Patents by Inventor Kazuo Sakauchi

Kazuo Sakauchi 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).

  • Puller cell
    Patent number: 5749967
    Abstract: A crystal puller cell (18) provides a low particulate environment for an individual crystal puller (28). The airflow within each cell is adjustable so that a particulate level appropriate to the activity within the cell is maintained, thereby avoiding the cost of maintaining an entire growing hall (10) at a constant high level of cleanliness. Each cell includes a multi-level floor (46) that includes an operator floor (48) and a maintenance floor (52). A door (62) at the maintenance floor level opens onto a maintenance aisle used to service the machines. A door (64), at the operator floor level, opens onto a clean aisle for transporting raw material and finished product. The cell walls can include magnetic shielding if a magnetic growing process is used to reduce exposure of operators and other machines to intense magnetic fields.
    Type: Grant
    Filed: September 5, 1996
    Date of Patent: May 12, 1998
    Assignee: SEH America, Inc.
    Inventors: Kazuo Sakauchi, Yoshihiro Hirano, Akira Uchikawa
  • Method of operating a growing hall containing puller cells
    Patent number: 5702522
    Abstract: A crystal puller cell (18) provides a low particulate environment for an individual crystal puller (28). The airflow within each cell is adjustable so that a particulate level appropriate to the activity within the cell is maintained, thereby avoiding the cost of maintaining an entire growing hall (10) at a constant high level of cleanliness. Each cell includes a multi-level floor (46) that includes an operator floor (48) and a maintenance floor (52). A door (62) at the maintenance floor level opens onto a maintenance aisle used to service the machines. A door (64), at the operator floor level, opens onto a clean aisle for transporting raw material and finished product. The cell walls can include magnetic shielding if a magnetic growing process is used to reduce exposure of operators and other machines to intense magnetic fields.
    Type: Grant
    Filed: September 5, 1996
    Date of Patent: December 30, 1997
    Assignee: SEH America, Inc.
    Inventors: Kazuo Sakauchi, Yoshihiro Hirano, Akira Uchikawa
  • Puller cell
    Patent number: 5641354
    Abstract: A crystal puller cell (18) provides a low particulate environment for an individual crystal puller (28). The airflow within each cell is adjustable so that a particulate level appropriate to the activity within the cell is maintained, thereby avoiding the cost of maintaining an entire growing hall (10) at a constant high level of cleanliness. Each cell includes a multilevel floor (46) that includes an operator floor (48) and a maintenance floor (52). A door (62) at the maintenance floor level opens onto a maintenance aisle used to service the machines. A door (64), at the operator floor level, opens onto a clean aisle for transporting raw material and finished product. The cell walls can include magnetic shielding if a magnetic growing process is used to reduce exposure of operators and other machines to intense magnetic fields.
    Type: Grant
    Filed: July 10, 1995
    Date of Patent: June 24, 1997
    Assignee: SEH America, Inc.
    Inventors: Kazuo Sakauchi, Yoshihiro Hirano, Akira Uchikawa