Patents by Inventor Hiroshi Watanabe

Hiroshi 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: 11933801
    Abstract: The present invention provides a transport device and a specimen analysis system including the transport device that reduce the pulsation of thrust for moving an object to be transported, reduce vibration of the object to be transported during transport, and realize stable transport. The transport device of the present invention includes a first electromagnet unit including a first tooth made of a magnetic body, a first core connected to the first tooth and made of a magnetic body, and a first winding formed around the first core; a second electromagnet unit including a second tooth installed adjacent to the first electromagnet unit and made of a magnetic body, a second core connected to the second tooth and made of a magnetic body, a second winding formed around the second core; and a magnetic coupling unit made of a magnetic body between the first tooth of the first electromagnet unit and the second tooth of the second electromagnet unit.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: March 19, 2024
    Assignee: Hitachi High-Tech Corporation
    Inventors: Yasuaki Aoyama, Ryosuke Hoshi, Satoru Kaneko, Hiroyuki Kobayashi, Takeshi Tamakoshi, Hiroshi Watanabe, Katsuhiro Kambara, Kuniaki Onizawa
  • Patent number: 11933936
    Abstract: An optical sensor includes a light source, a light receiver, and a convex portion. The light source emits light to an object. The light receiver receives reflected light of the emitted light reflected by an object and generates a signal showing a light reception result. The convex portion has a height higher than a height of the light source and the light receiver. The convex portion is between the light source and the light receiver to block reflected light from the light receiver when light from the light source is reflected within a range of a predetermined distance from the convex portion. The light receiver outputs a signal to show a light reception result of equal to or less than a threshold amount of light indicating that the reflected light is not received in response to proximity of the object being within a range of a predetermined distance.
    Type: Grant
    Filed: May 17, 2022
    Date of Patent: March 19, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Hiroshi Watanabe, Kohei Sugahara, Takatoshi Kato
  • Patent number: 11933684
    Abstract: A tactile and proximity sensor includes a light source, a light receiving section, and a cover. The light source emits light. The light receiving section receives light and generates a signal providing a result of the received light. The cover includes an elastic body that deforms under external force and that covers the light source and the light receiving section. The cover includes a reflective section that reflects light between the light source and the light receiving section and a transmission section that allows light to pass through in a first direction from the light source and that allows light to pass through in a second direction from the light receiving section.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: March 19, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Takatoshi Kato, Hiroshi Watanabe, Kohei Sugahara, Hironari Yamamoto, Hiraku Kawai
  • Publication number: 20240079982
    Abstract: A power converter apparatus comprising: a power converter that outputs signal to the magnet motor to vary the output frequency, output voltage and output current of the magnet motor, a control unit controls the power converter, wherein the control unit calculating the gain of the magnetic flux component of the q-axis, which varies with the phase of the magnet motor, calculating the d-axis induced voltage command value based on a value of the induced voltage coefficient, frequency estimates or frequency command value, and the gain of the flux component of the q-axis.
    Type: Application
    Filed: November 10, 2021
    Publication date: March 7, 2024
    Inventors: Kazuaki TOBARI, Hironori OHASHI, Hiroshi WATANABE, Masato OHYA
  • Patent number: 11921293
    Abstract: A head-mounted display comprises: a wearing body; a display; a communication module configured to perform communication connection with a mobile information terminal; a field of view (FOV) sensor configured to output status data used for determining whether the mobile information terminal is included in a user's FOV through the wearing body; and a controller connected to each of the display, the communication module, and the FOV detection sensor. The controller determines whether the mobile information terminal is included in the user's FOV based on the status data, and performs display control with respect to the display so as to display an application screen of the mobile information terminal on the display when determining that the mobile information terminal is not included in the FOV, and not to display the application screen on the display when determining that the mobile information terminal is included in the FOV.
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: March 5, 2024
    Assignee: MAXELL, LTD.
    Inventors: Mitsunobu Watanabe, Yasunobu Hashimoto, Osamu Kawamae, Nobuo Masuoka, Kazuhiko Yoshizawa, Hiroshi Shimizu
  • Patent number: 11914330
    Abstract: A timepiece including: a dial; a windshield glass having a plurality of curved surfaces that differ from each other in curvature; and a hand disposed between the dial and the windshield glass, wherein the windshield glass includes: a first curved surface having a first curvature and including a center of the windshield glass; a second curved surface disposed adjacent to the first curved surface and having a second curvature larger than the first curvature; and a third curved surface disposed adjacent to the second curved surface and having a third curvature larger than the second curvature, a thickness of the first curved surface and a thickness of the second curved surface are equal, and in plan view, a distal end of the hand is disposed on a center C side of the windshield glass with respect to a boundary between the second curved surface and the third curved surface.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: February 27, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Koki Hayashi, Kenichiro Matsumoto, Kazunori Hoshino, Hiroshi Watanabe
  • Patent number: 11912449
    Abstract: To provide an article gripping system that reduces the installation area of the apparatus and further shortens the amount of time from when it grips to when it feeds articles. An article gripping system (110) switches between a first positional relationship in which a container (50) obstructs discharge of articles gripped by a first gripping unit (15A) but does not obstruct discharge of articles by a second gripping unit (15B) and a second positional relationship in which the container (50) obstructs discharge of articles gripped by the second gripping unit (15B) but does not obstruct discharge of articles gripped by the first gripping unit (15A), so the gripping units do not move while they are holding the articles, and the articles can be prevented from falling out of the gripping units (15).
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: February 27, 2024
    Assignee: ISHIDA CO., LTD.
    Inventors: Hiroshi Okano, Shuichi Maeda, Yuki Furukawa, Masaaki Hojo, Akihito Suzuki, Kousuke Watanabe
  • Publication number: 20240053210
    Abstract: A sensor device includes a substrate, a force sensor on the substrate, and a proximity sensor including light emitting elements on the substrate and light receiving elements to receive light from the light emitting elements. At least one of the light emitting elements and the light receiving elements of the proximity sensor is located at three or more positions that surround the force sensor on the substrate. A position of a center of gravity with respect to the three or more positions is within a range in which the force sensor is positioned on the substrate.
    Type: Application
    Filed: October 20, 2023
    Publication date: February 15, 2024
    Inventors: Hiroshi WATANABE, Kohei SUGAHARA, Takatoshi KATO, Koichi INOUE
  • Publication number: 20240044671
    Abstract: A proximity sensor includes one or more detection electrodes to be capacitively coupled to an object, a contact electrode contactable with the object, an excitation circuit connected to one of the one or more detection electrodes or the contact electrode to supply an excitation voltage to the electrode to which the excitation circuit is connected, and a detection circuit connected to the other of the one or more detection electrodes or the contact electrode to generate, based on a detection voltage at the electrode connected to the detection circuit, a detection signal in response to an electrostatic capacitance between the one of the one or more detection electrodes and the object. The detection circuit generates the detection signal in response to the electrostatic capacitance. The detection signal indicates a proximity of the object in contact with the contact electrode to the one of the one or more detection electrodes.
    Type: Application
    Filed: October 23, 2023
    Publication date: February 8, 2024
    Inventors: Takatoshi KATO, Hiroshi WATANABE, Kohei SUGAHARA, Koichi INOUE
  • Patent number: 11887780
    Abstract: The present invention comprises: an object to be conveyed that has at least one permanent magnet 10; a magnetic pole 25 that has a core 22 comprising a second magnetic body and a winding 21 wound around the outer periphery of the core 22; a drive circuit 50 for supplying a current to the winding 21 of the magnetic pole 25; a current detection unit 30 for detecting the value of the current flowing through the winding 21; and a computation unit 40 for estimating the position of the permanent magnet 10 on the basis of the current value detected by the current detection unit 30 and controlling the value of the current supplied from the drive circuit 50 to the winding 21 on the basis of information about the estimated position of the permanent magnet 10.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: January 30, 2024
    Assignee: Hitachi High-Tech Corporation
    Inventors: Yasuaki Aoyama, Hiroyuki Kobayashi, Satoru Kaneko, Takeshi Tamakoshi, Ryosuke Hoshi, Katsuhiro Kambara, Hiroshi Watanabe, Kuniaki Onizawa
  • Patent number: 11889070
    Abstract: A filtered image with enhanced image quality is output. Provided is a loop filter including: a filtering processing unit configured to apply a filter to an unfiltered image; and an ALF unit configured to receive input of a DL image to which a filter is applied by a first filtering processing unit out of the filtering processing unit. The ALF unit further receives input of the unfiltered image.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: January 30, 2024
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tomohiro Ikai, Norio Itoh, Takeshi Chujoh, Yasuaki Tokumo, Hiroshi Watanabe
  • Publication number: 20240026584
    Abstract: The present invention aims to speed up of processing necessary at the time of switching between different sewing operation modes. Sewing data supply means supplies sewing data having mixed therein data indicative of different sewing operation modes. The sewing machine sews, based on the sewing data, a string-shaped material to a workpiece with different sewing operation modes mixed. A control device for the sewing machine includes a quick shift process means that controls, at a boundary between the different sewing operation modes and depending on a difference between the sewing operation modes immediately preceding and succeeding the boundary, whether to execute a process for shifting to the succeeding sewing operation mode while keeping a main shaft of the sewing machine rotating (rapid process) or to execute the process for shifting to the succeeding sewing operation mode after temporarily stopping the rotation of the main shaft (normal shift process).
    Type: Application
    Filed: September 10, 2021
    Publication date: January 25, 2024
    Inventors: Hiroshi WATANABE, Takuya OKAMOTO
  • Patent number: 11870384
    Abstract: The purpose of the present invention is to provide a speed detection method for maintaining a fine time axis resolution and a power conversion device that uses the method. This power conversion device comprises an inverter for converting DC voltage into AC voltage and supplying the same to a motor, a motor speed calculation unit for calculating the speed of the motor from output pulses obtained from an encoder connected to the motor, and a control unit for receiving the motor speed from the motor speed calculation unit and controlling the inverter. In the power conversion device, the motor speed calculation unit measures the duty cycle of the output pulses, calculates the speed using the half cycles of the output pulses if the duty cycle is within a prescribed range from 50%, and calculates the speed using the full cycles of the output pulses if the duty ratio is outside of the prescribed range from 50%.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: January 9, 2024
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Hiroshi Watanabe, Masataka Sasaki, Masahiro Hiraga, Yusuke Arao, Atsuhiko Nakamura, Hiroyuki Tomita, Kazushige Hotta, Yusaku Onuma
  • Publication number: 20240003398
    Abstract: The present invention enables a simple structure to provide an easy adjustment of damping torque to be caused by applied rotation. The rotary damper (1) is intend to limit movement of viscous fluid filled in a circular cylindrical chamber (111), thereby generating a damping torque in response to an applied rotational force. The lid (15) is the screw-on type capable of being screwed into the casing (11), and thus adjusting a clearance gap G1 between the lid (15) and each partition (115) by way of changing the screwing amount of the lid (15) into the casing (11) allows amount of viscous fluid moving through the clearance gap G1 to be adjusted, thereby resulting in adjustment of a damping torque to be caused by rotation. In addition, each axial force generation member (17) includes a plastically or elastically deformable element and is located between the lid (15) and the corresponding partition (115) to apply a reaction force to the lid (15).
    Type: Application
    Filed: September 6, 2021
    Publication date: January 4, 2024
    Inventors: Hiroshi WATANABE, Kenichi OKUMURA, Wataru NISHIOKA, Ryohei KANEKO
  • Patent number: 11851282
    Abstract: The invention provides a conveying device having a conveying performance higher than that of the related art, a sample analysis system and sample pretreatment device with the conveying device and a method for conveying a conveyance object. A conveying device 1 includes a permanent magnet 10 which is provided on a sample rack 111 side, magnetic poles 25 each of which includes a core 22 made of a second magnetic body and a winding 21 wound around an outer periphery of the core 22, drive circuits 50 each of which supplies a current to the winding 21 of the magnetic pole 25, and current command calculation units 55 each of which controls a value of the current to be supplied to the winding 21 from the drive circuit 50. The current command calculation unit 55 makes the currents to be supplied to the windings 21 vary.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: December 26, 2023
    Assignee: Hitachi High-Tech Corporation
    Inventors: Yasuaki Aoyama, Ryosuke Hoshi, Hiroyuki Kobayashi, Satoru Kaneko, Takeshi Tamakoshi, Hiroshi Watanabe, Katsuhiro Kambara, Kuniaki Onizawa
  • Publication number: 20230365354
    Abstract: An objective of the present invention is to provide a conveyance device that can increase inductance variation while suppressing the lowering of thrust. A conveyance device 1 conveys an article 110 to be conveyed. The article 110 to be conveyed can be conveyed by a magnetic force. The conveyance device 1 comprises a plurality of electromagnets 25a and 25b. Each electromagnet 25a, 25b comprises: teeth 22, 22a, 22b, 22c and 22e including a magnetic body; and windings 21, 21a and 21b wound around the teeth 22, 22a, 22b, 22c and 22e. The conveyance device 1 comprises a yoke 26 for magnetically coupling the electromagnets 25a and 25b, and driving circuits 50a and 50b for supplying current to the windings 21, 21a and 21b. The teeth 22, 22a, 22b, 22c and 22e have a cavity 27 extending in the axial direction.
    Type: Application
    Filed: August 25, 2021
    Publication date: November 16, 2023
    Inventors: Ryosuke HOSHI, Yasuaki AOYAMA, Satoru KANEKO, Hiroyuki KOBAYASHI, Hiroshi WATANABE, Shinji AZUMA, Kuniaki ONIZAWA
  • Publication number: 20230366899
    Abstract: There are provided a sample container carrier and a sample conveying device capable of reducing a frictional force generated between a container carrier and a conveying plane during conveyance of the container carrier as compared with a case in the related art. In a conveying device 700, a container carrier 100 includes: a magnetic material body 105; a grip 101 that supports a sample container 150; and a rotating body 111 that is disposed so as to be in contact with a conveying surface 120 for conveying the container carrier 100 and rotates as the container carrier 100 moves, in which the container carrier is conveyed by an electromagnetic force acting on the magnetic material body 105.
    Type: Application
    Filed: July 28, 2021
    Publication date: November 16, 2023
    Applicant: Hitachi High-Tech Corporation
    Inventors: Shinji AZUMA, Hiroshi WATANABE
  • Publication number: 20230333131
    Abstract: Provided is a conveyance device capable of reducing the weight of a conveyance device while preventing magnetic saturation. A conveyance device according to the present invention is characterized by comprising a conveyance path (65) in which a conveyed object is moved, an electromagnet provided on the surface of the conveyance path (65) opposite to the surface on which the conveyed object moves, and a drive circuit for supplying a current to the electromagnet, the electromagnet including teeth (22a, 22b) formed from a magnetic body, and windings (21a, 21b) wound onto the surface of the teeth (22a, 22b), a yoke (26) is provided that supports the teeth (22a, 22b), and the relationship between the minimum cross-sectional area Sy of the yoke (26) and the minimum cross-sectional area St of the part of the teeth (22a, 22b) where the windings (21a, 21b) are provided is Sy<St.
    Type: Application
    Filed: August 27, 2021
    Publication date: October 19, 2023
    Inventors: Ryosuke HOSHI, Yasuaki AOYAMA, Akeshi TAKAHASHI, Satoru KANEKO, Takeshi TAMAKOSHI, Hiroyuki KOBAYASHI, Hiroshi WATANABE, Kuniaki ONIZAWA
  • Publication number: 20230325350
    Abstract: A non-transitory computer readable medium with a file genealogy identification program configured to cause a computer to perform: receiving a plurality of document files each having been added to with a unique identifier each time the document file has been saved by an application program and having a set of identifiers based on the added identifiers; determining a genealogical relationship between first and second document files in the plurality of document files based on a similarity calculated by obtaining an intersection based on comparison of a first set of identifiers collected from the first document file to a second set of identifiers collected from the second document file, obtaining a union of the first set of identifiers and the second set of identifiers, and calculating the similarity based on the number of unique identifiers in the intersection and the number of unique identifiers in the union.
    Type: Application
    Filed: December 5, 2022
    Publication date: October 12, 2023
    Inventors: Yohei FUJII, Hiroshi WATANABE, Takahisa MIZUNO
  • Patent number: 11772911
    Abstract: Provided is a transport device in which reliability is increased by suppressing deterioration of the transport surface and transport efficiency is increased by suppressing electrical current loss. A transport device 1 comprising a transported body having either a permanent magnet 10 or a magnetic body, and an electromagnet unit in which coils 21 are wound around teeth 25 comprising magnetic bodies, and having recesses on surfaces of the teeth 25 facing the transported body. Specifically, the surfaces of the teeth 25 facing the transported body have at least two surfaces (first facing surface 22, second facing surface 23, etc.) which have different distances to the transported body.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: October 3, 2023
    Assignee: Hitachi High-Tech Corporation
    Inventors: Yasuaki Aoyama, Ryosuke Hoshi, Satoru Kaneko, Hiroyuki Kobayashi, Takeshi Tamakoshi, Katsuhiro Kambara, Hiroshi Watanabe, Kuniaki Onizawa