Patents by Inventor Masahiro Kitamura

Masahiro Kitamura 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: 20230152867
    Abstract: An electronic apparatus includes a chassis, a keyboard device, a frame including partition walls, and a fan device. At least part of the partition walls has a bottom edge surface notched to form an air flow path between the notched bottom edge surface and a top surface of the plate-shaped member, to have a communicating path through which adjacent key arrangement holes communicate. A height of the communicating path in a region not overlapping with the fan device is lower than a height of the communicating path in a region overlapping with the fan device, in a plan view of the chassis.
    Type: Application
    Filed: September 21, 2022
    Publication date: May 18, 2023
    Applicant: LENOVO (SINGAPORE) PTE. LTD.
    Inventors: Masahiro Kitamura, Junki Hashiba, Po Han Chen, Satoshi Douzono
  • Publication number: 20230150235
    Abstract: The present disclosure provides a multilayer film comprising a resin composition layer containing an ethylene-vinyl alcohol copolymer with an ethylene unit content of 20 mol% or more and 60 mol% or less and an ethylene-vinyl alcohol copolymer with an ethylene unit content being more than the ethylene-vinyl alcohol copolymer, and a thermoplastic resin layer.
    Type: Application
    Filed: April 14, 2021
    Publication date: May 18, 2023
    Applicant: KURARAY CO., LTD.
    Inventors: Frank Balemans, Hiroyuki Shimo, Masahiro Kitamura, Yuji Shimizu
  • Publication number: 20230147548
    Abstract: An electronic apparatus includes a chassis, a keyboard device which is installed on the upper surface side of the chassis and has a plurality of keycaps and a frame which is installed on the upper surface side of the chassis and isolates the respective keycaps of the keyboard device from one another, in which each of at least some of the plurality of keycaps has an upper plate which forms an operation surface, and side walls on four sides which are provided so as to hang down from a peripheral edge part of the upper plate and face the frame respectively, and in at least the side wall on one side of the side walls on the four sides, a flow path formation part which widens a clearance between that side wall and the frame and thereby forms an air flow path is provided.
    Type: Application
    Filed: August 25, 2022
    Publication date: May 11, 2023
    Applicant: LENOVO (SINGAPORE) PTE. LTD.
    Inventors: Junki Hashiba, Masahiro Kitamura, Satoshi Douzono
  • Publication number: 20230124239
    Abstract: An electronic apparatus includes: a heating element; and a plurality of heat pipes that is thermally connected to the heating element. Each of the heat pipes has a cross section having a rectangular shape, a heat receiving surface thermally connected to the heating element, and a side surface orthogonal to the heat receiving surface. The side surfaces of the heat pipes, which are adjacent to each other, are in surface contact with each other.
    Type: Application
    Filed: September 14, 2022
    Publication date: April 20, 2023
    Applicant: Lenovo (Singapore) Pte. Ltd.
    Inventors: Masahiro Kitamura, Takuroh Kamimura, Akinori Uchino, Ryota Watanabe
  • Publication number: 20230079287
    Abstract: An electronic apparatus uses the cooling effect of a vapor chamber and includes: a chassis; a motherboard which is provided in the chassis and has a CPU mounted on a front surface thereof; a vapor chamber having a working fluid sealed in a hermetically sealed space formed between two metal plates; a stud fixed to the upper surface of the vapor chamber; and a screw fixing the stud and the motherboard. The CPU is thermally connected to the upper surface of the vapor chamber. The motherboard has a mounting hole formed therein, and the screw is screwed to the stud through the mounting hole from the rear surface of the motherboard. The CPU is rectangular, and four studs and four screws are provided at positions in the vicinity of the four corners of the CPU.
    Type: Application
    Filed: July 7, 2022
    Publication date: March 16, 2023
    Applicant: Lenovo (Singapore) Pte. Ltd.
    Inventors: Masahiro Kitamura, Yusuke Onoue, Takuroh Kamimura
  • Publication number: 20230069684
    Abstract: An electronic apparatus includes: a chassis; first and second heating elements in the chassis; and a cooling module absorbing the heat. The cooling module includes: a first vapor chamber connected to the first heating element; and a second vapor chamber connected to the second heating element. The first and second vapor chambers are placed adjacent to each other with a step therebetween. The first vapor chamber has a bridge that is a part of at least one of the two first metal plates, the bridge straddling the step and extending toward the second vapor chamber to be connected to a surface of the second vapor chamber. The bridge is not provided with the closed space.
    Type: Application
    Filed: June 2, 2022
    Publication date: March 2, 2023
    Applicant: LENOVO (SINGAPORE) PTE. LTD.
    Inventors: Masahiro Kitamura, Yusuke Onoue, Takuroh Kamimura, Akinori Uchino
  • Patent number: 11582882
    Abstract: An information processing apparatus includes: a first chassis having a first surface provided with at least an air intake port; a second chassis which is connected to the first chassis in a relatively rotatable manner and has a second surface that overlaps the first surface of the first chassis by the rotation; a heat dissipation unit having a fan for replacing air in the first chassis with outside air through at least the air intake port; a state detection unit that detects whether a state is a first state in which the first surface and the second surface overlap; and a control unit which changes control of the fan according to whether the state is the first state.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: February 14, 2023
    Assignee: LENOVO (SINGAPORE) PTE. LTD.
    Inventors: Masahiro Kitamura, Shogo Akiyama, Takuroh Kamimura, Atsunobu Nakamura
  • Patent number: 11507176
    Abstract: An information processing apparatus includes a first processor that takes plural stages of first power control modes different in first rated power from one another, a second processor that takes plural stages of second power control modes different in second rated power from one another, and a power control unit controls the power consumption of the first processor and the power consumption of the second processor. The power control unit determines a second power control mode based on a first event in which a predetermined state of the first processor continues for a first duration or more, and a second event in which a predetermined state of the second processor continues for a second duration or more.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: November 22, 2022
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Atsunobu Nakamura, Tsutomu Chonan, Takuroh Kamimura, Masahiro Kitamura
  • Publication number: 20220369512
    Abstract: An electronic apparatus includes: a chassis; a heat generating element provided in the chassis; and a cooling device that has a cooling fin, a heat pipe connecting the cooling fin and the heat generating element, and a pressing assembly pressing the heat pipe against the heat generating element, and is provided in the chassis. The heat pipe has: a heat absorbing section that absorbs heat generated by the heat generating element; and a thin plate section having a thickness which is smaller than that of the heat absorbing section. The pressing assembly has: a base assembly relatively fixed to the chassis; and a bridge section that is provided integrally with the base assembly and placed on a surface of the thin plate section in such a manner as to extend over the heat pipe in a width direction.
    Type: Application
    Filed: March 29, 2022
    Publication date: November 17, 2022
    Applicant: LENOVO (SINGAPORE) PTE. LTD.
    Inventors: Masahiro Kitamura, Akinori Uchino, Shusaku Tomizawa
  • Publication number: 20220174841
    Abstract: An information processing apparatus includes: a first chassis having a first surface provided with at least an air intake port; a second chassis which is connected to the first chassis in a relatively rotatable manner and has a second surface that overlaps the first surface of the first chassis by the rotation; a heat dissipation unit having a fan for replacing air in the first chassis with outside air through at least the air intake port; a state detection unit that detects whether a state is a first state in which the first surface and the second surface overlap; and a control unit which changes control of the fan according to whether the state is the first state.
    Type: Application
    Filed: September 13, 2021
    Publication date: June 2, 2022
    Applicant: LENOVO (SINGAPORE) PTE. LTD.
    Inventors: Masahiro Kitamura, Shogo Akiyama, Takuroh Kamimura, Atsunobu Nakamura
  • Publication number: 20220107447
    Abstract: An optical sheet of the present invention is an optical sheet used by being disposed on a surface of an optical member having light transmitting properties, the optical sheet including a pair of base materials having light transmitting properties, and a half mirror layer provided between the pair of base materials, which transmits a part of incident light and reflects the rest of the incident light. The base material positioned on an opposite side to the optical member among the pair of base materials include a coloring material.
    Type: Application
    Filed: January 21, 2020
    Publication date: April 7, 2022
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventors: Masahiro Kitamura, Satoshi Nishino, Junpei Aisu
  • Publication number: 20220091660
    Abstract: An information processing apparatus includes a first processor that takes plural stages of first power control modes different in first rated power from one another, a second processor that takes plural stages of second power control modes different in second rated power from one another, and a power control unit controls the power consumption of the first processor and the power consumption of the second processor. The power control unit determines a second power control mode based on a first event in which a predetermined state of the first processor continues for a first duration or more, and a second event in which a predetermined state of the second processor continues for a second duration or more.
    Type: Application
    Filed: July 22, 2021
    Publication date: March 24, 2022
    Applicant: Lenovo (Singapore) Pte. Ltd.
    Inventors: Atsunobu Nakamura, Tsutomu Chonan, Takuroh Kamimura, Masahiro Kitamura
  • Patent number: 11269388
    Abstract: An electronic apparatus includes: an apparatus chassis including therein an electronic board; a keyboard provided on a top of the apparatus chassis; and a fan device that includes a fan chassis and a blade part. The fan chassis includes a first air intake formed on a bottom surface thereof, a second air intake formed on a top surface thereof, and an air outlet formed on a side surface thereof. The blade part rotates inside the fan chassis. The fan device is arranged between a basal plate and a bottom surface of the keyboard inside the apparatus chassis. The basal plate includes a first inlet at a position overlapping the first air intake. The keyboard includes a second inlet that makes air pass through the keyboard in an up-down direction thereof. The electronic apparatus further includes a first water stop member that separates the first air intake from the electronic board.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: March 8, 2022
    Inventors: Masahiro Kitamura, Takuroh Kamimura, Shogo Akiyama, Satoshi Douzono, Akinori Uchino
  • Publication number: 20220045026
    Abstract: The present invention addresses the problem of providing a conductive paste that achieves both low resistance and high adhesion strength (die shear strength) of the resulting conductive body after firing. The present invention provides a conductive paste comprising: (A) copper fine particles having an average particle diameter of 50 nm to 400 nm and a crystallite diameter of 20 nm to 50 nm; (B) copper particles having an average particle diameter of 0.8 ?m to 5 ?m and a ratio of a crystallite diameter to the crystallite diameter of the copper particles (A) of 1.0 to 2.0; and (C) a solvent.
    Type: Application
    Filed: September 24, 2019
    Publication date: February 10, 2022
    Applicant: NAMICS CORPORATION
    Inventors: Masashi KAJITA, Masahiro KITAMURA, Takayuki HIGUCHI, Noritsuka MIZUMURA
  • Patent number: 11189444
    Abstract: An electronic apparatus having key tops that can be illuminated without cooling performance being affected is described. The electronic apparatus includes: a chassis and a keyboard device having a set of key tops; a base plate for supporting the key tops; a membrane sheet laminated on a top surface side of the base plate; a light guide plate laminated on a bottom surface side of the base plate; and a light source module for irradiating the key tops with light via the light guide plate. The keyboard device, which is located on a top surface side of the chassis, includes an inlet port for passing air in a top-bottom direction and a set of individual light sources arranged respectively on bottom surface sides of a part of the key tops that is located to overlap the inlet port.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: November 30, 2021
    Assignee: LENOVO (SINGAPORE) PTE LTD
    Inventors: Masahiro Kitamura, Takuroh Kamimura, Shogo Akiyama, Satoshi Douzono
  • Patent number: 11079859
    Abstract: An electronic apparatus is disclosed. The electronic apparatus includes a keyboard having a support plate, a set of keytops configured to be supported on an upper face side of the support plate to be vertically movable, a pointing stick configured to be installed on the upper face side of the support plate and to be surrounded by the set of keytops, a bracket member installed on the lower face side of the support plate and to support the pointing stick, and a screw, which is located in a space between the set of keytops, secures the bracket member to the support plate, in which a head or a tip of the screw projects more upward than the upper face of the support plate.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: August 3, 2021
    Assignee: LENOVO (SINGAPORE) PTE LTD
    Inventors: Masahiro Kitamura, Satoshi Douzono, Kazutoshi Sugisawa
  • Publication number: 20210225603
    Abstract: An electronic apparatus having key tops that can be illuminated without cooling performance being affected is described. The electronic apparatus includes: a chassis and a keyboard device having a set of key tops; a base plate for supporting the key tops; a membrane sheet laminated on a top surface side of the base plate; a light guide plate laminated on a bottom surface side of the base plate; and a light source module for irradiating the key tops with light via the light guide plate. The keyboard device, which is located on a top surface side of the chassis, includes an inlet port for passing air in a top-bottom direction and a set of individual light sources arranged respectively on bottom surface sides of a part of the key tops that is located to overlap the inlet port.
    Type: Application
    Filed: January 8, 2021
    Publication date: July 22, 2021
    Inventors: Masahiro Kitamura, Takuroh Kamimura, Shogo Akiyama, Satoshi Douzono
  • Publication number: 20210216120
    Abstract: An electronic apparatus includes: an apparatus chassis including therein an electronic board; a keyboard provided on a top of the apparatus chassis; and a fan device that includes a fan chassis and a blade part. The fan chassis includes a first air intake formed on a bottom surface thereof, a second air intake formed on a top surface thereof, and an air outlet formed on a side surface thereof. The blade part rotates inside the fan chassis. The fan device is arranged between a basal plate and a bottom surface of the keyboard inside the apparatus chassis. The basal plate includes a first inlet at a position overlapping the first air intake. The keyboard includes a second inlet that makes air pass through the keyboard in an up-down direction thereof. The electronic apparatus further includes a first water stop member that separates the first air intake from the electronic board.
    Type: Application
    Filed: October 20, 2020
    Publication date: July 15, 2021
    Applicant: LENOVO (SINGAPORE) PTE. LTD.
    Inventors: Masahiro Kitamura, Takuroh Kamimura, Shogo Akiyama, Satoshi Douzono, Akinori Uchino
  • Patent number: 11043341
    Abstract: Apparatuses and systems that include a keyboard baseplate including a concave structure with a logic substrate housed therein are disclosed. One apparatus includes a keyboard baseplate including a concave structure formed thereon and a lower surface having a side. The apparatus further includes a logic substrate provided on the side of the lower surface of the baseplate and housed within the concave structure. The logic substrate is configured to receive an analog signal generated by a sensor and convert the analog signal to a digital signal.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: June 22, 2021
    Assignee: Lenovo (Singapore) PTE. LTD.
    Inventors: Masahiro Kitamura, Satoshi Douzono, Takanori Koike, Kazumi Nakaju
  • Patent number: 11021007
    Abstract: The present invention provides a laminated film for molded decoration including a transparent polymer substrate, a hard coat layer having a thickness of 2 to 10 ?m, and a protective layer having a thickness of 50 to 200 nm laminated in that order, in which the hard coat layer is a cured layer of a hard coating composition, the protective layer is a cured layer of a coating composition for forming a protective layer, the laminated film for molded decoration has an extension rate within a range of 15 to 80%, and after a scratch test involving 200 reciprocations under a load of 2 N per 4 cm2 of a surface of the laminated film for molded decoration, the laminated film for molded decoration has no scratches and no deterioration in visibility due to change in appearance.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: June 1, 2021
    Assignee: NIPPON PAINT AUTOMOTIVE COATINGS CO., LTD.
    Inventors: Kazuhito Kobayashi, Masahiro Kitamura, Yusuke Nakata