Patents by Inventor Yasuaki Matsunaga

Yasuaki Matsunaga 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: 20200377833
    Abstract: A cell picking device includes a sucker having a pipette tip attached to a tip portion of the sucker and is used to suck the cell from a tip of the pipette tip, a driver configured to cause the sucker to perform a suction operation and move the sucker in a horizontal-plane direction and an axial direction of the pipette tip with the sucker inclined with respect to a vertical direction. A controller moves the sucker such that the tip of the pipette tip moves in a horizontal direction while being in contact with a bottom surface of the container installed on the sample mounting stage in a predetermined position on the sample mounting stage to desorb a cell arranged in the predetermined position from the bottom surface of the container, and suck the cell desorbed from the bottom surface of the container from the tip of the pipette tip.
    Type: Application
    Filed: March 16, 2018
    Publication date: December 3, 2020
    Inventors: Takashi INOUE, Kenji TAKAKURA, Yoshitaka NODA, Yasuaki MATSUNAGA, Mika OKADA, Akari TAKEDA
  • Patent number: 10584744
    Abstract: A refrigerant compressor includes a compression mechanism portion, a drive portion, a crankshaft, a main bearing and an auxiliary bearing that support the crankshaft, and a sealed container that accommodates therein the compression mechanism portion, the drive portion, the crankshaft, the main bearing, and the auxiliary bearing. The auxiliary bearing is configured of an antifriction bearing and provided in an auxiliary bearing housing attached to the sealed container. The auxiliary bearing housing includes an opening for inserting the auxiliary bearing on the drive portion side, and includes a housing cover covering the opening. An insulating sleeve configured of an insulating material is provided between the crankshaft and the auxiliary bearing. The insulating sleeve includes a cylinder portion located between the crankshaft and the auxiliary bearing, and a flange portion located between the auxiliary bearing and the housing cover and extended in an outer diameter direction.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: March 10, 2020
    Assignee: Hitachi-Johnson Controls Air Conditioning, Inc.
    Inventors: Yuko Kozuma, Yasuaki Iizuka, Mutsunori Matsunaga, Masaru Ohtahara
  • Patent number: 9926926
    Abstract: A high-pressure pump is comprised of a lower housing, an upper housing and a cover, which are formed independently from each other. Thereby, shapes of the above can be simplified. Although the cylinder and the plunger receive a fuel pressure during a pressurization stroke, the upper housing and the cover do not receive fuel pressure directly from a pressurization chamber. Therefore, the upper housing and the cover can be made thin and light as much as possible.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: March 27, 2018
    Assignee: DENSO CORPORATION
    Inventors: Masatoshi Kuroyanagi, Mamoru Urushizaki, Yasuaki Matsunaga, Shinobu Oikawa, Noriya Matsumoto
  • Patent number: 9840995
    Abstract: During a pressurization stroke of a high-pressure pump, a cylinder inner wall and a plunger receive a fuel pressure from the pressurization chamber. Meanwhile, an upper housing does not receive the fuel pressure from the pressurization chamber, so that its thickness can be made thin. A cylinder is comprised of a bottom portion, a cylindrical portion and a large-diameter cylindrical portion. When inserting the large-diameter cylindrical portion into a large engaging hole, the bottom portion and the cylindrical portion are not brought into contact with a lower housing. A high liquid-tightness between the bottom portion, the cylindrical portion and a small engaging hole can be ensured.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: December 12, 2017
    Assignee: DENSO CORPORATION
    Inventors: Masatoshi Kuroyanagi, Mamoru Urushizaki, Yasuaki Matsunaga
  • Patent number: 9726128
    Abstract: During a pressurization stroke of a high-pressure pump, a cylinder inner wall and a plunger receive a fuel pressure from the pressurization chamber. Meanwhile, an upper housing does not receive the fuel pressure from the pressurization chamber, so that its thickness can be made thin. A cylinder is comprised of a bottom portion, a cylindrical portion and a large-diameter cylindrical portion. When inserting the large-diameter cylindrical portion into a large engaging hole, the bottom portion and the cylindrical portion are not brought into contact with a lower housing. A high liquid-tightness between the bottom portion, the cylindrical portion and a small engaging hole can be ensured.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: August 8, 2017
    Assignee: DENSO CORPORATION
    Inventors: Masatoshi Kuroyanagi, Mamoru Urushizaki, Yasuaki Matsunaga
  • Publication number: 20160115953
    Abstract: A high-pressure pump is comprised of a lower housing, an upper housing and a cover, which are formed independently from each other. Thereby, shapes of the above can be simplified. Although the cylinder and the plunger receive a fuel pressure during a pressurization stroke, the upper housing and the cover do not receive fuel pressure directly from a pressurization chamber. Therefore, the upper housing and the cover can be made thin and light as much as possible.
    Type: Application
    Filed: January 6, 2016
    Publication date: April 28, 2016
    Inventors: Masatoshi Kuroyanagi, Mamoru Urushizaki, Yasuaki Matsunaga, Shinobu Oikawa, Noriya Matsumoto
  • Patent number: 9261061
    Abstract: A high-pressure pump is comprised of a lower housing, an upper housing and a cover, which are formed independently from each other. Thereby, shapes of the above can be simplified. Although the cylinder and the plunger receive a fuel pressure during a pressurization stroke, the upper housing and the cover do not receive fuel pressure directly from a pressurization chamber. Therefore, the upper housing and the cover can be made thin and light as much as possible.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: February 16, 2016
    Assignee: DENSO CORPORATION
    Inventors: Masatoshi Kuroyanagi, Mamoru Urushizaki, Yasuaki Matsunaga, Shinobu Oikawa, Noriya Matsumoto
  • Publication number: 20150139825
    Abstract: During a pressurization stroke of a high-pressure pump, a cylinder inner wall and a plunger receive a fuel pressure from the pressurization chamber. Meanwhile, an upper housing does not receive the fuel pressure from the pressurization chamber, so that its thickness can be made thin. A cylinder is comprised of a bottom portion, a cylindrical portion and a large-diameter cylindrical portion. When inserting the large-diameter cylindrical portion into a large engaging hole, the bottom portion and the cylindrical portion are not brought into contact with a lower housing. A high liquid-tightness between the bottom portion, the cylindrical portion and a small engaging hole can be ensured.
    Type: Application
    Filed: January 30, 2015
    Publication date: May 21, 2015
    Inventors: Masatoshi Kuroyanagi, Mamoru Urushizaki, Yasuaki Matsunaga
  • Publication number: 20120247591
    Abstract: A high-pressure pump is comprised of a lower housing, an upper housing and a cover, which are formed independently from each other. Thereby, shapes of the above can be simplified. Although the cylinder and the plunger receive a fuel pressure during a pressurization stroke, the upper housing and the cover do not receive fuel pressure directly from a pressurization chamber. Therefore, the upper housing and the cover can be made thin and light as much as possible.
    Type: Application
    Filed: March 29, 2012
    Publication date: October 4, 2012
    Applicant: DENSO CORPORATION
    Inventors: Masatoshi KUROYANAGI, Mamoru Urushizaki, Yasuaki Matsunaga, Shinobu Oikawa, Noriya Matsumoto
  • Publication number: 20120251363
    Abstract: During a pressurization stroke of a high-pressure pump, a cylinder inner wall and a plunger receive a fuel pressure from the pressurization chamber. Meanwhile, an upper housing does not receive the fuel pressure from the pressurization chamber, so that its thickness can be made thin. A cylinder is comprised of a bottom portion, a cylindrical portion and a large-diameter cylindrical portion. When inserting the large-diameter cylindrical portion into a large engaging hole, the bottom portion and the cylindrical portion are not brought into contact with a lower housing. A high liquid-tightness between the bottom portion, the cylindrical portion and a small engaging hole can be ensured.
    Type: Application
    Filed: March 29, 2012
    Publication date: October 4, 2012
    Applicant: DENSO CORPORATION
    Inventors: Masatoshi KUROYANAGI, Mamoru Urushizaki, Yasuaki Matsunaga
  • Patent number: 6330166
    Abstract: In an electronic-component mounting structure, an electronic component (2) has a surface. First electrodes (1) provided on the surface of the electronic component (2) are arranged in a first array. Second electrodes (3) provided on a base board (4) are arranged in a second array corresponding to the first array. The second electrodes (3) correspond to the first electrodes (1) respectively. Solder bumps (9) connect the first electrodes (1) and the second electrodes (3) respectively. The first electrodes (1) include first outermost electrodes (1b) located in an outer area of the first array. The second electrodes (3) include second outermost electrodes (3b, 3c) located in an outer area of the second array. The second outermost electrodes (3b, 3c) correspond to the first outermost electrodes (1b) respectively.
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: December 11, 2001
    Assignee: Denso Corporation
    Inventors: Masayuki Aoyama, Yasuaki Matsunaga, Tomoyuki Hiramatsu, Naoyuki Akita, Koji Kondo