Patents by Inventor Masahiro Sakai

Masahiro Sakai 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: 20210018859
    Abstract: An image forming apparatus includes: a main body; a developing cartridge having a housing, a memory medium, a memory medium unit, a developer carrier, and a protrusion portion in the longitudinal direction of the developer carrier; and a tray having a frame, an image bearing member, a guide member provided at one end in the longitudinal direction, an electric contact portion with the memory medium, and a memory unit support portion. The guide member includes a portion which functions as a memory unit support portion, and a downstream portion located downstream of the memory unit support portion in the mounting direction of the developing cartridge. The memory unit support portion guides the protrusion portion to the downstream portion when the developing cartridge is mounted on the frame.
    Type: Application
    Filed: July 14, 2020
    Publication date: January 21, 2021
    Inventors: Yu Fukasawa, Yukio Kubo, Daisuke Abe, Mitsuhiro Sato, Masahiro Suetsugu, Kengo Sakai
  • Publication number: 20210010761
    Abstract: The heat sink includes a radiation fin extending in a vertical direction from a heat-receiving unit, in which the radiation fin includes a notched portion in which a tip end side corner of the radiation fin is retracted inward in a main surface direction of the radiation fin with respect to a virtual rectangle or a virtual square formed of a side of the radiation fin on the heat-receiving unit side viewed from the main surface side, a first side extending from both ends of the side on the heat-receiving unit side in a direction orthogonal to the side on the heat-receiving unit side and a second side formed by extending a linear portion on the side of the radiation fin on a tip end side facing the side on the heat-receiving unit side to the first side.
    Type: Application
    Filed: September 28, 2020
    Publication date: January 14, 2021
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Masato WATANABE, Masahiro MEGURO, Hiroshi SAKAI, Yasuhiro UCHIMURA, Shuta HIKICHI
  • Publication number: 20210013366
    Abstract: A group 13 nitride layer is composed of a polycrystalline group 13 nitride and is constituted by a plurality of monocrystalline particles having a particular crystal orientation approximately in a normal direction. The group 13 nitride comprises gallium nitride, aluminum nitride, indium nitride or the mixed crystal thereof. The group 13 nitride layer includes an upper surface and a bottom surface, and a full width at half maximum of a (1000) plane reflection of X-ray rocking curve on the upper surface is 20000 seconds or less and 1500 seconds or more.
    Type: Application
    Filed: September 28, 2020
    Publication date: January 14, 2021
    Inventors: Masahiro SAKAI, Takashi YOSHINO, Katsuhiro IMAI, Yoshitaka KURAOKA
  • Patent number: 10890805
    Abstract: A liquid crystal display device includes sequentially from a viewing surface side: a first polarizer; an out-cell retardation layer; a first substrate; an in-cell retardation layer; a horizontally aligned liquid crystal layer; a second substrate; and a second polarizer. The liquid crystal display device includes a viewing angle compensation film between the first polarizer and the out-cell retardation layer or between the second substrate and the second polarizer. The out-cell retardation layer is a laminate including sequentially from a viewing surface side: a first retardation layer having an NZ coefficient of 1.0-1.1 and an Re of 120 nm or greater and smaller than 137.5 nm; and a second retardation layer having an Re of 0-10 nm and an Rth of 80-150 nm. The in-cell retardation layer is a third retardation layer having an NZ coefficient of 0.7-1.4 and an Re of 120 nm or greater and smaller than 137.5 nm.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: January 12, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masahiro Hasegawa, Akira Sakai, Takako Koide, Yuichi Kawahira, Koji Murata, Kiyoshi Minoura
  • Patent number: 10882584
    Abstract: A hydraulic operating device comprises a base member, an operating member, and a piston. The base member includes a first end portion, a second end portion, a cylinder bore, a first hose-attachment hole, and a second hose-attachment hole. The second end portion is opposite to the first end portion. The first hose-attachment hole is configured to be in fluid communication with the cylinder bore. The second hose-attachment hole is configured to be in fluid communication with the cylinder bore. The operating member is pivotally coupled to the base member at the first end portion about a pivot axis. The first hose-attachment hole and the second hose-attachment hole are provided closer to the pivot axis than the second end portion.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: January 5, 2021
    Assignee: SHIMANO INC.
    Inventors: Kazuma Mori, Takuma Sakai, Masahiro Nakakura
  • Patent number: 10882581
    Abstract: An operating device includes a base member, an operating member, a first connecting part, a second connecting part and an additional component. The base member is mounted on a human-powered vehicle; an operating member provided to the base member. The first connecting part is provided to one of the base member and the operating member in a manner connectable to a power transmitting medium. The second connecting part is provided to the base member in a manner connectable to the power transmitting medium. The additional component is provided to at least one of the base member and the operating member.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: January 5, 2021
    Assignee: Shimano Inc.
    Inventors: Hiroshi Matsumoto, Takuma Sakai, Kazuma Mori, Masahiro Nakakura
  • Publication number: 20200413537
    Abstract: A printed wiring board includes an insulator having a first surface, and a second surface opposite to the first surface, and including a through-hole penetrating from the first surface to the second surface, and a metal plated layer formed on the first surface and the second surface of the insulator, and on an inner peripheral surface of the through-hole, wherein an inside diameter of the through-hole gradually decreases from the first surface toward the second surface of the insulator, an average diameter of the through-hole at the first surface of the insulator is 20 ?m or greater and 35 ?m or less, the average diameter of the through-hole at the second surface of the insulator is 3 ?m or greater and 15 ?m or less, and an average thickness of the metal plated layer formed on the first surface and the second surface of the insulator is 8 ?m or greater and 12 ?m or less.
    Type: Application
    Filed: March 6, 2019
    Publication date: December 31, 2020
    Inventors: Kenji TAKAHASHI, Eiko IMAZAKI, Koji NITTA, Shoichiro SAKAI, Kousuke MIURA, Masahiro MATSUMOTO, Hirohisa SAITO
  • Patent number: 10870463
    Abstract: A hydraulic operating device comprises a base member, an operating member, a piston, and a mounting member. The base member includes a cylinder bore, a first hose-attachment hole, and a second hose-attachment hole. The first hose-attachment hole is configured to be in fluid communication with the cylinder bore. The second hose-attachment hole is configured to be in fluid communication with the cylinder bore. The mounting member includes a mount opening through which the handlebar is to extend. The mount opening has a mount center axis. The base member includes a support portion configured to contact an outer circumferential surface of the handlebar without clamping the handlebar in a mounting state where the handlebar extends through the mount opening of the mounting member.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: December 22, 2020
    Assignee: SHIMANO INC.
    Inventors: Kazuma Mori, Takuma Sakai, Masahiro Nakakura
  • Patent number: 10867515
    Abstract: A drive assist device includes a display that displays an image around a vehicle imaged by an imaging device installed on the vehicle, a setting unit that sets a target designated by a user on the image as a recognition target, a detection unit that detects a state change of the recognition target on the image in a case where the recognition target is set, and a notification control unit that controls a notification device to notify the user of the detection result in a case where the state change of the set recognition target is detected.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: December 15, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kentaro Ichikawa, Toshiki Kindo, Katsuhiro Sakai, Masahiro Harada, Hiromitsu Urano
  • Publication number: 20200376851
    Abstract: Provided is an ejection apparatus including: an ejection head having an ejection opening for ejecting an ejection material in a liquid state; a storage container storing therein the ejection material and communicating with the ejection head; and a pressure control unit that maintains the pressure inside the storage container at a negative pressure. The pressure control unit generates a first pressure in the storage container in a normal operation, the first pressure being capable of forming a meniscus of the ejection material in the ejection opening. The pressure control unit drops the pressure inside the storage container to at least the first pressure in a case where the pressure inside the storage container reaches a predetermined pressure above the first pressure.
    Type: Application
    Filed: May 21, 2020
    Publication date: December 3, 2020
    Inventors: Masahiro Kuri, Noriyasu Hasegawa, Hisashi Namba, Ken Katsuta, Keita Sakai, Nobuto Kawahara, Kenichi Kobayashi
  • Patent number: 10847279
    Abstract: An object of the present invention is to provide a novel sulfur-based positive-electrode active material which can largely improve cyclability of a lithium-ion secondary battery, a positive electrode comprising the positive-electrode active material and a lithium-ion secondary battery comprising the positive electrode. The sulfur-based positive-electrode active material is one comprising: a carbon skeleton derived from a polymer composed of a monomer unit having at least one hetero atom-containing moiety, and sulfur incorporated into the carbon skeleton as the carbon skeleton is formed from the polymer by heat treatment.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: November 24, 2020
    Assignees: SUMITOMO RUBBER INDUSTRIES, LTD., NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Tatsuya Kubo, Toshikatsu Kojima, Tetsuo Sakai, Akihiro Yamano, Masahiro Yanagida
  • Publication number: 20200355443
    Abstract: Provided herein is an example heat sink including a heat dissipation unit including a plurality of heat dissipation fin groups including a plurality of heat dissipation fins, the plurality of heat dissipation fin groups forming a laminated structure and a plurality of heat pipes, one end portions of which are thermally connected to a heating element and other end portions of which are inserted into a space provided between the plurality of heat dissipation fin groups forming the laminated structure and thermally connected to the heat dissipation unit.
    Type: Application
    Filed: July 21, 2020
    Publication date: November 12, 2020
    Applicant: Furukawa Electric Co., Ltd.
    Inventors: Yasuyuki TOCHIGI, Masahiro MEGURO, Hiroshi SAKAI, Kenya KAWABATA
  • Patent number: 10829180
    Abstract: A hydraulic operating device for a small vehicle including a bicycle comprises a base member, a mounting structure, an operating member, and a piston. The base member includes a cylinder bore having a cylinder axis. The mounting structure defines a mounting axis linearly extending along the handlebar in a mounting state where the base member is mounted on a handlebar with the mounting structure. The operating member is pivotally coupled to the base member about a first pivot axis between a rest position and an operated position. The cylinder axis is non-perpendicular to the mounting axis as viewed along the first pivot axis in the mounting state. The piston is movably provided in the cylinder bore. The piston is coupled to the operating member to be pulled in response to a pivotal movement of the operating member from the rest position to the operated position.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: November 10, 2020
    Assignee: SHIMANO INC.
    Inventors: Takuma Sakai, Yasuyuki Komada, Mototsugu Nakai, Masahiro Nakakura, Takafumi Nishino
  • Patent number: 10823642
    Abstract: A spoke angle deviation amount measuring system (2) includes a first to fourth support units (21) to (24) configured to support rotatably a first to fourth tires (11) to (14), respectively. Shaft portions (31d) of the support units (21) to (24) are positioned by positioning caps (55) after a vehicle (3) is moved to a measuring position with a steering wheel (4) positioned neutral. With the tires (11) to (14) inclined at a toe angle with respect to a front-and-rear direction, when the vehicle (3) is caused to travel forwards, lateral stress is exerted on the support units (21) to (24), whereby the support units (21) to (24) turn about the corresponding shaft portions (31d). An angle sensor (40) detects turning angles of the support units (21) to (24). A control device (27) calculates a spoke angle deviation amount based on the detected turning angles.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: November 3, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Kenichiro Kurai, Kento Aono, Masahiro Murata, Tatsuya Sakai, Takayuki Ogawa
  • Publication number: 20200326131
    Abstract: Example embodiments may provide a heat sink capable of cooling even when hot spots generate a large amount of heat that is unevenly distributed in some regions of a heating element package. The heat sink may include a plurality of heat pipes including one end portions thermally connected to a heating element package provided with a heating element in a package and other end portions thermally connected to a heat dissipation unit, in which the plurality of heat pipes includes at least a first heat pipe and a second heat pipe having greater heat transport capacity than heat transport capacity of the first heat pipe.
    Type: Application
    Filed: June 25, 2020
    Publication date: October 15, 2020
    Applicant: Furukawa Electric Co., Ltd.
    Inventors: Shuta HIKICHI, Kenya KAWABATA, Masahiro MEGURO, Hiroshi SAKAI, Masato WATANABE, Yasuhiro UCHIMURA
  • Patent number: 10800480
    Abstract: A hydraulic operating device comprises a base member, an operating member, a piston, and a mounting member. The base member includes a cylinder bore, a first hose-attachment hole, and a second hose-attachment hole. The first hose-attachment hole is configured to be in fluid communication with the cylinder bore. The second hose-attachment hole is configured to be in fluid communication with the cylinder bore. The operating member is pivotally coupled to the base member about a pivot axis. The mounting member is configured to couple the base member to a handlebar. The mounting member includes a mount opening through which the handlebar is to extend. The first hose-attachment hole, the second hose-attachment hole, and the mount opening are provided on a reference plane perpendicular to the pivot axis.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: October 13, 2020
    Assignee: SHIMANO INC.
    Inventors: Yusuke Nishikawa, Takuma Sakai, Nobuyoshi Fujii, Yoshimitsu Miki, Masahiro Nakakura
  • Patent number: 10802187
    Abstract: A circularly polarizing plate includes: a first retardation layer having negative refractive index anisotropy; a second retardation layer having positive refractive index anisotropy; and a linear polarizer, the first retardation layer and the second retardation layer being disposed such that their optical axes are parallel to each other, the first retardation layer providing an in-plane retardation whose absolute value is |R1(?)| to light having a wavelength of ? nm, the second retardation layer providing an in-plane retardation whose absolute value is |R2(?)| to light having a wavelength of ? nm, the first retardation layer and the second retardation layer satisfying the following formulas (1) to (4): |R1(450)|>|R1(550)|>|R1(650)|??(1) |R2(550)|>|R1(550)|??(2) |R2(550)|?|R1(550)|>|R2(450)|?|R1(450)|??(3) |R2(650)|?|R1(650)|>|R2(550)|?|R1(550)|??(4).
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: October 13, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Akira Sakai, Masahiro Hasegawa, Koji Murata, Yuichi Kawahira, Takako Koide, Kiyoshi Minoura
  • Patent number: 10795197
    Abstract: The present invention relates to a liquid crystal panel including in the following order from a viewing surface side: an antireflection film; a circularly polarizing plate including a linearly polarizing plate and an out-cell retarder; a touch panel including a support and a detection electrode; a panel substrate; and an in-cell retarder, the support having a retardation slow axis that forms an angle of 40° to 50° with a slow axis of the in-cell retarder and with a slow axis of the out-cell retarder, the support having a retardation of 3 nm or smaller.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: October 6, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yuichi Kawahira, Koji Murata, Takako Koide, Masahiro Hasegawa, Akira Sakai
  • Patent number: 10797323
    Abstract: A current collector included in a fuel cell, the fuel cell including a membrane electrode assembly including a solid polymer electrolyte layer and a pair of electrode layers formed to sandwich the solid polymer electrolyte layer, the current collector stacked on each electrode layer, and a gas flow path for supply of a gas to each electrode layer, the current collector including a metal porous body which is stacked on the electrode layer, has a flowing gas supplied to the electrode layer, and is rendered conducting to the electrode layer, and the metal porous body including an electrically conductive layer containing electrically conductive particles fixed to a corrosion-resistant and water-repellent resin at least on a side of the electrode layer.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: October 6, 2020
    Assignees: Sumitomo Electric Industries, Ltd., NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Kazuki Okuno, Takahiro Higashino, Masatoshi Majima, Tsutomu Iwaki, Masahiro Yanagida, Tetsuo Sakai
  • Publication number: 20200310200
    Abstract: A photo-alignment film of the present invention includes a polymer layer containing a photoreactive polymer and metal nanoparticles dispersed in the polymer layer at a concentration of 109 particles/(cm2×100 nm) or more and 1019 particles/(cm2×100 nm) or less. The metal nanoparticles have an absorption peak in a wavelength region of 420 nm or less. An absorbance A1 at the absorption peak of the metal nanoparticles and an absorbance A2 at an absorption peak of the polymer layer satisfy a relationship represented by the following formula 1: 0.2?A1/A2?25??(Formula 1).
    Type: Application
    Filed: March 26, 2020
    Publication date: October 1, 2020
    Inventors: KOJI MURATA, AKIRA SAKAI, YUICHI KAWAHIRA, TAKAKO KOIDE, MASAHIRO HASEGAWA, KIYOSHI MINOURA