Patents by Inventor Johan ROMAND

Johan ROMAND 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: 12669783
    Abstract: A method is for manufacturing a part including a support provided with at least one hollow filled with an aesthetic element forming a decoration on a face of the part intended to be visible. The method includes providing the support provided with the at least one hollow and providing a preform intended to form the aesthetic element of the part, and inlaying by pressing the preform into the at least one hollow of the support. The preform is made of a crystalline aluminium alloy. The inlaying is carried out at a temperature between the solidus temperature and the liquidus temperature of the crystalline aluminium alloy.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: June 30, 2026
    Assignee: Comadur SA
    Inventors: Johan Romand, Damien Le Boudouil, Nicolas Aubry, Pierry Vuille, Alexandre Netuschill
  • Publication number: 20260177981
    Abstract: A decorated piece including a substrate (1) with a surface (1a) defining a first part with a positive and/or negative relief (2) relative to the plane of the surface (1a) and a second part extending in the plane of the surface (1a), the first or second parts forming a decoration (4), wherein the first part is formed from the substrate (1) made of an amorphous zirconium-based metallic alloy and in that the second part is formed from a ceramic layer (3) deposited on the substrate (1) or, conversely, in that the first part is formed from the ceramic layer (3) deposited on the substrate (1) and in that the second part is formed of the substrate (1) made of the amorphous zirconium-based metallic alloy. Also, a method for manufacturing the decorated piece.
    Type: Application
    Filed: December 8, 2025
    Publication date: June 25, 2026
    Applicant: Comadur SA
    Inventors: Pierry VUILLE, Johan ROMAND
  • Publication number: 20250326051
    Abstract: A method for engraving and texturing an item (1) including a decoration (2) filled at least partially with an enamel (3), the method including a laser ablation step using a femtosecond or picosecond laser on the surface of the enamel (3) and/or within the enamel (3) to produce a structure (7).
    Type: Application
    Filed: March 3, 2025
    Publication date: October 23, 2025
    Applicant: Comadur SA
    Inventors: Johan ROMAND, Bastien COMBOTTE, Pierry VUILLE, Geoffrey RICHERT
  • Publication number: 20250326248
    Abstract: A method for manufacturing an item (1) comprising a through-decoration (2) forming a so-called backlit plique-à-jour enamel, the method including obtaining a blank (5); removing part of the blank (5) from the inner face (5b) of the blank (5) to produce a decoration (2a) that does not pass through to the outer face (5a); depositing, from the inner face (5b), one or more layers of enamel (3) within the non-through decoration (2a); depositing, from the inner face (5b), a layer of luminescent material (4) on the enamel (3); depositing a protective layer (6) on the layer of luminescent material (4); and machining the outer face (5a) to reveal the enamel. Also, the related item.
    Type: Application
    Filed: March 7, 2025
    Publication date: October 23, 2025
    Applicant: Comadur SA
    Inventor: Johan ROMAND
  • Publication number: 20250328110
    Abstract: A method for manufacturing an item (1) including a through-decoration (2) filled with an enamel (3) to form a plique-à-jour enamel. The method includes: obtaining a blank (5) defined with an upper face (5a) and a lower face (5b) opposite the upper face (5a); removing part of the blank (5) from the upper face (5a) to produce a decoration (2a) that does not pass through to the lower face (5b) or, alternatively, in the previous step, obtaining said blank (5) directly with the non-through decoration (2a); depositing one or more layers of enamel (3) within the non-through decoration (2a) and firing the enamel (3) after each 10 layer has been deposited; machining, preferably by grinding, the lower face (5b) to reveal the enamel (3) and thus produce the item (1) with the through-decoration (2) filled with enamel (3).
    Type: Application
    Filed: March 3, 2025
    Publication date: October 23, 2025
    Applicant: Comadur SA
    Inventor: Johan ROMAND
  • Patent number: 12235610
    Abstract: An ornamental part, for example for a timepiece, jewellery or telephone, in particular a watch case middle, and its manufacturing method, the part at least partly including a hard material having a Vickers hardness greater than 1000 HV, the method including the following main steps: a step of producing a precursor from a mixture of at least one powder material with a binder, a step of injecting the precursor into a mould in order to form a green body, a step of sintering the green body in order to form a body of the future part from the hard material, and a step of depositing a polymer material coating on one face of the part, the deposition being carried out by moulding on the body, in particular by injection into a mould, the coating and the hard material being inseparable.
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: February 25, 2025
    Assignee: Comadur SA
    Inventors: Pierry Vuille, Denis Bubendorf, Paulo Arede, Johan Romand
  • Patent number: 11914331
    Abstract: A method is for manufacturing a part including a support made of an electrically non-conductive material, the support being provided with at least one recess filled with an aesthetic element made of an electrically conductive material, and the aesthetic element forms a decoration on a side of the part that is intended to be visible. The method includes inlaying by pressing a preform intended to form the aesthetic element into the at least one recess of the support, and treating the surface of the aesthetic element. The at least one recess opens in one or more places onto a side of the part that is intended to be non-visible, to respectively form one or more contact points for carrying current across the aesthetic element during the surface treatment.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: February 27, 2024
    Assignee: Comadur SA
    Inventors: Johan Romand, Damien Le Boudouil, Nicolas Aubry, Pierry Vuille, Alexandre Netuschill
  • Publication number: 20230288879
    Abstract: An ornamental part, for example for a timepiece, jewellery or telephone, in particular a watch case middle, and its manufacturing method, the part at least partly including a hard material having a Vickers hardness greater than 1000 HV, the method including the following main steps: a step of producing a precursor from a mixture of at least one powder material with a binder, a step of injecting the precursor into a mould in order to form a green body, a step of sintering the green body in order to form a body of the future part from the hard material, and a step of depositing a polymer material coating on one face of the part, the deposition being carried out by moulding on the body, in particular by injection into a mould, the coating and the hard material being inseparable.
    Type: Application
    Filed: May 18, 2023
    Publication date: September 14, 2023
    Applicant: Comadur SA
    Inventors: Pierry VUILLE, Denis BUBENDORF, Paulo AREDE, Johan ROMAND
  • Publication number: 20220192326
    Abstract: A part (21), in particular a wristlet, including at least two sets (1) of elements (3, 5, 7), in particular links, assembled together. The securing between the elements (3, 5, 7) within a set and between sets is implemented via a gluing (15) rather than by a screwing. Also, a related method of manufacturing the part (21).
    Type: Application
    Filed: October 4, 2021
    Publication date: June 23, 2022
    Applicant: Comadur SA
    Inventors: Paulo AREDE, Pierry VUILLE, Johan ROMAND, Maxime DOLE
  • Publication number: 20210389729
    Abstract: An ornamental part, for example for a timepiece, jewellery or telephone, in particular a watch case middle, and its manufacturing method, the part at least partly including a hard material having a Vickers hardness greater than 1000 HV, the method including the following main steps: a step of producing a precursor from a mixture of at least one powder material with a binder, a step of injecting the precursor into a mould in order to form a green body, a step of sintering the green body in order to form a body of the future part from the hard material, and a step of depositing a polymer material coating on one face of the part, the deposition being carried out by moulding on the body, in particular by injection into a mould, the coating and the hard material being inseparable.
    Type: Application
    Filed: May 14, 2021
    Publication date: December 16, 2021
    Applicant: Comadur SA
    Inventors: Pierry VUILLE, Denis BUBENDORF, Paulo AREDE, Johan ROMAND
  • Publication number: 20210240138
    Abstract: A method is for manufacturing a part including a support provided with at least one hollow filled with an aesthetic element forming a decoration on a face of the part intended to be visible. The method includes providing the support provided with the at least one hollow and providing a preform intended to form the aesthetic element of the part, and inlaying by pressing the preform into the at least one hollow of the support. The preform is made of a crystalline aluminium alloy. The inlaying is carried out at a temperature between the solidus temperature and the liquidus temperature of the crystalline aluminium alloy.
    Type: Application
    Filed: June 26, 2019
    Publication date: August 5, 2021
    Applicant: Comadur SA
    Inventors: Johan ROMAND, Damien LE BOUDOUIL, Nicolas AUBRY, Pierry VUILLE, Alexandre NETUSCHILL
  • Publication number: 20210208541
    Abstract: A method is for manufacturing a part including a support made of an electrically non-conductive material, the support being provided with at least one recess filled with an aesthetic element made of an electrically conductive material, and the aesthetic element forms a decoration on a side of the part that is intended to be visible. The method includes inlaying by pressing a preform intended to form the aesthetic element into the at least one recess of the support, and treating the surface of the aesthetic element. The at least one recess opens in one or more places onto a side of the part that is intended to be non-visible, to respectively form one or more contact points for carrying current across the aesthetic element during the surface treatment.
    Type: Application
    Filed: June 18, 2019
    Publication date: July 8, 2021
    Applicant: Comadur SA
    Inventors: Johan ROMAND, Damien LE BOUDOUIL, Nicolas AUBRY, Pierry VUILLE, Alexandre NETUSCHILL