Patents by Inventor Ali Khatibi

Ali Khatibi 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: 20240068083
    Abstract: The present invention relates to a coating for forming tools to be used in a forming operation of a workpiece material, wherein the coating is deposited on a substrate surface and the coating comprises a lower layer (10) and an upper layer (20), wherein the lower layer (10) is deposited closer to the substrate surface than the upper layer (20), wherein the lower layer (10) mainly comprises chromium nitride, and the upper layer (20) is deposited as multilayer formed by a plurality of A-layers (22) and B-layers (21) deposited alternate one on each other forming a sequence of . . . /A/B/A/B/A/B/ . . . -layers (22,21), wherein the A-layers (22) mainly comprise aluminum titanium nitride, and the B-layers (21) mainly comprise chromium nitride.
    Type: Application
    Filed: December 17, 2021
    Publication date: February 29, 2024
    Inventors: Anders Olof ERIKSSON, Ali KHATIBI
  • Patent number: 11643717
    Abstract: A coated tool for hot stamping of coated or uncoated sheet metals, comprising a coated substrate surface to be in contact with the coated or uncoated metal sheet, wherein the coating in the coated substrate surface comprises one or more inferior layers and one or more superior layers, where the inferior layers are deposited closer to the substrate surface than the superior layers, and: the inferior layers are designed for providing load bearing capacity, the superior layers are designed for providing galling resistance, at least one superior layer is deposited having a multi-nanolayer structure wherein: one type of nanolayer is composed of at least 90 at.-% of chromium and nitrogen, a second type of nanolayer is composed of at least 90 at.-% of titanium, aluminum and nitrogen, a third type of nanolayer is composed of at least 90 at.-% of vanadium carbon and nitrogen.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: May 9, 2023
    Assignee: Oerlikon Surface Solutions AG, Pfäffikon
    Inventors: Ali Khatibi, Hamid Bolvardi, Etienne Billot, Nikolas Schaal, Pascal Schaback, Mirjam Arndt
  • Publication number: 20220106677
    Abstract: Coated tool for hot stamping of coated or uncoated sheet metals, in particular for hot stamping of AlSi- or Zn-coated sheet metals[KM2], comprising a coated substrate surface to be in contact with the coated or uncoated metal sheet, wherein the coating in the coated substrate surface is a multi-layer coating comprising one or more inferior layers and one or more superior layers, where the inferior layers are deposited closer to the substrate surface than the superior layers, whereas: —the inferior layers are designed for providing load bearing capacity, —the superior layers are designed for providing galling resistance, —at least one superior layer (layer 5) is deposited having a multi-nanolayer structure formed by sublayers of the type A, B and C, said three kind of sublayers being nanolayers deposited alternate one on each other forming a sequence of the type . . . A/B/C/A/B/C/A . . .
    Type: Application
    Filed: February 3, 2020
    Publication date: April 7, 2022
    Inventors: Ali KHATIBI, Hamid BOLVARDI, Etienne BILLOT, Nikolas SCHAAL, Pascal SCHABACK, Mirjam ARNDT
  • Publication number: 20220002880
    Abstract: An improved coating used in plastic processing applications including a first layer system that includes at least one corrosion resistant material layer; a second layer system that includes at least one abrasion resistant material layers; and a transition layer provided between the first layer and the second layer. The coating is resistant to both abrasion and corrosion, while maintaining ductility and impact resistance.
    Type: Application
    Filed: November 14, 2019
    Publication date: January 6, 2022
    Applicant: Oerlikon Surface Solutions AG, Pfäffikon
    Inventors: Hamid BOLVARDI, Ali KHATIBI, Jürgen RAMM, Mirjam ARNDT, Florian NEFF
  • Patent number: 10626505
    Abstract: Coatings for metal forming tools or metal forming members used for cold forming of high-strength steels include a CrN lower layer and a TiCN upper layer. The lower layer is deposited closer to the substrate than the upper layer. The lower layer is made of oxygen-enriched chromium nitride exhibiting a cubic structure with preferred orientation, and the upper layer is made of hydrogen-enriched titanium carbonitride. Methods for depositing the coatings are also described.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: April 21, 2020
    Assignee: OERLIKON SURFACE SOLUTIONS AG, PFÄFFIKON
    Inventors: Ali Khatibi, Mirjam Arndt
  • Publication number: 20180237922
    Abstract: Coatings for metal forming tools or metal forming members used for cold forming of high-strength steels include a CrN lower layer and a TiCN upper layer. The lower layer is deposited closer to the substrate than the upper layer. The lower layer is made of oxygen-enriched chromium nitride exhibiting a cubic structure with preferred orientation, and the upper layer is made of hydrogen-enriched titanium carbonitride. Methods for depositing the coatings are also described.
    Type: Application
    Filed: February 19, 2016
    Publication date: August 23, 2018
    Inventors: Ali Khatibi, Mirjam Arndt