Patents by Inventor Ryo Maeda

Ryo Maeda 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: 12644225
    Abstract: The present invention provides a synthetic leather including at least a substrate (i), an adhesive layer (ii), and a skin layer (iii), in which the adhesive layer (ii) and the skin layer (iii) are formed from respective specific urethane resin compositions. The adhesive layer (ii) is formed from a urethane resin composition including an anionic urethane resin (X) and water (Y). The skin layer (iii) is formed from a urethane resin composition including an anionic urethane resin (S) and water (T), in which the anionic urethane resin (S) is produced using, for example, a polycarbonate polyol (A-1) produced using biomass-derived decanediol.
    Type: Grant
    Filed: September 9, 2021
    Date of Patent: June 2, 2026
    Assignee: DIC Corporation
    Inventors: Ya-Yi Tseng, Ryo Maeda
  • Patent number: 12630666
    Abstract: In the present invention, there is provided an urethane resin composition containing an urethane resin (A), water (B), and a surfactant (C) having no aromatic ring, and having a hydrophobic portion having 10 or more carbon atoms, wherein the urethane resin composition has a carbonate structure (X) and an oxyalkylene structure (Y) derived from the urethane resin (A). Further, the present invention provides a foamed urethane sheet which is formed from the urethane resin composition, wherein the foamed urethane sheet has a density of 200 to 1,000 kg/m3. The urethane resin composition according to claim 1, wherein the mass ratio of the carbonate structure (X) to the oxyalkylene structure (Y) [X/Y] is in the range of from 10/90 to 90/10.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: May 19, 2026
    Assignee: DIC Corporation
    Inventors: Norie Fujishita, Ryo Maeda
  • Patent number: 12606953
    Abstract: A task to be achieved by the present invention is to provide a urethane water dispersion which is unlikely to soak the substrate well, and which has excellent peel strength and excellent prompt releasability. The present invention provides a urethane resin water dispersion containing a urethane resin (A), water (B), and a crosslinking agent (C), wherein the urethane resin (A) has a viscosity at 50° C. in the range of from 15,000 to 34,000 mPa·s, a viscosity at 100° C. in the range of from 1,000 to 10,000 mPa·s, and a viscosity at 150° C. in the range of from 100 to 1,300 mPa·s. Further, the present invention provides a synthetic leather having a bonding layer formed from the urethane resin water dispersion. Further, the present invention provides a method for producing the synthetic leather.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: April 21, 2026
    Assignee: DIC Corporation
    Inventors: Tomohiro Tetsui, Ryo Maeda, Yayi Tseng
  • Patent number: 12545760
    Abstract: The present invention provides a urethane resin composition including an anionic urethane resin (X) and water (Y), in which the anionic urethane resin (X) is produced using, as raw materials, a polycarbonate polyol (A-1) produced using biomass-derived decanediol as a raw material, and a polycarbonate polyol (A-2) produced using a biomass-derived dihydroxy compound having a cyclic ether structure as a raw material. The polycarbonate polyol (A-1) is preferably produced further using butanediol as a raw material. In the polycarbonate polyol (A-1), the molar ratio [(C4)/(C10)] of the butanediol (C4) to the biomass-derived decanediol (C10) is preferably within a range of 50/50 to 98/2.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: February 10, 2026
    Assignee: DIC Corporation
    Inventors: Yayi Tseng, Ryo Maeda
  • Patent number: 12486439
    Abstract: A urethane resin composition including water, the urethane resin composition being produced using a biomass raw material and having high oleic-acid resistance, excellent low-temperature flexibility, and high peel strength. A urethane resin composition including an anionic urethane resin (X) and water (Y), in which the anionic urethane resin (X) is produced using a polyol (a) including a biomass-derived polycarbonate polyol (a1), a polyisocyanate (b), and an alkanolamine (c), as essential raw materials. Furthermore, An adhesive including the urethane resin composition and a synthetic leather having an adhesive layer formed from the adhesive.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: December 2, 2025
    Assignee: DIC Corporation
    Inventors: Yayi Tseng, Ryo Maeda
  • Patent number: 12410316
    Abstract: A water-containing urethane resin composition that is produced using a biomass raw material and excellent in oleic acid resistance, texture, and liquid mixture stability. A urethane resin composition including: a urethane resin (A) having an anionic group and a nonionic group and produced using as a raw material a polycarbonate polyol (a1) produced using biomass-derived decanediol as a raw material; a nonionic emulsifier (B); and water (C). A leather sheet in which a coagulated product of the urethane resin composition is present in a fibrous substrate. Both the urethane resin (A) and the nonionic emulsifier (B) preferably have an oxyethylene group and an oxypropylene group.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: September 9, 2025
    Assignee: DIC Corporation
    Inventors: Ryo Maeda, Yayi Tseng
  • Patent number: 12291644
    Abstract: The present invention provides an urethane resin composition containing an urethane resin (A), water (B), and a film forming auxiliary (C), wherein the film forming auxiliary (C) is a polyethylene glycol (c1) and/or a polyethylene glycol (c2) having an alkoxy group having 11 or less carbon atoms. Further, the present invention provides a layered product having at least a substrate (i) and a foamed layer (ii) which is formed from the above-mentioned urethane resin composition. The polyethylene glycol (c1) and the polyethylene glycol (c2) preferably have a weight average molecular weight in the range of from 100 to 4,000. The urethane resin (A) preferably has an anionic group.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: May 6, 2025
    Assignee: DIC Corporation
    Inventors: Norie Fujishita, Ryo Maeda
  • Patent number: 12206352
    Abstract: A rotation angle detecting method includes measuring a current flowing through a motor, and obtaining a rotation angle of the motor based on a value of the measured current. The obtaining of the rotation angle of the motor includes obtaining the rotation angle in an inertial rotation of the motor based on a rotational angular velocity of the motor immediately before a first time point, a time period from the first time point to a second time point, and a time period from the second time point to a third time point. The first time point is a time point at which driving of the motor is stopped, the second time point is a time point at which a polarity of the value of the measured current is inverted, and the third time point is a time point at which the value of the measured current becomes zero.
    Type: Grant
    Filed: April 19, 2023
    Date of Patent: January 21, 2025
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Ryo Maeda, Ikuyasu Miyako, Wataru Kimura
  • Patent number: 12203750
    Abstract: A rotation angle detection device includes a current meter that measures a current flowing in a direct current motor; a filter that extracts a ripple component from the current; a ripple detector that detects a ripple from a signal that has passed through the filter; and a rotation angle detector that detects a rotation angle of the direct current motor based on the number of ripples. The rotation angle detector measures an observation period based on consecutive ripples, calculates an estimation period between the consecutive ripples based on the observation period, determines whether the observation period is within a normal range based on the estimation period and the observation period, and in response to determining that the observation period is within the normal range and an immediately-previous observation period is outside the normal range, calculates a number of correction ripples CRN so as to correct the number of the ripples.
    Type: Grant
    Filed: January 24, 2023
    Date of Patent: January 21, 2025
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Ikuyasu Miyako, Wataru Kimura, Ryo Maeda
  • Publication number: 20250012008
    Abstract: The present invention provides a urethane resin composition including a urethane resin (A) having a nonionic group, water (B), and a powder (C), wherein the urethane resin (A) has a flow start temperature of 100° C. or above, the mass ratio [(A)/(B)] of the urethane resin (A) to the water (B) is in the range of 50/50 to 80/20, and the bulk density of the powder (C) is 400 g/L or less. The present invention also provides a synthetic leather including at least a base fabric (i), an adhesive layer (ii), and a skin layer (iii), wherein the adhesive layer (ii) is formed from the urethane resin composition. The urethane resin composition can form a film with excellent peel strength and texture.
    Type: Application
    Filed: November 24, 2022
    Publication date: January 9, 2025
    Applicant: DIC CORPORATION
    Inventors: Tomohiro Tetsui, Miwa Usguchi, Ryo Maeda, Ryo Nonaka
  • Publication number: 20240417923
    Abstract: The present invention provides a laminate including a thermoplastic resin layer and a coating formed from a urethane resin composition including a urethane resin (A) having a nonionic group, water (B), and an epoxy compound (C), and also provides a synthetic leather including the laminate. The laminate including the coating formed from the urethane resin composition and the synthetic leather can exhibit excellent bleeding resistance and heat discoloration resistance.
    Type: Application
    Filed: September 8, 2022
    Publication date: December 19, 2024
    Applicant: DIC Corporation
    Inventors: Takuma Moribatake, Yasuhiro Nakamoto, Ryo Maeda
  • Publication number: 20240309582
    Abstract: The present invention provides a synthetic leather including at least a substrate (i), an adhesive layer (ii), and a skin layer (iii), in which the adhesive layer (ii) and the skin layer (iii) are formed from respective specific urethane resin compositions. The adhesive layer (ii) is formed from a urethane resin composition including an anionic urethane resin (X) and water (Y). The skin layer (iii) is formed from a urethane resin composition including an anionic urethane resin (S) and water (T), in which the anionic urethane resin (S) is produced using, for example, a polycarbonate polyol (A-1) produced using biomass-derived decanediol.
    Type: Application
    Filed: September 9, 2021
    Publication date: September 19, 2024
    Applicant: DIC Corporation
    Inventors: Ya-Yi Tseng, Ryo Maeda
  • Publication number: 20240314288
    Abstract: A display control device includes an acquiring unit, a processing unit, a control unit, and a display control unit. The acquiring unit acquires a VR video captured by an imaging device. The processing unit performs, on a live view image of the VR video, reducing processing to reduce probability of generating a specific symptom to a user viewing the live view image. The control unit controls a degree of the reducing processing on the live view image based on whether or not the user is an operator of the imaging device, in a case where movement of the imaging device is detected. The display control unit controls a display to display an image obtained after the reducing processing is performed on the live view image, in a case where the reducing processing is performed on the live view image.
    Type: Application
    Filed: March 7, 2024
    Publication date: September 19, 2024
    Inventor: RYO MAEDA
  • Publication number: 20240309176
    Abstract: An aluminum crosslinking agent for dip molding has a sufficient stability enabling use in mass production of gloves and the like, and makes it possible to provide a molded body obtained using the aluminum crosslinking agent, which has sufficient tensile strength and fatigue durability and is soft and elongating; a dip molding composition gloves, and a method for producing gloves are provided. These are an aluminum crosslinking agent for dip molding, including a polynuclear aluminum lactate compound, which has a polynuclear aluminum structure and at least one lactic acid residue. The polynuclear aluminum structure has a structure where a plurality of aluminum atoms are polymerized through one oxygen atom, and has a degree of polymerization of 2 to 20, and lactic acid residues or hydroxyl groups are bonded to remaining valences of the aluminum atom.
    Type: Application
    Filed: February 1, 2022
    Publication date: September 19, 2024
    Applicant: MIDORI ANZEN CO., LTD.
    Inventors: Norihide ENOMOTO, Shoya SATAKE, Taku TSUNEISHI, Ryo MAEDA, Shun ISHIHARA
  • Patent number: 11968469
    Abstract: An apparatus comprises a circuitry, a temporary memory and a permanent memory storing necessary information for executing each of a plurality types of processing. The apparatus receives a switching instruction and switches processing executed by the circuitry by varying the necessary information in response to reception of the instruction. The information is read out and loaded into a first region of the temporary memory. If the circuitry is executing at least one of the plurality types of processing when the instruction is made, the apparatus switches the circuitry to a state of being capable of executing the processing by reading out the information of the processing, loading the information into a second region of the temporary memory, and moving or copying the information related to the processing from the second region to the first region in response to the executing processing ending.
    Type: Grant
    Filed: August 9, 2022
    Date of Patent: April 23, 2024
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Ryo Maeda
  • Publication number: 20230387839
    Abstract: A rotation angle detecting method includes measuring a current flowing through a motor, and obtaining a rotation angle of the motor based on a value of the measured current. The obtaining of the rotation angle of the motor includes obtaining the rotation angle in an inertial rotation of the motor based on a rotational angular velocity of the motor immediately before a first time point, a time period from the first time point to a second time point, and a time period from the second time point to a third time point. The first time point is a time point at which driving of the motor is stopped, the second time point is a time point at which a polarity of the value of the measured current is inverted, and the third time point is a time point at which the value of the measured current becomes zero.
    Type: Application
    Filed: April 19, 2023
    Publication date: November 30, 2023
    Inventors: Ryo MAEDA, Ikuyasu MIYAKO, Wataru KIMURA
  • Patent number: 11795267
    Abstract: An aqueous urethane resin composition includes a urethane resin and an aqueous medium, wherein the urethane resin is a reaction product of a polyol comprising an anionic group-containing polyol and an aromatic polyisocyanate, and has an anionic group concentration of 0.35 mmol/g or less. A synthetic leather is also provided. The synthetic leather includes a laminate including at least a base fabric, a bonding layer, and a skin layer, wherein the bonding layer is made from the aqueous urethane resin composition. A task to be achieved is to provide an aqueous urethane resin composition exhibiting excellent peel strength, hydrolytic resistance, and light resistance.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: October 24, 2023
    Assignee: DIC CORPORATION
    Inventor: Ryo Maeda
  • Publication number: 20230280151
    Abstract: A rotation angle detection device includes a current meter that measures a current flowing in a direct current motor; a filter that extracts a ripple component from the current; a ripple detector that detects a ripple from a signal that has passed through the filter; and a rotation angle detector that detects a rotation angle of the direct current motor based on the number of ripples. The rotation angle detector measures an observation period based on consecutive ripples, calculates an estimation period between the consecutive ripples based on the observation period, determines whether the observation period is within a normal range based on the estimation period and the observation period, and in response to determining that the observation period is within the normal range and an immediately-previous observation period is outside the normal range, calculates a number of correction ripples CRN so as to correct the number of the ripples.
    Type: Application
    Filed: January 24, 2023
    Publication date: September 7, 2023
    Inventors: Ikuyasu MIYAKO, Wataru KIMURA, Ryo MAEDA
  • Publication number: 20230272153
    Abstract: The present invention provides a urethane resin composition including an anionic urethane resin (X) and water (Y), in which the anionic urethane resin (X) is produced using, as raw materials, a polycarbonate polyol (A-1) produced using biomass-derived decanediol as a raw material, and a polycarbonate polyol (A-2) produced using a biomass-derived dihydroxy compound having a cyclic ether structure as a raw material. The polycarbonate polyol (A-1) is preferably produced further using butanediol as a raw material. In the polycarbonate polyol (A-1), the molar ratio [(C4)/(C10)] of the butanediol (C4) to the biomass-derived decanediol (C10) is preferably within a range of 50/50 to 98/2.
    Type: Application
    Filed: June 10, 2021
    Publication date: August 31, 2023
    Applicant: DIC Corporation
    Inventors: Yayi TSENG, Ryo MAEDA
  • Patent number: 11743575
    Abstract: An electronic apparatus is capable to set a specific parameter related to exposure, and performs control so that display is performed in a first display mode that displays a live-view image with brightness based on the specific parameter. The electronic apparatus accepts an instruction for moving an execution position of a specific function related to shooting and, in a case where the instruction is received while display is performed in the first display mode, performs control to display a live-view image in a second display mode that displays the live-view image with brightness that is not relevant to the specific parameter.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: August 29, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Ryo Maeda