Patents by Inventor Takashi Tokuyama

Takashi Tokuyama 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: 11223249
    Abstract: An electric motor includes an armature and a mover. The armature includes an armature coil. The mover includes a plurality of pole blocks each including an iron core disposed to face the armature and a plurality of permanent magnets which surround the iron core such that a surface of the iron core, which faces the armature, is open. The plurality of permanent magnets in each pole block are disposed such that magnetic poles thereof facing the iron core are equal in polarity.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: January 11, 2022
    Assignee: Kobe Steel, Ltd.
    Inventors: Shumpei Hayashi, Takashi Tokuyama, Tsuyoshi Miyazaki
  • Publication number: 20210359559
    Abstract: An electric motor includes an armature and a mover. The armature includes an armature coil. The mover includes a plurality of pole blocks each including an iron core disposed to face the armature and a plurality of permanent magnets which surround the iron core such that a surface of the iron core, which faces the armature, is open. The plurality of permanent magnets in each pole block are disposed such that magnetic poles thereof facing the iron core are equal in polarity.
    Type: Application
    Filed: May 13, 2020
    Publication date: November 18, 2021
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Shumpei HAYASHI, Takashi TOKUYAMA, Tsuyoshi MIYAZAKI
  • Patent number: 11001481
    Abstract: An output-torque estimation unit obtains a value of a current input to a motor, from a power converter, and calculates an estimated output torque value which is an estimated value of output torque of the motor, from the obtained value of the current. A load estimation unit estimates a load value of a hanging cargo based on the estimated output torque value which is calculated by the output-torque estimation unit, a speed reduction ratio of a speed reducer, an effective radius of a winch drum, and the winding number which is set by the number setting unit.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: May 11, 2021
    Assignees: Kobe Steel, Ltd., KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Hiroaki Kawai, Takashi Hiekata, Koji Inoue, Takashi Tokuyama, Hiroshi Hashimoto, Toshiaki Shimoda, Shintaroh Sasai, Tetsuya Ogawa, Toshiro Yamashita
  • Patent number: 10914015
    Abstract: There is provided a steel cord including a steel wire and a plating layer that covers the steel wire and has Cu, Zn, and Co, wherein Cu and Zn are alloyed and a region covered with Co and a region not covered with Co are mixed on the outermost surface of the plating layer.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: February 9, 2021
    Assignees: Sumitomo Electric Tochigi Co., Ltd., Sumitomo Electric Industries, Ltd., Sumitomo Rubber Industries, Ltd., Nippon Steel Corporation
    Inventors: Tetsuya Nakajima, Kenichi Yamashita, Takashi Tokuyama, Shinei Takamura, Masumi Suzuki, Koji Fujisawa, Junichi Kodama
  • Patent number: 10632791
    Abstract: A tire having a rubber body in which a steel cord is embedded, wherein a layer composed of ZnxCoyO is formed at the interface between the steel cord and the rubber body and x+y is 5/6 or more and 1 or less.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: April 28, 2020
    Assignees: Sumitomo Electric Tochigi Co., Ltd., Sumitomo Electric Industries, Ltd., Sumitomo Rubber Industries, Ltd., Nippon Steel Corporation
    Inventors: Tetsuya Nakajima, Kenichi Yamashita, Takashi Tokuyama, Shinei Takamura, Masumi Suzuki, Koji Fujisawa
  • Publication number: 20190300339
    Abstract: An output-torque estimation unit obtains a value of a current input to a motor, from a power converter, and calculates an estimated output torque value which is an estimated value of output torque of the motor, from the obtained value of the current. A load estimation unit estimates a load value of a hanging cargo based on the estimated output torque value which is calculated by the output-torque estimation unit, a speed reduction ratio of a speed reducer, an effective radius of a winch drum, and the winding number which is set by the number setting unit.
    Type: Application
    Filed: June 5, 2017
    Publication date: October 3, 2019
    Applicants: KABUSHIKI KAISHA KOBE SEIKO SHO (Kobe Steel, Ltd.), KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Hiroaki KAWAI, Takashi HIEKATA, Koji INOUE, Takashi TOKUYAMA, Hiroshi HASHIMOTO, Toshiaki SHIMODA, Shintaroh SASAI, Tetsuya OGAWA, Toshiro YAMASHITA
  • Patent number: 10287137
    Abstract: Disclosed is a winch control apparatus for a crane, which comprises: a first compensation torque value calculation section which calculates, when a hoisting manipulation being input, based on a difference speed between a detected rotational speed and a target speed according to a manipulation amount of the hoisting manipulation, a first compensation torque value for enabling an electric motor to generate a reverse-rotation-preventing torque which is a torque in a hoisting direction and corresponding to the difference speed; and a second compensation torque value calculation section which calculates, when the hoisting manipulation being input, based on a detected load value, a second compensation torque value for enabling the electric motor to generate a load bearing torque which is a torque in the hoisting direction and necessary for bearing a load of the load value.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: May 14, 2019
    Assignees: Kobe Steel, Ltd., KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Hiroaki Kawai, Takashi Tokuyama, Toshiaki Shimoda, Koji Inoue, Tetsuya Ogawa, Shintaroh Sasai
  • Publication number: 20180304689
    Abstract: A tire having a rubber body in which a steel cord is embedded, wherein a layer composed of ZnxCoyO is formed at the interface between the steel cord and the rubber body and x+y is 5/6 or more and 1 or less.
    Type: Application
    Filed: October 13, 2016
    Publication date: October 25, 2018
    Inventors: Tetsuya Nakajima, Kenichi Yamashita, Takashi Tokuyama, Shinei Takamura, Masumi Suzuki, Koji Fujisawa
  • Publication number: 20180266000
    Abstract: There is provided a steel cord including a steel wire and a plating layer that covers the steel wire and has Cu, Zn, and Co, wherein Cu and Zn are alloyed and a region covered with Co and a region not covered with Co are mixed on the outermost surface of the plating layer.
    Type: Application
    Filed: October 13, 2016
    Publication date: September 20, 2018
    Inventors: Tetsuya Nakajima, Kenichi Yamashita, Takashi Tokuyama, Shinei Takamura, Masumi Suzuki, Koji Fujisawa, Junichi Kodama
  • Publication number: 20180229976
    Abstract: Disclosed is a winch control apparatus for a crane, which comprises: a first compensation torque value calculation section which calculates, when a hoisting manipulation being input, based on a difference speed between a detected rotational speed and a target speed according to a manipulation amount of the hoisting manipulation, a first compensation torque value for enabling an electric motor to generate a reverse-rotation-preventing torque which is a torque in a hoisting direction and corresponding to the difference speed; and a second compensation torque value calculation section which calculates, when the hoisting manipulation being input, based on a detected load value, a second compensation torque value for enabling the electric motor to generate a load bearing torque which is a torque in the hoisting direction and necessary for bearing a load of the load value.
    Type: Application
    Filed: February 6, 2018
    Publication date: August 16, 2018
    Applicants: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.), Kobelco Construction Machinery Co., Ltd.
    Inventors: Hiroaki KAWAI, Takashi TOKUYAMA, Toshiaki SHIMODA, Koji INOUE, Tetsuya OGAWA, Shintaroh SASAI
  • Patent number: 9381146
    Abstract: The present invention relates to a skin conditioner comprising the compound represented with the general formula: (wherein, the symbols are the same as those defined in the text). Examples of active ingredients of the present invention include L-arginine and ethanolamine. These active ingredients can be acquired as chemical synthesis products, or they may also be acquired in the form of natural substances. Preferable examples of natural substances include substances containing L-arginine and/or ethanolamine obtained from rice. The skin conditioner as claimed in the present invention demonstrates remarkable effectiveness as an agent for the prevention and treatment of atopic dermatitis and as a skin moisture retention agent.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: July 5, 2016
    Assignee: Kabushiki Kaisha Soken
    Inventors: Takashi Tokuyama, Megumi Jo
  • Publication number: 20110213033
    Abstract: The present invention relates to a skin conditioner comprising the compound represented with the general formula: (wherein, the symbols are the same as those defined in the text). Examples of active ingredients of the present invention include L-arginine and ethanolamine. These active ingredients can be acquired as chemical synthesis products, or they may also be acquired in the form of natural substances. Preferable examples of natural substances include substances containing L-arginine and/or ethanolamine obtained from rice. The skin conditioner as claimed in the present invention demonstrates remarkable effectiveness as an agent for the prevention and treatment of atopic dermatitis and as a skin moisture retention agent.
    Type: Application
    Filed: January 25, 2011
    Publication date: September 1, 2011
    Applicant: Kabushiki Kaisha Soken
    Inventors: Takashi TOKUYAMA, Megumi JO
  • Publication number: 20090306018
    Abstract: Moisture retention ability of skin is improved and/or skin is protected or treated for another purpose by applying thereto a composition containing at least one of the following compounds: ethanolamine, 2-methoxyethylamine, O-phosphorylethanolamine, 2-ethylaminoethanol, diethanolamine, 2-dimethylaminoethanol, choline, 2-amino-2-hydroxymethyl-1,3-propanediol, noradrenalin, phenethylamine, ethylenediamine, taurine, phosphatidylethanolamine, N-(2-hydroxyethyl)acetoamide, 2-(methylamino)ethanol, 2-anilinoethanol, 2-(benzylamino)ethanol, 3-amino-1-propanol, 2-amino-1-butanol, putrescine, DL-pyroglutamic acid and triethanolamine.
    Type: Application
    Filed: May 18, 2009
    Publication date: December 10, 2009
    Applicant: Kabushiki Kaisha Soken
    Inventors: Takashi Tokuyama, Megumi Jo
  • Patent number: 6867234
    Abstract: A fat composition for oral or enteral administration which contains eicosapentaenoic acid and/or a derivative thereof, docosahexaenoic acid and/or a derivative thereof, and a C20 or higher monoenoic acid and/or a derivative thereof and functions to diminish hexacosanoic acid; and a hexacosanoic acid depressant which comprises as active ingredients eicosapentaenoic acid and/or a derivative thereof, docosahexaenoic acid and/or a derivative thereof, and a C20 or higher monoenoic acid and/or a derivative thereof. They can be prepared by extraction from a fish oil or the like, purification, blending, etc. Based on the function of diminishing hexacosanoic acid, the composition and the depressant produce an aging-inhibitory effect on cell membranes, which is effective in the prevention and treatment of lifestyle-related diseases.
    Type: Grant
    Filed: November 15, 2001
    Date of Patent: March 15, 2005
    Assignee: Morinaga Milk Industry Co., Ltd.
    Inventors: Yasunobu Antoku, Kosuke Tsukamoto, Fumihiko Koike, Takashi Tokuyama, Hirotoshi Hayasawa, Mitsunori Takase, Kyoichi Oshida
  • Publication number: 20040180031
    Abstract: The present invention relates to a skin conditioner containing one or more kinds of ingredient selected from the group consisting of an ammonium salt and ions thereof, a compound represented by the formula (1): 1
    Type: Application
    Filed: March 23, 2004
    Publication date: September 16, 2004
    Applicant: Kabushiki Kaisha Soken
    Inventors: Takashi Tokuyama, Megumi Jo
  • Publication number: 20040156877
    Abstract: Moisture retention ability of skin is improved and/or skin is protected or treated for another purpose by applying thereto a composition containing at least one of the following compounds: ethanolamine, 2-methoxyethylamine, O-phosphorylethanolamine, 2-ethylaminoethanol, diethanolamine, 2-dimethylaminoethanol, choline, 2-amino-2-hydroxymethyl-1,3-propanediol, noradrenalin, phenethylamine, ethylenediamine, taurine, phosphatidylethanolamine, N-(2-hydroxyethyl)acetoamide, 2-(methylamino)ethanol, 2-anilinoethanol, 2-(benzylamino)ethanol, 3-amino-1-propanol, 2-amino-1-butanol, putrescine, DL-pyroglutamic acid and triethanolamine.
    Type: Application
    Filed: February 4, 2004
    Publication date: August 12, 2004
    Applicant: Kabushiki Kaisha Soken
    Inventors: Takashi Tokuyama, Megumi Jo
  • Publication number: 20040067212
    Abstract: The present invention relates to a skin conditioner comprising the compound represented by the general formula: 1
    Type: Application
    Filed: October 7, 2003
    Publication date: April 8, 2004
    Applicant: Kabushiki Kaisha Soken
    Inventors: Takashi Tokuyama, Megumi Jo
  • Publication number: 20040028691
    Abstract: A fat composition for oral or enteral administration which contains eicosapentaenoic acid and/or a derivative thereof, docosahexaenoic acid and/or a derivative thereof, and a C20 or higher monoenoic acid and/or a derivative thereof and functions to diminish hexacosanoic acid; and a hexacosanoic acid depressant which comprises as active ingredients eicosapentaenoic acid and/or a derivative thereof, docosahexaenoic acid and/or a derivative thereof, and a C20 or higher monoenoic acid and/or a derivative thereof. They can be prepared by extraction from a fish oil or the like, purification, blending, etc. Based on the function of diminishing hexacosanoic acid, the composition and the depressant produce an aging-inhibitory effect on cell membranes, which is effective in the prevention and treatment of lifestyle-related diseases.
    Type: Application
    Filed: April 29, 2003
    Publication date: February 12, 2004
    Inventors: Yasunobu Antoku, Kosuke Tsukamoto, Fumihiko Koike, Takashi Tokuyama, Hirotoshi Hayasawa, Mitsunori Takase, Kyoichi Oshida
  • Patent number: 5728384
    Abstract: Ground germinated rice or an extract of polished rice or germinated rice are effective in preventing or treating ulcers.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: March 17, 1998
    Assignee: Soken Co., Ltd.
    Inventor: Takashi Tokuyama
  • Patent number: 5182559
    Abstract: A digital-to-analog converter which is especially suitable for use in converting digital audio data into an analog signal includes a partial signal time series data generating section for dividing a unit pulse response signal into m partial signals at a predetermined time interval T before digitally and repeatedly generating each partial signal with n items of time series numerical value data, a digital data storing section for storing m items of the latest digital data generated at the predetermined time T, a digital computing section for multiplying the time series numerical value data of each partial signal by digital data stored in the storing section corresponding to the partial signal before adding the multiplication results, and a converter for converting digital numerical value data which is the output from the digital computing section into an analog.
    Type: Grant
    Filed: November 15, 1991
    Date of Patent: January 26, 1993
    Assignee: Alpine Electronics, Inc.
    Inventor: Takashi Tokuyama