Patents by Inventor Daiji Tsuboi

Daiji Tsuboi 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).

  • Electron microscope
    Patent number: 6084239
    Abstract: The electron microscope provides sufficient leg space for an observer sitting in a chair in a working posture and allows concentrated observation and swift operation of the electron microscope without burdening the observer. An electron gun column is supported on a support structure formed in a rectangular parallelepiped. The electron gun column, a column evacuation device and a viewing chamber are mounted on the dampers on the support structure through a vibration plate. The table is mounted on the support structure through table supports provided on the top surface of the support structure. Further, the table has an opening at a location corresponding to the viewing chamber so that the table and the viewing chamber, both mounted on the support structure, are not in contact with each other.
    Type: Grant
    Filed: June 16, 1998
    Date of Patent: July 4, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Tomoyuki Miyata, Atsushi Katayama, Daiji Tsuboi, Hiroyuki Kobayashi, Hisashi Sato, Hiroyuki Kuriyama, Peter Hohmann
  • Electron Microscope
    Patent number: 5864138
    Abstract: The electron microscope provides sufficient leg space for an observer sitting in a chair in a working posture and allows concentrated observation and swift operation of the electron microscope without burdening the observer. An electron gun column is supported on a support structure formed in a rectangular parallelepiped. The electron gun column, a column evacuation device and a viewing chamber are mounted on the dampers on the support structure through a vibration plate. The table is mounted on the support structure through table supports provided on the top surface of the support structure. Further, the table has an opening at a location corresponding to the viewing chamber so that the table and the viewing chamber, both mounted on the support structure, are not in contact with each other.
    Type: Grant
    Filed: September 12, 1996
    Date of Patent: January 26, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Tomoyuki Miyata, Peter Hohmann, Atsushi Katayama, Daiji Tsuboi, Hiroyuki Kobayashi, Hisashi Sato, Hiroyuki Kuriyama
  • Vacuum cleaner
    Patent number: D452758
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: January 1, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Masaru Yokoyama, Hiroaki Nakashima, Daiji Tsuboi, Atsushi Yamaguchi
  • Television receiver
    Patent number: D336641
    Type: Grant
    Filed: July 18, 1991
    Date of Patent: June 22, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Shinichi Uruma, Masahiro Yaezawa, Tadashi Kitashima, Isao Aburatani, Tsutomu Satou, Daiji Tsuboi
  • Television receiver
    Patent number: D342502
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: December 21, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Makoto Fukatsu, Daiji Tsuboi, Tadashi Kitajima, Ryuichirou Tanaka, Fumiyoshi Akiyama
  • Electron microscope
    Patent number: D381031
    Type: Grant
    Filed: July 27, 1995
    Date of Patent: July 15, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Tomoyuki Miyata, Atsushi Katayama, Daiji Tsuboi, Hiroyuki Kobayashi, Hisashi Sato, Sadao Terakado, Peter Hohmann