Patents by Inventor Peter Johannus Leussink

Peter Johannus Leussink 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).

  • Methods of manufacturing silicon blades for shaving razors
    Patent number: 9808944
    Abstract: Methods are provided for the manufacture of razor blades from silicon material. In some implementations, the method includes aligning a mono-crystalline silicon wafer comprising a {100} surface at an angle where {111} planes intersect the {100} surface parallel and perpendicular to the wafer; etching the mono-crystalline silicon wafer to expose an {111} plane and a second plane to provide a blade edge having between about a 20 degree included blade angle and about a 35 degree included blade angle; applying a hard coating on the blade edge; providing a radius of curvature of the blade edge between about 20 nanometers and about 100 nanometers after deposition of the hard coating; applying a soft coating on the blade edge; and removing the razor blade from the mono-crystalline silicon wafer.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: November 7, 2017
    Assignee: The Gillette Company LLC
    Inventors: Graham John Simms, Peter Johannus Leussink, Neville Sonnenberg
  • Methods Of Manufacturing Silicon Blades For Shaving Razors
    Publication number: 20150360376
    Abstract: Methods are provided for the manufacture of razor blades from silicon material. In some implementations, the method includes aligning a mono-crystalline silicon wafer comprising a {100} surface at an angle where {111} planes intersect the {100} surface parallel and perpendicular to the wafer; etching the mono-crystalline silicon wafer to expose an {111} plane and a second plane to provide a blade edge having between about a 20 degree included blade angle and about a 35 degree included blade angle; applying a hard coating on the blade edge; providing a radius of curvature of the blade edge between about 20 nanometers and about 100 nanometers after deposition of the hard coating; applying a soft coating on the blade edge; and removing the razor blade from the mono-crystalline silicon wafer.
    Type: Application
    Filed: June 17, 2014
    Publication date: December 17, 2015
    Inventors: Graham John Simms, Peter Johannus Leussink, Neville Sonnenberg