Patents by Inventor Masafumi Sakai

Masafumi 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: 20240133573
    Abstract: An air-conditioning apparatus includes configured to, when a cooling operation mode is changed into one of multiple dehumidifying operation modes, select the one of the multiple dehumidifying operation modes on the basis of a value of a sensible heat ratio difference ?SHF that is a difference between a target sensible heat ratio acquired from an indoor temperature detected by an indoor temperature sensor, a target indoor temperature, and target indoor humidity and a theoretical minimum possible sensible heat ratio acquired from enthalpy of an indoor air, enthalpy of blown air from the indoor unit when relative humidity is 100%, and enthalpy of sensible heat.
    Type: Application
    Filed: March 17, 2021
    Publication date: April 25, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kazuya HONDA, Naofumi TAKENAKA, Jumpei TAKAGI, Masafumi TOMITA, Mizuo SAKAI
  • Publication number: 20240083459
    Abstract: In a technique for controlling a first vehicle, display information and position specifying information are received from a second vehicle different from the first vehicle via inter-vehicle communications. The display information is information for display and independently set for the second vehicle in the second vehicle. The position specifying information is information for specifying a position of the second vehicle. The position of the second vehicle relative to the first vehicle is specified based on the position specifying information. Display on a display device is controlled to superimpose information indicated by the display information on the position of the second vehicle in a landscape in front of the first vehicle based on the position of the second vehicle and the display information.
    Type: Application
    Filed: November 13, 2023
    Publication date: March 14, 2024
    Inventors: Asuka SAKAI, Taro KOBAYASHI, Natsuko MIYAZAKI, Masafumi NOHARA, Haozhou LI, Kazuhiro MATSUI, Jinhae CHOI
  • Patent number: 11926246
    Abstract: In a local cart traveling system, a frame track includes first and second metal rails each with an L-shaped cross section and facing each other. A local cart is within the frame track, and includes a first electricity receiving tire and a second electricity receiving tire to travel on horizontal travel surfaces of the rails. A voltage supplier supplies an AC voltage to the travel surfaces, so that the first metal rail and a first electricity receiving tire define a first capacitor and the second metal rail and the second electricity receiving tire define a second capacitor. The local cart includes a power receiver to receive AC power, and a travel motor that receives power after the AC power is rectified. The frame track includes a connecting plate as an electrical insulator covering portions of the surfaces of vertical walls of the first metal rail and the second metal rail.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: March 12, 2024
    Assignees: MURATA MACHINERY, LTD., NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGY
    Inventors: Minoru Mizutani, Kazuhiro Ishikawa, Masafumi Hayakawa, Takashi Ohira, Naoki Sakai, Hiroki Kuniyoshi, Makoto Teramoto
  • Publication number: 20240071231
    Abstract: A human machine interface is configured to select an information display destination from among a plurality of display areas. The HCU acquires a sight line direction of a driver based on an image of an in-vehicle camera. The HCU displays, upon detecting a hop-off action of the driver based on an output signal of an in-vehicle sensor in a situation in which an attention target event such as a puddle, a step, other vehicle or the like exists on a road surface near a door of a driver's seat, in the display area corresponding to the driver's sight line direction, text or an image practically indicating (a) a content of an attention target event or (b) how to deal with a situation.
    Type: Application
    Filed: November 9, 2023
    Publication date: February 29, 2024
    Inventors: Masafumi Nohara, Taro Kobayashi, Natsuko Miyazaki, Keiji Okamoto, Asuka Sakai, Kazuhiro Matsui, Haozhou Li, Jinhae Choi
  • Patent number: 10110009
    Abstract: A power converter apparatus includes a case, a power converter which is in the case and converts input power to predetermined power and output the predetermined power, a first switch positioned in the case and connected to the converter component, a second switch positioned in the case and connected to the converter component, the second switch having a moving component which moves between first and second positions, and a cover which is installed on the case such that the cover covers the first switch and which moves in two mutually different directions relative to the case such that the cover is removed from the case. The cover has a contact portion which makes contact with the moving component of the second switch in the first position and which restricts movement of the cover in one or more of the two directions when the cover is moved in the two directions.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: October 23, 2018
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Yasunori Yamanaka, Masafumi Sakai, Kenshiro Morishita
  • Patent number: 9585293
    Abstract: An inverter includes: a housing base which includes a front area and a rear area opposite to the front area; a main body which is arranged in the front area of the housing base and houses a plurality of electronic components forming a power conversion circuit; a first duct which is arranged in the rear area of the housing base and includes a first end connected to an intake port of cooling air; a first heat sink which is arranged in the rear area of the housing base and includes a first fin and a first heat sink base extending perpendicular to an extension direction of the first duct; and a reactor which is arranged in the heat sink base in the rear area of the housing base, and generates heat at the time of energization.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: February 28, 2017
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Yasunori Yamanaka, Masafumi Sakai, Kenshiro Morishita, Kazunori Nonoyama, Yuichi Sakaguchi
  • Publication number: 20160037677
    Abstract: An inverter includes: a housing base which includes a front area and a rear area opposite to the front area; a main body which is arranged in the front area of the housing base and houses a plurality of electronic components forming a power conversion circuit; a first duct which is arranged in the rear area of the housing base and includes a first end connected to an intake port of cooling air; a first heat sink which is arranged in the rear area of the housing base and includes a first fin and a first heat sink base extending perpendicular to an extension direction of the first duct; and a reactor which is arranged in the heat sink base in the rear area of the housing base, and generates heat at the time of energization.
    Type: Application
    Filed: July 16, 2015
    Publication date: February 4, 2016
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Yasunori YAMANAKA, Masafumi SAKAI, Kenshiro MORISHITA, Kazunori NONOYAMA, Yuichi SAKAGUCHI
  • Publication number: 20160037668
    Abstract: A power converter apparatus includes a case, a power converter which is in the case and converts input power to predetermined power and output the predetermined power, a first switch positioned in the case and connected to the converter component, a second switch positioned in the case and connected to the converter component, the second switch having a moving component which moves between first and second positions, and a cover which is installed on the case such that the cover covers the first switch and which moves in two mutually different directions relative to the case such that the cover is removed from the case. The cover has a contact portion which makes contact with the moving component of the second switch in the first position and which restricts movement of the cover in one or more of the two directions when the cover is moved in the two directions.
    Type: Application
    Filed: July 29, 2015
    Publication date: February 4, 2016
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Yasunori YAMANAKA, Masafumi Sakai, Kenshiro Morishita
  • Publication number: 20130025924
    Abstract: A lead component holder includes a plurality of supporting portions each supporting a lead component at a position distant from a component mounting surface of a substrate, and at least one coupling member coupling the adjacent supporting portions at a position distant from the component mounting surface. An electronic device includes the substrate, the lead component holder, and an electronic component mounted to the substrate located below the coupling member.
    Type: Application
    Filed: June 12, 2012
    Publication date: January 31, 2013
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Kenta SASAHARA, Junya Mizumoto, Masafumi Sakai
  • Patent number: D561095
    Type: Grant
    Filed: April 9, 2007
    Date of Patent: February 5, 2008
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Masafumi Sakai, Kenji Isomoto, Shigekatsu Nagatomo, Takayuki Morihara