Patents Assigned to Microwear Corporation
  • Sintered silicon nitride product
    Patent number: 5874377
    Abstract: A microwave susceptor bed useful for sintering ceramics, ceramic composites and metal powders is disclosed. The susceptor bed contains granules of a major amount of a microwave susceptor material, and a minor amount of a refractory parting agent, either dispersed in the susceptor material, or as a coating on the susceptor material. Alumina is the preferred susceptor material. Carbon is the most preferred parting agent. A sintering process using the bed and novel silicon nitride products produced thereby are described.
    Type: Grant
    Filed: February 10, 1997
    Date of Patent: February 23, 1999
    Assignee: Microwear Corporation
    Inventors: Prasad Shrikrishna Apte, Larry Roy Morris
  • Microwave sintering process
    Patent number: 5808282
    Abstract: A microwave susceptor bed useful for sintering ceramics, ceramic composites and metal powders is disclosed. The susceptor bed contains granules of a major amount of a microwave susceptor material, and a minor amount of a refractory parting agent, either dispersed in the susceptor material, or as a coating on the susceptor material. Alumina is the preferred susceptor material. Carbon is the most preferred parting agent. A sintering process using the bed and novel silicon nitride products produced thereby are described.
    Type: Grant
    Filed: April 28, 1997
    Date of Patent: September 15, 1998
    Assignee: Microwear Corporation
    Inventors: Prasad Shrikrishna Apte, Larry Roy Morris
  • Microwave sintering process
    Patent number: 5736092
    Abstract: A microwave susceptor bed useful for sintering ceramics, ceramic composites and metal powders is described. The susceptor bed includes granules of a major amount of a microwave susceptor material, and a minor amount of a refractory parting agent, either dispersed in the susceptor material, or as a coating on the susceptor material. Alumina is the preferred susceptor material. Carbon is the most preferred parting agent. Also described is a sintering process using the bed and to novel silicon nitride products produced thereby.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: April 7, 1998
    Assignee: Microwear Corporation
    Inventors: Prasad Shrikrishna Apte, Larry Roy Morris