the memory with the second image data acquired via a communication interface when it is determined that the second image data is similar to the first image data and the second rating is higher than the first rating.
    Type: Application
    Filed: September 9, 2013
    Publication date: March 20, 2014
    Applicant: Buffalo Inc.
    Inventors: Kenji TAKAHASHI, Hayato Kato, Hiroaki Kawasaki
  • Publication number: 20140015363
    Abstract: A motor of the invention has a rotary body of a rotor, and the rotary body includes an outer core constituting an outer portion of the rotary body, an inner core constituting an inner portion connected to a shaft, and a dielectric layer disposed between the outer core and the inner core. The outer core has a protruding portion that protrudes inward from an inner surface thereof, and the inner core has a protruding portion that protrudes outward from an outer surface thereof, wherein the outer core and the inner core are so disposed that an end face of the protruding portion of the outer core and an end face of the protruding portion of the inner core confront partially with respect to each other.
    Type: Application
    Filed: April 19, 2013
    Publication date: January 16, 2014
    Applicant: Panasonic Corporation
    Inventors: Takeshi KOWA, Hiroaki KAWASAKI, Akihiko WATANABE, Tatsuo MAETANI, Yoshinori ISOMURA
  • Publication number: 20130313934
    Abstract: Provided are a rotor of a motor capable of attaining a high-speed rotation by appropriately dispersing a stress exerted on a flux barrier portion while reducing a leakage of magnetic flux, and a fan driving motor including the rotor. A second inner wall surface is greater than a first inner wall surface in length in a cross-section perpendicular to a rotational axis (C). A side wall surface has a flux barrier wall surface extending from each of both ends of the second inner wall surface in the cross-section perpendicular to the rotational axis (C), the flux barrier wall surface extending outward relative to the second inner wall surface in an extending direction of the second inner wall surface and more distant from an outer edge of a rotor as it goes from the second inner wall surface toward the first inner wall surface in the cross-section perpendicular to the rotational axis (C).
    Type: Application
    Filed: December 6, 2011
    Publication date: November 28, 2013
    Applicant: PANASONIC CORPORATION
    Inventors: Hiroaki Kawasaki, Yuichi Yoshikawa
  • Publication number: 20130313933
    Abstract: Provided are a rotor of a motor capable of attaining a high-speed rotation by appropriately dispersing a stress exerted on a flux barrier portion while reducing a leakage of magnetic flux, and a fan driving motor including the rotor. A second inner wall surface is greater than a first inner wall surface in length in a cross-section perpendicular to a rotational axis (C). A side wall surface has a flux barrier wall surface extending from each of both ends of the second inner wall surface in the cross-section perpendicular to the rotational axis (C), the flux barrier wall surface extending outward relative to the second inner wall surface in an extending direction of the second inner wall surface and more distant from an outer edge of a rotor as it goes from the second inner wall surface toward the first inner wall surface in the cross-section perpendicular to the rotational axis (C).
    Type: Application
    Filed: December 6, 2011
    Publication date: November 28, 2013
    Applicant: PANASONIC CORPORATION
    Inventors: Hiroaki Kawasaki, Yuichi Yoshikawa
  • Patent number: 8591218
    Abstract: A injection device in molding machine is capable of efficiently heating and melting a plurality of charged pellets in a short period of time, and injecting a melting resin with superior quality. The injection device has a cylinder including a pellet supply port, a plunger, a driving unit, a melting instrument with a plurality of melting holes, which are cone-shaped passages, formed in a cylinder-shaped instrument body to communicate from inflow-side large openings to outflow-side small openings, a nozzle provided on an injection side of the cylinder and a heating unit heating the melting instrument. A diameter of the tip-end of the plunger is set to be the same as a diameter of the outflow side face of the melting machine.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: November 26, 2013
    Assignee: Century Innovation Corporation
    Inventor: Hiroaki Kawasaki
  • Publication number: 20130252417
    Abstract: A thin film forming method in which a thin film is formed on a surface of a target object to be processed to fill a recess formed in the surface of the target object includes the steps of forming a metal layer for filling on the surface of the target object to fill the recess formed in the surface of the target object and forming a metal film for preventing diffusion on an entire surface of the target object to cover the metal layer for filling. The thin film forming method further includes the step of annealing the target object having the metal film for preventing diffusion formed thereon.
    Type: Application
    Filed: September 14, 2012
    Publication date: September 26, 2013
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Tadahiro ISHIZAKA, Jonathan Rullan, Osamu Yokoyama, Atsushi Gomi, Chiaki Yasumuro, Takara Kato, Tatsuo Hatano, Hiroaki Kawasaki
  • Publication number: 20130197190
    Abstract: The method for producing a surfactin or a salt thereof according to the present invention comprises the steps of adding an organic solvent containing a branched alkyl alcohol to a culture fluid containing the surfactin or the salt thereof, or to a solution obtained by removing an insoluble component from the culture fluid, and extracting the surfactin or the salt thereof with the organic solvent, wherein the surfactin or the salt thereof is represented by the formula (1): wherein * indicates an optically active center; X is an amino acid selected from leucine, isoleucine and valine; R is a C9-13 alkyl group or a C9-13 branched alkyl group; and M is an alkali metal, an alkaline earth metal, an optionally-substituted amine or the like.
    Type: Application
    Filed: September 30, 2011
    Publication date: August 1, 2013
    Applicant: Kaneka Corporation
    Inventors: Masashi Izumida, Hiroaki Kawasaki, Tadashi Moroshima
  • Patent number: 8405276
    Abstract: The motor comprises a stator, a rotor, and magnets. The stator has a plurality of magnetic poles circumferentially arranged at first spaced intervals. The rotor is rotatably arranged in a position opposing to the stator. The magnets are arranged at second spaced intervals circumferentially on a surface of the rotor. The stator is formed by laminating plate materials, and a plurality of laminated plate materials at least including outermost layers of a laminated body thereof are bent in a direction substantially parallel to the magnet in order to form extended portions. And, when a magnet opposed area of pole tip portion being closest to a magnet including the extended portion is S, and a sectional area of magnetic pole is A, then area ratio (S/A) fulfills the relation of 4.8>(S/A).
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: March 26, 2013
    Assignee: Panasonic Corporation
    Inventors: Hiroaki Kawasaki, Yuichi Yoshikawa, Atsuyoshi Koshiba, Yasuhiro Inoue, Koji Kadowaki, Yasuo Kunishige
  • Publication number: 20130071510
    Abstract: A injection device in molding machine is capable of efficiently heating and melting a plurality of charged pellets in a short period of time, and injecting a melting resin with superior quality. The injection device has a cylinder including a pellet supply port, a plunger, a driving unit, a melting instrument with a plurality of melting holes, which are cone-shaped passages, formed in a cylinder-shaped instrument body to communicate from inflow-side large openings to outflow-side small openings, a nozzle provided on an injection side of the cylinder and a heating unit heating the melting instrument. A diameter of the tip-end of the plunger is set to be the same as a diameter of the outflow side face of the melting machine.
    Type: Application
    Filed: April 20, 2012
    Publication date: March 21, 2013
    Applicant: Century Innovation Corporation
    Inventor: Hiroaki KAWASAKI
  • Patent number: 8347704
    Abstract: The detection apparatus includes means for detecting rotation speed information of the respective wheels of a vehicle; means for estimating, a frequency characteristic of the wheel rotation speed information; and means for determining, based on the estimated frequency characteristic, a tire having a decreased air pressure. The frequency characteristic estimate means includes, to a time-series signal including the wheel rotation speed information: means for time-series estimating a third order or more linear model parameter; means for generating pseudo input data; means for estimating, based on the estimated linear model parameter and the pseudo input data, output data to a linear model; means for identifying, based on the pseudo input data and the estimated output, a linear model parameter for which the order is reduced to a second order; and means for estimating, based on the identified parameter for which the order is reduced to the second order, a resonance frequency of a tire torsional direction.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: January 8, 2013
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Hiroaki Kawasaki
  • Patent number: 8351149
    Abstract: When inserted in the slot 150 of the storage unit main body 100, the cartridge-type HDD 200a is situated with the slight clearance between the protrusion 164 of the slot 150 and the upper surface of the cartridge-type HDD 200a. In addition, the protrusion 166 of the slot 150 is loosely fitted in the recess 216 of the cartridge-type HDD 200a.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: January 8, 2013
    Assignee: Buffalo Inc.
    Inventors: Tomoaki Kouyama, Satoru Goto, Takayuki Kakuta, Hiroaki Kawasaki, Takashi Ishidoshiro
  • Publication number: 20120304754
    Abstract: A system detects deflated tires based on a resonance frequency of tires with a vehicle and a relative comparison value of rotation speeds of the tires. The system includes: a rotation information detection means for detecting rotation information of the tires; a rotation speed calculation means for calculating rotation speeds of the tires; a resonance frequency assumption means for assuming a resonance frequency of the tires; and a determination means for detection of deflated tires using a decreased pressure determination index calculated by a relative comparison of the rotation speeds of the tires and the resonance frequency. The determination means is so configured as to reduce the second threshold to be compared with the decreased pressure determination index to a value equal to or higher than 1% and equal to or lower than 90% and to detect deflated tires when the decreased pressure determination index exceeds the reduced threshold.
    Type: Application
    Filed: May 30, 2012
    Publication date: December 6, 2012
    Inventors: Yuji Oshiro, Seigou Sakagami, Masashi Kitano, Hiroaki Kawasaki, Tomonori Sakai, Shinya Notomi, Kazunari Okada
  • Patent number: 8306775
    Abstract: A rotation speed information detection apparatus, including: a wheel sensor for detecting passage of teeth of a gear provided in association with tires of a vehicle; a number-of-teeth calculation means for calculating the number of teeth of the gear passed per a sampling cycle set in advance; and a wheel speed calculation means for regularly calculating rotation speed information of the tire with using the number of teeth calculated. The number-of-teeth calculation means is configured to use a ratio between time information at the point and a remaining time until the time at which the next sampling cycle is started is reached to thereby calculate the number of remaining teeth to calculate the number of teeth passed during the sampling cycle.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: November 6, 2012
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Hajime Fujita, Hiroaki Kawasaki
  • Patent number: 8299909
    Abstract: An apparatus for detecting a decrease in a tire air pressure includes; a rotation velocity information detection means for regularly detecting tire rotation velocity information regarding the respective wheels of a vehicle; a resonance frequency estimation means for estimating a resonance frequency of the rotation velocity information based on the rotation velocity information obtained by the rotation velocity information detection means; and a determination means for determining, based on the estimated resonance frequency, a decrease in the tire air pressure. The apparatus includes a data rejecting means for rejecting data of rotation velocity information hindering the estimation of the resonance frequency.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: October 30, 2012
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Hajime Fujita, Hiroaki Kawasaki
  • Patent number: 8279056
    Abstract: The invention includes: a rotation velocity information detection means for regularly detecting tire rotation velocity information regarding the respective wheels of a vehicle; a frequency characteristic estimation means for estimating a frequency characteristic of the rotation velocity information based on the rotation velocity information obtained from the rotation velocity information detection means; and a determination means for determining a decrease in the air pressure of the tire based on the estimated frequency characteristic. The frequency characteristic estimation means is configured to extract a resonance peak of the rotation velocity information by calculating a gain corresponding to an arbitrary frequency.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: October 2, 2012
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Hajime Fujita, Hiroaki Kawasaki
  • Publication number: 20120245787
    Abstract: A vehicle mass estimation apparatus includes a wheel rotation speed information detection device configured to detect rotation speed information regarding the respective wheels of the vehicle; a frequency characteristic estimation device configured to calculate wheel acceleration information based on the rotation speed information of the wheels to estimate a frequency characteristic of the wheel acceleration information; and a vehicle mass estimation device configured to estimate a vehicle mass based on the estimated frequency characteristic. The frequency characteristic estimation device calculates an integrated value of frequency gain magnitudes of the respective frequency domains of front wheels and rear wheels of the vehicle, and the vehicle mass estimation device estimates the vehicle mass based on the ratio among the respective integrated values of the front wheels and rear wheels and a relation calculated in advance between the ratio and the vehicle mass.
    Type: Application
    Filed: September 23, 2011
    Publication date: September 27, 2012
    Inventor: Hiroaki KAWASAKI