Patents by Inventor Yoshiaki Kato

Yoshiaki 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).

  • Patent number: 11143862
    Abstract: An exposure device that draws a pattern on a substrate by shining a beam from a light source device on substrate and scanning the beam in a main scanning direction while varying the intensity of beam according to pattern information, including: a scanning unit having a beam scanning unit that includes a polygonal mirror whereby the beam is oriented to scan the beam, and light detector for photoelectric detection of reflected light generated when beam is shined on substrate; an electro-optical element for controlling the beam's intensity modulation according to pattern information such that at least part of second pattern to be newly drawn is drawn on top of at least part of first pattern formed on substrate; and a measurement unit measuring relative positional relationship between the first and second pattern on the basis of a detection signal output by the detector while second pattern is drawn on substrate.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: October 12, 2021
    Assignee: NIKON CORPORATION
    Inventors: Yoshiaki Kito, Masakazu Hori, Yosuke Hayashida, Masaki Kato
  • Patent number: 11130194
    Abstract: The friction stir welding tool member according to the present invention is made of a ceramic member in which a shoulder portion and a probe portion are integrally formed, wherein a root portion of the probe portion and an end portion of the shoulder portion have a curved surface shape; and the friction stir welding tool member has a ratio (R1/D) of 0.02 or more and 0.20 or less when a curvature radius of the end portion of the shoulder portion is defined as R1 (mm) and an outer diameter of the shoulder portion is defined as D (mm). In addition, the ceramic member is preferably made of a silicon nitride sintered body having a Vickers hardness of 1400 HV1 or more. According to the above-described configuration, a friction stir welding tool member having excellent durability can be provided.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: September 28, 2021
    Assignees: OSAKA UNIVERSITY, TOSHIBA MATERIALS CO., LTD.
    Inventors: Hidetoshi Fujii, Yoshiaki Morisada, Kai Funaki, Isao Ikeda, Yutaka Abe, Masahiro Kato
  • Publication number: 20210293667
    Abstract: To provide a technology for obtaining a desired particle. The present technology provides a particle obtaining method including a particle capturing step of capturing a particle in a well, a sealing step of sealing the well with a sheet, and a particle obtaining step of obtaining the particle from a selected well after the sealing step. Furthermore, the present technology also provides a particle capturing chamber provided with a particle capturing unit including at least one well for capturing a particle therein, and a sealing unit including a sheet for sealing the well, in which a distance between the well and the sheet is adjustable.
    Type: Application
    Filed: May 23, 2019
    Publication date: September 23, 2021
    Inventors: TASUKU YOTORIYAMA, KENSUKE KOJIMA, YOSHIAKI KATO, SHIN MASUHARA
  • Publication number: 20210285358
    Abstract: An exhaust-gas purification system of an internal combustion engine includes an electrically heated catalytic device and a three-way catalytic device. The electrically heated catalytic device includes a first honeycomb base having a large number of honeycomb passages and a first catalyst component that is supported on, by a predetermined thin-film treatment, surfaces that define the honeycomb passages and that contains one or more types of noble metals. The three-way catalytic device includes a second honeycomb base having a large number of honeycomb passages and a second catalyst component that is supported on surfaces defining the honeycomb passages and that contains one or more types of noble metals. The total noble metal content per unit volume of the second honeycomb base is higher than the total noble metal content per unit volume of the first honeycomb base.
    Type: Application
    Filed: March 5, 2021
    Publication date: September 16, 2021
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Yoshiaki Hatakeyama, Hiroki Takeori, Tetsuo Endo, Shun Kato
  • Patent number: 11112598
    Abstract: An exposure device that draws a pattern on a substrate by shining a beam from a light source device on substrate and scanning the beam in a main scanning direction while varying the intensity of beam according to pattern information, including: a scanning unit having a beam scanning unit that includes a polygonal mirror whereby the beam is oriented to scan the beam, and light detector for photoelectric detection of reflected light generated when beam is shined on substrate; an electro-optical element for controlling the beam's intensity modulation according to pattern information such that at least part of second pattern to be newly drawn is drawn on top of at least part of first pattern formed on substrate; and a measurement unit measuring relative positional relationship between the first and second pattern on the basis of a detection signal output by the detector while second pattern is drawn on substrate.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: September 7, 2021
    Assignee: NIKON CORPORATION
    Inventors: Yoshiaki Kito, Masakazu Hori, Yosuke Hayashida, Masaki Kato
  • Patent number: 11112779
    Abstract: A facility that includes machines, includes a camera generating facility operation data, which includes an image of any given space. A computer system comprises: a data obtaining module obtaining the facility operation data; a work identification module identifying work that is performed in the facility, based on the image included in the facility operation data; and an output module outputting time-series information indicating a flow of the work. The work identification module identifies an object included in the image; identifies the work based on information about the identified object; and generates work analysis data, which associates the identified work, a period in which the identified work has been performed, and machines that is related to the identified work with one another. The output module outputs the time-series information or statistical information by using the work analysis data.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: September 7, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Akinori Yokoi, Itoe Akutsu, Kana Oki, Yoshiaki Kato
  • Patent number: 11107849
    Abstract: A photoelectric conversion element according to an embodiment of the disclosure includes a first electrode and a second electrode that are disposed to face each other and a photoelectric conversion layer that is provided between the first electrode and the second electrode, and contains at least a subphthalocyanine or a subphthalocyanine derivative, and a carrier dopant, in which the carrier dopant has a concentration of less than 1% by volume ratio to the subphthalocyanine or the subphthalocyanine derivative.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: August 31, 2021
    Assignee: SONY CORPORATION
    Inventors: Yu Kato, Ichiro Takemura, Yoshiaki Obana, Nobuyuki Matsuzawa
  • Patent number: 11105656
    Abstract: Scale pattern in a scale of an optical encoder includes a first scale mark that blocks a first light from being guided to an image capturer and guides a second light to the image capturer, and a second scale mark that guides the first light and the second light to the image capturer. Second scale mark is arranged in an ABS pattern and the first scale mark is arranged in an INC pattern by incorporating the second scale mark. Image capturer includes a first image capturing section that captures an image of the ABS pattern from the first light that arrives via the second scale mark, and a second image capturing section that captures an image of the INC pattern from the second light that arrives via the first scale mark and the second scale mark. Calculator calculates a position of a head relative to the scale.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: August 31, 2021
    Assignee: MITUTOYO CORPORATION
    Inventor: Yoshiaki Kato
  • Patent number: 11097374
    Abstract: The friction stir welding tool member according to the present invention is made of a silicon nitride sintered body, wherein the silicon nitride sintered body contains 15% by mass or less of additive components except silicon nitride in such a manner that the additive components include at least one element selected from lanthanoid elements and at least one element selected from Mg, Ti, Hf, and Mo. In addition, it is preferable that the additive components further include at least one element selected from Al, Si, and C. According to the above-described configuration, a friction stir welding tool member having an excellent durability can be provided.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: August 24, 2021
    Assignees: OSAKA UNIVERSITY, TOSHIBA MATERIALS CO., LTD.
    Inventors: Hidetoshi Fujii, Yoshiaki Morisada, Kai Funaki, Isao Ikeda, Yutaka Abe, Masahiro Kato
  • Patent number: 11054287
    Abstract: There is provided a signal processing method, for a photoelectric encoder, capable of correctly determining a bright part and a dark part of a bright/dark pattern having distorted light intensity distribution by setting an appropriate threshold. A detector unit includes a light source, a light-receiving detector that receives transmitted light from a scale to acquire a bright/dark image, and a lens arranged between the light source and the light-receiving detector. The detector unit classifies the bright/dark image acquired by the light-receiving detector into an image-forming region corresponding to a center region of the lens and a non-image-forming region corresponding to a region except for the center region of the lens, calculates a representative value reflecting a light intensity of the image-forming region, and obtains a pre-processed bright/dark image in which the light intensity of the non-image-forming region is replaced with the representative value.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: July 6, 2021
    Assignee: MITUTOYO CORPORATION
    Inventor: Yoshiaki Kato
  • Publication number: 20210140799
    Abstract: A scale capable of maintaining measurement accuracy even if the pattern of the scale pattern is scratched is provided. The scale 2 comprises a scale pattern 4 having a plurality of unit patterns provided at a predetermined pitch along the measurement direction on a surface thereof. At least one of the plurality of unit patterns comprises a plurality of loop portions 8 formed with conductors in a loop shape. The plurality of loop portions 8 included in the unit pattern are arranged so as to be spaced from each other such that the centers of gravity of the loop portions 8 are at the same position in the measurement direction on the surface of the scale 2. Thereby, the plurality of loop portions 8 included in the unit pattern can prevent deviation of the center of gravity of the magnetic flux distribution in the measurement direction, even if any of the plurality of the loop portions 8 is scratched. Therefore, the scale 2 can maintain the measurement accuracy.
    Type: Application
    Filed: October 28, 2020
    Publication date: May 13, 2021
    Inventor: Yoshiaki Kato
  • Patent number: 11001714
    Abstract: A production method for an electronic material filler includes: a preparation step of preparing a silica particle material produced by a dry method; and a first surface treatment step of performing surface treatment on the silica particle material with a silane compound having a vinyl group, a phenyl group, a phenylamino group, an alkyl group having four or more carbon atoms, a methacryl group, or an epoxy group, to obtain a first surface treatment-processed particle material. After the silica particle material is produced by the dry method, the silica particle material is not brought into contact with liquid water, and has a particle diameter of 100 nm to 600 nm or a specific surface area of 5 m2/g to 35 m2/g.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: May 11, 2021
    Assignee: ADMATECHS CO., LTD.
    Inventors: Yusuke Watanabe, Nobutaka Tomita, Yoshiaki Kato
  • Patent number: 10919035
    Abstract: According to some aspects, a microfluidic device is provided, comprising a sample holding chamber; and at least one flow path connected to the sample holding chamber configured to supply liquid into the sample holding chamber, wherein the sample holding chamber includes a first inner surface; and a light irradiation region intersecting the first inner surface and configured to receive light from outside of the sample holding chamber to irradiate liquid inside the sample holding chamber, wherein the first inner surface includes at least one recess shaped so as to contain gas bubbles present within the liquid, and wherein the at least one recess is located outside of the light irradiation region.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: February 16, 2021
    Assignee: Sony Corporation
    Inventors: Shin Masuhara, Yoshiaki Kato, Ryousuke Minami, Toshio Watanabe
  • Patent number: 10907995
    Abstract: There is provided an electromagnetic inductive encoder that allows reduction in the number of tracks on a scale for reduction in the size of the scale. The electromagnetic inductive encoder includes a scale having a scale pattern, a head, and computation unit. The head includes transmission unit, which includes transmission coils, and reception unit, which includes reception coils. The scale pattern has a first pattern, which causes the reception coils to receive positive current, and a second pattern, which causes the reception coils to receive negative current.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: February 2, 2021
    Assignee: MITUTOYO CORPORATION
    Inventor: Yoshiaki Kato
  • Publication number: 20210005106
    Abstract: A walking training apparatus is a motion support system that includes a walking assistance apparatus as an assistance apparatus, a selected assistance level setting unit, a load data acquisition unit, an angle sensor as a displacement sensor, and an overall control unit as a control unit. The assistance apparatus assists a motion of a joint performed by a user. The assistance level setting unit sets an assistance level that is a level of a force exerted by the assistance apparatus. The load data acquisition unit acquires load data related to a load of the assistance apparatus. The displacement sensor detects a displacement of the joint. The control unit determines a recommended assistance level, which is an assistance level to be recommended, based on the assistance level, the load data, and an output of the displacement sensor, and outputs information about the determined recommended assistance level.
    Type: Application
    Filed: June 22, 2020
    Publication date: January 7, 2021
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Nobuhisa Otsuki, Yoshiaki Kato, Issei Nakashima, Manabu Yamamoto, Hiroaki Daba, Taiga Matsumoto
  • Publication number: 20200411450
    Abstract: Disclosed herein are methods for making a thin film device and/or for reducing warp in a thin film device, the methods comprising applying at least one metal film to a convex surface of a glass substrate, wherein the glass substrate is substantially dome-shaped. Other methods disclosed include methods of determining the concavity of a glass sheet. The method includes determining the orientation of the concavity and measuring a magnitude of the edge lift of the sheet when the sheet is supported by a flat surface and acted upon by gravity. Thin film devices made according to these methods and display devices comprising such thin film devices are also disclosed herein.
    Type: Application
    Filed: May 8, 2020
    Publication date: December 31, 2020
    Inventors: John Steele Abbott, III, Takashi Atsumi, Ahdi El-Kahlout, Yoshiki Goto, Steven Francis Hoysan, Chien Yu Hsu, Shinichi Ii, Kiat Chyai Kang, Yoshiaki Kato, Shawn Rachelle Markham, Timothy John O'Driscoll, Christian Lucien Stauter
  • Publication number: 20200406452
    Abstract: A workpiece transport apparatus for transporting a workpiece includes: a hand device; a moving device that includes a movable part mounted with the hand device and that includes at least one drive axis configured to operate the movable part; a current measurement section configured to measure a current value of a motor that drives the drive axis; and a workpiece number detection section configured to detect that a number of workpieces held by the hand device is different from an expected number based on a comparison result between the current value measured by the current measurement section when the hand device holds the workpiece, and a predetermined threshold value.
    Type: Application
    Filed: June 18, 2020
    Publication date: December 31, 2020
    Applicant: Fanuc Corporation
    Inventor: Yoshiaki Kato
  • Patent number: 10851246
    Abstract: A production method for an electronic material filler includes: a preparation step of preparing a silica particle material produced by a dry method; and a first surface treatment step of performing surface treatment on the silica particle material with a silane compound having a vinyl group, a phenyl group, a phenylamino group, an alkyl group having four or more carbon atoms, a methacryl group, or an epoxy group, to obtain a first surface treatment-processed particle material. After the silica particle material is produced by the dry method, the silica particle material is not brought into contact with liquid water, and has a particle diameter of 100 nm to 600 nm or a specific surface area of 5 m2/g to 35 m2/g.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: December 1, 2020
    Assignee: ADMATECHS CO., LTD.
    Inventors: Yusuke Watanabe, Nobutaka Tomita, Yoshiaki Kato
  • Publication number: 20200339468
    Abstract: Described herein are alkali-free, boroalumino silicate glasses exhibiting desirable physical and chemical properties for use as substrates in flat panel display devices, such as, active matrix liquid crystal displays (AMLCDs) and active matrix organic light emitting diode displays (AMOLEDs). In accordance with certain of its aspects, the glasses possess good dimensional stability as a function of temperature.
    Type: Application
    Filed: July 9, 2020
    Publication date: October 29, 2020
    Inventors: Adam James Ellison, Sinue Gomez, Yoshiaki Kato
  • Patent number: 10816330
    Abstract: A head provided to a shape measuring apparatus includes a translucent stylus head that displaces integrally with a light source and a photoreceiver, and is arranged between the light source and the photoreceiver. The stylus head includes an incident portion that causes the light from the light source to be incident on an interior of the stylus head, a reflection portion that totally reflects the incident light, and a light emission portion that emits the light that is totally reflected toward the photoreceiver. Evanescent light is generated at the measurement surface by the light that is totally reflected by the total reflection surface. The stylus head brings the measurement surface and a surface of a measurable object to face each other, separates the measurement surface from the surface of the measurable object, and is arranged such that the evanescent light reaches the surface of the measurable object.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: October 27, 2020
    Assignee: MITUTOYO CORPORATION
    Inventor: Yoshiaki Kato