Patents by Inventor Hiroyuki Hatano

Hiroyuki Hatano 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: 11005356
    Abstract: A power control device for controlling driving of an LLC resonant converter including a first switching element to one end of which an input voltage is applied, a second switching element of which one end is connected to the other end of the first switching element, and a primary winding and a resonant capacitor connected in series between a first connection node at which the first and second switching elements are connected together and the other end of the second switching element includes an on-timing controller that detects variation of a switching voltage detection signal based on a switching voltage appearing at the first connection node rising up to the input voltage and falling down to 0 V and that, based on the result of the detection, generates a high-side on-signal for turning on the first switching element and a low-side on-signal for turning on the second switching element.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: May 11, 2021
    Assignee: Rohm Co., Ltd.
    Inventors: Hiroki Kikuchi, Hiroyuki Hatano
  • Publication number: 20200169160
    Abstract: A power control device for controlling driving of an LLC resonant converter including a first switching element to one end of which an input voltage is applied, a second switching element of which one end is connected to the other end of the first switching element, and a primary winding and a resonant capacitor connected in series between a first connection node at which the first and second switching elements are connected together and the other end of the second switching element includes an on-timing controller that detects variation of a switching voltage detection signal based on a switching voltage appearing at the first connection node rising up to the input voltage and falling down to 0 V and that, based on the result of the detection, generates a high-side on-signal for turning on the first switching element and a low-side on-signal for turning on the second switching element.
    Type: Application
    Filed: November 5, 2019
    Publication date: May 28, 2020
    Inventors: Hiroki KIKUCHI, Hiroyuki Hatano
  • Patent number: 10541621
    Abstract: An AC-DC converter 1 has, e.g.: a primary winding 11 to which an alternating-current input voltage Vi is applied; a secondary winding 12 magnetically coupled with the primary winding 11; a bidirectional switch 20 connected in series with the primary winding 11; a resonance capacitor 30 connected in parallel with at least one of the bidirectional switch 20 and the primary winding 11; a resonance inductance component (e.g., a coil 120); a full-wave rectification circuit 40 performing full-wave rectification on an induced voltage appearing in the secondary winding 12; and a smoothing capacitor 50 smoothing the output of the full-wave rectification circuit 40. The alternating-current input voltage Vi is converted directly into a direct-current output voltage Vo, with both a forward voltage and a flyback voltage extracted from the secondary winding 12. The converter 1 further has a switch 200 switching the number of turns of the primary winding.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: January 21, 2020
    Assignee: Rohm Co., Ltd.
    Inventor: Hiroyuki Hatano
  • Patent number: 10483859
    Abstract: An AC/DC converter includes a transformer including a primary winding connected to an AC power source and a secondary winding electromagnetically coupled to the primary winding, a bidirectional switch connected in series to the primary winding, a resonant capacitor connected in parallel or series to the bidirectional switch, a full-wave rectification circuit arranged to perform full-wave rectification of an induced voltage generated in the secondary winding, a smoothing capacitor arranged to smooth an output of the full-wave rectification circuit, and a control circuit arranged to turn on and off the bidirectional switch. The transformer is a leakage transformer or a resonant transformer having leakage inductance. The AC converter takes out both forward voltage and flyback voltage from the secondary winding, so as to directly convert an AC input voltage supplied from the AC power source into a DC output voltage.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: November 19, 2019
    Assignee: Rohm Co., Ltd.
    Inventor: Hiroyuki Hatano
  • Publication number: 20190081572
    Abstract: An AC-DC converter 1 has, e.g.: a primary winding 11 to which an alternating-current input voltage Vi is applied; a secondary winding 12 magnetically coupled with the primary winding 11; a bidirectional switch 20 connected in series with the primary winding 11; a resonance capacitor 30 connected in parallel with at least one of the bidirectional switch 20 and the primary winding 11; a resonance inductance component (e.g., a coil 120); a full-wave rectification circuit 40 performing full-wave rectification on an induced voltage appearing in the secondary winding 12; and a smoothing capacitor 50 smoothing the output of the full-wave rectification circuit 40. The alternating-current input voltage Vi is converted directly into a direct-current output voltage Vo, with both a forward voltage and a flyback voltage extracted from the secondary winding 12. The converter 1 further has a switch 200 switching the number of turns of the primary winding.
    Type: Application
    Filed: August 31, 2018
    Publication date: March 14, 2019
    Applicant: ROHM CO., LTD.
    Inventor: Hiroyuki Hatano
  • Patent number: 9985627
    Abstract: A drive circuit includes a control circuit configured to output a polarity signal for controlling ON/OFF of a driving switch, a pulse transformer, electrically connected to the control circuit, configured to transmit the polarity signal, and a discharge circuit, electrically connected to the pulse transformer and a gate terminal of the driving switch, configured to discharge an electric charge accumulated in the gate terminal based on the polarity signal. When the polarity signal having a first polarity is applied to the gate terminal through the pulse transformer, the driving switch is switched to and maintained in an ON state by accumulating the electric charge in the gate terminal. When the polarity signal having a second polarity different from the first polarity is applied to the discharge circuit through the pulse transformer, the driving switch is switched to an OFF state by discharging the electric charge by the discharge circuit.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: May 29, 2018
    Assignee: Rohm Co., Ltd.
    Inventors: Hiroyuki Hatano, Akeyuki Komatsu
  • Patent number: 9744890
    Abstract: A vehicle seat including a seat pad including a flow channel portion, a seat cover covering the seat pad and having breathability, a functional member disposed between the seat pad and the seat cover and having breathability, and a blowing member configured to blow the gas into or out of the seat through the flow channel portion of the seat pad and the seat cover along a flow path, wherein the functional member is integrated with any one of the seat pad and the seat cover with an adhesive portion, which has poorer breathability than the seat cover and the functional member, interposed therebetween, and wherein the adhesive portion includes a passage portion through which the gas is configured to pass, and the passage portion is disposed in the flow path of the gas.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: August 29, 2017
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Tomoki Nii, Hiroyuki Hatano
  • Publication number: 20170141689
    Abstract: An AC/DC converter includes a transformer including a primary winding connected to an AC power source and a secondary winding electromagnetically coupled to the primary winding, a bidirectional switch connected in series to the primary winding, a resonant capacitor connected in parallel or series to the bidirectional switch, a full-wave rectification circuit arranged to perform full-wave rectification of an induced voltage generated in the secondary winding, a smoothing capacitor arranged to smooth an output of the full-wave rectification circuit, and a control circuit arranged to turn on and off the bidirectional switch. The transformer is a leakage transformer or a resonant transformer having leakage inductance. The AC converter takes out both forward voltage and flyback voltage from the secondary winding, so as to directly convert an AC input voltage supplied from the AC power source into a DC output voltage.
    Type: Application
    Filed: November 8, 2016
    Publication date: May 18, 2017
    Inventor: Hiroyuki HATANO
  • Publication number: 20170005652
    Abstract: A drive circuit includes a control circuit configured to output a polarity signal for controlling ON/OFF of a driving switch, a pulse transformer, electrically connected to the control circuit, configured to transmit the polarity signal, and a discharge circuit, electrically connected to the pulse transformer and a gate terminal of the driving switch, configured to discharge an electric charge accumulated in the gate terminal based on the polarity signal. When the polarity signal having a first polarity is applied to the gate terminal through the pulse transformer, the driving switch is switched to and maintained in an ON state by accumulating the electric charge in the gate terminal. When the polarity signal having a second polarity different from the first polarity is applied to the discharge circuit through the pulse transformer, the driving switch is switched to an OFF state by discharging the electric charge by the discharge circuit.
    Type: Application
    Filed: June 30, 2016
    Publication date: January 5, 2017
    Inventors: Hiroyuki Hatano, Akeyuki Komatsu
  • Publication number: 20160107551
    Abstract: A vehicle seat including a seat pad including a flow channel portion, a seat cover covering the seat pad and having breathability, a functional member disposed between the seat pad and the seat cover and having breathability, and a blowing member configured to blow the gas into or out of the seat through the flow channel portion of the seat pad and the seat cover along a flow path, wherein the functional member is integrated with any one of the seat pad and the seat cover with an adhesive portion, which has poorer breathability than the seat cover and the functional member, interposed therebetween, and wherein the adhesive portion includes a passage portion through which the gas is configured to pass, and the passage portion is disposed in the flow path of the gas.
    Type: Application
    Filed: October 13, 2015
    Publication date: April 21, 2016
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Tomoki NII, Hiroyuki HATANO
  • Publication number: 20120170323
    Abstract: A charging AC adaptor includes: a first diode bridge connected to an AC terminal; a chopper controller connected to the first diode bridge; an insulating air core transformer connected to the chopper controller; a second diode bridge connected to a secondary side of the insulating air core transformer; a DC output terminal connected to the second diode bridge; and a common connection cable connected to the DC output terminal. The charging AC adaptor is connectable to a portable device via the common connection cable.
    Type: Application
    Filed: January 4, 2012
    Publication date: July 5, 2012
    Applicant: ROHM CO., LTD.
    Inventors: Jun IIDA, Hiroyuki HATANO, Kimitake UTSUNOMIYA
  • Publication number: 20120158884
    Abstract: A content distribution device of the present invention includes: a content holding unit that holds a plurality of distribution contents that can be distributed, the distribution content including a first content that has a first bit rate and a second content that has a second bit rate lower than the first bit rate; a cache holding unit that temporarily holds at least one of the first and second contents; a cache control unit that reads out the first or second content to be distributed from the content holding unit, and stores the read out content in the cache holding unit; and a content distribution unit that reads out and distributes the first or second content that is temporarily held in the cache holding unit, or the first or second content that is held in the content holding unit, in distribution of a specified content specified by a distribution request among the plurality of distribution contents.
    Type: Application
    Filed: August 27, 2010
    Publication date: June 21, 2012
    Applicant: NEC CORPORATION
    Inventor: Hiroyuki Hatano
  • Publication number: 20110238927
    Abstract: Solved is a problem that use efficiency of a memory cache is low because in contents distribution using a memory cache whose capacity is limited, even when only a part of contents is accessed, the entire contents will be stored in the memory cache. The contents distribution device includes a contents holding unit 102 which stores contents to be distributed, a cache holding unit 103 which temporarily stores the contents to be distributed, a contents distribution unit 100 which distributes contents stored in the cache holding unit or the contents holding unit, and a cache control unit 101 which controls storage and deletion of contents in and from the cache holding unit, in which the cache control unit 101 sections the contents into a plurality of blocks and controls storage and deletion in and from the cache holding unit on a block basis based on cache control information which sets a deletion waiting time before deletion from the cache holding unit on a block basis.
    Type: Application
    Filed: November 18, 2009
    Publication date: September 29, 2011
    Inventor: Hiroyuki Hatano
  • Publication number: 20090223292
    Abstract: Provided is a piezo-resistor type acceleration sensor in which an offset voltage does not fluctuate even when excessive impact/acceleration is applied. In the acceleration sensor, metal wires on top surfaces of a flexible portion and a weight are arranged in grooves formed on the flexible portion top surface/weight top surface. The acceleration sensor has a structure in which the metal wires do not hit an upper regulation plate even when the weight collides with the upper regulation plate, and the offset voltage fluctuation can be avoided.
    Type: Application
    Filed: September 18, 2007
    Publication date: September 10, 2009
    Applicant: Hitachi Metals, Ltd.
    Inventors: Hiroyuki Hatano, Atsushi Mieno, Masakatsu Saitoh, Yoshio Ikeda
  • Patent number: 7562575
    Abstract: An acceleration sensor, which has realized such a high impact-resistance that a weight bottom surface of an acceleration sensor element does not directly collide with an inner bottom plate of a protection case made of ceramic, glass or silicon to avoid edges and corners of the weight bottom surface of the acceleration sensor element chipping, even when an excessive acceleration or impact is applied to the acceleration sensor. The acceleration sensor comprises the acceleration sensor element having in a center a weight that works as a pendulum when acceleration is applied, and the protection case housing the acceleration sensor element. The inner bottom plate of the protection case works as a regulation plate to prevent the weight from excessively swing downwards. An impact buffer material of a metal layer or a resin layer is provided on the weight bottom surface or the inner bottom plate of the protection case.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: July 21, 2009
    Assignee: Hitachi Metals, Ltd.
    Inventors: Hiroyuki Hatano, Yoshiaki Takada, Masakatsu Saitoh
  • Publication number: 20070084343
    Abstract: A plurality of fluid feed pipes having fluid percolation walls are arranged in a container, through which solid particles move downward, and the fluid passes through the pipes so that the contacts between the solid particles and the fluid are made with a low pressure loss. A plurality of solid particle feed pipes for forming spaces enclosed by fluid percolation walls are arranged in a container, through which the fluid flows, and the solid particles move through the solid particle feed pipes so that the contacts between the solid particles and the fluid are made with a low pressure loss. A plurality of bottom-opened fluid passages and having polygonal or semicircular sections are disposed in a container, through which solid particles move downward, and the fluid passes through the fluid passages so that the contacts between the solid particles and the fluid are made with a low pressure loss.
    Type: Application
    Filed: October 13, 2006
    Publication date: April 19, 2007
    Inventor: Hiroyuki Hatano
  • Publication number: 20070028687
    Abstract: An acceleration sensor, which has realized such a high impact-resistance that a weight bottom surface of an acceleration sensor element does not directly collide with an inner bottom plate of a protection case made of ceramic, glass or silicon to avoid edges and corners of the weight bottom surface of the acceleration sensor element chipping, even when an excessive acceleration or impact is applied to the acceleration sensor. The acceleration sensor comprises the acceleration sensor element having in a center a weight that works as a pendulum when acceleration is applied, and the protection case housing the acceleration sensor element. The inner bottom plate of the protection case works as a regulation plate to prevent the weight from excessively swing downwards. An impact buffer material of a metal layer or a resin layer is provided on the weight bottom surface or the inner bottom plate of the protection case.
    Type: Application
    Filed: July 6, 2006
    Publication date: February 8, 2007
    Inventors: Hiroyuki Hatano, Yoshiaki Takada, Masakatsu Saitoh
  • Patent number: 7167073
    Abstract: A semiconductor device increases the efficiency of the inductor having a three-dimensional spiral coil and increases the inductance value without requiring any special steps. The semiconductor device includes semiconductor elements and first, second and third metal wire layers to be used for the configuration of the semiconductor elements, a core disposed on the second metal wire layer, and a coil wherein a plurality of pieces of the first metal wire layer and a plurality of pieces of the third metal wire layer connected to the pieces via the connection holes are connected in series to define a spiral surrounding the core.
    Type: Grant
    Filed: October 20, 2004
    Date of Patent: January 23, 2007
    Assignee: Rohm Co., Ltd.
    Inventor: Hiroyuki Hatano
  • Patent number: 7111514
    Abstract: An acceleration sensor comprises an acceleration sensor element having a mass portion in the center, a thick frame surrounding the mass portion and a plurality of elastic support arms bridging the mass portion and the thick frame, and an upper regulation plate covering the acceleration sensor element and fixed on the thick frame with adhesive. The mass portion has, on the mass portion upper surface, connection portions connecting the mass portion with each of the arms, wired areas having lead wires on it and non-wired areas. The non-wired areas have a major area of the upper surface of the mass portion and are lower than the wired areas. The upper regulation plate has a first gap with the wired areas and a second gap with the non-wired areas, of which length is more than the sum of the first gap length, a lead wire thickness and 0.1 ?m (preferably 1.0 ?m).
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: September 26, 2006
    Assignee: Hitachi Metals, Ltd.
    Inventors: Hiroyuki Hatano, Shinji Furuichi, Masakatsu Saitoh
  • Patent number: 7014834
    Abstract: There is provided a process of preparing hydrogen through thermochemical decomposition of water capable of supplying a mixture composed of the impalpable powders of CaO and coal directly to a main reactor. The process of preparing hydrogen through thermochemical decomposition of water, wherein coal powders are caused to react with water in the presence of CaO under a condition of temperature in a range of 600° C. to 800° C.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: March 21, 2006
    Assignees: Center for Coal Utilization, Japan, National Institute of Advanced Industrial Science and Technology
    Inventors: Shi-Ying Lin, Hiroyuki Hatano, Yoshizo Suzuki