Patents by Inventor Mitsuru Kato

Mitsuru Kato 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).

  • Publication number: 20220226962
    Abstract: Disclosed is a polishing pad including a polishing layer having a polishing surface, wherein the polishing surface includes a deep-groove region having a first pattern formed by a deep groove or hole having a depth of 0.3 mm or more, and a land region that is a region other than the deep-groove region, and the land region includes shallow recesses having a second pattern and a depth of 0.01 to 0.1 mm, and a plurality of island-like land portions surrounded by the shallow recesses and having a maximum distance in a horizontal direction of 8 mm or less.
    Type: Application
    Filed: June 4, 2020
    Publication date: July 21, 2022
    Applicant: KURARAY CO., LTD.
    Inventors: Mitsuru KATO, Hirofumi KIKUCHI, Chihiro OKAMOTO, Shinya KATO
  • Publication number: 20210388234
    Abstract: Disclosed are a polyurethane for use in a polishing layer, and a polishing layer and a polishing pad using the same, the polyurethane including a terminal group represented by the following formula (I): R—(OX)n— (I) wherein R represents a monovalent hydrocarbon group having 1 to 30 carbon atoms that may be substituted with a heteroatom or may be interrupted by a heteroatom, X represents an alkylene group having 2 to 4 carbon atoms, 90 to 100% of the alkylene group being an ethylene group, and n represents a number from 8 to 120.
    Type: Application
    Filed: September 3, 2019
    Publication date: December 16, 2021
    Applicant: KURARAY CO., LTD.
    Inventors: Mitsuru KATO, Chihiro OKAMOTO, Shinya KATO
  • Publication number: 20210380845
    Abstract: Disclosed is a polyurethane for use in a polishing layer, including a carboxylic acid ester group, and a polyurethane preferably having a carboxylic acid ester group in at least one of a side chain, a main chain terminal, and a main chain skeleton is preferably used. Also disclosed is a method for modifying a polishing layer, including the steps of: preparing a polishing layer including a polyurethane having a carboxylic acid ester group; and hydrolyzing the carboxylic acid ester group of the polyurethane, to produce a carboxyl group.
    Type: Application
    Filed: November 1, 2019
    Publication date: December 9, 2021
    Applicant: KURARAY CO., LTD.
    Inventors: Azusa SUNAYAMA, Mitsuru KATO, Minori TAKEGOSHI, Chihiro OKAMOTO, Shinya KATO
  • Patent number: 11154960
    Abstract: Provided is a polishing pad including a polishing surface having a zeta potential of +0.1 mV or more at a pH of 10.0. Preferably, a polishing pad including a polyurethane having a tertiary amine is provided. Further preferably, the polyurethane having a tertiary amine is a reaction product of a polyurethane reaction raw material containing at least a chain extender having a tertiary amine. A polishing method using the polishing pads is also provided, wherein the method is performed while supplying an alkaline polishing slurry.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: October 26, 2021
    Assignee: KURARAY CO., LTD.
    Inventors: Minori Takegoshi, Mitsuru Kato, Chihiro Okamoto, Shinya Kato
  • Publication number: 20210309794
    Abstract: There is used a polyurethane for polishing layers that can be used as a material of a polishing layer of a polishing pad, the polyurethane including a thermoplastic polyurethane that is a reaction product of a polyurethane raw material including a polymer diol, an organic diisocyanate, and a chain extender, wherein the chain extender contains 50 mass % or more of a first chain extender including a straight-chain carbon backbone having 7 to 12 carbon atoms.
    Type: Application
    Filed: July 19, 2019
    Publication date: October 7, 2021
    Applicant: KURARAY CO., LTD.
    Inventors: Kiyofumi KADOWAKI, Mitsuru KATO, Minori TAKEGOSHI, Chihiro OKAMOTO, Shinya KATO
  • Publication number: 20210276143
    Abstract: A modification method of a polyurethane, including the steps of: preparing a polyurethane having an ethylenically unsaturated bond; and treating the polyurethane with a liquid containing a compound having a conjugated double bond, or a modification method of a polyurethane, including the steps of: preparing a polyurethane having a conjugated double bond; and treating the polyurethane with a liquid containing a compound having an ethylenically unsaturated bond is used.
    Type: Application
    Filed: April 26, 2019
    Publication date: September 9, 2021
    Applicant: KURARAY CO., LTD.
    Inventors: Azusa OSHITA, Mitsuru KATO, Minori TAKEGOSHI, Chihiro OKAMOTO, Shinya KATO
  • Patent number: 11053339
    Abstract: Disclosed herein are polyurethanes useful for polishing layers, where the polyurethane is a polyurethane having a Schiff base. Also disclosed herein are polishing layers containing the polyurethanes, polishing methods that use the polishing layers, and a modification method including a step of converting the Schiff base into at least one functional group selected from an aldehyde group, a carboxylic acid group, a hydroxyl group, and an amino group.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: July 6, 2021
    Assignee: KURARAY CO., LTD.
    Inventors: Azusa Oshita, Minori Takegoshi, Mitsuru Kato, Chihiro Okamoto, Shinya Kato
  • Patent number: 10994968
    Abstract: An elevator rope elongation measuring device provided with: a camera for photographing one or a plurality of elevator ropes R; and an image processing unit for image processing a photographed image output from the camera, wherein: the image processing unit detects an external form portion of the elevator rope R as a regular hill and valley shape T, converts a cyclic length of the hill and valley shape into actual dimensions and makes this a measured value, and finds a ratio of the measured value with respect to a standard value prescribed for the elevator rope as an elongation, therefore attaining the effect of making it unnecessary to have a preliminary installation of a sensor or marker to the rope, or preliminary creation of a database.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: May 4, 2021
    Assignees: OTIS ELEVATOR COMPANY, MEIDENSHA CORPORATION
    Inventors: Mitsuru Kato, Hideki Miyazawa, Yoshiki Nota, Yusuke Watabe
  • Publication number: 20210101784
    Abstract: According to one embodiment, a cleaning head for cleaning a plurality of hoisting belts and/or at least one sheave of an elevator system is provided. The at least one sheave includes a plurality of grooves for receiving each of the hoisting belts. The cleaning head comprises a base plate and a plurality of wipers fixed to an upper end of the base plate to project outwards from the base plate. The cleaning head may be used to clean the plurality of hoisting belts at once and/or the plurality of grooves of the at least one sheave at once.
    Type: Application
    Filed: October 2, 2019
    Publication date: April 8, 2021
    Inventors: Mitsuru Kato, Hirotomo Tanaka
  • Publication number: 20210087325
    Abstract: A Schiff base-containing chain extender may be a diol having a Schiff base or a derivative thereof, as well as a polyurethane produced using the same and a modification method thereof, and a polishing layer including a polyurethane and a polishing method using the polishing layer.
    Type: Application
    Filed: November 30, 2020
    Publication date: March 25, 2021
    Applicant: KURARAY CO., LTD.
    Inventors: Azusa OSHITA, Minori TAKEGOSHI, Mitsuru KATO, Chihiro OKAMOTO, Shinya KATO
  • Patent number: 10741049
    Abstract: An elevator motion alert system for alerting a mechanic working inside a hoistway comprises a self-power-generating car beacon mounted on an elevator car, a self-power-generating counterweight beacon mounted on a counterweight, and a mobile device carried by the mechanic for receiving signals transmitted from the car beacon and the counterweight beacon and for providing an alert to the mechanic whenever the elevator car or the counterweight is approaching.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: August 11, 2020
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Mitsuru Kato, Hideki Miyazawa, Jiro Murata
  • Patent number: 10730721
    Abstract: According to one embodiment, a rope cleaning device comprises a scraper ring which engages grooves between strands of a wire rope to scrape out foreign material from the grooves as the wire rope passes through the scraper ring, a wiper ring positioned in series with the scraper ring for wiping the surface of the wire rope as the wire rope passes through the wiper ring and a rotational mechanism which allows the scraper ring to rotate about the axis of the wire rope.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: August 4, 2020
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Mitsuru Kato, Hirotomo Tanaka
  • Publication number: 20200190247
    Abstract: Disclosed herein are polyurethanes useful for polishing layers, where the polyurethane is a polyurethane having a Schiff base. Also disclosed herein are polishing layers containing the polyurethanes, polishing methods that use the polishing layers, and a modification method including a step of converting the Schiff base into at least one functional group selected from an aldehyde group, a carboxylic acid group, a hydroxyl group, and an amino group.
    Type: Application
    Filed: April 27, 2018
    Publication date: June 18, 2020
    Applicant: KURRAY CO., LTD.
    Inventors: Azusa OSHITA, Minori TAKEGOSHI, Mitsuru KATO, Chihiro OKAMOTO, Shinya KATO
  • Patent number: 10684120
    Abstract: A wired-rope measuring device, provided with two cameras 1, 2 that shoot one or no less than two wired ropes 8 from different directions and an analyzing device 5 that analyzes image data that is an image shot by the two cameras 1, 2, wherein the analyzing device 5 applies the principle of triangulation by a stereo method to the image data to seek a center coordinate P0 of the wired rope 8 relative to the cameras 1, 2 and volumetric anamorphosis is corrected when calculating a diameter D of the wired rope 8 based on the center coordinate P0 of the wired rope 8.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: June 16, 2020
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Yoshiki Nota, Yusuke Watabe, Mitsuru Kato, Ryuji Onoda, Hirotomo Tanaka, Takashi Takeuchi
  • Patent number: 10625391
    Abstract: Disclosed is a non-porous molded article for a polishing layer, the non-porous molded article including a thermoplastic polyurethane, wherein the thermoplastic polyurethane has a maximum value of a loss tangent (tan ?) in a range of ?70 to ?50° C. of 4.00×10?2 or less. Preferably, the thermoplastic polyurethane is obtained by polymerization of a polymer diol having a number average molecular weight of 650 to 1400, an organic diisocyanate, and a chain extender, and a content ratio of nitrogen derived from an isocyanate group of the organic diisocyanate is 5.7 to 6.5 mass %.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: April 21, 2020
    Assignee: KURARAY CO., LTD.
    Inventors: Kiyofumi Kadowaki, Shinya Kato, Chihiro Okamoto, Mitsuru Kato, Minori Takegoshi
  • Publication number: 20200071130
    Abstract: An elevator-rope inspection device comprising a camera for capturing images of the elevator rope R, and an image-processing unit for processing a captured image outputted by the camera, wherein the image-processing unit detects a location of wear by implementing binarization on the captured images, and a labeling process that assigns a label to the location of wear, measures a distance between labels 1, 2, and 3 assigned by the labeling process, and when that distance is less than a fixed value, it judges that the area between labels is a wire break, so texture information of the elevator rope is unnecessary in advance.
    Type: Application
    Filed: August 27, 2019
    Publication date: March 5, 2020
    Inventors: Mitsuru Kato, Hideki Miyazawa, Yoshiki Nota, Yusuke Watabe
  • Publication number: 20200071131
    Abstract: An elevator rope elongation measuring device provided with: a camera for photographing one or a plurality of elevator ropes R; and an image processing unit for image processing a photographed image output from the camera, wherein: the image processing unit detects an external form portion of the elevator rope R as a regular hill and valley shape T, converts a cyclic length of the hill and valley shape into actual dimensions and makes this a measured value, and finds a ratio of the measured value with respect to a standard value prescribed for the elevator rope as an elongation, therefore attaining the effect of making it unnecessary to have a preliminary installation of a sensor or marker to the rope, or preliminary creation of a database.
    Type: Application
    Filed: August 27, 2019
    Publication date: March 5, 2020
    Inventors: Mitsuru Kato, Hideki Miyazawa, Yoshiki Nota, Yusuke Watabe
  • Publication number: 20200003549
    Abstract: A wired-rope measuring device, provided with two cameras 1, 2 that shoot one or no less than two wired ropes 8 from different directions and an analyzing device 5 that analyzes image data that is an image shot by the two cameras 1, 2, wherein the analyzing device 5 applies the principle of triangulation by a stereo method to the image data to seek a center coordinate P0 of the wired rope 8 relative to the cameras 1, 2 and volumetric anamorphosis is corrected when calculating a diameter D of the wired rope 8 based on the center coordinate P0 of the wired rope 8.
    Type: Application
    Filed: November 29, 2017
    Publication date: January 2, 2020
    Inventors: Yoshiki Nota, Yusuke Watabe, Mitsuru Kato, Ryuji Onoda, Hirotomo Tanaka, Takashi Takeuchi
  • Publication number: 20200004057
    Abstract: A laser processing apparatus disclosed in the present application includes: an optical deflection unit capable of changing a deflection direction of and outgoing energy of an incoming laser pulse by changes of a frequency of and an amplitude of a driving signal to be supplied; and a control unit configured to supply driving signals with amplitudes corresponding to respective frequencies. In a laser processing apparatus configured to process a workpiece by leading outgoing laser pulse of the optical deflection unit to the workpiece and irradiating the workpiece with the laser pulse, as the amplitude corresponding to each of the frequencies, the control unit supplies an amplitude having the ratio that is close to the lowest ratio among ratios of the outgoing energy with respect to the incoming energy of the laser pulse at an amplitude having the largest outgoing energy of the optical deflection unit.
    Type: Application
    Filed: June 20, 2019
    Publication date: January 2, 2020
    Applicant: Via Mechanics, Ltd.
    Inventors: Kazuya MATSUMOTO, Kazuo WATANABE, Atsushi SAKAMOTO, Masanori SATO, Mitsuru KATO, Masaru KIKUCHI
  • Publication number: 20190359450
    Abstract: During a maintenance inspection, an optical rope diameter measuring device is provided at a predetermined position along a path of a wire rope, rope diameter is measured at multiple measuring points while the elevator is driven in test mode, and diameter reduction at each measuring point is determined and stored as a first diameter reduction (S2_S6). During a subsequent maintenance inspection, rope diameter is similarly measured at each measuring point to determine diameter reduction constituting a second diameter reduction (S7_S11). Based on these two diameter reductions, the time at which diameter reduction will reach a predetermined threshold value is predicted for each measuring point, and the earliest time is displayed as a rope replacement time (S12_S14).
    Type: Application
    Filed: January 23, 2018
    Publication date: November 28, 2019
    Inventors: Mitsuru Kato, Hirotomo Tanaka, Takashi Takeuchi, Ryuji Onoda, Yusuke Watabe, Yoshiki Nota, Kazuaki Chida