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).
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Patent number: 11965454Abstract: 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: GrantFiled: February 16, 2022Date of Patent: April 23, 2024Assignee: NIPPON THERMOSTAT CO., LTD.Inventors: Tetsuya Nishimura, Tatsuya Takahata, Shinji Watanabe, Keita Watanabe, Takayuki Tominaga
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Publication number: 20240123654Abstract: Provided is a separation and recovery apparatus for continuously separating and recovering, from a resin mixture containing a resin containing a hydrolyzable polymer and a resin containing a nonhydrolyzable polymer, a hydrolytic component a of the hydrolyzable polymer A and the nonhydrolyzable polymer B, the apparatus including: a crushing unit that crushes the resin mixture a melting/discharging unit that melts a crushed product obtained by the crushing unit to form a fluid and discharges the fluid at a high pressure; and a hydrothermal reaction treatment unit that continuously subjects the fluid discharged from the melting/discharging unit to a hydrothermal reaction treatment, wherein, in the melting/discharging unit, the hydrolyzable polymer A is hydrolyzed, and the hydrolytic component a thereof is dissolved and transferred into water permeating a sintered alloy diaphragm, thereby separating the nonhydrolyzable polymer B.Type: ApplicationFiled: December 15, 2023Publication date: April 18, 2024Applicant: TOPPAN INC.Inventors: Masaru WATANABE, Aritomo YAMAGUCHI, Osamu SATO, Yuuma IRISA, Akira TAKAMA, Kousuke NISHIMURA, Hiroki KUJIRAOKA, Hideki MIYAZAKI, Keita AKIMOTO, Takuya TAKAHATA, Daisuke KUGIMOTO, Shingo KOUDA, Satoshi HAMURA, Takahiro IMAI, Yumiko OMORI, Manabu KAWA
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Publication number: 20240093630Abstract: 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: ApplicationFiled: February 16, 2022Publication date: March 21, 2024Inventors: Tetsuya NISHIMURA, Tatsuya TAKAHATA, Shinji WATANABE, Keita WATANABE, Takayuki TOMINAGA
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Publication number: 20240093632Abstract: 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: ApplicationFiled: February 16, 2022Publication date: March 21, 2024Inventors: Tetsuya NISHIMURA, Tatsuya TAKAHATA, Shinji WATANABE, Keita WATANABE, Takayuki TOMINAGA
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Publication number: 20240093631Abstract: A thermostat device is provided that smoothens the flow of the coolant to keep the pressure loss small and can sufficiently secure the flow rate of the coolant from the radiator side to the engine side. A housing having a first inlet for introducing a coolant cooled by a radiator and a coolant outlet supplied to the internal combustion engine, a thermo-element accommodated in the housing that moves axially depending on the temperature of the coolant, a control valve that controls the amount of coolant introduced from the first inlet as the thermoelement moves in the axial direction, and a slope having an upward slope from the outlet side to the valve seat side inside the exit-side conduit extending from the valve seat in the housing, wherein the control valve is in contact with in the valve-closed state, toward the flow outlet of the coolant, are provided.Type: ApplicationFiled: February 16, 2022Publication date: March 21, 2024Inventors: Tetsuya NISHIMURA, Tatsuya TAKAHATA, Shinji WATANABE, Keita WATANABE, Takayuki TOMINAGA
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Publication number: 20240083180Abstract: A printing apparatus includes at least a tank configured to hold a first printing material at a first position and a tank configured to hold a second printing material at a second position different from the first position. A light emitting control unit controls light emitting states of a plurality of light emitters. If an amount of the printing material in the first tank is less than a predetermined amount, and an amount of the printing material in the second tank is greater than a predetermined amount, the light emitting control unit transits a state of a first light emitter from a state indicating that the amount of the printing material is greater than the predetermined amount to a state indicating that the amount of the printing material is less than the predetermined amount, and maintains a state of a second light emitter.Type: ApplicationFiled: November 9, 2023Publication date: March 14, 2024Inventors: Kazuhiro Watanabe, Keita Takatani, Takeshi Nakata
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Publication number: 20220210598Abstract: [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: ApplicationFiled: March 30, 2020Publication date: June 30, 2022Inventors: Keita Watanabe, Yuki Takahashi
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Patent number: 11315517Abstract: 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: GrantFiled: July 7, 2020Date of Patent: April 26, 2022Assignee: LAPIS SEMICONDUCTOR CO., LTD.Inventor: Keita Watanabe
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Patent number: 10995693Abstract: 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: GrantFiled: January 9, 2020Date of Patent: May 4, 2021Assignee: Mazda Motor CorporationInventors: Shinji Watanabe, Tatsuya Takahata, Yoshiaki Hayamizu, Keita Watanabe, Mikimasa Kawaguchi
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Patent number: 10934968Abstract: 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: GrantFiled: January 9, 2020Date of Patent: March 2, 2021Assignee: Mazda Motor CorporationInventors: Shinji Watanabe, Tatsuya Takahata, Yoshiaki Hayamizu, Keita Watanabe, Mikimasa Kawaguchi
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Publication number: 20210012741Abstract: 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: ApplicationFiled: July 7, 2020Publication date: January 14, 2021Inventor: KEITA WATANABE
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Patent number: 10862096Abstract: 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: GrantFiled: December 22, 2017Date of Patent: December 8, 2020Assignee: HITACHI METALS, LTD.Inventors: Yoshimitsu Oda, Keita Watanabe
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Patent number: 10738730Abstract: 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: GrantFiled: August 1, 2018Date of Patent: August 11, 2020Assignee: Mazda Motor CorporationInventors: Ryotaro Nishida, Tomohiro Koguchi, Mikimasa Kawaguchi, Yuichi Ayukawa, Tatsuya Takahata, Takayuki Tominaga, Shinji Watanabe, Keita Watanabe
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Publication number: 20200232413Abstract: 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: ApplicationFiled: January 9, 2020Publication date: July 23, 2020Inventors: Shinji WATANABE, Tatsuya TAKAHATA, Yoshiaki HAYAMIZU, Keita WATANABE, Mikimasa KAWAGUCHI
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Publication number: 20200232412Abstract: 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: ApplicationFiled: January 9, 2020Publication date: July 23, 2020Inventors: Shinji WATANABE, Tatsuya TAKAHATA, Yoshiaki HAYAMIZU, Keita WATANABE, Mikimasa KAWAGUCHI
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Publication number: 20200185688Abstract: 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: ApplicationFiled: December 22, 2017Publication date: June 11, 2020Applicant: Hitachi Metals, Ltd.Inventors: Yoshimitsu ODA, Keita WATANABE
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Patent number: 10497923Abstract: 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: GrantFiled: January 17, 2019Date of Patent: December 3, 2019Assignee: HITACHI METALS, LTD.Inventors: Keita Watanabe, Yoshimitsu Oda
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Patent number: 10454089Abstract: 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: GrantFiled: April 13, 2016Date of Patent: October 22, 2019Assignee: HITACHI METALS, LTD.Inventors: Yoshimitsu Oda, Keita Watanabe
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Publication number: 20190148704Abstract: 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: ApplicationFiled: January 17, 2019Publication date: May 16, 2019Applicant: HITACHI METALS, LTD.Inventors: Keita Watanabe, Yoshimitsu Oda
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Patent number: 10270079Abstract: 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: GrantFiled: August 26, 2016Date of Patent: April 23, 2019Assignee: HITACHI METALS, LTD.Inventors: Keita Watanabe, Yoshimitsu Oda