Patents by Inventor Akira Yokoyama

Akira Yokoyama 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: 20240155795
    Abstract: Provided is a heat-dissipating waterproof structure having both excellent heat dissipation ability and high waterproofness. A heat-dissipating waterproof structure (300) provided between a top part (203) of a casing (200) to accommodate a heat source (102) and the heat source (102) includes a water receiving part (301) that guides a liquid having entered into the casing (200) through an outlet (203A) provided in the top part (203) of the casing (200), and a water guide channel (302) that guides the liquid having been guided by the water receiving part (301) to be discharged to outside of a space where the heat source (102) is accommodated, and the water receiving part (301) has at least a sloping surface which gradually becomes higher the further it is from being immediately above the heat source (102).
    Type: Application
    Filed: January 18, 2024
    Publication date: May 9, 2024
    Applicant: NEC Platforms, Ltd.
    Inventors: Takahiro Yagi, Kiyotaka Yokoyama, Akira Katsumata, Wataru Imura
  • Patent number: 11964462
    Abstract: The present invention provides an electrical debonding type adhesive sheet capable of producing a joined body in which a voltage can be stably applied to an electrical debonding type adhesive layer. An electrical debonding type adhesive sheet according to a first embodiment of the present invention includes a first adhesive layer, a substrate for voltage application including an electroconductive layer and a base layer, and a second adhesive layer in this order, and has a first protrudent part, in which the first adhesive layer and the substrate for voltage application extend and protrude with respect to the second adhesive layer, and a second protrudent part, in which the substrate for voltage application extends from the first protrudent part and protrudes with respect to the first adhesive layer.
    Type: Grant
    Filed: March 6, 2023
    Date of Patent: April 23, 2024
    Assignee: NITTO DENKO CORPORATION
    Inventors: Kaori Akamatsu, Kaori Mizobata, Ryo Awane, Akira Hirao, Junji Yokoyama, Yosuke Shimizu
  • Patent number: 11943687
    Abstract: A data collection system includes a server device and at least one probe vehicle. The server device includes a storage unit configured to store a master map in which a necessity of data collection for each of a plurality of unit ranges included in a plurality of segments is represented by a binary value; and a server control unit configured to extract from the master map a segment corresponding to a position of the probe vehicle, and to transmit the segment to the probe vehicle as a partial map. The probe vehicle includes a data obtaining unit configured to obtain the data; and a vehicle control unit configured to identify a unit range requiring data collection based on the partial map received from the server device, and to transmit the data obtained in the unit range to the server device.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: March 26, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ryo Neyama, Akira Yoshioka, Jun Koreishi, Akihisa Yokoyama
  • Patent number: 11927834
    Abstract: A technique capable of easily and highly accurately perform positioning of a lens member having a convex optical surface. A lens positioning mechanism is configured to include: a member holding unit that has a function of holding a lens member via an auxiliary tool attached to a second surface of the lens member having a first surface, which is a convex optical surface, and the second surface, which is an optical surface facing the first surface, and biasing the held lens member toward a side of the first surface; and an attitude control unit that abuts on a predetermined portion on the first surface of the lens member biased on the member holding unit to regulate a position of the predetermined portion and positions the lens member in a predetermined attitude.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: March 12, 2024
    Assignee: HOYA LENS THAILAND LTD.
    Inventors: Akira Hamanaka, Shinichi Yokoyama
  • Patent number: 11912688
    Abstract: The present invention provides a compound represented by chemical formula (I) or a pharmaceutically acceptable salt thereof, and a pharmaceutical composition containing the same.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: February 27, 2024
    Assignee: Tohoku University
    Inventors: Akira Sugawara, Atsushi Yokoyama, Susumu Suzuki, Yoshiharu Iwabuchi, Takayuki Doi
  • Publication number: 20240061154
    Abstract: The optical apparatus comprises an optical member and an aluminum alloy member facing the optical member. A black oxide coating is formed on a surface of the aluminum alloy member facing the optical member, and a plurality of holes each having a diameter of 5 ?m or more and 100 ?m or less are formed in the black oxide coating.
    Type: Application
    Filed: August 11, 2023
    Publication date: February 22, 2024
    Inventors: AKIRA YOKOYAMA, SHOTARO WATANABE
  • Publication number: 20230068474
    Abstract: The present disclosure includes: a magnetic member configured to cause a large Barkhausen effect; a power generation coil disposed so as to be wound around the magnetic member; and soft magnetic members formed at both end portions of the magnetic member so as to be in contact with the magnetic member and so as to press the magnetic member. Consequently, evenness of a magnetic flux density inside the magnetic member is increased, and the large Barkhausen effect is stably caused, whereby a highly stable power generation element is obtained.
    Type: Application
    Filed: March 23, 2021
    Publication date: March 2, 2023
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yoshitomo NAKAMURA, Shinichiro YOSHIDA, Hisanori TORII, Masanori NIMURA, Shizuka UEDA, Yuji KUBO, Takuya NOGUCHI, Akira YOKOYAMA, Takeshi MUSHA, Yoshinori MIYAMOTO
  • Publication number: 20220269039
    Abstract: A lens barrel including: a linear guide member with a linear guide extending along an optical axis formed therein; a cam member with a cam formed therein; and a moving member, holding an optical element, including an engaging member engaging with the linear guide and the cam, and moving along the optical axis by a relative rotation between the linear guide member and the cam member, wherein the engaging member includes a first engaging member engaging with the cam, and a second engaging member engaging with the linear guide and having a plane in contact with the linear guide, wherein an amount of backlash between the first engaging member and the cam is smaller than an amount of backlash between the second engaging member and the linear guide, and wherein the lens barrel includes a viscous member arranged between the linear guide and the second engaging member.
    Type: Application
    Filed: February 7, 2022
    Publication date: August 25, 2022
    Inventors: Yuusuke Hirai, Akira Yokoyama
  • Patent number: 11269157
    Abstract: Provided is an optical apparatus including: a first optical element configured to be movable in an optical axis direction; a second optical element configured to be movable in the optical axis direction; a first elastic member configured to bias the first optical element in the optical axis direction; and a second elastic member configured to bias the first optical element and the second optical element in the optical axis direction due to reduction in distance between the first optical element and the second optical element, wherein the second elastic member is configured to bias the first optical element, due to the reduction, in a direction in which the first elastic member biases the first optical element.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: March 8, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Akira Yokoyama
  • Patent number: 11252296
    Abstract: A facsimile, a control method, and a non-transitory recording medium. The facsimile designates destination information according to a designation operation by a user, extracts the destination information from an image indicated by image information, determines whether the destination information designated according to the designation operation and the destination information extracted from the image match, and display on a display, a notification screen based on a result of determination.
    Type: Grant
    Filed: March 4, 2021
    Date of Patent: February 15, 2022
    Assignee: Ricoh Company, Ltd.
    Inventors: Takuya Mori, Akira Yokoyama, Hayato Aikawa
  • Publication number: 20210289098
    Abstract: A facsimile, a control method, and a non-transitory recording medium. The facsimile designates destination information according to a designation operation by a user, extracts the destination information from an image indicated by image information, determines whether the destination information designated according to the designation operation and the destination information extracted from the image match, and display on a display, a notification screen based on a result of determination.
    Type: Application
    Filed: March 4, 2021
    Publication date: September 16, 2021
    Applicant: Ricoh Company, Ltd.
    Inventors: Takuya MORI, Akira YOKOYAMA, Hayato AIKAWA
  • Publication number: 20200267268
    Abstract: An image forming apparatus includes circuitry to acquire a voice instructing to set a plurality of setting items to be used for executing image forming, control a display to display a setting screen indicating a plurality of setting items having been set using one or more keywords recognized from the voice instructing to set the plurality of setting items, and perform image forming based on the plurality of setting items having been set based on the voice.
    Type: Application
    Filed: January 27, 2020
    Publication date: August 20, 2020
    Applicant: Ricoh Company, Ltd.
    Inventor: Akira YOKOYAMA
  • Publication number: 20190137729
    Abstract: Provided is an optical apparatus including: a first optical element configured to be movable in an optical axis direction; a second optical element configured to be movable in the optical axis direction; a first elastic member configured to bias the first optical element in the optical axis direction; and a second elastic member configured to bias the first optical element and the second optical element in the optical axis direction due to reduction in distance between the first optical element and the second optical element, wherein the second elastic member is configured to bias the first optical element, due to the reduction, in a direction in which the first elastic member biases the first optical element.
    Type: Application
    Filed: November 1, 2018
    Publication date: May 9, 2019
    Inventor: Akira Yokoyama
  • Patent number: 10203468
    Abstract: A lens apparatus includes a can ring for moving an optical member in an optical axis direction by rotating about an optical axis relative to a fixed barrel. One end surface of the cam ring in the optical axis direction is in contact with a first ball array, while an opposite end surface of the cam ring in the optical axis direction is in contact with a second ball array, the first ball array is rotatably held by and between a ring member movable in the optical axis direction and the one end surface, the second ball array is rotatably held by and between a cap member fixed to the fixed barrel and the opposite end surface, and the ring member is biased by an elastic member toward the cam ring, and the cam ring is thereby biased toward the cap member.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: February 12, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Akira Yokoyama
  • Patent number: 9671674
    Abstract: A stop mechanism, including: diaphragms; a reception receiving the diaphragms; a cam rotating the diaphragms to change an aperture diameter; and an interlocking arm interlocking with rotation of the cam and arranged on a radially outer side of the cam to rotate the cam from an outside of the stop mechanism. The diaphragms each include: an arc portion defining the aperture diameter and being received in the reception at maximum aperture; and a light-blocking projection formed on the arc portion to block light outside the aperture diameter. The reception includes cutouts for allowing the light-blocking projection to project outside at the maximum aperture. The interlocking arm is located at a position where the light-blocking projection does not overlap in a circumferential direction, and the light-blocking projection moves into the reception while the interlocking arm moves in the circumferential direction in which the aperture diameter is reduced.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: June 6, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Akira Yokoyama
  • Publication number: 20170059809
    Abstract: A lens apparatus includes a can ring for moving an optical member in an optical axis direction by rotating about an optical axis relative to a fixed barrel. One end surface of the cam ring in the optical axis direction is in contact with a first ball array, while an opposite end surface of the cam ring in the optical axis direction is in contact with a second ball array, the first ball array is rotatably held by and between a ring member movable in the optical axis direction and the one end surface, the second ball array is rotatably held by and between a cap member fixed to the fixed barrel and the opposite end surface, and the ring member is biased by an elastic member toward the cam ring, and the cam ring is thereby biased toward the cap member.
    Type: Application
    Filed: August 16, 2016
    Publication date: March 2, 2017
    Inventor: Akira Yokoyama
  • Patent number: 9491319
    Abstract: A display control device includes an acquiring unit that acquires a display request of display information including a display item with respect to a device; a first storage unit that stores therein a minimum item size that is a minimum value of an item size of the display item displayed on a display screen on which the display information is to be displayed; an item size determination unit that sets, based on a screen size of the display screen, an item size of the display item when displayed on the display screen, to an item size that is equal to or larger than the minimum item size; and a display information generating unit that generates the display information including the display item having the set item size.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: November 8, 2016
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Akira Yokoyama, Tatsuo Nishimura
  • Publication number: 20160161829
    Abstract: A stop mechanism, including: diaphragms; a reception receiving the diaphragms; a cam rotating the diaphragms to change an aperture diameter; and an interlocking arm interlocking with rotation of the cam and arranged on a radially outer side of the cam to rotate the cam from an outside of the stop mechanism. The diaphragms each include: an arc portion defining the aperture diameter and being received in the reception at maximum aperture; and a light-blocking projection formed on the arc portion to block light outside the aperture diameter. The reception includes cutouts for allowing the light-blocking projection to project outside at the maximum aperture. The interlocking arm is located at a position where the light-blocking projection does not overlap in a circumferential direction, and the light-blocking projection moves into the reception while the interlocking arm moves in the circumferential direction in which the aperture diameter is reduced.
    Type: Application
    Filed: November 20, 2015
    Publication date: June 9, 2016
    Inventor: Akira Yokoyama
  • Publication number: 20160080588
    Abstract: An information processing system includes an execution request unit that requests one or more multiple preregistered apparatuses to execute an operation, an authority information acquisition unit that acquires authority information that indicates user authority on the preregistered apparatus from at least one of the preregistered apparatuses, an authority management information generator that generates authority management information that indicates the user authority applied to the preregistered apparatuses based on the authority information that the authority information acquisition unit acquires, and a controller that controls whether or not to allow the execution request unit to request to execute the operation based on the authority management information.
    Type: Application
    Filed: September 11, 2015
    Publication date: March 17, 2016
    Inventors: Tohru SASAKI, Tomohiro Kuroyanagi, Atsushi Okazato, Makoto Sasaki, Junki Aoki, Takuya Mori, Hirohisa Saitoh, Mie Watanabe, Tatsuo Nishimura, Yukinori Ishii, Hiroyuki Sakuyama, Fumihiro Umetsu, Itaru Kodaira, Naoki Shimizu, Akira Yokoyama, Hiroaki Ikkanzaka, Tadashi Sato, Takashi Toriumi, Fumiyoshi Kittaka
  • Patent number: 9285659
    Abstract: An optical accessory adapter is used to couple together a lens apparatus and an optical accessory attached to an object side portion of the lens apparatus having fitting attachment diameters different from each other. The adapter is provided with a cutout portion in a part of a region outside the attachment diameter of the lens apparatus on an object side surface thereof.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: March 15, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Akira Yokoyama