Patents by Inventor Akira Yoshida

Akira Yoshida 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: 20210009516
    Abstract: An object is to provide a method for easily producing maleimide (MI) in which trace amounts of residual acid components as impurities in a crude MI are efficiently reduced, that is, the acid value is sufficiently reduced. <1> A method for producing purified MI, comprising reducing an acid value of crude MI by 50% or more, by adding carbodiimide (CDI) to a solution comprising the crude MI to react an acid component in the crude MI with the CDI. <2> The method for producing purified MI, comprising adding 0.5% by mass or more and 8% by mass or less of the CDI with respect to a mass of the crude MI for reaction. <3> The method for producing purified MI, wherein the CDI is N,N?-diisopropyl carbodiimide (DIC). <4> The method for producing purified MI, comprising removing a urea derivative of the CDI (CDI-U) by-produced when reacting the acid component in the crude MI with the CDI.
    Type: Application
    Filed: September 29, 2020
    Publication date: January 14, 2021
    Applicant: UNITIKA LTD.
    Inventors: Yuki Yamada, Tatsuya Morikita, Yosuke Sugimoto, Takeshi Yoshida, Akira Shigeta, Yoshiaki Echigo
  • Publication number: 20210001557
    Abstract: A method for producing a three-dimensional shaped product that employs a shaping method based on dispersion of powder by a squeegee and irradiation onto a powder layer with a laser beam or electron beam, includes the following steps: 1. Setting an upper limit value and lower limit value for the amount of circulation passing through an anemometer, and an adjusting value within this range; 2. Measuring the amount of circulation and effecting control as follows: (1) When the measured value is between the upper limit value and lower limit value, the rotational speed of the blower fan is maintained, and (2) When the measured value has fallen below the lower limit value due to clogging of a filter, the rotational speed of the fan is increased and the rotational speed is selected at the stage where the measured value has reached the adjusting value, and the rotational speed is maintained.
    Type: Application
    Filed: March 27, 2020
    Publication date: January 7, 2021
    Inventors: Koichi Amaya, Mitsuyoshi Yoshida, Seiichi Tomita, Akira Takizawa, Akishige Nishikawa
  • Patent number: 10860108
    Abstract: A tactile sense presentation apparatus includes a movable body, an actuator unit, and a signal generation unit. The actuator unit is connected to the movable body. The signal generation unit is configured to supply a driving signal to the actuator unit, the driving signal generating a vibration on the actuator unit, the vibration having within a period at least one of a plurality of different amplitudes and a plurality of different frequencies.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: December 8, 2020
    Assignee: Sony Corporation
    Inventors: Akira Ono, Hiroshi Yoshida, Mikio Takenaka
  • Publication number: 20200381669
    Abstract: A display device, to provide compensation for change in color level due to different viewing directions of a display surface and compensation for other optical characteristics of the display surface in a compatible manner, includes a light-emitting element layer including a light-emitting layer including a light-emitting element, a first electrode disposed below the light-emitting layer, and a second electrode disposed above the light-emitting layer, wherein an optical compensation layer is disposed above the light-emitting element layer, the optical compensation layer being configured to compensate for prevention of external light reflection on a display surface and compensate for change in color level of the display surface due to different viewing directions of the display surface.
    Type: Application
    Filed: November 30, 2017
    Publication date: December 3, 2020
    Inventors: HIDEFUMI YOSHIDA, KIYOSHI MINOURA, TOKIYOSHI UMEDA, KAORU ABE, AKIRA SAKAI
  • Publication number: 20200379282
    Abstract: A photo-aligning exposure device that performs a photo-aligning process by performing scanning exposure on an irradiated plane in one direction includes: a light source that emits scattering light toward the irradiated plane; an optical filter that selectively emits an ultraviolet ray out of the light emitted from the light source; and an irradiation angle restriction member that selectively emits light with which irradiation is diagonally performed with respect to the scanning direction out of the light emitted from the optical filter. The irradiation angle restriction member has a plurality of flat-plate-shaped light direction restriction plates slanted at a certain angle with respect to the irradiated plane and arrayed in parallel along the scanning direction at a predetermined distance.
    Type: Application
    Filed: August 6, 2018
    Publication date: December 3, 2020
    Applicants: V TECHNOLOGY CO., LTD., SHARP KABUSHIKI KAISHA
    Inventors: Yuji Yoshida, Satoshi Ikeda, Toshinari Arai, Isamu Miyake, Takashi Katayama, Akira Hirai
  • Publication number: 20200377249
    Abstract: The present invention bonds a label to an adherend with a heat-sensitive adhesive layer disposed therebetween, by sufficiently activating the heat-sensitive adhesive layer. Prepared is a label which comprises a label base and a heat-sensitive adhesive layer disposed on the back surface of the label base, wherein an ultraviolet-absorbing heating agent is contained in an area of the label base which at least includes the disposed heat-sensitive adhesive layer and/or in the heat-sensitive adhesive layer. Before or after the label is applied to an adherend, irradiation with ultraviolet is conducted to activate the heat-sensitive adhesive layer.
    Type: Application
    Filed: August 17, 2020
    Publication date: December 3, 2020
    Inventors: Gosuke Matsunaga, Akira Miyazaki, Nao Yoshida, Yukitoshi Etani
  • Patent number: 10850606
    Abstract: A flange main body as a cover member for a fuel tank includes a cover plate for closing an opening of the fuel tank, an accommodating tubular portion formed as part of the cover plate so as to extend through the plate in a plate thickness direction, and a rib formed at the cover plate. The accommodating tubular portion and the rib are formed to be non-contiguous.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: December 1, 2020
    Assignee: Aisan Kogyo Kabushiki Kaisha
    Inventors: Kensuke Niwa, Koji Yoshida, Akira Iida, Shinya Higashi, Morihiro Takemura, Hiroyasu Kariya, Tatsuki Fukui, Takuhito Fujiwara, Takeaki Morizono, Takehiro Yamauchi
  • Patent number: 10856451
    Abstract: A display-equipped controller includes a display device, a first junction configured to electrically connect the display device and a main board, a radiator disposed opposite from the display device with respect to the main board, an attaching structure attaching the main board and the radiator to the display device, a support structure disposed between the display device and the main board and configured to detachably support a control board, and a second junction configured to electrically connect the main board and the control board supported by the support structure.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: December 1, 2020
    Assignee: FANUC CORPORATION
    Inventors: Kouhei Yoshida, Yasumichi Sakoda, Akira Koizumi
  • Patent number: 10844466
    Abstract: There is provided a hot forging steel including, by mass %, C: more than 0.30% and less than 0.60%, Si: 0.10% to 0.90%, Mn: 0.50% to 2.00%, S: 0.010% to 0.100%, Cr: 0.01% to 1.00%, Al: more than 0.005% and 0.100% or less, N: 0.0030% to 0.0200%, Bi: more than 0.0001% and 0.0050% or less, Ti: 0% or more and less than 0.040%, V: 0% to 0.30%, Ca: 0% to 0.0040%, Pb: 0% to 0.40%, and a remainder including Fe and impurities, in which P and O in the impurities are respectively P: 0.050% or less and O: 0.0050% or less, an expression d+3?<20 is satisfied, and a presence density of MnS having an equivalent circle diameter of smaller than 2.0 ?m is 300 pieces/mm2 or more in a cross section parallel to a rolling direction of a steel.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: November 24, 2020
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Akira Shiga, Suguru Yoshida, Manabu Kubota, Hajime Hasegawa, Hideo Mizukami
  • Publication number: 20200362060
    Abstract: There are provided a method for efficiently producing a water-soluble cellulose ether without using a special apparatus, and a novel water-soluble cellulose ether. More specifically, there are provided a method for producing a water-soluble cellulose ether including a first pulverization step of pulverizing a starting water-soluble cellulose ether to obtain a first pulverization product, and a first sieving step of sieving the first pulverization product by using a first sieve whose mesh surface is coated with an inorganic metal compound to obtain a first-sieve-passed water-soluble cellulose ether fraction; and a novel water-soluble cellulose ether.
    Type: Application
    Filed: May 12, 2020
    Publication date: November 19, 2020
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Akira KITAMURA, Mitsuhiro YOSHIDA, Mitsuo NARITA
  • Patent number: 10836719
    Abstract: An object is to provide a method for easily producing maleimide (MI) in which trace amounts of residual acid components as impurities in a crude MI are efficiently reduced, that is, the acid value is sufficiently reduced. <1> A method for producing purified MI, comprising reducing an acid value of crude MI by 50% or more, by adding carbodiimide (CDI) to a solution comprising the crude MI to react an acid component in the crude MI with the CDI. <2> The method for producing purified MI, comprising adding 0.5% by mass or more and 8% by mass or less of the CDI with respect to a mass of the crude MI for reaction. <3> The method for producing purified MI, wherein the CDI is N,N?-diisopropyl carbodiimide (DIC). <4> The method for producing purified MI, comprising removing a urea derivative of the CDI (CDI-U) by-produced when reacting the acid component in the crude MI with the CDI.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: November 17, 2020
    Assignee: UNITIKA LTD.
    Inventors: Yuki Yamada, Tatsuya Morikita, Yosuke Sugimoto, Takeshi Yoshida, Akira Shigeta, Yoshiaki Echigo
  • Publication number: 20200354317
    Abstract: An object of the present invention is to provide a bismaleimide (D-BMI) modified product in which an amino group of dimer diamine (DDA) is maleimidized, which has the good heat resistance, and has the sufficiently enhanced processability, and a method for producing the same. There are provided: <1> A bismaleimide (D-BMI) modified product in which an amino group of dimer diamine is maleimidized, the bismaleimide modified product having the following characteristics: 1) An acid value of the D-BMI modified product is 2 mg-KOH/g or less. 2) In 1H-NMR, when quantitative comparison is performed using an integrated value (A) of a peak corresponding to a proton of a methylene group directly bound to a nitrogen atom of a maleimide group and an integrated value (B) of a peak corresponding to a vinyl proton of a maleimide group, A/B is 1.25 or more and 2.00 or less.
    Type: Application
    Filed: July 16, 2020
    Publication date: November 12, 2020
    Applicant: UNITIKA LTD.
    Inventors: Yuki YAMADA, Tatsuya MORIKITA, Takeshi YOSHIDA, Akira SHIGETA, Yoshiaki ECHIGO
  • Patent number: 10796569
    Abstract: A direction identification unit (21) identifies a traveling direction in which a surrounding vehicle travels in a partial region of a region indicated by image information (42) obtained by photographing using a camera (31). A feature amount acquisition unit (22) acquires a reference feature amount (41) being a feature amount computed from a reference image corresponding to the identified traveling direction. A vehicle determination unit (23) computes an image feature amount being a feature amount of the image information of the partial region and compares the computed image feature amount with the acquired reference feature amount (41), thereby determining whether the surrounding vehicle is present in the partial region.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: October 6, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takefumi Hasegawa, Masahiro Abukawa, Akira Hirata, Michinori Yoshida
  • Publication number: 20200305545
    Abstract: The midsole structure for an athletic shoe includes a midsole body made of foamed resin, and a sheet composite extending at least from the ball of the foot portion to the toe portion in the midsole body and comprising a plurality of foamed rubber sheets that are overlapped and shifted in the longitudinal direction. The sheet composite comprises a single sheet at the toe portion and a plurality of sheets at the ball of the foot portion.
    Type: Application
    Filed: March 17, 2020
    Publication date: October 1, 2020
    Inventors: Kentaro YAHATA, Yohei YOSHIDA, Akira MORITA
  • Patent number: 10788697
    Abstract: A display apparatus comprises a display device, a functional substrate opposed to and bonded to the display device through an air space and, at peripheral borders on the opposite surfaces of the display device and the functional substrate, first resin maintaining the distance between the display device and the functional substrate and second resin adhering the display device and the functional substrate to each other.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: September 29, 2020
    Assignee: TIANMA MICROELECTRONICS CO., LTD.
    Inventors: Yoshiro Kitagawa, Hitoshi Yoshida, Akira Fujita
  • Patent number: 10759753
    Abstract: An object of the present invention is to provide a bismaleimide (D-BMI) modified product in which an amino group of dimer diamine (DDA) is maleimidized, which has the good heat resistance, and has the sufficiently enhanced processability, and a method for producing the same. There are provided: <1> A bismaleimide (D-BMI) modified product in which an amino group of dimer diamine is maleimidized, the bismaleimide modified product having the following characteristics: 1) An acid value of the D-BMI modified product is 2 mg-KOH/g or less. 2) In 1H-NMR, when quantitative comparison is performed using an integrated value (A) of a peak corresponding to a proton of a methylene group directly bound to a nitrogen atom of a maleimide group and an integrated value (B) of a peak corresponding to a vinyl proton of a maleimide group, A/B is 1.25 or more and 2.00 or less.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: September 1, 2020
    Assignee: UNITIKA LTD.
    Inventors: Yuki Yamada, Tatsuya Morikita, Takeshi Yoshida, Akira Shigeta, Yoshiaki Echigo
  • Patent number: 10747039
    Abstract: A display apparatus comprises a display device, a functional substrate opposed to and bonded to the display device through an air space and, at peripheral borders on the opposite surfaces of the display device and the functional substrate, first resin maintaining the distance between the display device and the functional substrate and second resin adhering the display device and the functional substrate to each other.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: August 18, 2020
    Assignee: TIANMA MICROELECTRONICS CO., LTD.
    Inventors: Yoshiro Kitagawa, Hitoshi Yoshida, Akira Fujita
  • Patent number: 10747773
    Abstract: A database management system (DBMS) manages a database existing in a second storage device with an access speed lower than that of a first storage device. In an execution of a query, the DBMS dynamically generates tasks two or more executable tasks in parallel. The DBMS generates task start information which is information representing a content of the execution of the task, manages the task start information, and executes a content represented by the task start information by the task. The task start information includes a data address set existing in the second storage device. The DBMS controls movement of the data address sets between the first storage device and the second storage device based on a management state of the task start information. In addition, the DBMS selects the task start information based on whether or not the data address set exists in the first storage device.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: August 18, 2020
    Assignees: HITACHI, LTD., THE UNIVERSITY OF TOKYO
    Inventors: Michiko Yoshida, Akira Shimizu, Seisuke Tokuda, Kazuhiko Mogi, Shinji Fujiwara, Nobuo Kawamura, Masaru Kitsuregawa, Kazuo Goda
  • Publication number: 20200254508
    Abstract: A binding machine includes: an accommodation portion accommodating a reel around which a wire is wound; a wire feeding portion configured to feed the wire in a forward direction, winds the wire around a binding object, feeds the wire in a reverse direction, and wraps the wire around the binding object; and a torsion portion that twists the wire. The accommodation portion accommodates the reel such that the reel is offset in one direction along an axial direction of the reel with respect to the wire feeding portion. The binding machine further includes a restricting portion, in a wire passage between the reel and the wire feeding portion, which protrudes inward of the accommodation portion and has a restricting surface with which the wire bent in the other direction along the axial direction of the reel between the reel and the wire feeding portion comes in contact.
    Type: Application
    Filed: February 12, 2020
    Publication date: August 13, 2020
    Applicant: MAX CO., LTD.
    Inventors: Yusuke YOSHIDA, Hiroki ISHIGURO, Terufumi HAMANO, Akira KASAHARA
  • Patent number: 10742354
    Abstract: An optical receiver includes: a first calculation unit that obtains a log likelihood ratio for each M-dimension (M is a natural number), based on a received signal; and a second calculation unit that obtains a log likelihood ratio of an N dimensional symbol (N is a natural number), based on the log likelihood ratio for each M-dimension.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: August 11, 2020
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Masanori Nakamura, Mitsuteru Yoshida, Akira Hirano