Patents Assigned to CKD Corporation
  • Patent number: 12291368
    Abstract: An inspection device includes: X-ray irradiators that irradiates, with a predetermined X-ray from a first film-side, inspection ranges that respectively correspond to positions of packaging sheets to be separated from the packaging film; an imaging device that is disposed on a second film-side and opposed to the X-ray irradiators across the packaging film, that comprises an X-ray detector comprising detection elements arrayed along the film width direction and detecting the X-ray transmitted through the packaging film, and that successively outputs X-ray transmission image data obtained every time the packaging film is conveyed by a predetermined amount; and a controller that inspects the packaging sheet based on the X-ray transmission image data obtained by the imaging device.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: May 6, 2025
    Assignee: CKD CORPORATION
    Inventors: Takamasa Ohtani, Tsuyoshi Ohyama, Norihiko Sakaida
  • Patent number: 12280346
    Abstract: A micromixer includes: a first channel plate where a first channel and a plurality of first branch channels are each formed by a non-through groove in a front surface, and a first confluence channel is formed by a non-through groove in a rear surface, and includes a first communication channel that communicates the first branch channels with the first confluence channel; a first lid plate that covers the front surface; a second channel plate where a second confluence channel is formed by a non-through groove in the front surface, and a second channel and a plurality of second branch each formed by a non-through groove in the rear surface, and includes a second communication channel that communicates the second branch channels with the second confluence channel; and a second lid plate that covers the rear surface of the second channel plate.
    Type: Grant
    Filed: March 1, 2022
    Date of Patent: April 22, 2025
    Assignees: CKD CORPORATION, Shimadzu Corporation, Shinwa Chemical Industries Ltd.
    Inventors: Shinichi Nitta, Hiroshi Itafuji, Mitsuyoshi Ohsaki, Masahide Gunji, Hiroshi Kobayashi, Katsuya Okumura
  • Patent number: 12279035
    Abstract: An inspection device includes: an illumination device; an imaging device that includes: an optical system that corrects a field curvature; an imaging element that takes an image via the optical system; and a mirror that reflects an incident light from the inspection object toward the optical system; and an inspection controller that: judges whether a quality of the inspection object is good or poor based on image data; and controls the imaging device to take an image of a first inspection area at a first timing when the first inspection area is located within a first focusing range, in which the first inspection area is focusable without the mirror, and to take an image of a second inspection area at a second timing when the second inspection area is located within a second focusing range, in which the second inspection area is focusable via the mirror.
    Type: Grant
    Filed: October 5, 2023
    Date of Patent: April 15, 2025
    Assignee: CKD CORPORATION
    Inventors: Yukihiro Taguchi, Shozo Oda
  • Patent number: 12264693
    Abstract: An operation detecting system for a fluid pressure actuator is provided with a first pressure sensor for detecting a first pressure value which is a pressure value in a first pressure acting chamber, a second pressure value which is pressure value in a second pressure acting chamber, and an operation detecting device including a detection program configured to calculate an addition value of the first pressure value and the second pressure value, calculate a time differential value of the addition value, and detect the start time and the stop time of movement of a piston based on a variation in the time differential value over time.
    Type: Grant
    Filed: May 17, 2024
    Date of Patent: April 1, 2025
    Assignee: CKD CORPORATION
    Inventor: Takemoto Kondo
  • Publication number: 20250100735
    Abstract: A packaged item inspection device includes: an illumination device that irradiates the packaged item with ultraviolet light; an imaging device that images the ultraviolet light reflected from the packaged item and obtains regular reflection light image data of the packaged item; and a hardware processor that determines whether the packaging material in the packaged item is defective or non-defective, based on the regular reflection light image data, depending on presence or absence of any tear or break in the packaging material. The hardware processor further processes the regular reflection light image data by a binarization process and thereby obtains binarized image data, and upon determining that an area of a connected region of a dark portion in the binarized image data is greater than a preset reference value, outputs a result of determination indicating that the packaging material is defective due to the presence of the tear or break.
    Type: Application
    Filed: December 11, 2024
    Publication date: March 27, 2025
    Applicant: CKD CORPORATION
    Inventors: Yukihiro Taguchi, Shiori Imaizumi, Shozo Oda
  • Patent number: 12259230
    Abstract: A three-dimensional measurement device includes: a light emitter; an optical system that splits an incident light, irradiates a measurement object with an object light and irradiates a reference plane with a reference light, and recombines the object and reference lights and emits a combined light; an imaging device that takes an image of a light emitted from the optical system; a storage device that stores transmission axis absolute angle data each obtained by a previous actual measurement of an absolute angle of a transmission axis of each polarizer; and a control device that calculates a phase difference between the reference and object lights based on luminance data of each pixel in luminance image data and the transmission axis absolute angle data of each polarizer corresponding to the pixel, and measures a height of the measurement object at the measurement position.
    Type: Grant
    Filed: April 5, 2023
    Date of Patent: March 25, 2025
    Assignee: CKD CORPORATION
    Inventors: Hiroyuki Ishigaki, Tomoru Okada, Ikuo Futamura
  • Publication number: 20250084932
    Abstract: A vacuum open-close valve includes a drive unit for driving a valve element based on an opening-degree command value. The drive unit includes a drive shaft connected to the valve element, a piston connected to the drive shaft at an opposite end from the valve element, a cylinder provided with a piston chamber housing the piston, and a bellofram that is retained by the piston and partitions the piston chamber. A controller is provided with an abnormality detection program configured to calculate an opening-degree difference between an opening-degree command value outputted to the vacuum open-close valve and an actual opening degree of the valve element driven by the opening-degree command value, and determine that the bellofram is damaged when the opening-degree difference is a first predetermined threshold value or more.
    Type: Application
    Filed: September 4, 2024
    Publication date: March 13, 2025
    Applicant: CKD CORPORATION
    Inventors: Kyouta NAKAYAMA, Tetsujiro Kono
  • Patent number: 12247593
    Abstract: A solenoid valve manifold (10) includes a connector member (70) that is formed by integrating a base portion (71) with a first connector portion (80) configured to electrically connect a first conductive member (52) to a circuit board (41) and a second connector portion (90) configured to electrically connect a second conductive member (62) to the circuit board (41). The base portion (71) has a through-hole (72). The base (30) includes two engagement projections (46). The base portion (71) is elastically deformable in a direction intersecting an insertion direction when the two engagement projections (46) are inserted into the through-hole (72). The connector member (70) is configured to be attached to the base (30) when a part of the base portion (71) around the through-hole (72) is engaged with the two engagement projections (46).
    Type: Grant
    Filed: February 8, 2023
    Date of Patent: March 11, 2025
    Assignee: CKD CORPORATION
    Inventors: Hisashi Hatano, Mitsuhiro Kosugi, Yasuhiko Kotera
  • Publication number: 20250055015
    Abstract: A winding apparatus winds up a belt-shaped electrode sheet and a belt-shaped separator sheet, and includes: a rotatable winding core to which the electrode sheet and the separator sheet are fed at accelerating or decelerating speed, and around which the electrode sheet and the separator sheet are wound; a rotatable transfer roller that defines a transfer path of the electrode sheet and has an outer circumference face on which the electrode sheet is placed; and a position adjustment unit that adjusts a position of the transfer roller along a rotation axis direction of the transfer roller. The position adjustment unit adjusts a relative positional relationship between the transfer roller and the electrode sheet placed thereon such that a trough portion of the electrode sheet protrudes from a width direction edge portion in the outer circumferential face of the transfer roller.
    Type: Application
    Filed: July 1, 2024
    Publication date: February 13, 2025
    Applicant: CKD CORPORATION
    Inventors: Takanori Yagi, Yusuke Yamaguchi
  • Patent number: 12215721
    Abstract: An electromagnetic valve manifold includes spacers and pressure reducing valves. Each spacer includes an attachment surface to which a body of the pressure reducing valve is attached. The body includes a first surface, a second surface, and a connecting surface, which connects the first and second surfaces to each other. A pressure gauge is provided on the connecting surface. The width of the body is smaller than the size of the pressure gauge in the width direction of the body. The bodies include one or more first bodies and one or more second bodies. The first surface of each first body is attached to the attachment surface. The second surface of each second body is attached to the attachment surface of one of the spacers different from the spacer to which the first body is attached. The first bodies and the second bodies are arranged alternately in the arrangement direction.
    Type: Grant
    Filed: January 19, 2023
    Date of Patent: February 4, 2025
    Assignee: CKD CORPORATION
    Inventors: Shinji Itoh, Chenghua Xue
  • Publication number: 20250027570
    Abstract: A fluid control valve includes a pressing member, a diaphragm member, and a valve seat. The pressing member presses and deforms the diaphragm member into contact with the valve seat. The valve seat includes a first annular valve seat made of fluorine resin and a second annular valve seat made of heat-resistant resin, which are arranged concentrically adjacent to each other. The heat-resistant resin has a higher deflection temperature under load at 1.82 MPa than the fluorine resin, measured according to ASTM D-648.
    Type: Application
    Filed: July 9, 2024
    Publication date: January 23, 2025
    Applicant: CKD CORPORATION
    Inventors: Tatsuhito AOYAMA, Shinya Takahashi
  • Patent number: 12196500
    Abstract: A heat exchange system is arranged between a chiller device and a temperature control member, and is provided with: supply line for supplying a refrigerant from the chiller device to the temperature control member; a return line for returning the refrigerant from the temperature control member to the chiller device; a bypass line for bypassing the supply line and the return line; a latent heat storage member arranged closer to the chiller device relative to a first connection point connecting the return line and the bypass line; and a flow distribution unit that is arranged at a second connection point connecting the outgoing line and the bypass line, and that is for adjusting a ratio for distributing refrigerant to the temperature control member and the bypass line.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: January 14, 2025
    Assignee: CKD CORPORATION
    Inventors: Akihiro Ito, Takahiro Minatani, Shinichi Nitta
  • Publication number: 20250012735
    Abstract: A visual inspection assistance device includes: a conveying device that conveys tablets as an object of a visual inspection; an imaging device that takes an image of the tablets that are conveyed by the conveying device; a display device; a central processing unit (CPU) that: determines, based on image data obtained by the imaging device, whether one or more of the tablets are defective, and displays, in the display device, information identifying the one or more of the tablets that have been determined to be defective; and a conveying control device that temporarily stops the conveying device from conveying the tablets in response to the CPU determining that the one or more of the tablets are detective.
    Type: Application
    Filed: September 18, 2024
    Publication date: January 9, 2025
    Applicant: CKD CORPORATION
    Inventor: Takamasa Ohtani
  • Patent number: 12188577
    Abstract: A butterfly valve includes a purge gas flow path supplying a purge gas for preventing inflow of a control fluid into a magnetic fluid sealing portion from a flow path through an insertion hole. The purge gas flow path is provided with an opening and closing valve for opening and closing the purge gas flow path and a pressure gauge for measuring a pressure value in the purge gas flow path, in the stated order from the upstream side. The purge gas flow path is connected to a portion between the magnetic fluid sealing portion and the flow path of the butterfly valve on the downstream side of the pressure gauge, and communicates with the flow path through the insertion hole. The butterfly valve further includes a control device that controls at least the opening and closing valve. The control device is provided with a monitoring program for monitoring a pressure value.
    Type: Grant
    Filed: April 1, 2022
    Date of Patent: January 7, 2025
    Assignee: CKD CORPORATION
    Inventors: Nobuhiro Fukukawa, Hiroki Kadoya, Yasunori Nishimura
  • Patent number: 12188566
    Abstract: A four-way valve includes a body and a valve component. The body includes a valve chamber and first to fourth communication channels which communicate with the valve chamber at positions arranged in sequence in a predefined rotational direction and cause the valve chamber to communicate with an outside. The valve component is rotatable in the predefined rotational direction and switches the four-way valve to be in at least one of: a first state in which the first and second communication channels communicate with the first region and the third and fourth communication channels communicate with the third region; and a second state in which the second communication channel communicates with the first region, the third communication channel communicates with the second region, and the first and fourth communication channels communicate with the third region.
    Type: Grant
    Filed: August 9, 2023
    Date of Patent: January 7, 2025
    Assignee: CKD CORPORATION
    Inventors: Akihiro Ito, Hiroki Doi, Masaya Yamauchi, Masayuki Kouketsu
  • Publication number: 20240414905
    Abstract: Aboard inspection device includes: an imaging device that takes an image of an area on the board where the adhesive is applied; a CPU that specifies, by a first procedure, a center portion area of the adhesive in the image; specifies, by a second procedure, a foot portion area of the adhesive around the center portion area in the image; specifies an entire area of the adhesive based on the center portion area and the foot portion area; and based on the entire area of the adhesive, determines whether a quality of the adhesive is good or poor. The adhesive has a red color and is applied on a green resist area, and when specifying the foot portion area, the CPU extracts, an area of lower saturation than a predetermined saturation reference value from a saturation image based on the image.
    Type: Application
    Filed: August 23, 2024
    Publication date: December 12, 2024
    Applicant: CKD CORPORATION
    Inventors: Kazuyoshi Kikuchi, Takuya Obata
  • Publication number: 20240401616
    Abstract: An operation detecting system for a fluid pressure actuator is provided with a first pressure sensor for detecting a first pressure value which is a pressure value in a first pressure acting chamber, a second pressure value which is pressure value in a second pressure acting chamber, and an operation detecting device including a detection program configured to calculate an addition value of the first pressure value and the second pressure value, calculate a time differential value of the addition value, and detect the start time and the stop time of movement of a piston based on a variation in the time differential value over time.
    Type: Application
    Filed: May 17, 2024
    Publication date: December 5, 2024
    Applicant: CKD Corporation
    Inventor: Takemoto KONDO
  • Patent number: 12152996
    Abstract: An inspection device inspects a formation state of a pocket portion formed in a container film of a blister pack and includes: an illumination device that irradiates a container film including the pocket portion with a predetermined electromagnetic wave; an imaging device that takes an image of at least the electromagnetic wave transmitted through a bottom portion of the pocket portion and obtains image data; a control device that extracts, based on the image data, shading pattern data corresponding to a shading pattern occurring in the bottom portion of the pocket portion by irradiation with the electromagnetic wave; a storage that stores a neural network and a model, the model being generated by learning of the neural network using, as learning data, only shading pattern data of a pocket portion without any formation defect among the extracted shading pattern data.
    Type: Grant
    Filed: February 3, 2023
    Date of Patent: November 26, 2024
    Assignee: CKD CORPORATION
    Inventors: Shozo Oda, Yukihiro Taguchi, Eiji Ohta
  • Patent number: D1053315
    Type: Grant
    Filed: February 23, 2022
    Date of Patent: December 3, 2024
    Assignee: CKD CORPORATION
    Inventors: Shinichi Okamoto, Ikuo Ogino, Shinji Itoh
  • Patent number: D1068033
    Type: Grant
    Filed: February 23, 2022
    Date of Patent: March 25, 2025
    Assignee: CKD CORPORATION
    Inventors: Shinichi Okamoto, Ikuo Ogino, Shinji Itoh