Patents by Inventor Yoshio Tohyama

Yoshio Tohyama 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).

  • Image forming apparatus
    Patent number: 5343223
    Abstract: An image forming apparatus having a sheet storing unit for storing sheets therein along a bottom of a body of the apparatus, a sheet feeding mechanism for feeding the sheets stored in the sheet storing unit one by one toward a rear side of the body, a sheet path for leading each sheet fed by the sheet feeding mechanism upward, an image forming unit for forming an image on the sheet traveling in the sheet path, and a sheet ejecting unit for ejecting the image-formed sheet toward a front side of the body onto a sheet receiving portion disposed on an upper side of the body. The image forming unit is made as a cartridge containing a photosensitive member, a developing device, a transferring device and a cleaner. The cartridge is mounted in a holder which is movable between a cartridge exchange position and a set position.
    Type: Grant
    Filed: November 20, 1991
    Date of Patent: August 30, 1994
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Yoshio Tohyama, Takayuki Ogawa, Tatsuya Eguchi, Norio Tamada, Satoshi Yoshida, Hirofumi Hasegawa, Hitoshi Sekino, Katsuyuki Taima, Akihito Ikegawa, Kazuyoshi Hara, Yasuhiro Matsuura, Hiroshi Mizuno
  • Thermal transfer recording apparatus and inked film cassette therefor
    Patent number: 4973983
    Abstract: A thermal transfer recording apparatus permitting detachable disposition therein of an inked film cassette provided with a takeup reel holding part and a supply reel holding part. In the inked film cassette, the takeup reel holding part disposed at one end thereof and the supply reel holding part disposed at the other end thereof protrude in mutually opposite directions from the cassette casing.
    Type: Grant
    Filed: February 22, 1989
    Date of Patent: November 27, 1990
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Junichi Yamamoto, Yasukuni Omata, Yoshio Tohyama, Akihiko Onuma, Iwao Fujii
  • Thermal transfer printing apparatus
    Patent number: 4962387
    Abstract: A multi-color thermal transfer printing apparatus having a platen roller rotatable in opposite directions with a recording medium driven to travel on the platen roller and a continuous length of carrier medium driven to travel in conjunction with the recording medium on the platen roller so that the carrier medium may be in contact with the recording medium, the carrier medium having a series of areas carrying differently colored inks. A thermal print head is movable between an inoperative position spaced apart from the platen roller and an operative position having the carrier medium pressed against the recording medium on the platen roller and operative to form an image on the recording medium by thermal transfer of an ink from one of the colored areas of the carrier medium to the recording medium.
    Type: Grant
    Filed: May 23, 1989
    Date of Patent: October 9, 1990
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Junichi Yamamoto, Yoshio Tohyama, Masahiro Shiigi