Patents by Inventor Shuhei Takahashi

Shuhei 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).

  • Patent number: 12213849
    Abstract: To provide a dental zirconia blank which has high permeability, can reproduce a color tone close to a natural tooth and a strength to be able to tolerate in oral cavity. Furthermore, to provide a dental zirconia blank from which a prosthesis device of 4 or more units having high strength can be prepared. To provide a dental zirconia blank having a plurality of layers, comprising; a first layer consisting of a high permeability ceramic containing 91.6 to 96.5 mol % of zirconium oxide and 3.5 to 8.4 mol % of yttrium oxide, and a second layer consisting of a low permeability ceramic containing 95.6 to 98.5 mol % of zirconium oxide and 1.5 to 4.4 mol % of yttrium oxide, wherein a content rate of yttrium oxide in the low permeability ceramic is lower than a content rate of yttrium oxide in the high permeability ceramic by 0.5 to 5.4 mol %, and the first layer is positioned at one end of the plurality of layers in a layering direction.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: February 4, 2025
    Assignee: SHOFU INC.
    Inventors: Rieko Aiba, Shuhei Takahashi, Toshio Kitamura
  • Patent number: 12193897
    Abstract: To provide a zirconia perfect sintered body which has a chroma of an excellent color tone and excellent translucency as compared with a zirconia mill blank for dental cutting and machining prepared from a zirconia raw material powder containing various stabilizing materials while maintaining high strength, and does not cause deformation.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: January 14, 2025
    Assignee: SHOFU INC.
    Inventors: Seiji Ban, Shuhei Takahashi, Toshio Kitamura, Rieko Aiba
  • Patent number: 12194112
    Abstract: To provide a liquid for improving translucency for dental zirconia calcined body which may impart high translucency which is similar to an enamel of a natural tooth to a zirconia sintered body and a method for using thereof. The liquid for improving translucency for dental zirconia calcined body of the present disclosure contains a solvent and an indium compound, wherein a content of the indium compound based on the total amount of the liquid improving translucency for dental zirconia calcined body is within a range of 2.0 wt. % to 20.0 wt. % in terms of indium.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: January 14, 2025
    Assignee: SHOFU INC.
    Inventors: Kazumichi Nonaka, Shuhei Takahashi
  • Patent number: 12175817
    Abstract: An individual vehicle information database of a center device has a waiting queue used to sequentially write a plurality of individual vehicle information transferred by an individual vehicle information registration unit. When attempting to transfer individual vehicle information sent from a master device to the individual vehicle information database, the individual vehicle information registration unit refers to the waiting queue, and if a write waiting number is less than a predetermined number, the individual vehicle information is stored in the waiting queue. If the write waiting number is at least the predetermined number, the individual vehicle information is stored in the waiting queue if any of individual vehicle information has content satisfying a write priority condition. If all of the individual vehicle information have content not satisfying the write priority condition, the vehicle information is not stored in the waiting queue.
    Type: Grant
    Filed: July 18, 2022
    Date of Patent: December 24, 2024
    Assignee: DENSO CORPORATION
    Inventors: Nao Sakurai, Shuhei Takahashi
  • Patent number: 12141566
    Abstract: In a vehicle information communication system, a center device includes an individual vehicle configuration information storage unit in which configuration information transmitted from a plurality of vehicles is stored in such a form that transmission timings are specifiable, a campaign information storage unit in which campaign identification information and target vehicle identification information for identifying data update target vehicles are stored as campaign information related to data update for vehicle. The center device refers to the campaign storage unit and the individual vehicle configuration information storage unit, and when there is no transmission of the configuration information from the target vehicle for a predetermined period of time, transmits a message for urging data update to the in-vehicle device of the target vehicle.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: November 12, 2024
    Assignee: DENSO CORPORATION
    Inventors: Nao Sakurai, Shuhei Takahashi, Yuzo Harata, Kazuhiro Uehara, Takuya Hasegawa, Takuya Kawasaki, Kazuaki Hayakawa
  • Publication number: 20240315815
    Abstract: To provide a zirconia perfect sintered body which has a chroma of an excellent color tone and excellent translucency as compared with a zirconia mill blank for dental cutting and machining prepared from a zirconia raw material powder containing various stabilizing materials while maintaining high strength, and does not cause deformation.
    Type: Application
    Filed: May 31, 2024
    Publication date: September 26, 2024
    Applicant: SHOFU INC.
    Inventors: Seiji Ban, Shuhei Takahashi, Toshio Kitamura, Rieko Aiba
  • Publication number: 20240315816
    Abstract: To provide a zirconia perfect sintered body which has a chroma of an excellent color tone and excellent translucency as compared with a zirconia mill blank for dental cutting and machining prepared from a zirconia raw material powder containing various stabilizing materials while maintaining high strength, and does not cause deformation.
    Type: Application
    Filed: May 31, 2024
    Publication date: September 26, 2024
    Applicant: SHOFU INC.
    Inventors: Seiji BAN, Shuhei TAKAHASHI, Toshio KITAMURA, Rieko AIBA
  • Publication number: 20240311129
    Abstract: A distribution server distributes update data of software for an in-vehicle device to vehicles via a wireless communication network. The distribution server includes a processor. The processor distributes the update data encrypted with a common key to the vehicles. The processor transmits the common key encrypted by a session key method to each of the vehicles.
    Type: Application
    Filed: February 27, 2024
    Publication date: September 19, 2024
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shuhei Takahashi, Yuzo Harata
  • Publication number: 20240311132
    Abstract: A distribution system includes a vehicle that includes an in-vehicle network configured by in-vehicle devices, and a distribution server that distributes update data of software for the in-vehicle devices to the vehicle. Updating the software with the update data is performed on a condition that a configuration of the in-vehicle network is normal. The distribution server includes a processor and a storage unit that stores normal configuration information that indicates a normal configuration of the in-vehicle network. The vehicle transmits configuration information on the in-vehicle network to the distribution server. The processor notifies, when the configuration of the in-vehicle network is determined not to be normal, a user of the vehicle that the configuration of the in-vehicle network is not normal.
    Type: Application
    Filed: February 29, 2024
    Publication date: September 19, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shuhei TAKAHASHI, Yuzo HARATA
  • Publication number: 20240311135
    Abstract: A center device that manages data to be written in an electronic control device and performs, by an application program, functions to transmit update data to a vehicle by wireless communication is provided. An application program implementing at least one of the functions adopts a serverless architecture. The application program is activated upon occurrence of an event and is dynamically allocated with a resource in an on-demand manner for execution of a code of the application program. The resource is released when the execution of the code is terminated. The center device is configured to receive vehicle configuration information and determine whether there is campaign information; generate campaign notification information; manage a generation state of the campaign notification information; and distribute the campaign notification information.
    Type: Application
    Filed: May 28, 2024
    Publication date: September 19, 2024
    Inventors: Hideo YOSHIMI, Yuzo HARATA, Nao KOJIMA, Kazuhiro UEHARA, Yoshitaka OZAKI, Shuhei TAKAHASHI, Masaaki ABE, Koto TOMATSU
  • Publication number: 20240270654
    Abstract: To provide a preparing method of a zirconia mill blank for dental cutting and machining having any one or more of translucency gradation, color gradation and strength gradation after perfect sintering by impregnating a zirconia calcined body with a plurality of impregnating solutions, which can suppress deterioration of the fitting property of a dental prosthesis device prepared from the zirconia mill blank for dental cutting and machining and a zirconia mill blank for dental cutting and machining having any one or more of translucency gradation, color gradation and strength gradation after perfect sintering and suppressing deterioration of the fitting property of a dental prosthesis device prepared from the zirconia mill blank for dental cutting and machining.
    Type: Application
    Filed: October 27, 2023
    Publication date: August 15, 2024
    Applicant: SHOFU INC.
    Inventors: Kazumichi NONAKA, Shuhei TAKAHASHI
  • Publication number: 20240261070
    Abstract: To provide a zirconia mill blank for dental cutting and machining that can impart translucency gradation and color gradation similar to a natural tooth to a zirconia perfect sintered body without the need for special equipment. To provide a zirconia mill blank for dental cutting and machining comprising two opposing surfaces and a side surface between the two opposing surfaces, wherein the side surface has a rectangular shape in a side view of the zirconia mill blank for dental cutting and machining, and in a case in which one of the two opposing surfaces is defined as surface A, the other surface of the two opposing surfaces is defined as surface B, a surface which is parallel to the surface A and is located at a position of 1.0 mm to 1.5 mm from the surface A toward the surface B in a direction parallel to the side surface is defined as surface C, points which are set to having 0.
    Type: Application
    Filed: October 27, 2023
    Publication date: August 8, 2024
    Applicant: SHOFU INC.
    Inventors: Kazumichi NONAKA, Shuhei TAKAHASHI
  • Publication number: 20240252292
    Abstract: To provide a ceramic mill blank for dental cutting and machining in which cracks or chips are not caused on the outer edge of the ceramic mill blank even if attaching to and detaching from a dental milling machine are repeated and it is possible to machine the vicinity of the outer edge of the ceramic mill blank. To provide a ceramic mill blank for dental cutting and machining, wherein, the ceramic mill blank for dental cutting and machining comprises a ceramic portion to be cut and machined and one or more seal members, the ceramic portion consists of a ceramic material which is not finally sintered, the ceramic portion has an outer peripheral surface which is engageable with a holding tool, the one or more seal members are provided on the outer peripheral surface of the ceramic portion, and a length of the one or more seal members is 50% or more of a length in a circumferential direction of the outer peripheral surface provided with the one or more seal members.
    Type: Application
    Filed: August 16, 2023
    Publication date: August 1, 2024
    Applicant: SHOFU INC.
    Inventors: Shuhei TAKAHASHI, Satoshi FUJIWARA, Munehira TAKENAKA
  • Publication number: 20240238848
    Abstract: A substrate processing apparatus includes a support unit, a supply unit, an annular member, a rotation unit, a cover member, and an annular flow regulation member disposed above the cover member. The annular member includes an inclined surface inclined downward toward a center of the annular member in a radial direction. The flow regulation member includes a base portion and a protrusion which faces a circumferential portion of the substrate supported on the support unit and protrudes from the base portion toward the circumferential portion of the substrate. The protrusion overlaps the support unit when viewed in a vertical direction. A lower surface of the protrusion is positioned above an upper surface of the substrate supported on the support unit and positioned below an upper surface of the annular member. An inner circumferential surface of the protrusion is inclined radially outward from an upper side to a lower side.
    Type: Application
    Filed: January 11, 2024
    Publication date: July 18, 2024
    Inventors: Takafumi KINOSHITA, Yuki ITO, Daisuke SAIKI, Tomoyuki HASHIMOTO, Yoshifumi AMANO, Kazuhiro AIURA, Akira FUJITA, Shuhei TAKAHASHI
  • Publication number: 20240164868
    Abstract: To provide a zirconia mill blank for dental cutting and machining which has excellent machinability in a thin workpiece such as an inlay, an onlay and a veneer, and may impart high strength and high translucency to a zirconia perfect sintered body without a special sintering such as HIP treatment, and a preparing method thereof. The zirconia mill blank for dental cutting and machining has a porosity within a range of 15 to 30%.
    Type: Application
    Filed: January 26, 2024
    Publication date: May 23, 2024
    Applicant: SHOFU INC.
    Inventors: Kazumichi NONAKA, Shuhei TAKAHASHI
  • Patent number: 11986362
    Abstract: To provide a zirconia mill blank for dental cutting and machining which has excellent machinability in a thin workpiece such as an inlay, an onlay and a veneer, and may impart high strength and high translucency to a zirconia perfect sintered body without a special sintering such as HIP treatment, and a preparing method thereof. The zirconia mill blank for dental cutting and machining has a porosity within a range of 15 to 30%.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: May 21, 2024
    Assignee: SHOFU INC.
    Inventors: Kazumichi Nonaka, Shuhei Takahashi
  • Patent number: 11790436
    Abstract: Content with a desired layout is created easily and safely. The content management apparatus (3) includes a storage unit (32) for storing a plurality of parts constituting a part of the content, and a control unit (33) for creating the content by combining the plurality of parts which are respectively arranged at desired positions and selected from the storage unit (32). Here, the parts include system parts which are essential for displaying the content and are restricted from being edited by a business operator which is a user, and a design part, that is, an optional part which is created by the business operator who is a user and can be added arbitrarily. Then, the control unit 33 rearranges the system parts which are arranged at predetermined positions, and arranges the design part between the system parts to create the content.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: October 17, 2023
    Inventors: Yuko Fushimi, Yoshikazu Sueda, Takayuki Yasuhara, Satoshi Sakaue, Tetsuya Kawauchi, Mamoru Nagasue, Shuhei Takahashi
  • Patent number: 11693645
    Abstract: When configuration information regarding configurations of respective devices are received from electronic control units, the in-vehicle device generates a hash value based on data values of the configuration information, and transmits the hash value to a center device. The center device compares the hash value received from the in-vehicle device with a hash value of configuration information of the vehicle stored in a vehicle-side configuration information storage unit of the center device, and notifies the in-vehicle device of a full data transmission request for transmitting all data values of the configuration information when both of the hash values do not match each other. When the in-vehicle device is notified of the full data transmission request, the in-vehicle device transmits all of the data values of the configuration information to the center device.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: July 4, 2023
    Assignee: DENSO CORPORATION
    Inventors: Nao Sakurai, Shuhei Takahashi, Yuzo Harata, Kazuhiro Uehara, Takuya Hasegawa, Takuya Kawasaki, Kazuaki Hayakawa
  • Patent number: 11622840
    Abstract: To provide a liquid material which can only adjust transparency by applying on a part of a zirconia crown having high transparency, without coloring. The present disclosure provides an opaque imparting liquid used for a prosthesis device cut and machined from a dental zirconia for cutting and machining, comprising; (a) 10 to 39 wt. % of a water-soluble aluminum compound and/or a water-soluble lanthanum compound, (b) 60 to 89 wt. % of water, and (c) 1 to 20 wt. % of an organic solvent.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: April 11, 2023
    Assignee: SHOFU INC.
    Inventors: Toshio Kitamura, Shuhei Takahashi
  • Publication number: 20230082975
    Abstract: [Problem] A technique for improving translucency in order to prepare a zirconia sintered body having high translucency without using special equipment, has been required. [Solution] To provide A sintering method for a dental zirconia calcined body containing 5.5 mol % to 7.0 mol % of a stabilizer, wherein the method satisfies the following (a) to (c). (a) an average rate of temperature increase in the section from room temperature to 1300° C. is 9° C./min or more. (b) an average rate of temperature increase in the section from 1300° C. to 1400° C. is 0.6° C./min or more and 3° C./min or less. (c) an average rate of temperature increase in the section from 1400° C. to the maximum temperature of the sintering process is 0.5° C./min or more and 2.5° C./min or less.
    Type: Application
    Filed: May 31, 2022
    Publication date: March 16, 2023
    Applicant: SHOFU INC.
    Inventors: Kazumichi NONAKA, Shuhei TAKAHASHI