Patents by Inventor Tatsuro Suzuki

Tatsuro Suzuki 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: 20220059264
    Abstract: A composite magnetic body includes soft magnetic metal particles and non-magnetic ceramic particles each having a particle size (D50) smaller than that of the soft magnetic metal particles.
    Type: Application
    Filed: August 20, 2021
    Publication date: February 24, 2022
    Applicant: TDK CORPORATION
    Inventors: Ryuichi WADA, Takashi SUZUKI, Yusuke NAGAI, Kaori SASAKI, Tatsuro SUZUKI
  • Patent number: 11251673
    Abstract: A motor is contained in a motor container space. A controller is contained in a controller container space. The motor container space and the controller container space are arranged in series in a direction of a rotation axis of a motor shaft, while interposing a partition wall therebetween. The motor shaft is inserted in a motor shaft through-hole of the partition wall. A magnet is disposed at an end of the motor shaft, in the controller container space. A rotation sensor is disposed in the controller container space oppositely to the magnet, for monitoring a rotational position of the motor shaft on the basis of variation in magnetic field due to rotation of the magnet. A cover made of nonmagnetic metal is disposed between the magnet and the rotation sensor so as to cover the motor shaft through-hole.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: February 15, 2022
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Tatsuro Suzuki, Masaki Kashima, Eiichiro Ito, Tatsuro Mitsuhira
  • Patent number: 10894745
    Abstract: A ferrite composition includes a main component and an accessory component. The main component includes 43.0 to 51.0 mol % of iron oxide in terms of Fe2O3, 5.0 to 15.0 mol % of copper oxide in terms of CuO, 1.0 to 24.9 mol % of zinc oxide in terms of ZnO, and a remaining part of nickel oxide. The accessory component includes 0.2 to 3.0 pts. wt. of silicon compound in terms of SiO2, 3.0 to 8.0 pts. wt. of cobalt compound in terms of Co3O4 (excluding 3.0 pts. wt.), and 0.2 to 8.0 pts. wt. of bismuth compound in terms of Bi2O3 with respect to 100 pts. wt. of the main component.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: January 19, 2021
    Assignee: TDK CORPORATION
    Inventors: Kouichi Kakuda, Ryuichi Wada, Yukio Takahashi, Hiroyuki Tanoue, Tatsuro Suzuki, Takahiro Sato, Takashi Suzuki
  • Patent number: 10839995
    Abstract: A ferrite composition includes a main component that includes more than 44.0 mol % to 50.0 mol % or less of an Fe compound, 5.5 to 14.0 mol % of a Cu compound, 4.0 to 39.0 mol % of a Zn compound, and a balance of less than 40.0 mol % of a Ni compound. The ferrite composition further includes a subcomponent that includes, with respect to 100 parts by weight of the main component, more than 3.0 parts by weight to 13.0 parts by weight or less of an Si compound, more than 2.0 parts by weight to 10.0 parts by weight or less of a Co compound, and 0.25 to 5.00 parts by weight of a Bi compound. A weight ratio of the content of the Co compound to the content of the Si compound is 0.4 to 2.9.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: November 17, 2020
    Assignee: TDK CORPORATION
    Inventors: Takeshi Shibayama, Yukio Takahashi, Tatsuro Suzuki, Hiroyuki Tanoue, Yasuhiro Ito, Takahiro Sato, Takashi Suzuki
  • Publication number: 20200243239
    Abstract: A ferrite composition includes a main component and a sub-component. The main component includes 10.0 to 38.0 mol % of a Fe compound in terms of Fe2O3, 3.0 to 11.0 mol % of a Cu compound in terms of CuO, 39.0 to 80.0 mol % (excluding 39.0 mol %) of a Zn compound in terms of ZnO, and a balance of a Ni compound. The sub-component includes 10.0 to 23.0 parts by weight of a Si compound in terms of SiO2, 0 to 3.0 parts by weight (including 0 parts by weight) of a Co compound in terms of Co3O4, and 0.1 to 3.0 parts by weight of a Bi compound in terms of Bi2O3 with respect to 100 parts by weight of the main component.
    Type: Application
    Filed: December 26, 2019
    Publication date: July 30, 2020
    Applicant: TDK CORPORATION
    Inventors: Takeshi SHIBAYAMA, Takashi SUZUKI, Takahiro SATO, Kenji KOMORITA, Tatsuro SUZUKI, Yukio TAKAHASHI, Hiroyuki TANOUE, Yasuhiro ITO
  • Publication number: 20200135375
    Abstract: A multilayer coil component includes an element body having a multilayer structure including a first element body portion formed of a ferrite element body material, and a second element body portion laminated on the first element body portion and formed of a ferrite element body material having a composition different from the ferrite element body material forming the first element body portion, a multilayer coil having an axis parallel to a lamination direction of the element body, and a stress alleviation portion provided in an inner region of the multilayer coil when viewed from the lamination direction. In the multilayer coil component, the stress alleviation portion is provided in the inner region of the multilayer coil in which a stress tends to be concentrated to alleviate the stress in the inner region of the multilayer coil, and thereby occurrence of cracking in the element body can be suppressed.
    Type: Application
    Filed: October 29, 2019
    Publication date: April 30, 2020
    Applicant: TDK CORPORATION
    Inventors: Hidekazu SATO, Takahiro SATO, Hitoshi KUDO, Takashi ENDO, Yusuke NAGAI, Tatsuro SUZUKI, Hiroko KORIKAWA, Kenji KOMORITA
  • Publication number: 20200099269
    Abstract: A motor is contained in a motor container space. A controller is contained in a controller container space. The motor container space and the controller container space are arranged in series in a direction of a rotation axis of a motor shaft, while interposing a partition wall therebetween. The motor shaft is inserted in a motor shaft through-hole of the partition wall. A magnet is disposed at an end of the motor shaft, in the controller container space. A rotation sensor is disposed in the controller container space oppositely to the magnet, for monitoring a rotational position of the motor shaft on the basis of variation in magnetic field due to rotation of the magnet. A cover made of nonmagnetic metal is disposed between the magnet and the rotation sensor so as to cover the motor shaft through-hole.
    Type: Application
    Filed: August 28, 2019
    Publication date: March 26, 2020
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Tatsuro SUZUKI, Masaki KASHIMA, Eiichiro ITO, Tatsuro MITSUHIRA
  • Publication number: 20200086910
    Abstract: A steering device includes: an offset correction value storing section to store an offset correction value including a first offset correction value and a second offset correction value, the first offset value being a current value for correcting the first sensed current signal so that a value of a vibration of the electric motor is equal to or smaller than a first predetermined value when the motor rotation speed signal is a first rotation speed, and the second offset value being a current value for correcting the first sensed current signal so that the value of the vibration of the electric motor is equal to or smaller than a second predetermined value when the motor rotation speed signal is a second rotation speed.
    Type: Application
    Filed: August 28, 2019
    Publication date: March 19, 2020
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Atsushi HIRATA, Kazuya YAMANO, Tatsuro SUZUKI, Masaki KASHIMA
  • Publication number: 20190362872
    Abstract: A ferrite composition main component includes between 44.0 to 50.0 mol % of an Fe compound in terms of Fe2O3, between 5.5 to 14.0 mol % of a Cu compound in terms of CuO, between 4.0 to 39.0 mol % of a Zn compound in terms of ZnO, and a balance less than 40.0 mol % of a Ni compound in terms of NiO, The subcomponent includes, with respect to 100 parts by weight of the main component, between 3.0 parts to 13.0 parts by weight of an Si compound in terms of SiO2, between 2.0 to 10.0 parts by weight of a Co compound in terms of Co3O4, and between 0.25 to 5.00 parts by weight of a Bi compound in terms of Bi2O3. (The content of the Co compound in terms of Co3O4)/(the content of the Si compound in terms of SiO2) in weight ratio is 0.4 to 2.9.
    Type: Application
    Filed: May 28, 2019
    Publication date: November 28, 2019
    Applicant: TDK CORPORATION
    Inventors: Takeshi SHIBAYAMA, Yukio TAKAHASHI, Tatsuro SUZUKI, Hiroyuki TANOUE, Yasuhiro ITO, Takahiro SATO, Takashi SUZUKI
  • Publication number: 20190198232
    Abstract: In a multilayer coil component, a ferrite element body includes a first element body portion and a second element body portion adjacent to each other in an axial direction of the multilayer coil, in which a dielectric constant of the second element body portion is lower than a dielectric constant of the first element body portion, and a magnetic permeability of the second element body portion is higher than a magnetic permeability of the first element body portion. The inventors newly found that the first element body portion and the second element body portion contribute to coil characteristics when a coil winding portion is provided to extend over the first element body portion and the second element body portion. In the multilayer coil component, desired coil characteristics can be obtained by adjusting proportions of the first element body portion and the second element body portion in the ferrite element body.
    Type: Application
    Filed: December 20, 2018
    Publication date: June 27, 2019
    Applicant: TDK CORPORATION
    Inventors: Takahiro SATO, Hitoshi KUDO, Takashi SUZUKI, Kouichi KAKUDA, Tatsuro SUZUKI, Hiroyuki TANOUE
  • Publication number: 20190198227
    Abstract: The inventors have newly found that, even when a composition of a first element body portion and a composition of a second element body portion are different from each other, a high bonding strength at an interface between the first element body portion and the second element body portion can be obtained when both the first element body portion and the second element body portion contain Zn2SiO4 as a constituent component. That is, when the first element body portion and the second element body portion contain Zn2SiO4, a bonding strength at the interface is improved compared to a case in which the first element body portion and the second element body portion do not contain Zn2SiO4.
    Type: Application
    Filed: December 20, 2018
    Publication date: June 27, 2019
    Applicant: TDK CORPORATION
    Inventors: Takahiro SATO, Hitoshi KUDO, Takashi SUZUKI, Kouichi KAKUDA, Tatsuro SUZUKI, Hiroyuki TANOUE
  • Patent number: 10305548
    Abstract: There is provided an information processing apparatus. A first near field communication unit performs first near field communication with a first communication object. A second near field communication unit performs second near field communication with a second communication object that is capable of being the first communication object. A setting unit receives selection of one of the first near field communication and second near field communication, and performs setting of communication. A communication controller controls the first and second near field communication units to perform the first or second near field communication that is set by the setting unit.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: May 28, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Tatsuro Suzuki, Fumiko Mitamura, Atsushi Sugiura, Nao Saita
  • Patent number: 10177819
    Abstract: Provided is an information processing apparatus, including a first near field communication unit that transmits a first wireless signal for performing first near field communication with a first communication object, a second near field communication unit that transmits a second wireless signal for performing second near field communication with a second communication object that is capable of being the first communication object, and a communication controller that controls the first and second near field communication units to perform the first or second near field communication with the first or second communication object when the first wireless signal and the second wireless signal are alternately transmitted, and existence of the first or the second communication object is continuously detected plural times through transmission of one of the first and second wireless signals.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: January 8, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Tatsuro Suzuki, Futoshi Ootaka, Miyuki Yamada, Misuzu Takahashi
  • Patent number: 10104253
    Abstract: An information processing apparatus includes a receiving unit that receives print instruction information; an authenticating unit that performs an authentication for permitting a printing process; an execution unit that executes the printing process when the authentication succeeds; a near field communication unit; a wireless communication unit that performs wireless communication that differs in a communication protocol from the near field communication; a transmitting unit that transmits identification information of the information processing apparatus to a terminal device when a connection via the near field communication is established in response to an operation of passing the terminal device over the near field communication unit; and a control unit that, when the receiving unit receives the print instruction information via the wireless communication using the identification information as a transmission destination, temporarily disables a function of the authenticating unit, and causes the execution
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: October 16, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Tatsuro Suzuki, Kenichi Hagino
  • Publication number: 20180057408
    Abstract: A ferrite composition includes a main component and an accessory component. The main component includes 43.0 to 51.0 mol % of iron oxide in terms of Fe2O3, 5.0 to 15.0 mol % of copper oxide in terms of CuO, 1.0 to 24.9 mol % of zinc oxide in terms of ZnO, and a remaining part of nickel oxide. The accessory component includes 0.2 to 3.0 pts. wt. of silicon compound in terms of SiO2, 3.0 to 8.0 pts. wt. of cobalt compound in terms of Co3O4 (excluding 3.0 pts. wt.), and 0.2 to 8.0 pts. wt. of bismuth compound in terms of Bi2O3 with respect to 100 pts. wt. of the main component.
    Type: Application
    Filed: August 16, 2017
    Publication date: March 1, 2018
    Applicant: TDK CORPORATION
    Inventors: Kouichi KAKUDA, Ryuichi WADA, Yukio TAKAHASHI, Hiroyuki TANOUE, Tatsuro SUZUKI, Takahiro SATO, Takashi SUZUKI
  • Patent number: 9873851
    Abstract: Provided are both a grease composition for an electric power steering device and an electric power steering device. The grease composition can keep a sufficiently low coefficient of friction in a sliding area between a steel and a resin over a long period, is less susceptible to being removed from the sliding area, does not cause break down of an oil film, and thus can minimize the occurrence of stick-slips. A grease composition for an electric power steering device, containing a synthetic hydrocarbon oil which exhibits a density of 0.75 to 0.95 g/cm3 at 15° C., a saturated aliphatic amide compound, boron nitride, a glycerin fatty acid partial ester, and a metal soap-based thickener; and an electric power steering device using the grease composition.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: January 23, 2018
    Assignees: JX NIPPON OIL & ENERGY CORPORATION, HITACHI AUTOMOTIVE SYSTEMS STEERING, LTD.
    Inventors: Takashi Arai, Kazumi Sakai, Yuji Shitara, Satoshi Taniuchi, Kohtaro Shiino, Tatsuro Suzuki
  • Patent number: 9866728
    Abstract: An information processing apparatus includes a first near field communication unit that transmits a first wireless signal for performing first near field communication; a second near field communication unit that transmits a second wireless signal for performing second near field communication; and a communication control unit that controls the first and second near field communication units such that the first wireless signal and the second wireless signal are alternately transmitted, identification information of a user is acquired from a terminal device via the first near field communication when connection via the first near field communication is established in response to transmitting the first wireless signal, and identification information of the information processing apparatus is transmitted to the terminal device via the second near field communication when connection via the second near field communication is established in response to transmitting the second wireless signal.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: January 9, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Tatsuro Suzuki
  • Patent number: 9779520
    Abstract: A rotation frame supports an X-ray tube and an X-ray detector to be rotatable about a rotation axis. A top plate support mechanism supports the top plate on which a sample is placed to be movable along the rotation axis. A scan controller drives the top plate support mechanism and the rotation frame so as to scan a plurality of scan areas either partially overlapping or being adjacent along the rotation axis with the X-rays. A reconstruction processor generates a plurality of volume data sets corresponding to the plurality of scan areas on the basis of the output from the X-ray detector. A boundary corrector corrects CT values of the plurality of volume data sets on the basis of CT value differences between the overlapping or adjacent portions of the plurality of volume data sets.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: October 3, 2017
    Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventor: Tatsuro Suzuki
  • Publication number: 20170272596
    Abstract: An information processing apparatus includes a receiving unit that receives print instruction information; an authenticating unit that performs an authentication for permitting a printing process; an execution unit that executes the printing process when the authentication succeeds; a near field communication unit; a wireless communication unit that performs wireless communication that differs in a communication protocol from the near field communication; a transmitting unit that transmits identification information of the information processing apparatus to a terminal device when a connection via the near field communication is established in response to an operation of passing the terminal device over the near field communication unit; and a control unit that, when the receiving unit receives the print instruction information via the wireless communication using the identification information as a transmission destination, temporarily disables a function of the authenticating unit, and causes the execution
    Type: Application
    Filed: July 6, 2016
    Publication date: September 21, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Tatsuro SUZUKI, Kenichi HAGINO
  • Publication number: 20170272608
    Abstract: There is provided a mobile terminal. A near field communication unit performs near field communication. A wireless communication unit performs wireless communication that differs in a communication protocol from the near field communication. An acquiring unit, when a connection with an image forming apparatus is established through the near field communication unit, acquires identification information of the image forming apparatus from the image forming apparatus through the near field communication unit. A print instructing unit, when the acquiring unit acquires the identification information, but print completion information is not recorded in a storage unit, transmits print instruction information to instruct printing of data to the image forming apparatus of the identification information through the wireless communication unit or the near field communication unit, and records the print completion information in the storage unit.
    Type: Application
    Filed: July 7, 2016
    Publication date: September 21, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Tatsuro SUZUKI, Satoshi OMORI