Patents by Inventor Shigeru Inami

Shigeru Inami 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: 20210301872
    Abstract: A sliding member includes a resin overlay layer on a sliding surface side coming into sliding contact with a mating member. The resin overlay layer has a surface roughness parameter Rk satisfying 0.4?Rk?1.2, and a surface area ratio S=S2/S1 calculated when an area of an arbitrary measurement field of view is designated by S1 and a surface area of the measurement field of view is designated by S2 satisfies 2.5?S?4.5.
    Type: Application
    Filed: February 18, 2021
    Publication date: September 30, 2021
    Inventors: Shigeru INAMI, Erina YASUDA, Kenji NIMURA
  • Patent number: 10927887
    Abstract: A resin coating layer has a shape line that indicates the shape of a surface and is divided by virtual straight lines parallel to the X axis and setting an area of recessed sections that protrudes below the virtual straight lines and an area of protruding sections that protrudes above the virtual straight lines. A virtual straight line at a position at which the area totals for the area of recessed sections and the area of protruding sections are equal is defined as the average line for unevenness. Areas that protrude downwards from this average line for unevenness are defined as recessed sections and areas that protrude above this average line for unevenness are defined as protruding sections. The average area Sa for one recessed section is 4-120 ?m2 and the number M of recessed sections between two points having a distance of 1 mm therebetween is 3-20.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: February 23, 2021
    Assignee: DAIDO METAL COMPANY LTD.
    Inventors: Shigeru Inami, Tetsuya Ogawa
  • Patent number: 10823224
    Abstract: A bearing member according to an embodiment of the present invention is formed into a single cylindrical shape or a cylindrical shape divided into arcs along a circumferential direction, and is assembled to a housing on an outer peripheral side of the bearing member. The bearing member includes an outer peripheral surface provided on a side opposed to an inner peripheral surface of the housing. A maximum height Rz (?m) of a surface roughness of the outer peripheral surface is set as 2.00 ?m?Rz?4.00 ?m, and a value of ratio between an average protruding-peak height Rpk (?m) and a load length rate Mr1 (%), that is a load curve parameter for the surface roughness is set as 0.010?Rpk/Mr1?0.100.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: November 3, 2020
    Assignee: DAIDO METAL COMPANY LTD.
    Inventors: Shigeru Inami, Manabu Izumida, Yukihiro Ito, Takahito Nakagawa
  • Patent number: 10808759
    Abstract: A sliding member of the present embodiment includes a bearing alloy layer and a coating layer provided on a sliding surface side thereof. The coating layer has a resin binder with sulfide particles dispersed therein. A covering portion is provided over specific particles and is made of metal oxide comprising the same metal element as a metal element constituting the sulfide particles. When measured by an X-ray photoelectron spectroscopy and an X-ray diffraction method, a ratio of a peak height of the metal oxide to a peak height of metal sulfide by the X-ray photoelectron spectroscopy is from 0.10 to 0.50, and a ratio of the peak height of the metal oxide to the peak height of the metal sulfide by the X-ray diffraction method is 0.10 or less.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: October 20, 2020
    Assignee: DAIDO METAL COMPANY LTD.
    Inventors: Kazuki Sakai, Shigeru Inami, Kenji Nimura
  • Publication number: 20200149582
    Abstract: A bearing member according to an embodiment of the present invention is formed into a single cylindrical shape or a cylindrical shape divided into arcs along a circumferential direction, and is assembled to a housing on an outer peripheral side of the bearing member. The bearing member includes an outer peripheral surface provided on a side opposed to an inner peripheral surface of the housing. A maximum height Rz (?m) of a surface roughness of the outer peripheral surface is set as 2.00 ?m?Rz?4.00 ?m, and a value of ratio between an average protruding-peak height Rpk (?m) and a load length rate Mr1 (%), that is a load curve parameter for the surface roughness is set as 0.010?Rpk/Mr1?0.100.
    Type: Application
    Filed: November 8, 2019
    Publication date: May 14, 2020
    Inventors: Shigeru INAMI, Manabu IZUMIDA, Yukihiro ITO, Takahito NAKAGAWA
  • Publication number: 20200124099
    Abstract: A sliding member of the present embodiment includes a bearing alloy layer and a coating layer provided on a sliding surface side thereof. The coating layer has a resin binder with sulfide particles dispersed therein. A covering portion is provided over specific particles and is made of metal oxide comprising the same metal element as a metal element constituting the sulfide particles. When measured by an X-ray photoelectron spectroscopy and an X-ray diffraction method, a ratio of a peak height of the metal oxide to a peak height of metal sulfide by the X-ray photoelectron spectroscopy is from 0.10 to 0.50, and a ratio of the peak height of the metal oxide to the peak height of the metal sulfide by the X-ray diffraction method is 0.10 or less.
    Type: Application
    Filed: October 16, 2019
    Publication date: April 23, 2020
    Inventors: Kazuki SAKAI, Shigeru INAMI, Kenji NIMURA
  • Patent number: 10018222
    Abstract: A resin coating layer in a sliding member has a surface shape indicated by a shape line. This shape line is divided into recessed sections and protruding sections by an average line for uneven areas. The inclination R of a straight line connecting the bottom of these recessed sections and the peak of these protruding sections is classified into Ra: R<0.02, Rb: 0.02?R?0.04, and Rc: 0.04<R. The sliding member comprises a resin coating layer fulfilling Ra+Rb?50%.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: July 10, 2018
    Assignee: DAIDO METAL COMPANY LTD.
    Inventors: Shigeru Inami, Tetsuya Ogawa, Tadatoshi Nagasaki
  • Publication number: 20180135692
    Abstract: A resin coating layer has a shape line that indicates the shape of a surface and is divided by virtual straight lines parallel to the X axis and setting an area of recessed sections that protrudes below the virtual straight lines and an area of protruding sections that protrudes above the virtual straight lines. A virtual straight line at a position at which the area totals for the area of recessed sections and the area of protruding sections are equal is defined as the average line for unevenness. Areas that protrude downwards from this average line for unevenness are defined as recessed sections and areas that protrude above this average line for unevenness are defined as protruding sections. The average area Sa for one recessed section is 4-120 ?m2 and the number M of recessed sections between two points having a distance of 1 mm therebetween is 3-20.
    Type: Application
    Filed: February 24, 2016
    Publication date: May 17, 2018
    Inventors: Shigeru INAMI, Tetsuya OGAWA
  • Publication number: 20170314614
    Abstract: A resin coating layer in a sliding member has a surface shape indicated by a shape line. This shape line is divided into recessed sections and protruding sections by an average line for uneven areas. The inclination R of a straight line connecting the bottom of these recessed sections and the peak of these protruding sections is classified into Ra: R<0.02, Rb: 0.02?R?0.04, and Rc: 0.04<R. The sliding member comprises a resin coating layer fulfilling Ra+Rb?50%.
    Type: Application
    Filed: February 24, 2016
    Publication date: November 2, 2017
    Inventors: Shigeru INAMI, Tetsuya OGAWA, Tadatoshi NAGASAKI
  • Patent number: 9797446
    Abstract: A slide member is provided with a metal back, a bearing alloy layer disposed over a first surface of the metal back, and a diamond-like carbon layer disposed at least over a second surface of the metal back, the second surface being located on an opposite side of the first surface. The diamond-like carbon layer has a hardness equal to or less than 1000 HV and when subjected to infrared spectroscopy analysis, exhibits absorption wavenumbers of following wavenumbers (1) to (5) originating from different chemical bonding states: wavenumber (1): 2800-3100 cm?1, wavenumber (2): 1500-1800 cm?1, wavenumber (3): 1200-1500 cm?1, wavenumber (4): 3300-3600 cm?1, wavenumber (5): 730-930 cm?1. The relation (P1+P3)/(P1+P2+P3)?0.50 is satisfied when an integrated value of absorption rate with respect to wavenumbers (1), (2), and (3) is represented as peak area values P1, P2, and P3, respectively.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: October 24, 2017
    Assignee: DAIDO METAL COMPANY LTD.
    Inventors: Shigeru Inami, Colin McAleese
  • Patent number: 9677613
    Abstract: A slide member provided with a substrate; and a slide layer provided in a surface side of the substrate is disclosed. The slide layer includes a soft layer in the surface side and a DLC layer in the under surface side of the soft layer. The soft layer has a Young's modulus E ranging from 6 to 30 GPa, hardness Ht ranging from 0.2 to 3.0 GPa, and a value of ratio [E/Ht] of the foregoing ranging from 10 to 30. The DLC layer has a hardness Hd ranging from 5 to 60 GPa.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: June 13, 2017
    Assignee: DAIDO METAL COMPANY LTD.
    Inventors: Shigeru Inami, Colin McAleese, Koji Zushi
  • Publication number: 20160160918
    Abstract: A slide member is provided with a metal back, a bearing alloy layer disposed over a first surface of the metal back, and a diamond-like carbon layer disposed at least over a second surface of the metal back, the second surface being located on an opposite side of the first surface. The diamond-like carbon layer has a hardness equal to or less than 1000 HV and when subjected to infrared spectroscopy analysis, exhibits absorption wavenumbers of following wavenumbers (1) to (5) originating from different chemical bonding states: wavenumber (1): 2800-3100 cm?1, wavenumber (2): 1500-1800 cm?1, wavenumber (3): 1200-1500 cm?1, wavenumber (4): 3300-3600 cm?1, wavenumber (5): 730-930 cm?1. The relation (P1+P3)/(P1+P2+P3)?0.50 is satisfied when an integrated value of absorption rate with respect to wavenumbers (1), (2), and (3) is represented as peak area values P1, P2, and P3, respectively.
    Type: Application
    Filed: December 3, 2015
    Publication date: June 9, 2016
    Inventors: Shigeru INAMI, Colin McALEESE
  • Publication number: 20150226260
    Abstract: A slide member provided with a substrate; and a slide layer provided in a surface side of the substrate is disclosed. The slide layer includes a soft layer in the surface side and a DLC layer in the under surface side of the soft layer. The soft layer has a Young's modulus E ranging from 6 to 30 GPa, hardness Ht ranging from 0.2 to 3.0 GPa, and a value of ratio [E/Ht] of the foregoing ranging from 10 to 30. The DLC layer has a hardness Hd ranging from 5 to 60 GPa.
    Type: Application
    Filed: February 10, 2015
    Publication date: August 13, 2015
    Inventors: Shigeru INAMI, Colin McAleese, Koji ZUSHI
  • Patent number: 9051967
    Abstract: Slide member is provided with an Al-based bearing alloy layer including Al and Si particles, and DLC layer laminated over Al-based bearing alloy layer. At least some of the Si particles included in Al-based bearing alloy layer are exposed on DLC layer side surface.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: June 9, 2015
    Assignee: DAIDO METAL COMPANY LTD.
    Inventors: Shigeru Inami, Koji Zushi, Yukihiko Kagohara
  • Patent number: 9034466
    Abstract: Slide member is provided with an Cu-based bearing alloy layer including hard particles, and DLC layer laminated over Cu-based bearing alloy layer. At least some of the hard particles included in Cu-based bearing alloy layer are exposed on DLC layer side surface.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: May 19, 2015
    Assignee: DAIDO METAL COMPANY LTD.
    Inventors: Koji Zushi, Shigeru Inami, Yukihiko Kagohara
  • Publication number: 20140233875
    Abstract: In this sliding bearing, which is provided with a resin coating layer at the surface of a bearing alloy layer layered at a back metal layer, a PAI that degrades with difficulty at high temperatures is used as the main component as the resin binder of the resin coating layer, adjustment particles are included in the resin binder, and as a result, the compressive strength of the resin coating layer is increased, and indentations of the resin coating layer resulting from a shaft are prevented. Meanwhile, a plate solid lubricant is included in the resin binder, and thus sliding characteristics are improved. Also, delamination due to cracks is prevented by the effect of adjusting the orientation of the solid lubricant and the damming effect of the adjustment particles, and thus superior anti-seizure property is provided even in an engine that frequently repeats starting and stopping.
    Type: Application
    Filed: September 5, 2012
    Publication date: August 21, 2014
    Applicant: DAIDO METAL COMPANY LTD.
    Inventors: Hiroki Kobayakawa, Naohisa Kawakami, Shigeru Inami, Colin McAleese
  • Publication number: 20130121628
    Abstract: Slide member is provided with an Al-based bearing alloy layer including Al and Si particles, and DLC layer laminated over Al-based bearing alloy layer. At least some of the Si particles included in Al-based bearing alloy layer are exposed on DLC layer side surface.
    Type: Application
    Filed: July 7, 2011
    Publication date: May 16, 2013
    Applicant: DAIDO METAL COMPANY LTD.
    Inventors: Shigeru Inami, Koji Zushi, Yukihiko Kagohara
  • Publication number: 20130108198
    Abstract: Slide member is provided with an Cu-based bearing alloy layer including hard particles, and DLC layer laminated over Cu-based bearing alloy layer. At least some of the hard particles included in Cu-based bearing alloy layer are exposed on DLC layer side surface.
    Type: Application
    Filed: July 7, 2011
    Publication date: May 2, 2013
    Applicant: DAIDO METAL COMPANY LTD.
    Inventors: Koji Zushi, Shigeru Inami, Yukihiko Kagohara
  • Publication number: 20130022493
    Abstract: An aluminum alloy bearing includes dispersed Si particles amounting to 1.0 to 10.0 weight % of Si. In such aluminum alloy bearing, relative diffraction intensity of (111) plane of the Si particles is equal to or greater than 0.6.
    Type: Application
    Filed: March 3, 2011
    Publication date: January 24, 2013
    Applicant: DAIDO METAL COMPANY LTD.
    Inventors: Moritaka Fukuda, Tomoyuki Nirasawa, Yukihiko Kagohara, Shigeru Inami
  • Patent number: 7862768
    Abstract: A plain bearing is provided which has an Sn-and-Si-rich layer formed of an Al alloy containing Sn and Si, and a base material which does not contain Sn. The Sn-and-Si-rich layer have the sliding surface having an area ratio of Sn phase grains in a range of 6 to 40% and that of Si phase grains in a range of 5 to 25%.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: January 4, 2011
    Assignee: Daido Metal Company Ltd
    Inventors: Masahito Fujita, Eisaku Inoue, Shigeru Inami