Patents by Inventor Yoji Sasai

Yoji Sasai 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).

  • Publication number: 20090024542
    Abstract: The system of the present invention is configured to online support the operation of a device using an expendable under restriction of refill. The system receives device information regarding identification of a model of the device and expendable information including a degree of consumption of the expendable from the device via a network, and estimates an operating status of the device under restriction of the refill of the expendable according to the received device information and the received expendable information. The system generates device support information relating to the operation of the device under restriction of the refill of the expendable based on the estimated operating status of the device, and outputs the generated device support information via the network. The arrangement of this system desirably relieves both the user load and the support load in maintenance and support of the device.
    Type: Application
    Filed: July 16, 2008
    Publication date: January 22, 2009
    Applicant: Seiko Epson Corporation
    Inventors: Minoru Tanaka, Yoji Sasai, Etsuo Tsuji
  • Patent number: 7182337
    Abstract: A paper feed unit includes a hopper on which sheets are stacked and which is turned around a rotation shaft. The hopper is turned to move apart from or move to a paper feed roller. The paper feed unit has three modes: a large release mode in which the hopper is turned to be most apart from the paper feed roller, a non-release mode in which the printing sheet is abutted against the paper feed roller, and a small release mode in which the printing sheet, is slightly separated from the paper feed roller, and is at a medium level between the above two modes. When a paper feeding job is still present, a state that the uppermost printing sheet is slightly separated from the paper feed roller is retained by the small release mode, whereby a swing range of the hopper is minimized.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: February 27, 2007
    Assignee: Seiko Epson Corporation
    Inventors: Yoji Sasai, Norihiro Yamashita, Yoichi Kobayashi, Hirotomo Tanaka
  • Patent number: 7182336
    Abstract: A paper feed unit includes a hopper on which sheets are stacked and which is turned around a rotation shaft. The hopper is turned to move apart from or move to a paper feed roller. The paper feed unit has three modes: a large release mode in which the hopper is turned to be most apart from the paper feed roller, a non-release mode in which the printing sheet is abutted against the paper feed roller, and a small release mode in which the printing sheet is slightly separated from the paper feed roller, and is at a medium level between the above two modes. When a paper feeding job is still present, a state that the uppermost printing sheet is slightly separated from the paper feed roller is retained by the small release mode, whereby a swing range of the hopper is minimized.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: February 27, 2007
    Assignee: Seiko Epson Corporation
    Inventors: Toru Fukushima, Kazuhisa Kawakami, Masafumi Furuyama, Yoji Sasai, Norihiro Yamashita, Yoichi Kobayashi, Hirotomo Tanaka
  • Publication number: 20060203293
    Abstract: If a scanner and a desktop printer are stacked, the occupied space is reduced. However, in the printer unit below the scanner unit, the operationality such as feeding papers may be reduced and the access to the inside may not easy in doing maintenance. In the structure in which the scanner unit is fixedly placed on the top of the printer, the scanner printer multi-function apparatus has a sliding mechanism for sliding back and forth as means for connecting the scanner unit and a printer unit. Fixing positions are provided on at least two points back and forth. Each of the positions can be freely and easily selected. At the backward position, the scanner unit and the printer unit are stacked like a multitiered box so that the space occupied by the whole of the apparatus can be minimized, while at the forward position, the backward paper feeding opening is opened so that the operationality of the printer unit can be improved.
    Type: Application
    Filed: March 10, 2006
    Publication date: September 14, 2006
    Applicant: Seiko Epson Corporation
    Inventors: Takuya Yasue, Yoji Sasai
  • Patent number: 7101096
    Abstract: A transferring tray for a printing apparatus for printing on one major surface of a recording media having disc shape, wherein the printing apparatus includes, a carriage having a printing head, reciprocating in a main scanning direction, a transferring unit transferring the recording media in a sub scanning direction, a detecting unit detecting the recording media being transferred by the transferring unit, and a recording unit printing on the one major surface of the recording media, the transferring tray including: a tray body having a rectangular plate shape made of a material which is not detected by the detecting unit; a detected portion formed on either one of two major surfaces of the tray body, being detectable by the detecting unit; and a mounting portion having a mounting recess such that the one major surface of the recording media comes up to substantially same level as one of the major surfaces of the tray body when the recording media is mounted on the transferring tray.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: September 5, 2006
    Assignee: Seiko Epson Corporation
    Inventors: Yoji Sasai, Masaki Shimomura, Masahiro Isono, Mamoru Ukita, Hiroshi Asawa, Kenjiro Ishihara, Koji Hashiuchi, Kazuo Otsuka, Hiroyuki Tajima
  • Patent number: 6880822
    Abstract: A paper feed unit includes a hopper on which sheets are stacked and which is turned around a rotation shaft. The hopper is turned to move apart from or move to a paper feed roller. The paper feed unit has three modes: a large release mode in which the hopper is turned to be most apart from the paper feed roller, a non-release mode in which the printing sheet is abutted against the paper feed roller, and a small release mode in which the printing sheet is slightly separated from the paper feed roller, and is at a medium level between the above two modes. When a paper feeding job is still present, a state that the uppermost printing sheet is slightly separated from the paper feed roller is retained by the small release mode, whereby a swing range of the hopper is minimized.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: April 19, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Toru Fukushima, Kazuhisa Kawakami, Masafumi Furuyama, Yoji Sasai, Norihiro Yamashita, Yoichi Kobayashi, Hirotomo Tanaka
  • Publication number: 20050062216
    Abstract: A paper feed unit includes a hopper on which sheets are stacked and which is turned around a rotation shaft. The hopper is turned to move apart from or move to a paper feed roller. The paper feed unit has three modes: a large release mode in which the hopper is turned to be most apart from the paper feed roller, a non-release mode in which the printing sheet is abutted against the paper feed roller, and a small release mode in which the printing sheet, is slightly separated from the paper feed roller, and is at a medium level between the above two modes. When a paper feeding job is still present, a state that the uppermost printing sheet is slightly separated from the paper feed roller is retained by the small release mode, whereby a swing range of the hopper is minimized.
    Type: Application
    Filed: November 4, 2004
    Publication date: March 24, 2005
    Inventors: Toru Fukushima, Kazuhisa Kawakami, Masafumi Furuyama, Yoji Sasai, Norihiro Yamashita, Yoichi Kobayashi, Hirotomo Tanaka
  • Publication number: 20050062215
    Abstract: A paper feed unit includes a hopper on which sheets are stacked and which is turned around a rotation shaft. The hopper is turned to move apart from or move to a paper feed roller. The paper feed unit has three modes: a large release mode in which the hopper is turned to be most apart from the paper feed roller, a non-release mode in which the printing sheet is abutted against the paper feed roller, and a small release mode in which the printing sheet. is slightly separated from the paper feed roller, and is at a medium level between the above two modes. When a paper feeding job is still present, a state that the uppermost printing sheet is slightly separated from the paper feed roller is retained by the small release mode, whereby a swing range of the hopper is minimized.
    Type: Application
    Filed: November 4, 2004
    Publication date: March 24, 2005
    Inventors: Toru Fukushima, Kazuhisa Kawakami, Masafumi Furuyama, Yoji Sasai, Norihiro Yamashita, Yoichi Kobayashi, Hirotomo Tanaka
  • Publication number: 20030057635
    Abstract: A paper feed unit includes a hopper on which sheets are stacked and which is turned around a rotation shaft. The hopper is turned to move apart from or move to a paper feed roller. The paper feed unit has three modes: a large release mode in which the hopper is turned to be most apart from the paper feed roller, a non-release mode in which the printing sheet is abutted against the paper feed roller, and a small release mode in which the printing sheet is slightly separated from the paper feed roller, and is at a medium level between the above two modes. When a paper feeding job is still present, a state that the uppermost printing sheet is slightly separated from the paper feed roller is retained by the small release mode, whereby a swing range of the hopper is minimized.
    Type: Application
    Filed: August 27, 2002
    Publication date: March 27, 2003
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Toru Fukushima, Kazuhisa Kawakami, Masafumi Furuyama, Yoji Sasai, Norihiro Yamashita, Yoichi Kobayashi, Hirotomo Tanaka
  • Publication number: 20020067940
    Abstract: A transferring tray for a printing apparatus for printing on one major surface of a recording media having disc shape, wherein the printing apparatus includes, a carriage having a printing head, reciprocating in a main scanning direction, a transferring unit transferring the recording media in a sub scanning direction, a detecting unit detecting the recording media being transferred by the transferring unit, and a recording unit printing on the one major surface of the recording media, the transferring tray including: a tray body having a rectangular plate shape made of a material which is not detected by the detecting unit; a detected portion formed on either one of two major surfaces of the tray body, being detectable by the detecting unit; and a mounting portion having a mounting recess such that the one major surface of the recording media comes up to substantially same level as one of the major surfaces of the tray body when the recording media is mounted on the transferring tray.
    Type: Application
    Filed: September 24, 2001
    Publication date: June 6, 2002
    Inventors: Yoji Sasai, Masaki Shimomura, Masahiro Isono, Mamoru Ukita, Hiroshi Asawa, Kenjiro Ishihara, Koji Hashiuchi, Kazuo Otsuka, Hiroyuki Tajima
  • Patent number: 6286931
    Abstract: An ink jet recording apparatus having a sheet forward roller 8 and a pump unit 11 connected to a single drive motor 7, and a drive force is transmitted to the pump unit 11 through time lag mechanisms 33-34 that cause a time lag at the time of switching rotational directions. Sheet feeding/discharging operation and ink sucking operation are performed with the single drive motor by taking advantage of a timing at which there are no load fluctuations accompanied by the switching operation, without requiring any switching mechanism.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: September 11, 2001
    Assignee: Seiko Epson Corporation
    Inventors: Kazuhisa Kawakami, Nobutoshi Ohtsuka, Seiji Mochizuki, Yoji Sasai, Atsushi Kobayashi, Kazuhisa Takeda, Masahiro Isono
  • Patent number: 5807003
    Abstract: An ink jet printer having a pair of supporting portion for supporting from below both side portions of a sheet to be discharged after characters are printed on the surface of a sheet. At least one of the pair of supporting portion includes a roller, which may be either a driving roller, which conveys discharging sheets from the sheet discharge section, or a driven roller, which rotates upon contacting a discharging sheet to convey the sheet from the sheet discharge section. As a consequence, the sheet is discharged smoothly, without reducing sheet feeding accuracy even when stiff sheets are printed upon by the printer.
    Type: Grant
    Filed: May 24, 1996
    Date of Patent: September 15, 1998
    Assignee: Seiko Epson Corporation
    Inventors: Yoichi Kobayashi, Tsuyoshi Tomii, Yoji Sasai, Kiyoto Komuro
  • Patent number: 5692842
    Abstract: A printer is provided having a guide shaft positioned substantially parallel with a printing surface. A print head of the printer is supported by the guide shaft, which is in turn supported by at least a first frame. The first frame is formed with an interior wall forming a through hole in the frame. A bearing member is fitted within the through hole. Upon rotation of the bearing member, the guide shaft is moved in a direction orthogonal to the printing surface.
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: December 2, 1997
    Assignee: Seiko Epson Corporation
    Inventors: Yoji Sasai, Takayuki Okuda