Patents by Inventor Masakazu Nagata

Masakazu Nagata 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: 20210080164
    Abstract: A cooling apparatus includes a compressor, a first flow path and a second flow path branched from a branch point, a condenser disposed downstream of the branch point in the first flow path, a first decompressor disposed downstream of the condenser, a plurality of evaporators disposed downstream of the first decompressor and connected in series, a second decompressor disposed downstream of the branch point in the second flow path, a detection unit, and a control unit. The second flow path includes a hot-gas flow path configured to connect an outlet of the second decompressor and a meeting point with the first flow path. The control unit controls a degree of opening of the second decompressor depending on the temperature detected by the first temperature-detection unit and controls a degree of opening of the first decompressor depending on the temperature and/or the pressure detected by the detection unit.
    Type: Application
    Filed: November 24, 2020
    Publication date: March 18, 2021
    Inventors: Hitoshi ISHIHAMA, Masakazu NAGATA, Yuusuke SUZUKI
  • Patent number: 10236608
    Abstract: In an electrical connector for circuit boards or blades, a holding portion formed in a housing has, for each blade, holding grooves that hold the front portions of the blades, and at least one of the above-mentioned multiple blades is fixedly secured in place within one of the corresponding holding grooves while the rest of the blades are made movable through a small gap within the respective corresponding holding grooves. With this arrangement, the fixed blade may be used as a reference while the other blades are free to move slightly during a mating step. In addition, such blade securement may be of use of resilient latches (19) positioned at both ends of each blade (20). At engagement to a mating connector, housing portion (75) of the housing is to provide support for ends of the blades (20).
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: March 19, 2019
    Assignee: HIROSE ELECTRIC CO., LTD.
    Inventors: Masakazu Nagata, Atsushi Matsuzawa
  • Publication number: 20180076547
    Abstract: In an electrical connector for circuit boards, a holding portion formed in a housing has, for each blade, holding grooves that hold the front portions of the blades, and at least one of the above-mentioned multiple blades is fixedly secured in place within one of the corresponding holding grooves while the rest of the blades are made movable within the respective corresponding holding grooves.
    Type: Application
    Filed: August 29, 2017
    Publication date: March 15, 2018
    Inventors: Masakazu NAGATA, Atsushi MATSUZAWA
  • Patent number: 9608347
    Abstract: In a housing 10 are formed holding grooves 17A to 17D that permit arm-use blades 20A-1 to 20D-1 of various types of blades 20A to 20D to be inserted from the rear, connection components 33A-1 to 33D-1 provided to the lower ends of legs 33A to 33D of conductive bar members 30A to 30D of the various types of blades 20A to 20D are located outside the housing, the arm-use blades 20A-1 to 20D-1 of the various types of blades 20A to 20D are able to move in the vertical direction over a specific range within the corresponding holding grooves 17A to 17D, and the various types of blades 20A to 20D are able to move within a holding space 17.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: March 28, 2017
    Assignee: HIROSE ELECTRIC CO., LTD.
    Inventors: Masakazu Nagata, Atsushi Matsuzawa
  • Publication number: 20160322722
    Abstract: In a housing 10 are formed holding grooves 17A to 17D that permit arm-use blades 20A-1 to 20D-1 of various types of blades 20A to 20D to be inserted from the rear, connection components 33A-1 to 33D-1 provided to the lower ends of legs 33A to 33D of conductive bar members 30A to 30D of the various types of blades 20A to 20D are located outside the housing, the arm-use blades 20A-1 to 20D-1 of the various types of blades 20A to 20D are able to move in the vertical direction over a specific range within the corresponding holding grooves 17A to 17D, and the various types of blades 20A to 20D are able to move within a holding space 17.
    Type: Application
    Filed: April 26, 2016
    Publication date: November 3, 2016
    Inventors: Masakazu NAGATA, Atsushi MATSUZAWA
  • Patent number: 9257779
    Abstract: An intermediate connection electrical connector includes a plurality of blades and a supporting member for supporting the blades arranged in an arrangement direction. The supporting member includes a surrounding wall portion for surrounding the blades and a regulating portion for positioning the blades. The surrounding wall portion includes a side wall portion and an edge wall portion. The side wall portion is at least partially formed of an electromagnetic wave absorbing material. The regulating portion is disposed inside the surrounding wall portion to define a blade accommodating space for accommodating the blades.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: February 9, 2016
    Assignee: Hirose Electric Co., Ltd.
    Inventors: Nobuhiro Tamai, Toshiyuki Takada, Kunia Aihara, Jeremy Huang, Masakazu Nagata
  • Publication number: 20140295702
    Abstract: An intermediate connection electrical connector includes a plurality of blades and a supporting member for supporting the blades arranged in an arrangement direction. The supporting member includes a surrounding wall portion for surrounding the blades and a regulating portion for positioning the blades. The surrounding wall portion includes a side wall portion and an edge wall portion. The side wall portion is at least partially formed of an electromagnetic wave absorbing material. The regulating portion is disposed inside the surrounding wall portion to define a blade accommodating space for accommodating the blades.
    Type: Application
    Filed: March 26, 2014
    Publication date: October 2, 2014
    Applicant: Hirose Electric Co., Ltd.
    Inventors: Nobuhiro TAMAI, Toshiyuki TAKADA, Kunia AIHARA, Jeremy HUANG, Masakazu NAGATA
  • Patent number: 8357013
    Abstract: The present invention involves connectors for reducing Far-End Crosstalk (FEXT) through the use of novel polarity swapping to negate the cumulative effect of FEXT. Skew adjustment is used to improve the FEXT cancellation from polarity swapping. The polarity reversal location or locations among FEXT sources are optimized to achieve maximum FEXT cancellation. The novelty polarity swapping technique can be applied to a wide variety of connectors, such as mezzanine connectors, backplane connectors, and any other connectors that can benefit from FEXT reduction.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: January 22, 2013
    Assignee: Hirose Electric Co., Ltd.
    Inventors: Tatsuya Arai, Ching-Chao Huang, Clement Kam Lam Luk, Jeremy Buan, Tsutomu Matsuo, Toshiyuki Takada, Masakazu Nagata
  • Publication number: 20100184307
    Abstract: The present invention involves connectors for reducing Far-End Crosstalk (FEXT) through the use of novel polarity swapping to negate the cumulative effect of FEXT. Skew adjustment is used to improve the FEXT cancellation from polarity swapping. The polarity reversal location or locations among FEXT sources are optimized to achieve maximum FEXT cancellation. The novelty polarity swapping technique can be applied to a wide variety of connectors, such as mezzanine connectors, backplane connectors, and any other connectors that can benefit from FEXT reduction.
    Type: Application
    Filed: November 5, 2009
    Publication date: July 22, 2010
    Applicant: Hirose Electric USA Inc.
    Inventors: Tatsuya Arai, Ching-Chao Huang, Clement Kam Lam Luk, Jeremy Buan, Tsutomu Matsuo, Toshiyuki Takada, Masakazu Nagata
  • Publication number: 20100183141
    Abstract: The present invention involves chip-to-chip communication systems for reducing Far-End Crosstalk (FEXT) through the use of novel polarity swapping to negate the cumulative effect of FEXT. Skew adjustment is used to improve the FEXT cancellation from polarity swapping. The polarity reversal location or locations among FEXT sources are optimized to achieve maximum FEXT cancellation. The novelty polarity swapping technique can be applied to a wide variety of systems that can benefit from FEXT reduction.
    Type: Application
    Filed: November 5, 2009
    Publication date: July 22, 2010
    Applicant: Hirose Electric USA Inc.
    Inventors: Tatsuya Arai, Ching-Chao Huang, Clement Kam Lam Luk, Jeremy Buan, Tsutomu Matsuo, Toshiyuki Takada, Masakazu Nagata
  • Patent number: 7520756
    Abstract: A middle electrical connector includes a plurality of terminals disposed on a terminal arrangement plate. A housing holds the terminal arrangement plate. The terminal arrangement plate has retaining grooves to hold the terminals at a plurality of positions. The retaining grooves includes a front retaining groove and a back retaining groove having at least one of a shape or a size different with each other. The front retaining groove holds a front retained portion of the terminal on a front portion side. The rear retaining groove holds a rear retained portion of the terminal on a rear portion side. When the terminal is inserted, the front retained portion is allowed to pass through the rear retaining groove.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: April 21, 2009
    Assignee: Hirose Electric Co., Ltd.
    Inventor: Masakazu Nagata
  • Publication number: 20090068902
    Abstract: A middle electrical connector includes a plurality of terminals disposed on a terminal arrangement plate. A housing holds the terminal arrangement plate. The terminal arrangement plate has retaining grooves to hold the terminals at a plurality of positions. The retaining grooves includes a front retaining groove and a back retaining groove having at least one of a shape or a size different with each other. The front retaining groove holds a front retained portion of the terminal on a front portion side. The rear retaining groove holds a rear retained portion of the terminal on a rear portion side. When the terminal is inserted, the front retained portion is allowed to pass through the rear retaining groove.
    Type: Application
    Filed: November 29, 2007
    Publication date: March 12, 2009
    Inventor: Masakazu Nagata
  • Patent number: 7392726
    Abstract: In a ratchet wrench, a frictional force generation mechanism including a first guide bush and a disc spring is attached to a shank with a locking pin to form a shank assembly. Spring force of the disc spring acts only on the inside of the shank assembly. The shank assembly is inserted from a central space of a first annular hold portion toward a second annular hold portion, and the shank is held by an inner wall of the second annular hold portion. In the back side on which the shank assembly is inserted, the drop-out of the shank assembly from the central space side of the first annular hold portion is prevented by a snap ring attached to a groove of the first annular hold portion. With this arrangement, constant friction is applied to the shank.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: July 1, 2008
    Assignee: KTS Co., Ltd.
    Inventor: Masakazu Nagata
  • Patent number: D559855
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: January 15, 2008
    Assignee: Brother Industries, Ltd.
    Inventors: Yukihiko Sato, Masanori Oda, Akira Fujiwara, Masakazu Nagata
  • Patent number: D611420
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: March 9, 2010
    Assignee: Hirose Electric Co., Ltd.
    Inventors: Toshiyuki Takada, Masakazu Nagata
  • Patent number: D611421
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: March 9, 2010
    Assignee: Hirose Electric Co., Ltd.
    Inventors: Toshiyuki Takada, Masakazu Nagata
  • Patent number: D611905
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: March 16, 2010
    Assignee: Hirose Electric Co., Ltd.
    Inventors: Toshiyuki Takada, Masakazu Nagata
  • Patent number: D611906
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: March 16, 2010
    Assignee: Hirose Electric Co., Ltd.
    Inventors: Toshiyuki Takada, Masakazu Nagata
  • Patent number: D611907
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: March 16, 2010
    Assignee: Hirose Electric Co., Ltd.
    Inventors: Toshiyuki Takada, Masakazu Nagata
  • Patent number: D611908
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: March 16, 2010
    Assignee: Hirose Electric Co., Ltd.
    Inventors: Toshiyuki Takada, Masakazu Nagata