Patents by Inventor Akira Takimoto

Akira Takimoto 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).

  • Contact-type magnetic head having an integral control portion for generating negative pressure
    Patent number: 5717551
    Abstract: A magnetic head having a control portion provided integrally with an opposing surface located opposing the recording surface of a magnetic disc or a head mount for generating a negative pressure between the control portion and the magnetic disc to attract the magnetic disc towards the magnetic head, thereby generating an adequate and sufficient negative pressure in the vicinity of the magnetic head and achieving a good head touch. This configuration enables compact design of the mechanism and an increased recording area of the magnetic disc compared with the case in which a magnetic head and a negative pressure generation type stabilizing plate to attract the magnetic disc towards the magnetic head are separately disposed, and eliminates the need for procedures for separate positioning of the individual magnetic head and stabilizing plate, thereby achieving a considerable reduction in manufacturing steps and production cost.
    Type: Grant
    Filed: May 18, 1995
    Date of Patent: February 10, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kenji Negishi, Daisuke Mitsuhashi, Yoshiaki Kato, Akira Takimoto, Noboru Kawasaki
  • Magnetic head having a control portion for generating negative pressure
    Patent number: 5047884
    Abstract: A magnetic head having a control portion provided integrally with an opposing surface located opposing the recording surface of a magnetic disc or a head mount for generating a negative pressure between the control portion and the magnetic disc to attract the magnetic disc towards the magnetic head, thereby generating an adequate and sufficient negative pressure in the vicinity of the magnetic head and achieving a good head touch. This configuration enables compact design of the mechanism and an increased recording area of the magnetic disc compared with the case in which a magnetic head and a negative pressure generation type stabilizing plate to attract the magnetic disc towards the magnetic head are separately disposed, and eliminates the need for procedures for separate positioning of the individual magnetic head and stabilizing plate, thereby achieving a considerable reduction in manufacturing steps and production cost.
    Type: Grant
    Filed: January 5, 1990
    Date of Patent: September 10, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kenji Negishi, Daisuke Mitsuhashi, Yoshiaki Kato, Akira Takimoto, Noboru Kawasaki