Patents by Inventor Junji Tsunekawa

Junji Tsunekawa 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).

  • Printing method and printing apparatus, laser output control device and control device and control method for printing apparatus, and printing register control device for printing apparatus
    Patent number: 6559874
    Abstract: A driving means 6 is placed below a photoconductor drum 2. The driving means 6 includes first to fourth developing rollers 13A-13D and toner storage chambers 11A-11D. The developing means 6 can be shifted by a developing-device moving motor 9 to bring one of the developing rollers 13A-13D which corresponds to one of liquid toners 12A-12D to be developed in close to the photoconductor drum 2, followed by developing a latent image formed by an exposure. At this time, the distance between one of the developing rollers 13A-13D and the photoconductor drum 2 can be appropriately adjusted. In addition, before the development, meniscus of the liquid toner is quickly formed between the developing rollers 13A-13D and the photoconductor drum 2 by rotating the development rollers 13A-13 at the rotation speed higher than the rotation speed thereof at the development.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: May 6, 2003
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Tamihiko Tanaka, Makoto Hayashi, Mitsuhiko Iida, Junji Tsunekawa, Yoshihiko Butsusaka
  • Printing method and printing apparatus, laser output control device and control method for printing apparatus, and printing register control device for printing apparatus
    Publication number: 20020101493
    Abstract: A driving means 6 is placed below a photoconductor drum 2. The driving means 6 includes first to fourth developing rollers 13A-13D and toner storage chambers 11A-11D. The developing means 6 can be shifted by a developing-device moving motor 9 to bring one of the developing rollers 13A-13D which corresponds to one of liquid toners 12A-12D to be developed in close to the photoconductor drum 2, followed by developing a latent image formed by an exposure. At this time, the distance between one of the developing rollers 13A-13D and the photoconductor drum 2 can be appropriately adjusted. In addition, before the development, meniscus of the liquid toner is quickly formed between the developing rollers 13A-13D and the photoconductor drum 2 by rotating the development rollers 13A-13 at the rotation speed higher than the rotation speed thereof at the development.
    Type: Application
    Filed: January 30, 2002
    Publication date: August 1, 2002
    Inventors: Tamihiko Tanaka, Makoto Hayashi, Mitsuhiko Iida, Junji Tsunekawa, Yoshihiko Butsusaka