Patents by Inventor Hitoshi Ito

Hitoshi Ito 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: 11569766
    Abstract: A drive unit attached to a mobile entity is disclosed. The drive unit includes a motor, a first detector, and a controller. The first detector detects vehicle speed information regarding a vehicle speed of the mobile entity. The controller performs PWM control for the motor. The controller controls a duty cycle of a PWM signal in accordance with the vehicle speed information detected by the first detector.
    Type: Grant
    Filed: June 2, 2021
    Date of Patent: January 31, 2023
    Assignee: EXEDY CORPORATION
    Inventors: Junichi Ito, Hitoshi Katsura, Taichi Kitamura, Chika Baba
  • Publication number: 20230028313
    Abstract: A zirconia powder is provided comprising a yttria source and zirconia, wherein a content of the yttria source is 4.5 mol % or more and 6.5 mol % or less and the remainder is zirconia, a ratio of a total of tetragonal and cubic crystals to an entire crystal phase of zirconia is 90% or less, a BET specific surface area is 7.5 m2/g or more and 15 m2/g or less, and an average crystallite size is 325 ? or greater. The powders are useful in producing sintered bodies having the mechanical strength and the translucency desired for use in dental prosthetic materials, and precursors thereof.
    Type: Application
    Filed: September 14, 2022
    Publication date: January 26, 2023
    Applicant: TOSOH CORPORATION
    Inventors: Akiko ITO, Ayako WATANABE, Sho AZECHI, Hitoshi NAGAYAMA, Hiroyuki FUJISAKI
  • Patent number: 11552251
    Abstract: The compound represented by formula (1): wherein A, B, R1, and R2 are as defined in the description, provides organic electroluminescence (EL) devices having a high emission efficiency when operated at low voltage and a long lifetime and electronic devices including such organic EL devices.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: January 10, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Ryota Takahashi, Tomoki Kato, Hirokatsu Ito, Masahiro Kawamura, Masakazu Funahashi, Hiroyuki Saito, Yuichiro Kawamura, Yoshiaki Takahashi, Tetsuya Masuda, Hitoshi Kuma
  • Publication number: 20220365650
    Abstract: A touch panel includes arranged touch electrodes, and a driver IC connected to each of the touch electrodes. The plurality of touch electrodes is grouped into a plurality of groups such that electrodes belonging to different groups are included in a range smaller than an object to be detected, such as a finger. The driver IC alternately or sequentially applies a driving voltage to the touch electrodes of the plurality of groups, detects a capacitance of each of the sensor electrodes, and detects, based on the detected capacitance, whether there is a touch.
    Type: Application
    Filed: May 6, 2022
    Publication date: November 17, 2022
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Tsuyoshi ICHIRAKU, Yukihiro ITO, Hitoshi HIRATSUKA
  • Patent number: 11479511
    Abstract: A zirconia sintered body is provided and includes yttria and zirconia, containing yttria by a content ranging from 4.5 mol % or more to 6.5 mol % or less and zirconia as the remainder, the total light transmittance of a 1-mm thick sample measured in compliance with JIS K 7361-1 being 46.5% or higher, the three-point bending strength being 700 MPa or higher, and a ratio of an integrated value for the total light transmittance to an integrated value for the parallel light transmittance of a 1-mm thick sample measured at the measurement wavelength ranging from 400 to 700 nm being 1.3% or less.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: October 25, 2022
    Assignee: TOSOH CORPORATION
    Inventors: Akiko Ito, Ayako Watanabe, Sho Azechi, Hitoshi Nagayama, Hiroyuki Fujisaki
  • Patent number: 11460437
    Abstract: Provided are a device and a method for rapidly and simply detecting endotoxin without using an expensive reagent. The endotoxin detection device includes: a region containing an electrolyte solution; a partitioning member that partitions the region into two compartments such that the two compartments are in communication via a nanopore; a first electrode that is disposed in a first compartment; a second electrode that is disposed in a second compartment and is electrically connected to the first electrode; an electrolyte solution flow generating means that causes electrolyte solution in the first compartment to move to the second compartment via the nanopore; an application means that applies voltage between the first electrode and the second electrode; and a monitoring means that monitors current.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: October 4, 2022
    Assignee: TOHOKU UNIVERSITY
    Inventors: Takahiro Ito, Kumi Inoue, Kentaro Ito, Hitoshi Shiku, Tomokazu Matsue
  • Patent number: 11446784
    Abstract: The present invention relates to a chemical mechanical polishing (CMP) apparatus for polishing a workpiece, such as a metal body, to a mirror finish. The chemical mechanical polishing apparatus includes: a polishing pad (2) having an annular polishing surface (2a) which has a curved vertical cross-section; a workpiece holder (11) for holding a workpiece (W) having a polygonal shape; a rotating device (15) configured to rotate the workpiece holder (11) about an axis of the workpiece (W); a pressing device (14) configured to press a periphery of the workpiece (W) against the annular polishing surface (2a); and an operation controller (25) configured to change a speed at which the rotating device (15) rotates the workpiece (W) according to a rotation angle of the workpiece (W). The pressing device (14) is disposed more inwardly than the workpiece holder (11) in a radial direction of the polishing table (3).
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: September 20, 2022
    Assignees: EBARA CORPORATION, FUJIMI INCORPORATED
    Inventors: Yu Ishii, Kenya Ito, Hitoshi Morinaga, Kazusei Tamai, Shingo Ohtsuki, Hiroshi Asano
  • Patent number: 11441465
    Abstract: An exhaust gas purification device is disposed in an exhaust passage of an engine disposed in an engine room defined in a hull, and is configured to remove at least a nitrogen oxide from an exhaust gas discharged from the engine. The exhaust gas purification device includes: a catalytic part including a selective reducing catalyst for selectively reducing the nitrogen oxide; a reducing agent addition device configured to add a reducing agent to the exhaust gas on an upstream side of the catalytic part in a flow direction of the exhaust gas; and a casing configured to contain the catalytic part. At least a part of the casing is disposed inside the engine room.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: September 13, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Takehiko Kakizakai, Toshihiro Fujii, Hitoshi Ito, Akira Otaki, Tomohide Hashiguchi, Shintaro Ide
  • Publication number: 20220278283
    Abstract: The compound represented by formula (1): wherein A, B, R1, and R2 are as defined in the description, provides organic electroluminescence (EL) devices having a high emission efficiency when operated at low voltage and a long lifetime and electronic devices including such organic EL devices.
    Type: Application
    Filed: April 29, 2022
    Publication date: September 1, 2022
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Ryota TAKAHASHI, Tomoki KATO, Hirokatsu ITO, Masahiro KAWAMURA, Masakazu FUNAHASHI, Hiroyuki SAITO, Yuichiro KAWAMURA, Yoshiaki TAKAHASHI, Tetsuya MASUDA, Hitoshi KUMA
  • Publication number: 20220231644
    Abstract: A semiconductor device that functions as a relay station and is reduced in size is provided. The semiconductor device includes an operational amplifier, a first transistor and a first capacitor that are electrically connected to a first input side of the operational amplifier, and a first resistor and a second resistor that are electrically connected to a second input side. The second resistor is electrically connected to an output side of the operational amplifier, a gate of the first transistor is electrically connected to a first power supply, the first resistor is electrically connected to a second power supply, and at least a transistor included in the operational amplifier has a region overlapping with the first transistor.
    Type: Application
    Filed: May 22, 2020
    Publication date: July 21, 2022
    Inventors: Minato ITO, Hitoshi KUNITAKE, Takayuki IKEDA
  • Publication number: 20220222881
    Abstract: A video display device for displaying a video of distributed content and an avatar, which is a computer-generated image, on a display screen to overlap each other, includes: a communication processing unit connected to a network; an avatar generation processing unit that generates an avatar of another person from avatar information received through the communication processing unit; a movement information detection processing unit that detects movement information of a continuous movement associated with the video of the content received through the communication processing unit; a display unit that displays the content received through the communication processing unit; and a control unit. The avatar generation processing unit generates an avatar by adding the movement information detected by the movement information detection processing unit to a movement of the generated avatar.
    Type: Application
    Filed: April 17, 2019
    Publication date: July 14, 2022
    Inventors: Mayumi Nakade, Osamu KAWAMAE, Hitoshi AKIYAMA, Tamotsu ITO
  • Patent number: 11060610
    Abstract: A multistage shaft sealing apparatus includes a first sealing unit, a second sealing unit, and a third sealing unit provided, in a sequential order from a side of the apparatus closer to inside of the apparatus, in a fluid leakage passage formed between the rotating shaft or the rotating member and a housing located to surround the rotating shaft or the rotating member. The first sealing unit includes a first runner and a first sealing ring which form a non-contact-type sealing surface; the second sealing unit includes a second runner and a second sealing ring which form a contact-type sealing surface; the third sealing unit includes a third runner and a third sealing ring which form a contact-type sealing surface, and a purge water supply passage supplying purge water to the third sealing unit and a purge water discharge passage discharging the purge water supplied to the third sealing unit.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: July 13, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takanobu Otani, Hiroshi Kuzumi, Hiroyuki Tokumasu, Toshihiko Matsuo, Yasuhiro Ikeda, Hitoshi Ito, Yasushi Takayama, Tomoki Hanada
  • Publication number: 20210172362
    Abstract: An exhaust gas purification device is disposed in an exhaust passage of an engine disposed in an engine room defined in a hull, and is configured to remove at least a nitrogen oxide from an exhaust gas discharged from the engine. The exhaust gas purification device includes: a catalytic part including a selective reducing catalyst for selectively reducing the nitrogen oxide; a reducing agent addition device configured to add a reducing agent to the exhaust gas on an upstream side of the catalytic part in a flow direction of the exhaust gas; and a casing configured to contain the catalytic part. At least a part of the casing is disposed inside the engine room.
    Type: Application
    Filed: August 29, 2019
    Publication date: June 10, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Takehiko KAKIZAKAI, Toshihiro FUJII, Hitoshi ITO, Akira OTAKI, Tomohide HASHIGUCHI, Shintaro IDE
  • Patent number: 10688031
    Abstract: The present invention provides a low-toxicity sophorolipid-containing composition. The low-toxicity sophorolipid-containing composition contains at least a coloring component, an acidic sophorolipid, a fatty acid, and a hydroxy fatty acid that are derived from an SL-producing yeast culture. The composition contains the following components in the following proportions, in terms of dry weight, based on the total amount of the acidic sophorolipid, a lactonic sophorolipid, the fatty acid, and the hydroxy fatty acid in the composition taken as 100 mass %: (1) acidic sophorolipid: 94 to 99.99 mass %, (2) lactonic sophorolipid: 0 to 2 mass %, (3) total amount of fatty acid and hydroxy fatty acid: 0.01 to 4 mass %.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: June 23, 2020
    Assignee: Saraya Co., Ltd.
    Inventors: Hitoshi Ito, Michiaki Araki, Yoshihiko Hirata
  • Publication number: 20190301607
    Abstract: A multistage shaft sealing apparatus includes a first sealing unit, a second sealing unit, and a third sealing unit provided, in a sequential order from a side of the apparatus closer to inside of the apparatus, in a fluid leakage passage formed between the rotating shaft or the rotating member and a housing located to surround the rotating shaft or the rotating member. The first sealing unit includes a first runner and a first sealing ring which form a non-contact-type sealing surface; the second sealing unit includes a second runner and a second sealing ring which form a contact-type sealing surface; the third sealing unit includes a third runner and a third sealing ring which form a contact-type sealing surface, and a purge water supply passage supplying purge water to the third sealing unit and a purge water discharge passage discharging the purge water supplied to the third sealing unit.
    Type: Application
    Filed: February 7, 2019
    Publication date: October 3, 2019
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takanobu Otani, Hiroshi Kuzumi, Hiroyuki Tokumasu, Toshihiko Matsuo, Yasuhiro Ikeda, Hitoshi Ito, Yasushi Takayama, Tomoki Hanada
  • Patent number: 10311984
    Abstract: The shaft sealing structure includes a seal ring that has abutment portions formed by dividing the seal ring along the axial direction and that is provided around a main shaft in a ring-like manner; a support member that is provided in the seal ring along the circumferential direction of the main shaft; and a thermoswitch that is connected to the support member between the abutment portions and that presses the support member toward the center of the main shaft when the temperature rises to a temperature higher than that during normal operation, in which the seal ring is fixed at a position separated from the main shaft during the normal operation and is moved by the support member toward the center of the main shaft when the temperature rises to a temperature higher than that during the normal operation.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: June 4, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Kentarou Saeki, Hidekazu Uehara, Akihiko Umeda, Masaru Sakai, Hiroshi Kuzumi, Yasuhiro Ikeda, Toshihiko Matsuo, Takanobu Otani, Hiroomi Sakuma, Hitoshi Ito, Yasushi Takayama, Tomoki Hanada, Yuji Harada
  • Patent number: 10065982
    Abstract: The present invention provides a high-purity acid-form sophorolipid (SL)-containing composition characterized by substantially not containing acetic acid. The high-purity acid-form SL-containing composition can be produced, for example, by the following method: (i) adjusting the pH of a partially purified acid-form SL-containing composition to an acidic range; and (ii-a) subjecting an acidified partially purified acid-form SL-containing composition obtained in step (i) to chromatography to acquire a fraction containing an acid-form SL, or (ii-b) leaving the acidified partially purified acid-form SL-containing composition obtained in step (i) to stand under a low-temperature condition to acquire a resulting gelled object.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: September 4, 2018
    Assignee: Saraya Co., Ltd.
    Inventors: Yoshihiko Hirata, Mizuyuki Ryu, Hitoshi Ito, Michiaki Araki
  • Publication number: 20160324747
    Abstract: The present invention provides a low-toxicity sophorolipid-containing composition. The low-toxicity sophorolipid-containing composition contains at least a coloring component, an acidic sophorolipid, a fatty acid, and a hydroxy fatty acid that are derived from an SL-producing yeast culture. The composition contains the following components in the following proportions, in terms of dry weight, based on the total amount of the acidic sophorolipid, a lactonic sophorolipid, the fatty acid, and the hydroxy fatty acid in the composition taken as 100 mass %: (1) acidic sophorolipid: 94 to 99.99 mass %, (2) lactonic sophorolipid: 0 to 2 mass %, (3) total amount of fatty acid and hydroxy fatty acid: 0.
    Type: Application
    Filed: March 4, 2016
    Publication date: November 10, 2016
    Applicant: Saraya Co., Ltd.
    Inventors: Hitoshi Ito, Michiaki Araki, Yoshihiko Hirata
  • Patent number: 9308229
    Abstract: A method of inhibiting angiogenesis by applying a kind of protein polysaccharide of a (1?6)-?-D-glucan obtained from a residue of extraction of crushed dried fruiting body of Agaricus blazei Murill (himematsutake) with 80% ethanol aqueous solution and hot water at 100 degrees C.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: April 12, 2016
    Assignees: Powerful Healthy Food Corporation, Sun Chlorella Corp.
    Inventors: Hitoshi Ito, Hiroko Itoh, Masaki Fujishima, Yukari Arakawa, Fukuyoshi Nakada
  • Publication number: 20150359829
    Abstract: A method of inhibiting angiogenesis by applying a kind of protein polysaccharide of a (1?6)-?-D-glucan obtained from a residue of extraction of crushed dried fruiting body of Agaricus blazei Murill (himematsutake) with 80% ethanol aqueous solution and hot water at 100 degrees C.
    Type: Application
    Filed: August 24, 2015
    Publication date: December 17, 2015
    Inventors: Hitoshi ITO, Hiroko ITOH, Masaki FUJISHIMA, Yukari ARAKAWA, Fukuyoshi NAKADA