Patents by Inventor Tatsuya Fujita

Tatsuya Fujita 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: 20210036640
    Abstract: A machine learning apparatus for learning a correction parameter used in correction of a command value that controls a motor in a motor drive system including a plurality of kinds of correction functions includes: a state observation unit that observes, as a state variable, each of a feature calculated on the basis of drive data and the kind of any of the correction functions of the motor drive system and the correction parameter; and a learning unit that learns the correction parameter for each of the correction functions according to a training data set created on the basis of the state variable.
    Type: Application
    Filed: October 8, 2020
    Publication date: February 4, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tomoya FUJITA, Toshiaki KIMATA, Tatsuya ITO, Yukihiro IUCHI, Goh SATO
  • Patent number: 10895238
    Abstract: A starter for an internal combustion engine includes a rotating shaft formed with a helical spline on an outer periphery thereof and which rotates by a rotation of a motor, a pinion gear helically splined to the rotating shaft and movable in an axial direction of the rotating shaft along a tooth surface of the helical spline, a lever receiving member disposed opposing an end surface in an axial direction of the pinion gear, moved by receiving an axial pushing force by a pushing member, and causing the pinion gear to engage with a ring gear of the internal combustion engine by a movement thereof, and a buffer member for restricting a movement of the pinion gear in a rotational direction when the pinion gear moves along the teeth surface of the helical spline.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: January 19, 2021
    Assignee: DENSO CORPORATION
    Inventors: Tatsuya Fujita, Takashi Hirabayashi, Tasuku Yamada, Mitsuhiro Murata
  • Patent number: 10895239
    Abstract: To suppress generation of noise during cranking, a pinion gear is fixed to a drive shaft of a starter starting an internal combustion engine. The pinion gear rotates a ring gear provided to the internal combustion engine by meshing therewith. The pinion gear includes gear teeth and an annular hollow portion located radially inside of the gear teeth. The annular hollow portion accommodates a vibration absorber to absorb vibration generated in the gear tooth.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: January 19, 2021
    Assignee: DENSO CORPORATION
    Inventor: Tatsuya Fujita
  • Patent number: 10889570
    Abstract: The present invention provides novel benzazepine compounds of Formula (1), or salts thereof, having vasopressin V1a and V2 antagonisms, and medical uses thereof. In the formula, R1 is optionally substituted C1-6 alkyl, etc.; L is —C(?O)—NH—, etc.; Ring A1 is a hydrocarbon ring, etc.; Ring A2 is a hydrocarbon ring, etc.; and each of Rings A1 and A2 may have at least one substituent.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: January 12, 2021
    Assignee: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Keizo Kan, Masatoshi Takuwa, Hirotaka Tanaka, Hideto Fujiwara, Hokuto Yamabe, Satoshi Matsuda, Kazuhiro Ohdachi, Taiki Hanari, Yasuhiro Menjo, Tatsuya Urushima, Shigekazu Fujita
  • Patent number: 10892162
    Abstract: There is provided a method of forming a silicon film, which includes: a film forming step of forming the silicon film on a base, the silicon film having a film thickness thicker than a desired film thickness; and an etching step of reducing the film thickness of the silicon film by supplying an etching gas containing bromine or iodine to the silicon film.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: January 12, 2021
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Mitsuhiro Okada, Tatsuya Miyahara, Keisuke Fujita
  • Publication number: 20210001264
    Abstract: An ozone generating apparatus includes a first flow channel provided with a humidifying section that imparts moisture to oxygen gas and configured to discharge oxygen gas that has passed through the humidifying section, a second flow channel configured to discharge oxygen gas having a moisture content of 10 ppb or less, a confluence channel in which the oxygen gas discharged via the first flow channel and the oxygen gas discharged via the second flow channel join together, an ozone generator configured to generate ozone gas using, as a material, mixed oxygen gas of the oxygen gases that have joined in the confluence channel, and a flow rate ratio adjustment section configured to adjust a ratio between respective flow rates of the oxygen gas discharged from the first flow channel to the confluence channel and the oxygen gas discharged from the second flow channel to the confluence channel.
    Type: Application
    Filed: December 17, 2018
    Publication date: January 7, 2021
    Inventors: Tatsuya YAMAKAWA, Masaya YOSHIMURA, Ryo FUJITA
  • Publication number: 20200362806
    Abstract: A motor used for a starter of an internal combustion engine includes a motor shaft; a slide bearing that rotatably supports the motor shaft; and a bearing support member that supports the slide bearing. The motor shaft includes a concave portion or a convex portion extending in a direction orthogonal to an axial direction, the concave portion and the convex portion each includes a first surface and a second surface which face each other and the slide bearing is configured to be divided into a plurality of sections in a circumferential direction or the axial direction of the motor, the slide bearing serves as a regulation member that regulates a deviation of the motor shaft in the axial direction by an engagement between the slide bearing with the concave portion or the convex portion.
    Type: Application
    Filed: May 15, 2020
    Publication date: November 19, 2020
    Applicant: DENSO CORPORATION
    Inventors: Hiroyuki KUBO, Tatsuya FUJITA
  • Patent number: 10840840
    Abstract: A machine learning apparatus for learning a correction parameter used in correction of a command value that controls a motor in a motor drive system including a plurality of kinds of correction functions includes: a state observation unit that observes, as a state variable, each of a feature calculated on the basis of drive data and the kind of any of the correction functions of the motor drive system and the correction parameter; and a learning unit that learns the correction parameter for each of the correction functions according to a training data set created on the basis of the state variable.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: November 17, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tomoya Fujita, Toshiaki Kimata, Tatsuya Ito, Yukihiro Iuchi, Goh Sato
  • Patent number: 10828279
    Abstract: The present invention provides a drug capable of preventing or treating diabetic nephropathy. The present invention relates to a prophylactic and/or therapeutic drug for diabetic nephropathy, comprising a RAR? agonist as an active ingredient. The present invention also provides a prophylactic and/or therapeutic drug for renal anemia; a drug inhibiting the expression of type IV collagen in mesangial cells; a drug inhibiting the expression of BMP4 in mesangial cells; and a drug inhibiting fibrosis in the renal tubulointerstitium.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: November 10, 2020
    Assignees: HUBIT GENOMIX, INC., FUSO PHARMACEUTICAL INDUSTRIES, LTD.
    Inventors: Toshio Doi, Tatsuya Tominaga, Yui Fujita
  • Publication number: 20200340440
    Abstract: A brushed DC includes a housing, a motor shaft, a cap, a restricting member and a spacer. The housing has a cylindrical portion with an axial end surface. The motor shaft has a protruding portion protruding from the cylindrical portion of the housing and an annular groove formed in an outer circumferential surface of the protruding portion. The cap is mounted to the cylindrical portion of the housing with an opposing surface of the cap opposed to the axial end surface of the cylindrical portion. The restricting member is mounted in the groove of the motor shaft and fixed between the axial end surface and the opposing surface to restrict axial movement of the motor shaft. The spacer is interposed, in a state of having been plastically deformed in an axial direction of the motor shaft during the mounting of the cap, between the opposing surface and the restricting member.
    Type: Application
    Filed: April 24, 2020
    Publication date: October 29, 2020
    Applicant: DENSO CORPORATION
    Inventor: Tatsuya FUJITA
  • Patent number: 10800933
    Abstract: A surface treatment solution for a plated steel sheet to be hot-pressed comprising a ZnO aqueous dispersion (A) and a water dispersible organic resin (B), wherein the ZnO aqueous dispersion (A) comprises water and ZnO particle size having 50 to 300 nm particles, the water dispersible organic resin (B) has a 5 to 45 mgKOH/g acid value and 5 to 300 nm emulsion particle size, and a mass ratio (WA/WB) of a mass of ZnO particles in the ZnO aqueous dispersion (WA) to a mass of solid content of the water dispersible organic resin (WB) is 30/70 to 95/5.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: October 13, 2020
    Assignee: NIHON PARKERIZING CO., LTD.
    Inventors: Soshi Fujita, Jun Maki, Shintaro Yamanaka, Masao Kurosaki, Tatsuya Suzuki, Kensuke Mizuno, Takumi Kozaki, Takahiro Kodama
  • Publication number: 20200321323
    Abstract: A semiconductor composite device is provided that includes a voltage regulator, a package board, and a load, and converts an input DC voltage into a different DC voltage to supply the converted DC voltage to the load. The VR includes a semiconductor active element. The package board includes a C layer in which a capacitor is formed, and an L layer in which an inductor is formed. A plurality of through holes penetrate the C layer and the L layer in a direction perpendicular to the mounting face in the package board. The capacitor is connected to the load through the through hole. The inductor is connected to the load through the through hole and to the VR through the through hole.
    Type: Application
    Filed: June 22, 2020
    Publication date: October 8, 2020
    Inventors: Koshi Himeda, Tatsuya Kitamura, Chiharu Sakaki, Shinya Kiyono, Sho Fujita, Atsushi Yamamoto, Takeshi Furukawa, Kenji Nishiyama, Tatsuya Funaki, Kinya Aoki
  • Patent number: 10737391
    Abstract: A system includes: an illumination device; and an imaging device configured to capture an image of a target which is irradiated with light by the illumination device. The illumination device includes: a light emitting unit configured to emit first polarized light; a condensing unit configured to focus light emitted from the light emitting unit; a diffusion unit configured to diffuse the light focused by the condensing unit; and a uniformization optical system configured to receive the light diffused by the diffusion unit, uniformize an illuminance distribution of the light, and emit the light. The system further including a selective transmission unit provided on an optical path from the target to an imaging element of the imaging device and configured to block the first polarized light at a predetermined blocking ratio.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: August 11, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tatsuya Takahashi, Kazuhiro Fujita, Go Maruyama
  • Publication number: 20200230666
    Abstract: There is provided a cleaning method of a substrate processing apparatus comprising cleaning an inside of an exhaust pipe through which a gas of an inside of a processing container is exhausted. The cleaning the inside of the exhaust pipe includes: removing a deposit on a downstream side of an opening/closing valve in the exhaust pipe by supplying a first exhaust pipe cleaning gas containing fluorine to the downstream side of the opening/closing valve in the exhaust pipe in a state in which the opening/closing valve provided in a middle of the exhaust pipe is closed; and removing a deposit on an upstream side of the opening/closing valve in the exhaust pipe by supplying a second exhaust pipe cleaning gas not containing fluorine as a gas constituent element to the inside of the processing container in a state in which the opening/closing valve is opened.
    Type: Application
    Filed: January 16, 2020
    Publication date: July 23, 2020
    Inventors: Yoshihiro TAKEZAWA, Daisuke SUZUKI, Hiroyuki HAYASHI, Sena FUJITA, Tatsuya MIYAHARA, Jyunji ARIGA, Shinya KIKUCHI
  • Publication number: 20200224629
    Abstract: To suppress generation of noise during cranking, a pinion gear is fixed to a drive shaft of a starter starting an internal combustion engine. The pinion gear rotates a ring gear provided to the internal combustion engine by meshing therewith. The pinion gear includes gear teeth and an annular hollow portion located radially inside of the gear teeth. The annular hollow portion accommodates a vibration absorber to absorb vibration generated in the gear tooth.
    Type: Application
    Filed: December 10, 2019
    Publication date: July 16, 2020
    Applicant: DENSO CORPORATION
    Inventor: Tatsuya FUJITA
  • Patent number: 10703911
    Abstract: Organic colorant represented by General Formula (1) below: where in the General Formula (1), R1 and R2 each independently represent C1-C20 alkyl group, C1-C20 alkenyl group, phenyl group, naphthyl group, or group represented by —(CH2)n—COO—R3, —(CH2)n—R4, —(CH2)n—CONH—R5, —CR6R7—COO—R8, or —(CH2)n—OCOCH3; R3 represents hydrogen atom or C1-C2 alkyl group; R4 represents hydroxy group, C1-C2 alkoxy group, C2-C5 alkenyloxy group, SO3Na group, OSO3Na group, phenyl group, phenylalkyl group, naphthyl group, or naphthylalkyl group; R5 represents C1-C20 alkyl group, C1-C20 alkenyl group, or C1-C12 hydroxyalkyl group; R6 represents hydrogen atom or methyl group; R7 represents C1-C4 alkyl group; R8 represents C1-C5 alkyl group; and n is integer of from 1 to 12.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: July 7, 2020
    Assignees: Ricoh Company, Ltd., Tokyo University of Science Foundation
    Inventors: Takuya Fujita, Yoshimasa Miyazawa, Tatsuya Tomura, Masahiro Yanagisawa, Kiyofumi Nagai, Yukishige Kondo, Juki Migii
  • Patent number: 10696323
    Abstract: A steering control device includes a command value setting processing portion configured to set a current command value based on a detection value of steering torque; a feedback processing portion configured to control a voltage applied to a motor so as to control a current flowing through the motor to the current command value, based on an output value of an integral element obtained by using a difference between the current and the current command value; an end determination processing portion configured to determine whether a turning angle of steered wheels has reached a limit angle; and an end-time limit processing portion configured to perform correction to increase a magnitude of the difference, based on a degree of a decrease in a magnitude of a rotational speed of the motor when the end determination processing portion determines that the turning angle has reached the limit angle.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: June 30, 2020
    Assignees: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Takahiro Toko, Hiromasa Tamaki, Jun Hasegawa, Shohei Fujita, Kohei Yanai, Tatsuya Suzuki, Tatsuya Miyake, Takashi Suzuki
  • Publication number: 20200201158
    Abstract: A light source device comprising: a light source section which generates any one of blue light, red light, and green light; a phosphor which generates a fluorescence including the two colors other than the color of the light emitted from the light source section; a color-changing section which changes one of the two colors of the fluorescence emitted from the phosphor to another color regularly and irradiates it to the image-forming element; and a light path-switching section which switches a light path in which a fluorescence excited by the color light emitted from the light source section passes towards the color-changing section and a light path in which the color light emitted from the light source section passes towards the image-forming element regularly.
    Type: Application
    Filed: March 2, 2020
    Publication date: June 25, 2020
    Inventors: Ikuo Maeda, Kazuhiro Fujita, Toshiharu Murai, Tatsuya Takahashi, Takehiro Nishimori
  • Patent number: 10676611
    Abstract: The purpose of the present invention is to provide a prepreg which satisfies one of a)-c): a) having superior storage stability and capable of providing a fiber-reinforced composite material having superior mechanical properties; b) capable of providing a fiber-reinforced composite material having superior mechanical properties, and the obtained fiber-reinforced composite material has superior appearance quality; and c) having superior storage stability, generating less amount of heat when cured, and enabling the cure extent and the viscosity in the B-stage state to be flexibly controlled. To achieve the purpose, the present invention provides a prepreg including reinforced fibers and an epoxy resin composition which contains an epoxy resin and a curing agent represented by a specific chemical formula, and which satisfies a specific condition.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: June 9, 2020
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Eiki Takahashi, Daisuke Konishi, Noriyuki Hirano, Tatsuya Fujita, Shuji Udagawa
  • Patent number: 10663945
    Abstract: A numerical control device includes: a tool-side displacement measurement unit; a workpiece-side displacement measurement unit; a drive signal measurement unit; a relative displacement calculation unit between the tool and the workpiece; a relative displacement prediction unit calculating a relative displacement predicted value from the drive signal, from a prediction model representing a relationship between the drive signal and the relative displacement; a model parameter operation unit generating prediction model parameters constituting the prediction model, from the drive signal, the relative displacement, and the predicted value; and a command value correction unit outputting a post-correction position command obtained by correcting a position command to the drive unit using the prediction model parameters. The model parameter operation unit changes the prediction model parameters to reduce a difference between the relative displacement and the predicted value.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: May 26, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Toshiaki Kimata, Tomoya Fujita, Toshihiro Azuma, Tatsuya Ito