Patents by Inventor Naoyukl Shigemoto

Naoyukl Shigemoto 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).

  • Humidifier, filter unit and rotation drive structure
    Patent number: 8500106
    Abstract: A disc-shaped filter unit including a filter main body having a water absorbability and a holder having a non water absorbability is disposed in a vertical orientation, with a part of a circumferential portion thereof immersed in water reserved in a water tank, and is rotated by a rotation drive mechanism in a circumferential direction. The filter unit has an absorptive region and a non-absorptive region arranged adjacent to each other in the circumferential direction. Therefore, in accordance with rotation of the filter unit in the circumferential direction, a state where the absorptive region is immersed and the filter main body of the filter unit absorbs water through a water-conduction hole and a state where the non-absorptive region is immersed and water absorption of the filter main body is prevented by a watertight section having a non water absorbability are continuously alternated.
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: August 6, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tsutomu Tsuda, Yoshihiko Matsubara, Naoyukl Shigemoto, Hiroshi Kitagaito
  • HUMIDIFIER, FILTER UNIT AND ROTATION DRIVE STRUCTURE
    Publication number: 20100201007
    Abstract: A disc-shaped filter unit including a filter main body having a water absorbability and a holder having a non water absorbability is disposed in a vertical orientation, with a part of a circumferential portion thereof immersed in water reserved in a water tank, and is rotated by a rotation drive mechanism in a circumferential direction. The filter unit has an absorptive region and a non-absorptive region arranged adjacent to each other in the circumferential direction. Therefore, in accordance with rotation of the filter unit in the circumferential direction, a state where the absorptive region is immersed and the filter main body of the filter unit absorbs water through a water-conduction hole and a state where the non-absorptive region is immersed and water absorption of the filter main body is prevented by a watertight section having a non water absorbability are continuously alternated.
    Type: Application
    Filed: July 14, 2008
    Publication date: August 12, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Tsutomu Tsuda, Yoshihiko Matsubara, Naoyukl Shigemoto, Hiroshi Kitagaito