Patents by Inventor Gregory H. Johnson

Gregory H. Johnson 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).

  • Slack limiter post
    Patent number: 5421531
    Abstract: A tape cassette includes a base and a cover. A supply reel and a take-up reel are rotatably mounted in the base, and tape is wound around the reels and extends around a guide pin and across a tape path. A slack limiter includes a post mounted in the housing spaced from the guide pin. The post creates a gap through which the tape passes. When the supply reel is not driven, the post prevents the tape from spilling out of the cassette.
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: June 6, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Charles D. Gebeke, Gregory H. Johnson
  • Cartridge door-latching mechanism
    Patent number: 4744530
    Abstract: Door-latching mechanism for a molded plastic cartridge includes a plastic arm projecting from a wall of the cartridge and acting as a cantilevered spring. At the free end of the arm are a door-locking pawl which locks the door when the spring is at rest and unlocks the door when the spring is flexed. When the cartridge is a VHS or Betamax videocassette, upon inserting it into a recorder, a finger of the recorder depresses the arm and with it the door-locking pawl, thus unlocking the pawl and allowing the door to be opened. The arm may either be integral with the cartridge or molded as a separate plastic piece to be attached to the cartridge.
    Type: Grant
    Filed: September 12, 1986
    Date of Patent: May 17, 1988
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Claude E. Cybulski, Gregory H. Johnson
  • Videocassette
    Patent number: D364401
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: November 21, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John A. Bailey, Glenn A. Bloomer, Gregory H. Johnson, Mark J. Ciesko, Donald J. Staufenberg
  • Videocassette
    Patent number: D364402
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: November 21, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John A. Bailey, Glenn A. Bloomer, Gregory H. Johnson, Mark J. Ciesko, Donald J. Staufenberg
  • Videocassette
    Patent number: D364614
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: November 28, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John A. Bailey, Glenn A. Bloomer, Gregory H. Johnson, Mark J. Ciesko, Donald J. Staufenberg
  • Front portion of a top surface for a videocassette
    Patent number: D365812
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: January 2, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Gregory H. Johnson, Mark J. Ciesko
  • Window and label area of a top surface for a videocassette
    Patent number: D365814
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: January 2, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John A. Bailey, Glenn A. Bloomer, Gregory H. Johnson, Donald J. Staufenberg
  • Videocassette
    Patent number: D365815
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: January 2, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Glenn A. Bloomer, Gregory H. Johnson, Mark J. Ciesko, Donald J. Staufenberg
  • Videocassette
    Patent number: D366039
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: January 9, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John A. Bailey, Glenn A. Bloomer, Gregory H. Johnson, Nicholas A. Brawne, Mark J. Ciesko, Donald J. Staufenberg
  • Rear portion of a top surface for a videocassette
    Patent number: D366656
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: January 30, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Gregory H. Johnson, Mark J. Ciesko, Donald J. Staufenberg
  • Window and label area of a top surface for a videocassette
    Patent number: D370480
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: June 4, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John A. Bailey, Glenn A. Bloomer, Gregory H. Johnson, Mark J. Ciesko, Donald J. Staufenberg
  • Window, label and rear area of a top surface for a videocassette
    Patent number: D370906
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: June 18, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John A. Bailey, Glenn A. Bloomer, Gregory H. Johnson, Donald J. Staufenberg
  • Window, label and rear area of a top surface for a videocassette
    Patent number: D370907
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: June 18, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Glenn A. Bloomer, Gregory H. Johnson, Mark J. Ciesko, Donald J. Staufenberg
  • Rear portion of a top surface for a videocassette
    Patent number: D379976
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: June 17, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: David A. Crist, Gregory H. Johnson, Donald J. Staufenberg
  • Window, label and rear area of a top surface for a videocassette
    Patent number: D380746
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: July 8, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John A. Bailey, Glenn A. Bloomer, Gregory H. Johnson, Nicholas A. Brawne, Mark J. Ciesko