Patents by Inventor Wataru Takahashi

Wataru Takahashi 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).

  • CAPACITY CONTROL VALVE
    Publication number: 20210033082
    Abstract: A capacity control valve includes: a valve housing having a Pc port, a Ps port and a Pd port; a main valve element which includes a main valve portion coming contacting and separating from a main valve seat opening and closing communication between the Pd port and the Pc port by a drive force of a solenoid; an intermediate communication path communicating the Pc port with the Ps port; and a pressure-sensitive valve opening and closing the intermediate communication path by an ambient pressure, in which the valve housing have a differential pressure valve housed therein, the differential pressure valve including a differential pressure valve element and opening and closing a communication between the Pc port and the Ps port by the differential pressure valve element moved by an operation force of an operation member operated by a discharge pressure Pd from the Pd port.
    Type: Application
    Filed: February 14, 2019
    Publication date: February 4, 2021
    Inventors: Masahiro HAYAMA, Yoshihiro OGAWA, Keigo SHIRAFUJI, Kohei FUKUDOME, Takahiro EJIMA, Daichi KURIHARA, Wataru TAKAHASHI
  • Cell Image Analysis Apparatus, Cell Image Analysis System, Method of Generating Training Data, Method of Generating Trained Model, Training Data Generation Program, and Method of Producing Training Data
    Publication number: 20210019499
    Abstract: A cell image analysis apparatus that can achieve less time and effort for labeling for generation of teaching data than in a conventional example is provided. The cell image analysis apparatus includes an image obtaining unit that obtains a cell image including a removal target that is obtained by a microscope for observation of a cell, a teaching data generator that specifies a removal target region including the removal target within the cell image by performing predetermined image processing and generates as teaching data for machine learning, a label image that represents a location of the removal target region in the cell image, and a training data set generator that generates a set of the cell image and the label image as a training data set to be used in machine learning.
    Type: Application
    Filed: March 20, 2018
    Publication date: January 21, 2021
    Inventor: Wataru TAKAHASHI
  • FOLDING APPARATUS AND IMAGE FORMING SYSTEM INCORPORATING SAME
    Publication number: 20200407187
    Abstract: An embodiment of this disclosure provides a folding apparatus configured to stack and fold a designated number of sheets at a time. The folding apparatus includes a conveyor configured to sequentially convey the designated number of sheets, a stacker configured to temporarily store a sheet conveyed by the conveyor to stack the designated number of sheets, a sheet folding device configured to fold the designated number of sheets at a time, and control circuitry. The control circuitry is configured to cause the sheet folding device to fold the stored sheet in response to an occurrence of a sheet jam upstream from the stacker in a direction of sheet conveyance, in processing the designated number of sheets.
    Type: Application
    Filed: June 2, 2020
    Publication date: December 31, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Makoto HIDAKA, Takahiro WATANABE, Tomohiro FURUHASHI, Michitaka SUZUKI, Fumiharu YONEYAMA, Kazuyoshi MATSUO, Koki SAKANO, Akira KUNIEDA, Takuya MORINAGA, Yohsuke HARAGUCHI, Wataru TAKAHASHI
  • CAPACITY CONTROL VALVE
    Publication number: 20200400134
    Abstract: A capacity control valve for controlling a capacity of a fluid includes: a valve housing; a main valve closing and opening a communication between a Pc port and a Pd port when a main valve portion of a main valve element driven by a drive force of a solenoid comes into contact with and separates from a main valve seat; a pressure-sensitive valve which is opened by an ambient pressure; a hollow tube member which forms a part of the pressure-sensitive valve and allows the Pc port to communicate with a Ps port through a hollow communication path formed therein when the pressure-sensitive valve is opened; and an auxiliary communication path which allows the Pc port to communicate with the Ps port independently of the pressure-sensitive valve, in which the auxiliary communication path is configured to be able to increase a flow path cross-sectional area after the main valve is closed.
    Type: Application
    Filed: February 26, 2019
    Publication date: December 24, 2020
    Inventors: Daichi KURIHARA, Yoshihiro OGAWA, Keigo SHIRAFUJI, Kohei FUKUDOME, Masahiro HAYAMA, Takahiro EJIMA, Wataru TAKAHASHI
  • SHEET FOLDING APPARATUS AND IMAGE FORMING SYSTEM INCORPORATING SAME
    Publication number: 20200385231
    Abstract: A sheet folding apparatus includes a conveyance member to convey a sheet from an ejection member at a first speed lower than a conveyance speed by the ejection member or a second speed substantially same as or higher than the conveyance speed; a registration member; a pair of first and second rollers to rotate in forward and reverse directions; a plurality of folding rollers downstream from the second roller, to rotate in forward and reverse directions to fold the sheet; and circuitry to determine whether the sheet is equal to or smaller than a reference length from an exit position from the ejection member to a folding start position downstream from the pair of the first and second rollers. The circuitry performs first-speed folding when the sheet is equal to or smaller than the reference length and performs second-speed folding when the sheet is longer than the reference length.
    Type: Application
    Filed: May 22, 2020
    Publication date: December 10, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Akira KUNIEDA, Tomohiro FURUHASHI, Michitaka SUZUKI, Wataru TAKAHASHI, Fumiharu YONEYAMA, Kazuyoshi MATSUO, Makoto HIDAKA, Takahiro WATANABE, Takuya MORINAGA, Yohsuke HARAGUCHI
  • Sheet separation device, laminator, image forming apparatus, and image forming system
    Patent number: 10857776
    Abstract: A sheet separation device separates a two-ply sheet in which two sheets are bonded together at a portion. The sheet separation device includes a rotator, a nipping member opposite the rotator, to nip the two-ply sheet with the rotator, a conveyor to convey the two-ply sheet between the rotator and the nipping member, a winding member adjacent to the rotator, to wind the two-ply sheet around the rotator, and control circuitry. In winding the two-ply sheet, the control circuitry rotates the rotator at a first speed faster than a second speed at which the two-ply sheet moves to the rotator via the conveyor, and creates a difference in winding circumferential length between the two sheets, thereby separating the two sheets. The conveyor conveys the two-ply sheet with a bonded portion of the two-ply sheet being an upstream end or a downstream end in a conveyance direction of the two-ply sheet.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: December 8, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Takuya Morinaga, Tomohiro Furuhashi, Michitaka Suzuki, Fumiharu Yoneyama, Tomomichi Hoshino, Wataru Takahashi, Koki Sakano, Akira Kunieda, Yohsuke Haraguchi, Makoto Hidaka, Kazuyoshi Matsuo, Takahiro Watanabe
  • Radiographic imaging apparatus
    Patent number: 10856825
    Abstract: [Purpose] To provide a radiographic imaging apparatus capable of quickly acquiring three-dimensional image data of a target-of-interest when performing an operative procedure such as interventional treatment [Solving Means] A region-of-interest extraction unit 39 extracts a predetermined region as a region-of-interest from each of a series of two-dimensional images. The reconstruction unit 41 reconstructs a three-dimensional image of a region including a stent based on each of the images of the portion corresponding to the region-of-interest. That is, since the reconstruction unit 41 reconstructs each of a series of two-dimensional images P using an image of the region-of-interest corresponding to a part of the whole, the time required to reconstruct the three-dimensional image of the region including the stent can be shortened.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: December 8, 2020
    Assignee: Shimadzu Corporation
    Inventors: Michel Dargis, Wataru Takahashi, Keiichi Goto
  • CAPACITY CONTROL VALVE AND CONTROL METHOD FOR CAPACITY CONTROL VALVE
    Publication number: 20200362974
    Abstract: A capacity control valve, which can efficiently discharge a liquid refrigerant and reduce the driving force of a compressor, includes: a valve main body (10) including a first communication passage (11), a second communication passage (12), a third communication passage (13) and a main valve seat (15a); a valve body (20) including an intermediate communication passage (29), a main valve part (21c) and an auxiliary valve part (23d); a solenoid (30) which drives a rod (36) having an auxiliary valve seat (26c); a first biasing member (43) which biases the main valve part (21c) in the valve closing direction thereof; and a second biasing member (37) which biases the main valve part (21c) in the valve opening direction thereof, and the rod (36) relatively moves to the valve body (20), and opens and closes the auxiliary valve part (23d).
    Type: Application
    Filed: November 28, 2018
    Publication date: November 19, 2020
    Inventors: Masahiro HAYAMA, Yoshihiro OGAWA, Keigo SHIRAFUJI, Kohei FUKUDOME, Daichi KURIHARA, Wataru TAKAHASHI
  • CAPACITY CONTROL VALVE
    Publication number: 20200355282
    Abstract: A capacity control valve V includes a valve housing provided with a Pc port, a Pd port and a Ps port; a main valve body that includes a main valve portion which comes into contact with and separates from a main valve seat 10a to close and open a communication between a Pd port and the Pc port using a driving force of a solenoid; a pressure-sensitive valve capable of opening and closing, depending on a surrounding pressure, a first communication passage through which the Pc port and the Ps port are communicable with each other; and a differential pressure valve capable of opening and closing, depending on a pressure difference, a second communication passage through which the Pc port and the Ps port are communicable with each other.
    Type: Application
    Filed: January 24, 2019
    Publication date: November 12, 2020
    Inventors: Masahiro HAYAMA, Yoshihiro OGAWA, Keigo SHIRAFUJI, Kohei FUKUDOME, Takahiro EJIMA, Daichi KURIHARA, Wataru TAKAHASHI
  • CAPACITY CONTROL VALVE
    Publication number: 20200355175
    Abstract: A capacity control valve (1) includes a valve main body (10) having a first communication passage (11), a second communication passage (12), a third communication passage (13), and a main valve seat (15a), a pressure-sensitive body (24), a valve element (20) having an intermediate communication passage (29), a main valve portion (21c), and a restrictor portion (25), and a solenoid (30) that drives a rod (36). The rod (36) is relatively moved with respect to the valve element (20) so as to control an opening degree of the restrictor portion (25). The capacity control valve is capable of efficiently discharging a liquid coolant irrespective of pressure of a suction chamber and improving control stability.
    Type: Application
    Filed: January 21, 2019
    Publication date: November 12, 2020
    Inventors: Masahiro HAYAMA, Yoshihiro OGAWA, Keigo SHIRAFUJI, Kohei FUKUDOME, Takahiro EJIMA, Daichi KURIHARA, Wataru TAKAHASHI
  • SHEET SEPARATION DEVICE, LAMINATOR, IMAGE FORMING APPARATUS, AND IMAGE FORMING SYSTEM
    Publication number: 20200341414
    Abstract: A sheet separation device configured to separate a two-ply sheet, in which two sheets are bonded together at a portion, includes a rotator, a nipping member disposed opposite the rotator and configured to nip the two-ply sheet with the rotator, a conveyor configured to convey the two-ply sheet between the rotator and the nipping member, and a winding member disposed adjacent to the rotator. The conveyor conveys the two-ply sheet with a bonded portion of the two-ply sheet being an upstream end or a downstream end of the two-ply sheet in a conveyance direction of the two-ply sheet. The winding member winds the two-ply sheet around the rotator, to create a difference in winding circumferential length between the two sheets and separate the two sheets. The sheet separation device further includes control circuitry configured to adjust a winding amount of the two-ply sheet around the rotator.
    Type: Application
    Filed: April 8, 2020
    Publication date: October 29, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Takahiro WATANABE, Tomohiro FURUHASHI, Michitaka SUZUKI, Tomomichi HOSHINO, Wataru TAKAHASHI, Fumiharu YONEYAMA, Kazuyoshi MATSUO, Makoto HIDAKA, Koki SAKANO, Akira KUNIEDA, Takuya MORINAGA, Yohsuke HARAGUCHI
  • LIQUID DISCHARGE HEAD AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20200342948
    Abstract: A liquid discharge head having an element board including an element configured to discharge a liquid includes a first storage element and a second storage element. The first storage element is a fuse element or an anti-fuse element. The second storage element is a semiconductor memory capable of holding a larger capacity than the first storage element. The second storage element is provided on an area other than the element board.
    Type: Application
    Filed: April 14, 2020
    Publication date: October 29, 2020
    Inventors: Hiroshi Yamada, Kenta Udagawa, Wataru Takahashi, Norihiro Ikebe
  • SHEET SEPARATION DEVICE, LAMINATOR, IMAGE FORMING APPARATUS, AND IMAGE FORMING SYSTEM
    Publication number: 20200338877
    Abstract: A sheet separation device includes a rotator, a nipping member to nip the two-ply sheet with the rotator, a first conveyor to convey the two-ply sheet in a first direction toward the rotator and a second direction reverse thereto, a winding member to wind the two-ply sheet around the rotator, a second conveyor to convey a sheet medium in the second direction, a separation claw to move in a width direction; a sheet guide to guide the separated two sheets to different passages; and control circuitry. The first conveyor conveys the two-ply sheet to the rotator with a bonded portion at an upstream end. The control circuitry inserts the separation claw into a space between the two sheets, adjusts a projection amount of the two-ply sheet from a nip of the first conveyor in the second direction, and inserts the sheet medium in two-ply sheet adjusted in the projection amount.
    Type: Application
    Filed: April 8, 2020
    Publication date: October 29, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Wataru TAKAHASHI, Tomohiro FURUHASHI, Michitaka SUZUKI, Tomomichi HOSHINO, Fumiharu YONEYAMA, Kazuyoshi MATSUO, Makoto HIDAKA, Koki SAKANO, Akira KUNIEDA, Takahiro WATANABE, Takuya MORINAGA, Yohsuke HARAGUCHI
  • LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS
    Publication number: 20200338890
    Abstract: A liquid ejecting head includes a flow path substrate configuring a side face of a pressure chamber in communication with a nozzle through which a liquid is ejected, a diaphragm including a first face joined to the flow path substrate and a second face on an opposite side of the diaphragm to the first face, and a drive device provided on the second face and configured to change pressure in the pressure chamber. A corner of the side face of the pressure chamber includes a curved face having a center of curvature positioned in the pressure chamber in plan view, a recess is formed in the first face, and the pressure chamber is positioned inside the recess in plan view.
    Type: Application
    Filed: April 22, 2020
    Publication date: October 29, 2020
    Inventors: Wataru TAKAHASHI, Hiroaki OKUI
  • CAPACITY CONTROL VALVE AND METHOD FOR CONTROLLING SAME
    Publication number: 20200332786
    Abstract: A capacity control valve (1) includes a valve main body (10) having a first communication passage (11), a second communication passage (12), a third communication passage (13), and a main valve seat (15a), a valve element (20) having an intermediate communication passage (29), a main valve portion (21c), and an auxiliary valve portion (23d), a solenoid (30) that drives a rod (36) having an auxiliary valve seat (26c), and a first biasing member (43) that biases in the valve closing direction of the main valve portion (21c). A spring constant of the first biasing member (43) has a characteristic that the spring constant is increased in an opened state of the main valve portion (21c) and decreased in a closed state. The capacity control valve can efficiently discharge a liquid coolant and lower drive force of a compressor at a liquid coolant discharging operation.
    Type: Application
    Filed: December 26, 2018
    Publication date: October 22, 2020
    Inventors: Masahiro HAYAMA, Yoshihiro OGAWA, Keigo SHIRAFUJI, Kohei FUKUDOME, Takahiro EJIMA, Daichi KURIHARA, Wataru TAKAHASHI
  • Stack limiting unit for sheet processing device
    Patent number: 10807827
    Abstract: A sheet processing device is for binding sheets together. The sheet processing device includes binding units differing from each other in maximum sheet count, the maximum sheet count being a maximum number of sheets that can be bound at a time; a sheet tray configured to hold sheets until all to-be-bound sheets are placed therein, the number of the to-be-bound sheets being a largest one of the maximum sheet counts of the binding units or smaller; and a stacked-sheet-count limiting unit situated in a thickness direction of the sheets held in the sheet tray. The stacked-sheet-count limiting unit is configured to limit the number of sheets held in the sheet tray by varying a distance from a sheet support surface of the sheet tray on which the sheets are placed, depending on one of the binding units by which the sheets held in the sheet tray are to be bound.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: October 20, 2020
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Wataru Takahashi, Katsuhiro Kosuge, Nobuyoshi Suzuki, Hidehiko Fujiwara, Yuusuke Shibasaki, Koki Sakano, Takuya Morinaga
  • CAPACITY CONTROL VALVE
    Publication number: 20200325881
    Abstract: A capacity control valve includes a valve housing having a main valve seat portion formed on an inner peripheral surface, a main valve body that has a main valve portion capable of seating on the main valve seat portion and capable of blocking communication between a discharge port and a control port depending on a driving force of a solenoid, a relief valve that is opened by pressure, a first flow channel that allows the control port and a suction port to communicate with each other when the relief valve is opened. A second flow channel formed at least partially in parallel with the first flow channel allows the control port and the suction port to communicate with each other. A spool valve body is reciprocally disposed in a sleeve and capable of adjusting an opening of the second flow channel depending on the driving force of the solenoid.
    Type: Application
    Filed: December 21, 2018
    Publication date: October 15, 2020
    Inventors: Masahiro HAYAMA, Yoshihiro OGAWA, Keigo SHIRAFUJI, Kohei FUKUDOME, Takahiro EJIMA, Daichi KURIHARA, Wataru TAKAHASHI
  • CAPACITY CONTROL VALVE AND METHOD FOR CONTROLLING SAME
    Publication number: 20200318624
    Abstract: A capacity control valve (1) includes a valve main body (10) having a first communication passage (11), a second communication passage (12), a third communication passage (13), and a main valve seat (15a), a valve element (20) having an intermediate communication passage (29), a main valve portion (21c), and an auxiliary valve portion (23d), a solenoid (30) that drives a rod (36) having an auxiliary valve seat (26c), and a first biasing member (43) that biases in the valve closing direction of the main valve portion (21c). The rod (36) is relatively moved with respect to the valve element (20) so as to open and close the auxiliary valve portion. The capacity control valve can efficiently discharge a liquid coolant irrespective of pressure of a suction chamber and lower drive force of a compressor at a liquid coolant discharging operation.
    Type: Application
    Filed: December 26, 2018
    Publication date: October 8, 2020
    Inventors: Masahiro HAYAMA, Yoshihiro OGAWA, Keigo SHIRAFUJI, Kohei FUKUDOME, Takahiro EJIMA, Daichi KURIHARA, Wataru TAKAHASHI
  • Controller for dental equipment
    Patent number: D908887
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: January 26, 2021
    Assignee: Nakanishi Inc.
    Inventor: Wataru Takahashi
  • Controller for dental equipment
    Patent number: D908888
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: January 26, 2021
    Assignee: Nakanishi Inc.
    Inventor: Wataru Takahashi