Patents by Inventor Hisanobu Niwa

Hisanobu Niwa 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).

  • Levitation unit with a tilting function and levitation device
    Publication number: 20080122151
    Abstract: A rocking substrate 31 provided with a porous unit 41 is supported by a platform 21 by means of a spherical bearing. Furthermore, air is provided between the platform 21 and the rocking substrate 31 to allow the rocking substrate 31 and the porous unit 41 to rock along a spherical surface. This rocking allows the top surface 12a of an improved levitation unit 12 to tilt freely. When a wavy glass substrate is placed on the levitation device, the top surface 12a of the improved levitation unit 12 tilts, tracing the tilt of the substrate. Jetting air out in this state levitates the substrate, with its top surface 12a in the horizontal state, and allows the levitational force to be reliably applied to the substrate.
    Type: Application
    Filed: March 19, 2007
    Publication date: May 29, 2008
    Applicant: CKD CORPORATION
    Inventors: Masashi Ito, Hisanobu Niwa, Masaki Saito
  • Lubricator
    Patent number: D317315
    Type: Grant
    Filed: March 30, 1989
    Date of Patent: June 4, 1991
    Assignee: CKD Kabushiki Kaisha
    Inventors: Kouichi Miyake, Tatsuaki Aoyama, Hisanobu Niwa
  • Filter
    Patent number: D317346
    Type: Grant
    Filed: March 30, 1989
    Date of Patent: June 4, 1991
    Assignee: CKD Kabushiki Kaisha
    Inventors: Yasuyuki Ito, Tatsuaki Aoyama, Hisanobu Niwa
  • Pressure regulator
    Patent number: D317494
    Type: Grant
    Filed: March 30, 1989
    Date of Patent: June 11, 1991
    Assignee: CKD Kabushiki Kaisha
    Inventors: Kouichi Miyake, Kazuya Hosoda, Hisanobu Niwa
  • Combined pressure regulator filter and lubricator
    Patent number: D317644
    Type: Grant
    Filed: March 30, 1989
    Date of Patent: June 18, 1991
    Assignee: CKD Kabushiki Kaisha
    Inventors: Yasuyuki Ito, Tatsuaki Aoyama, Hisanobu Niwa
  • Rodless cylinder
    Patent number: D317922
    Type: Grant
    Filed: March 30, 1989
    Date of Patent: July 2, 1991
    Assignee: CKD Kabushiki Kaisha (CKD Corporation)
    Inventors: Shigehiro Toyoda, Junji Mutsuura, Masatoshi Shiino, Hisanobu Niwa
  • Combined pressure regulator and filter
    Patent number: D318713
    Type: Grant
    Filed: March 30, 1989
    Date of Patent: July 30, 1991
    Assignee: CKD Kabushiki Kaisha
    Inventors: Kouichi Miyake, Kazuya Hosoda, Hisanobu Niwa
  • Combined rodless fluid pressure cylinder and switch installations
    Patent number: D329434
    Type: Grant
    Filed: March 30, 1989
    Date of Patent: September 15, 1992
    Inventors: Shigehiro Toyoda, Junji Mutsuura, Masatoshi Shiino, Hisanobu Niwa