Patents by Inventor Yoshinori Ishida

Yoshinori Ishida 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).

  • Patent number: 11104126
    Abstract: A liquid ejection apparatus, an ejection control method, and a liquid ejection head are capable of suppressing shortening of the life of the liquid ejection head and maintaining stable ejection operation. For this purpose, voltage is applied to upper electrodes and counter electrodes so as to make the voltage at the upper electrodes lower than the voltage at the counter electrodes before heat generating resistive elements are driven, and voltage is applied to the upper electrodes and the counter electrodes so as to make the voltage at the upper electrodes higher than the voltage at the counter electrodes at the same time as or after the start of driving of the heat generating resistive elements.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: August 31, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Maki Kato, Yoshinori Misumi, Yuzuru Ishida, Tsubasa Funabashi, Takahiro Matsui
  • Patent number: 10914010
    Abstract: A refrigerant compressor includes: an electric component; and a compression component driven by the electric component to compress a refrigerant. At least one sliding member constituting the compression component is made of a base material (185) that is an iron-based material. An abrasion resistance film (180) including a surface layer constituted by at least fine crystals is formed on a sliding surface of the sliding member. The surface layer (181) includes an A portion in which a component contained most is diiron trioxide (Fe2O3). The A portion exists within a range of at least 0.3 ?m or less from an outermost surface of the sliding surface. The abrasion resistance film (180) may include at least one intermediate layer (182 to 184) located between the surface layer (181) and the base material (185). With this, self-abrasion resistance of the sliding member can be improved, so that the refrigerant compressor having excellent reliability and efficiency can be obtained.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: February 9, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoshinori Ishida, Shingo Oyagi
  • Patent number: 10906380
    Abstract: An evaporator with a cold storage function includes: a plurality of refrigerant tubes which have refrigerant flow paths and which are disposed in parallel with an interval therebetween; and a cold storage material container sandwiched and bonded between adjacent refrigerant tubes among a plurality of the refrigerant tubes and to be filled with a cold storage material, wherein the cold storage material container is formed by superimposing a pair of cold storage plates, each of which includes accommodating concavities to be filled with the cold storage material, and a plurality of convexities are formed with an interval therebetween in standing walls of the accommodating concavities of each of the cold storage plates.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: February 2, 2021
    Assignee: MARELLI CABIN COMFORT JAPAN CORPORATION
    Inventors: Takehito Okada, Sachio Koyama, Takaya Arimoto, Yoshinori Ishida, Kazuo Nakajo
  • Patent number: 10895408
    Abstract: Refrigerant compressor includes electromotive element, and compression element that is driven by electromotive element, includes a slider, and compresses a refrigerant. Freezer oil that lubricates the slider is added with fullerene having a diameter that ranges from 100 pm to 10 nm.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: January 19, 2021
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yoshinori Ishida, Shingo Oyagi
  • Patent number: 10890363
    Abstract: A refrigerant compressor reserves lubricating oil in a sealed container, and accommodates therein an electric component, and a compression component which is driven by the electric component and compresses a refrigerant. At least one of slide members included in the compression component is made of an iron-based material, and an oxide coating film comprising a composition A portion, a composition B portion, and a composition C portion is provided on a slide surface of the iron-based material. The composition A portion is a portion containing diiron trioxide (Fe2O3) which is more in quantity than other substances, and is, for example, an outermost portion (160a). The composition B portion is a portion containing triiron tetraoxide (Fe3O4) which is more in quantity than other substances and containing a silicon (Si) compound, and is, for example, an intermediate portion (160b).
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: January 12, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Shingo Oyagi, Yoshinori Ishida, Hirotaka Kawabata, Hiroyuki Fukuhara
  • Patent number: 10865782
    Abstract: A refrigerant compressor comprises an electric component; and a compression component which is driven by the electric component and compresses a refrigerant. At least one of slide members included in the compression component is made of an iron-based material. An oxide coating film (150) is provided on a slide surface of the iron-based material, the oxide coating film including a first portion (151), a second portion (152), and/or a third portion (153). The first portion (151) contains at least fine crystals (155). The second portion (152) contains columnar grains (156). The third portion (153) contains layered grains (157).
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: December 15, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoshinori Ishida, Shingo Oyagi, Hiroyuki Fukuhara, Hirotaka Kawabata
  • Patent number: 10760563
    Abstract: A refrigerant compressor reserves lubricating oil with a viscosity of VG2 to VG100 in a sealed container, and accommodates therein an electric component and a compression component which is driven by the electric component and compresses a refrigerant. The compression component includes at least one slide member comprising a base material 171 made of an iron-based material and an oxide coating film 170 provided on a surface of the base material 171. The oxide coating film 170 includes: a portion containing diiron trioxide (Fe2O3), in a region which is closer to an outermost surface of the oxide coating film; and a silicon containing portion containing silicon (Si) which is more in quantity than silicon (Si) of the base material 171, in a region which is closer to the base material 171.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: September 1, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoshinori Ishida, Shingo Oyagi, Hiroyuki Fukuhara, Hirotaka Kawabata
  • Publication number: 20200270541
    Abstract: An oxide film (170) is formed on a surface of a base material (175) that is a sintered body constituted by an iron-based material. The oxide film (170) includes a first layer (171), a second layer (172), and a third layer (173). The first layer (171) is located on an outermost surface and is constituted by at least fine crystals. The second layer (172) is located under the first layer (171) and contains columnar structures. The third layer (173) contains columnar structures and is provided on the second layer (172) through an interface (174) so as to be located close to the base material (175). The first layer (171) includes a dense layer (171a). The oxide film (170) can exhibit satisfactory abrasion resistance.
    Type: Application
    Filed: November 27, 2017
    Publication date: August 27, 2020
    Inventors: Shingo OYAGI, Yoshinori ISHIDA, Hirotaka KAWABATA, Hiroto HAYASHI
  • Patent number: 10704541
    Abstract: A slide member of the present invention is used in a slide unit which is included in a refrigerant compressor for compressing a refrigerant and provided inside a sealed container which reserves lubricating oil therein. The slide member is provided with an oxide coating film on a surface of a base material. The oxide coating film is configured such that (1) when the base material comprises an iron based material, the oxide coating film has a three-layer structure including a first layer comprising Fe2O3, a second layer comprising Fe3O4, and a third layer comprising FeO in this order from an outermost surface, (2) the oxide coating film has a dense structure having minute concave/convex portions with a height difference which falls within a range of 0.01 ?m to 0.1 ?m, or (3) when the base material comprises the iron based material, the oxide coating film has a three-layer structure in which the three layers comprise the iron oxides and are different in hardness.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: July 7, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoshinori Ishida, Hirotaka Kawabata, Hiroyuki Fukuhara, Yuichiro Kume, Yoshiyuki Futagami
  • Publication number: 20200056816
    Abstract: The present invention includes: an electric component; a compression component driven by the electric component to compress a refrigerant; and a sealed container accommodating the electric component and the compression component. The compression component includes: a shaft part rotated by the electric component; and a bearing part slidingly contacting the shaft part such that the shaft part is rotatable. A film having hardness equal to or more than hardness of a sliding surface of the bearing part is provided on a sliding surface of the shaft part. The sliding surface of the bearing part includes a curved-surface portion having an inner diameter that continuously increases in a curved shape toward an end of the bearing part in a center axis direction of the bearing part, or the sliding surface of the shaft part includes a curved-surface portion having an outer diameter that continuously decreases in a curved shape toward an end of the shaft part in a center axis direction of the shaft part.
    Type: Application
    Filed: November 16, 2017
    Publication date: February 20, 2020
    Inventors: Yoshinori ISHIDA, Noboru IIDA, Ko INAGAKI, Hiroyuki KAWANO
  • Publication number: 20200056604
    Abstract: A refrigerant compressor includes: an electric component (106); a compression component (107) driven by the electric component to compress a refrigerant; and a sealed container (101) accommodating the electric component and the compression component. The compression component includes: a shaft part (109, 110) rotated by the electric component; and a bearing part (114, 119) slidingly contacting the shaft part such that the shaft part is rotatable. A film (160) having hardness equal to or more than hardness of a sliding surface of the bearing part is provided on a sliding surface of the shaft part. Surface roughness of the sliding surface of the bearing part is smaller than surface roughness of the sliding surface of the shaft part.
    Type: Application
    Filed: November 16, 2017
    Publication date: February 20, 2020
    Inventors: Noboru IIDA, Yoshinori ISHIDA, Ko INAGAKI
  • Publication number: 20190330747
    Abstract: A refrigerant compressor includes: an electric component; and a compression component driven by the electric component to compress a refrigerant. At least one sliding member constituting the compression component is made of a base material (185) that is an iron-based material. An abrasion resistance film (180) including a surface layer constituted by at least fine crystals is formed on a sliding surface of the sliding member. The surface layer (181) includes an A portion in which a component contained most is diiron trioxide (Fe2O3). The A portion exists within a range of at least 0.3 ?m or less from an outermost surface of the sliding surface. The abrasion resistance film (180) may include at least one intermediate layer (182 to 184) located between the surface layer (181) and the base material (185). With this, self-abrasion resistance of the sliding member can be improved, so that the refrigerant compressor having excellent reliability and efficiency can be obtained.
    Type: Application
    Filed: November 27, 2017
    Publication date: October 31, 2019
    Inventors: Yoshinori ISHIDA, Shingo OYAGI
  • Publication number: 20190285063
    Abstract: Inside a sealed container (101) of a refrigerant compressor (100), lubricating oil (103) having a kinematic viscosity at 40° C. of 0.1 mm2/S to 5.1 mm2/S is stored, and an electric element (106) and a compression element (107) are accommodated. The compression element (107) is provided with, as a shaft part, a crankshaft (108) comprising a main shaft (109) and an eccentric shaft (110), and as bearing parts, a main bearing (114) that axially supports the main shaft (109) and an eccentric bearing (119) that axially supports the eccentric shaft (110). At least one surface of the main shaft (109) and the eccentric shaft (110) is subjected to a surface treatment, e.g., formation of an oxide film, having a hardness equal to or greater than that of a bearing part (the main bearing (114) or the eccentric bearing (119)). Satisfactory reliability in sliding parts can thereby be achieved even if lubricating oil having lower viscosity is used.
    Type: Application
    Filed: November 28, 2017
    Publication date: September 19, 2019
    Applicant: Panasonic Appliances Refrigeration Devices Singapore
    Inventors: Yasushi HAYASHI, Hirotaka KAWABATA, Yoshinori ISHIDA, Shingo OYAGI, Terumasa IDE, Akio YAGI, Hironari AKASHI, Hiroto HAYASHI, Kazuhiro YOKOTA, Hiroki TORIMASU
  • Patent number: 10352312
    Abstract: A hermetic compressor (100) includes an electric element (110), a compression element (112), and a hermetic container (102). The compression element includes a shaft (118), a cylinder block (124), a piston (136), a connection section (144), and an oil supply mechanism (130). The piston has a columnar seal section (160) in sliding contact with an inner peripheral face of the cylinder, two extension sections (162) that have circular arc faces each having the same radius as a radius of the seal section and extend from the seal section to the bottom dead center side in the axial direction with a circumferential gap therebetween, and a columnar capture section (164) that extends further toward the bottom dead center side than the extension section and has a smaller radius than the radius of the seal section.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: July 16, 2019
    Assignee: PANASONIC APPLIANCES REFRIGERATION DEVICES SINGAPORE
    Inventors: Ko Inagaki, Masanori Kobayashi, Yu Haraki, Yoshinori Ishida
  • Publication number: 20190077227
    Abstract: An evaporator with a cold storage function (10) includes: a plurality of refrigerant tubes (30) which have refrigerant flow paths (32, 33) and which are disposed in parallel with an interval therebetween; and a cold storage material container (40) sandwiched and bonded between adjacent refrigerant tubes (30, 30) among a plurality of the refrigerant tubes (30) and to be filled with a cold storage material (B), wherein the cold storage material container (40) is formed by superimposing a pair of cold storage plates (41, 41), each of which includes accommodating concavities (46, 47) to be filled with the cold storage material (B), and a plurality of convexities (46b, 47b) are formed with an interval therebetween in standing walls (46a, 47a) of the accommodating concavities (46, 47) of each of the cold storage plates (41).
    Type: Application
    Filed: March 7, 2017
    Publication date: March 14, 2019
    Applicant: CALSONIC KANSEI CORPORATION
    Inventors: Takehito OKADA, Sachio KOYAMA, Takaya ARIMOTO, Yoshinori ISHIDA, Kazuo NAKAJO
  • Publication number: 20190032971
    Abstract: Refrigerant compressor includes electromotive element, and compression element that is driven by electromotive element, includes a slider, and compresses a refrigerant. Freezer oil that lubricates the slider is added with fullerene having a diameter that ranges from 100 pm to 10 nm.
    Type: Application
    Filed: February 10, 2017
    Publication date: January 31, 2019
    Inventors: Yoshinori ISHIDA, Shingo OYAGI
  • Publication number: 20180340527
    Abstract: A refrigerant compressor comprises an electric component; and a compression component which is driven by the electric component and compresses a refrigerant. At least one of slide members included in the compression component is made of an iron-based material. An oxide coating film (150) is provided on a slide surface of the iron-based material, the oxide coating film including a first portion (151), a second portion (152), and/or a third portion (153). The first portion (151) contains at least fine crystals (155). The second portion (152) contains columnar grains (156). The third portion (153) contains layered grains (157).
    Type: Application
    Filed: August 26, 2016
    Publication date: November 29, 2018
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yoshinori ISHIDA, Shingo OYAGI, Hiroyuki FUKUHARA, Hirotaka KAWABATA
  • Publication number: 20180340717
    Abstract: A refrigerant compressor reserves lubricating oil in a sealed container, and accommodates therein an electric component, and a compression component which is driven by the electric component and compresses a refrigerant. At least one of slide members included in the compression component is made of an iron-based material, and an oxide coating film comprising a composition A portion, a composition B portion, and a composition C portion is provided on a slide surface of the iron-based material. The composition A portion is a portion containing diiron trioxide (Fe2O3) which is more in quantity than other substances, and is, for example, an outermost portion (160a). The composition B portion is a portion containing triiron tetraoxide (Fe3O4) which is more in quantity than other substances and containing a silicon (Si) compound, and is, for example, an intermediate portion (160b).
    Type: Application
    Filed: August 26, 2016
    Publication date: November 29, 2018
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Shingo OYAGI, Yoshinori ISHIDA, Hirotaka KAWABATA, Hiroyuki FUKUHARA
  • Publication number: 20180245576
    Abstract: A refrigerant compressor reserves lubricating oil with a viscosity of VG2 to VG100 in a sealed container, and accommodates therein an electric component and a compression component which is driven by the electric component and compresses a refrigerant. The compression component includes at least one slide member comprising a base material 171 made of an iron-based material and an oxide coating film 170 provided on a surface of the base material 171. The oxide coating film 170 includes: a portion containing diiron trioxide (Fe2O3), in a region which is closer to an outermost surface of the oxide coating film; and a silicon containing portion containing silicon (Si) which is more in quantity than silicon (Si) of the base material 171, in a region which is closer to the base material 171.
    Type: Application
    Filed: August 26, 2016
    Publication date: August 30, 2018
    Inventors: Yoshinori ISHIDA, Shingo OYAGI, Hiroyuki FUKUHARA, Hirotaka KAWABATA
  • Publication number: 20180245637
    Abstract: An oxide coating film provided on a surface of an iron-based material which is a base material of a slide member has one of the following configurations: (1) the oxide coating film comprising a portion containing diiron trioxide (Fe2O3), in a region which is closer to an outermost surface of the oxide coating film; and a silicon containing portion containing silicon (Si) which is more in quantity than silicon (Si) of the base material, in a region which is closer to the base material, (2) the oxide coating film comprising: a composition A portion containing diiron trioxide (Fe2O3) which is more in quantity than other substances; a composition B portion containing triiron tetraoxide (Fe3O4) which is more in quantity than other substances and containing a silicon (Si) compound; and a composition C portion containing triiron tetraoxide (Fe3O4) which is more in quantity than other substances and containing silicon (Si) which is more in quantity than silicon (Si) of the composition B portion, and (3) the oxide coa
    Type: Application
    Filed: August 26, 2016
    Publication date: August 30, 2018
    Inventors: Shingo OYAGI, Yoshinori ISHIDA, Hirotaka KAWABATA, Hiroyuki FUKUHARA, Hiroto HAYASHI