Patents by Inventor Keita Watanabe

Keita Watanabe 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: 12231873
    Abstract: [Problem] To enable the desired number of channels to be listened to at a lower cost and without wasting resources. [Solution] Process multi-channel digital audio signals by coordinating between a plurality of AV amp devices 1. An operation terminal 5 assigns audio channels to be processed, to each AV amp device 1, and, on the basis of the signal processing time for each AV amp device 1, determines an output delay time for each AV amp device 1 so that the output timing for analog audio signals matches for all AV amp devices 1. Each AV amp device 1 decodes input digital audio signals into analog audio signals for audio channels assigned to that AV amp device 1 by the operation terminal 5 and delays the output of the decoded analog audio signal, by the output delay time for that AV amp device 1 determined by the operation terminal 5.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: February 18, 2025
    Assignee: D&M Holdings, Inc.
    Inventors: Keita Watanabe, Yuki Takahashi
  • Patent number: 12025049
    Abstract: The thermostat device includes a housing including a first flow inlet that receives a coolant from a radiator, a second flow inlet that receives a coolant through a bypass passage, and a flow outlet of coolant in which each coolant is mixed; a thermo-element that is accommodated in the housing and moves in an axial direction depending on a temperature of the coolant from the second flow inlet; a control valve that controls amount of the coolant introduced from the first flow inlet as the thermo-element moves; a valve seat that is formed at a tip portion of an annular protrusion formed to protrude in a moving axis direction of the thermo-element in the housing and with which the control valve is in contact in a valve-closed state; and an annular groove formed by an annular gap provided outside of the valve seat and continuous in a circumferential direction.
    Type: Grant
    Filed: February 16, 2022
    Date of Patent: July 2, 2024
    Assignee: NIPPON THERMOSTAT CO., LTD.
    Inventors: Tetsuya Nishimura, Tatsuya Takahata, Shinji Watanabe, Keita Watanabe, Takayuki Tominaga
  • Patent number: 11965454
    Abstract: A thermostat device ensures a coolant amount from a bypass passage sufficiently and excellent temperature sensitivity to the coolant temperature. The thermo-operating unit is provided with a control valve for controlling an introduced coolant amount from a first flow inlet via a radiator, corresponding to the temperature of the coolant from a second flow inlet via a bypass passage. Within the housing are provided multiple guides, which are formed extending from the second flow inlet side toward a thermo-element, are arranged intermittently around the thermo-element, and support the thermo-element slidably movable in an axial direction and coolant rectifying protrusions arranged spaced apart from the thermo-element between the guides, wherein a detoured passage for the coolant, directed from the second flow inlet side toward an outflow port, is formed by forming gaps between the guides and the coolant rectifying protrusions.
    Type: Grant
    Filed: February 16, 2022
    Date of Patent: April 23, 2024
    Assignee: NIPPON THERMOSTAT CO., LTD.
    Inventors: Tetsuya Nishimura, Tatsuya Takahata, Shinji Watanabe, Keita Watanabe, Takayuki Tominaga
  • Publication number: 20220210598
    Abstract: [Problem] To enable the desired number of channels to be listened to at a lower cost and without wasting resources. [Solution] Process multi-channel digital audio signals by coordinating between a plurality of AV amp devices 1. An operation terminal 5 assigns audio channels to be processed, to each AV amp device 1, and, on the basis of the signal processing time for each AV amp device 1, determines an output delay time for each AV amp device 1 so that the output timing for analog audio signals matches for all AV amp devices 1. Each AV amp device 1 decodes input digital audio signals into analog audio signals for audio channels assigned to that AV amp device 1 by the operation terminal 5 and delays the output of the decoded analog audio signal, by the output delay time for that AV amp device 1 determined by the operation terminal 5.
    Type: Application
    Filed: March 30, 2020
    Publication date: June 30, 2022
    Inventors: Keita Watanabe, Yuki Takahashi
  • Patent number: 11315517
    Abstract: A modulated data signal is generated so as to change such that a length of a data period indicative of a timing of writing of the gradation voltage signal to each of the pixel portions becomes a length according to a distance from the data driver to each of the pixel portions. The timing control unit writes a video data signal to a memory at a timing according to a data period of the video data signal. The timing control unit reads the video data signal from the memory at a timing according to a period as a result of correction of a data period of the modulated data signal on the basis of a difference between an average value of lengths of the data periods of the video data signals and an average value of lengths of the data periods of the modulated data signals.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: April 26, 2022
    Assignee: LAPIS SEMICONDUCTOR CO., LTD.
    Inventor: Keita Watanabe
  • Patent number: 10995693
    Abstract: An engine cooling structure includes a cylinder block including a block inner peripheral wall and a block outer peripheral wall that define a water jacket, and a spacer housed in the water jacket. The block outer peripheral wall includes a coolant inlet for introducing a coolant into the water jacket at one end in a cylinder row direction. The spacer includes a peripheral wall surrounding the block inner peripheral wall, and a dividing wall and a distribution wall provided on the peripheral wall. The dividing wall is provided along a circumferential direction of the peripheral wall and protrudes outward from the peripheral wall between a lower end and an upper end of the coolant inlet. The distribution wall includes an upper distribution wall extending upward from the dividing wall and a lower distribution wall extending downward from the dividing wall.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: May 4, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Shinji Watanabe, Tatsuya Takahata, Yoshiaki Hayamizu, Keita Watanabe, Mikimasa Kawaguchi
  • Patent number: 10934968
    Abstract: An engine cooling structure includes a cylinder block including a block inner peripheral wall that defines a water jacket and a block outer peripheral wall, a spacer housed in the water jacket, and a cooler provided outside the engine body. The spacer includes: a peripheral wall surrounding the block inner peripheral wall; and a dividing wall protruding from the peripheral wall to divide the water jacket into an upper passage and lower passages below the upper passage. A coolant introduced from a coolant inlet into the upper passage passes through an inter-bore part of the block inner peripheral wall. The coolant in the lower passages is introduced into the cooler through a coolant exit.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: March 2, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Shinji Watanabe, Tatsuya Takahata, Yoshiaki Hayamizu, Keita Watanabe, Mikimasa Kawaguchi
  • Patent number: 10862096
    Abstract: A lead material (5) for a negative electrode is made of a clad material (50) including a Cu layer (51) made of Cu or a Cu alloy and Ni layers (52, 53) each made of Ni or a Ni alloy. The Ni layers are respectively bonded to opposite surfaces of the Cu layer. The Ni layers each include a surface (52b, 53b) not bonded to the Cu layer, the surface including an oxide film (52c, 53c) with a thickness of 30 nm or less.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: December 8, 2020
    Assignee: HITACHI METALS, LTD.
    Inventors: Yoshimitsu Oda, Keita Watanabe
  • Patent number: 10738730
    Abstract: A head-side jacket through which coolant flows is formed in a cylinder head. A main circulation path and a sub circulation path through which coolant fed from a coolant pump respectively circulates are formed. The head-side jacket is separated into an exhaust-port side jacket formed around an exhaust port, and a combustion-chamber-side jacket closer to a combustion chamber than the exhaust-port-side jacket. A heat exchanger is not formed in the main circulation path including the combustion-chamber-side jacket, but is formed in the sub circulation path excluding the combustion-chamber-side jacket and including the exhaust-port-side jacket.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: August 11, 2020
    Assignee: Mazda Motor Corporation
    Inventors: Ryotaro Nishida, Tomohiro Koguchi, Mikimasa Kawaguchi, Yuichi Ayukawa, Tatsuya Takahata, Takayuki Tominaga, Shinji Watanabe, Keita Watanabe
  • Patent number: 10497923
    Abstract: A lead material for a battery includes a metal plate made of single metal, in which the hardness of a central portion is lower than the hardness of a surface layer portion.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: December 3, 2019
    Assignee: HITACHI METALS, LTD.
    Inventors: Keita Watanabe, Yoshimitsu Oda
  • Patent number: 10454089
    Abstract: This clad material for a battery negative electrode lead material is constituted of a clad material of a three-layer structure including a first layer constituted of pure Ni, a second layer constituted of pure Cu and a third layer constituted of pure Ni. The thickness of a first diffusion layer formed between the first layer and the second layer and the thickness of a second diffusion layer formed between the second layer and the third layer are at least 0.5 ?m and not more than 3.5 ?m.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: October 22, 2019
    Assignee: HITACHI METALS, LTD.
    Inventors: Yoshimitsu Oda, Keita Watanabe
  • Publication number: 20190148704
    Abstract: A lead material for a battery includes a metal plate made of single metal, in which the hardness of a central portion is lower than the hardness of a surface layer portion.
    Type: Application
    Filed: January 17, 2019
    Publication date: May 16, 2019
    Applicant: HITACHI METALS, LTD.
    Inventors: Keita Watanabe, Yoshimitsu Oda
  • Patent number: 10270079
    Abstract: A lead material for a battery includes a metal plate made of single metal, in which the hardness of a central portion is lower than the hardness of a surface layer portion.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: April 23, 2019
    Assignee: HITACHI METALS, LTD.
    Inventors: Keita Watanabe, Yoshimitsu Oda
  • Publication number: 20190040815
    Abstract: A head-side jacket through which coolant flows is formed in a cylinder head. A main circulation path and a sub circulation path through which coolant fed from a coolant pump respectively circulates are formed. The head-side jacket is separated into an exhaust-port side jacket formed around an exhaust port, and a combustion-chamber-side jacket closer to a combustion chamber than the exhaust-port-side jacket. A heat exchanger is not formed in the main circulation path including the combustion-chamber-side jacket, but is formed in the sub circulation path excluding the combustion-chamber-side jacket and including the exhaust-port-side jacket.
    Type: Application
    Filed: August 1, 2018
    Publication date: February 7, 2019
    Inventors: Ryotaro Nishida, Tomohiro Koguchi, Mikimasa Kawaguchi, Yuichi Ayukawa, Tatsuya Takahata, Takayuki Tominaga, Shinji Watanabe, Keita Watanabe
  • Patent number: 10170674
    Abstract: Provided is an LED device presenting minimal risk of bottom-surface contamination even when foreign substances such as liquids adhere thereto. The LED device has an LED die, a submount substrate on the surface of which the LED die is mounted, a frame-shaped electrode disposed along the outer circumferential part of the bottom surface of the submount substrate, and an inner-side electrode surrounded by the frame-shaped electrode and connected to the electrode of the LED die. In the LED device, the frame-shaped electrode is disposed along the entire outer circumferential part of the bottom surface. In an LED device, the bottom surface is rectangular, and the frame-shaped electrode is disposed along three sides of the bottom surface.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: January 1, 2019
    Assignees: Citizen Watch Co., Ltd., Citizen Electronics Co., Ltd.
    Inventors: Isao Miyashita, Taku Kumasaka, Keita Watanabe, Kosuke Tsuchiya
  • Patent number: 10121602
    Abstract: This metal substrate for a dye-sensitized solar cell includes a clad material including a nonporous first metal layer, arranged on an anode side of a dye-sensitized solar cell element, made of a metal having corrosion resistance against an electrolyte of the dye-sensitized solar cell element and a second metal layer made of a metal having lower electrical resistance than the first metal layer and bonded to a side of the first metal layer opposite to the dye-sensitized solar cell element.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: November 6, 2018
    Assignee: HITACHI METALS, LTD.
    Inventors: Ryouji Inoue, Shinji Yamamoto, Keita Watanabe, Masaaki Ishio
  • Patent number: 9750477
    Abstract: A measurement area selection circuit has an irradiation field determination unit, an object area determination unit, and a measurement area determination unit. The irradiation field determination unit determines an irradiation field of an imaging surface of an FPD. The object area determination unit determines an object area from a comparison result between a first expected received dose of a directly exposed area and dose detection signals of detection pixels situated in the irradiation field. The measurement area determination unit determines a measurement area, which corresponds to a region of interest, from a comparison result between a second expected received dose of the measurement area and the dose detection signals of the detection pixels situated in the irradiation area and the object area. The dose detection signals of the detection pixels situated in the measurement area are used for AEC.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: September 5, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Yusuke Kitagawa, Takashi Tajima, Keita Watanabe, Takeshi Kamiya
  • Patent number: 9678226
    Abstract: A flat panel detector (FPD) includes an imaging panel having pixels arranged in a matrix, a gate driver for turning thin film transistors (TFTs) of the pixels ON and OFF, a radiation detecting section for detecting the start of x-ray radiation from the x-ray source, and a controller. The controller controls the gate driver to turn the TFTs ON periodically to reset dark charges of the pixels. Before starting a charge accumulating operation for accumulating signal charges for imaging, the controller controls the gate driver to turn the TFTs OFF so that the radiation detecting section may detect the start of x-ray radiation on the basis of charge leaks from the pixels. When the start of x-ray radiation is detected, the controller starts the charge accumulating operation while keeping the TFTs in the OFF condition. Thereafter, the TFTs are turned ON to read out the accumulated signal charges.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: June 13, 2017
    Assignee: FUJIFILM Corporation
    Inventor: Keita Watanabe
  • Publication number: 20170077481
    Abstract: A lead material for a battery includes a metal plate made of single metal, in which the hardness of a central portion is lower than the hardness of a surface layer portion.
    Type: Application
    Filed: August 26, 2016
    Publication date: March 16, 2017
    Applicants: Hitachi Metals Neomaterial, Ltd., HITACHI METALS, LTD.
    Inventors: Keita Watanabe, Yoshimitsu Oda
  • Publication number: 20160308198
    Abstract: This clad material for a battery negative electrode lead material is constituted of a clad material of a three-layer structure including a first layer constituted of pure Ni, a second layer constituted of pure Cu and a third layer constituted of pure Ni. The thickness of a first diffusion layer formed between the first layer and the second layer and the thickness of a second diffusion layer formed between the second layer and the third layer are at least 0.5 ?m and not more than 3.5 ?m.
    Type: Application
    Filed: April 13, 2016
    Publication date: October 20, 2016
    Applicant: HITACHI METALS, LTD.
    Inventors: Yoshimitsu Oda, Keita Watanabe