Patents by Inventor Hiromichi Ema

Hiromichi Ema 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).

  • Patent number: 7606521
    Abstract: The present invention relates to an electrophotographic color image forming apparatus using a tandem-drum development, an indirect image-transfer method, and a vertical sheet supply path. An intermediate image-transfer member is angled relative to a horizontal line such that a rear side of the intermediate image-transfer member away from a recording sheet is lifted and a front side of the intermediate image-transfer member closer to the recording sheet is lowered. Further, image creating mechanisms of the tandem-drum development are aligned and arranged in parallel to a moving image transfer bed of the intermediate image-transfer member, such that one of the image creating mechanisms firstly forming an image faces the rear side of the moving image transfer bed and another one of the image creating mechanisms lastly forming an image faces the front side.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: October 20, 2009
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuusuke Noguchi, Hiromichi Ema, Hiroshi Ishii, Yutaka Fukuchi, Kazuosa Kuma, Kazuki Suzuki, Makoto Kikura, Masumi Sato, Hiroyasu Shijo, Tomotoshi Nakahara, Motokazu Yasui
  • Publication number: 20080240799
    Abstract: The present invention relates to an electrophotographic color image forming apparatus using a tandem-drum development, an indirect image-transfer method, and a vertical sheet supply path. An intermediate image-transfer member is angled relative to a horizontal line such that a rear side of the intermediate image-transfer member away from a recording sheet is lifted and a front side of the intermediate image-transfer member closer to the recording sheet is lowered. Further, image creating mechanisms of the tandem-drum development are aligned and arranged in parallel to a moving image transfer bed of the intermediate image-transfer member, such that one of the image creating mechanisms firstly forming an image faces the rear side of the moving image transfer bed and another one of the image creating mechanisms lastly forming an image faces the front side.
    Type: Application
    Filed: June 5, 2008
    Publication date: October 2, 2008
    Inventors: Yuusuke Noguchi, Hiromichi Ema, Hiroshi Ishii, Yutaka Fukuchi, Kazuosa Kuma, Kazuki Suzuki, Makoto Kikura, Masumi M.S Sato, Hiroyasu Shijo, Tomotoshi Nakahara, Motokazu Yasui
  • Patent number: 7406283
    Abstract: The present invention relates to an electrophotographic color image forming apparatus using a tandem-drum development, an indirect image-transfer method, and a vertical sheet supply path. An intermediate image-transfer member is angled relative to a horizontal line such that a rear side of the intermediate image-transfer member away from a recording sheet is lifted and a front side of the intermediate image-transfer member closer to the recording sheet is lowered. Further, image creating mechanisms of the tandem-drum development are aligned and arranged in parallel to a moving image transfer bed of the intermediate image-transfer member, such that one of the image creating mechanisms firstly forming an image faces the rear side of the moving image transfer bed and another one of the image creating mechanisms lastly forming an image faces the front side.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: July 29, 2008
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuusuke Noguchi, Hiromichi Ema, Hiroshi Ishii, Yutaka Fukuchi, Kazuosa Kuma, Kazuki Suzuki, Makoto Kikura, Masumi Sato, Hiroyasu Shijo, Tomotoshi Nakahara, Motokazu Yasui
  • Patent number: 7333749
    Abstract: The present invention relates to an electrophotographic color image forming apparatus using a tandem-drum development, an indirect image-transfer method, and a vertical sheet supply path. An intermediate image-transfer member is angled relative to a horizontal line such that a rear side of the intermediate image-transfer member away from a recording sheet is lifted and a front side of the intermediate image-transfer member closer to the recording sheet is lowered. Further, image creating mechanisms of the tandem-drum development are aligned and arranged in parallel to a moving image transfer bed of the intermediate image-transfer member, such that one of the image creating mechanisms firstly forming an image faces the rear side of the moving image transfer bed and another one of the image creating mechanisms lastly forming an image faces the front side.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: February 19, 2008
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuusuke Noguchi, Hiromichi Ema, Hiroshi Ishii, Yutaka Fukuchi, Kazuosa Kuma, Kazuki Suzuki, Makoto Kikura, Masumi Sato, Hiroyasu Shijo, Tomotoshi Nakahara, Motokazu Yasui
  • Publication number: 20070242976
    Abstract: The present invention relates to an electrophotographic color image forming apparatus using a tandem-drum development, an indirect image-transfer method, and a vertical sheet supply path. An intermediate image-transfer member is angled relative to a horizontal line such that a rear side of the intermediate image-transfer member away from a recording sheet is lifted and a front side of the intermediate image-transfer member closer to the recording sheet is lowered. Further, image creating mechanisms of the tandem-drum development are aligned and arranged in parallel to a moving image transfer bed of the intermediate image-transfer member, such that one of the image creating mechanisms firstly forming an image faces the rear side of the moving image transfer bed and another one of the image creating mechanisms lastly forming an image faces the front side.
    Type: Application
    Filed: June 28, 2007
    Publication date: October 18, 2007
    Inventors: Yuusuke Noguchi, Hiromichi Ema, Hiroshi Ishii, Yutaka Fukuchi, Kazuosa Kuma, Kazuki Suzuki, Makoto Kikura, Masumi Sato, Hiroyasu Shijo, Tomotoshi Nakahara, Motokazu Yasui
  • Patent number: 7263309
    Abstract: The present invention relates to an electrophotographic color image forming apparatus using a tandem-drum development, an indirect image-transfer method, and a vertical sheet supply path. An intermediate image-transfer member is angled relative to a horizontal line such that a rear side of the intermediate image-transfer member away from a recording sheet is lifted and a front side of the intermediate image-transfer member closer to the recording sheet is lowered. Further, image creating mechanisms of the tandem-drum development are aligned and arranged in parallel to a moving image transfer bed of the intermediate image-transfer member, such that one of the image creating mechanisms firstly forming an image faces the rear side of the moving image transfer bed and another one of the image creating mechanisms lastly forming an image faces the front side.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: August 28, 2007
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuusuke Noguchi, Hiromichi Ema, Hiroshi Ishii, Yutaka Fukuchi, Kazuosa Kuma, Kazuki Suzuki, Makoto Kikura, Masumi Sato, Hiroyasu Shijo, Tomotoshi Nakahara, Motokazu Yasui
  • Publication number: 20070127946
    Abstract: The present invention relates to an electrophotographic color image forming apparatus using a tandem-drum development, an indirect image-transfer method, and a vertical sheet supply path. An intermediate image-transfer member is angled relative to a horizontal line such that a rear side of the intermediate image-transfer member away from a recording sheet is lifted and a front side of the intermediate image-transfer member closer to the recording sheet is lowered. Further, image creating mechanisms of the tandem-drum development are aligned and arranged in parallel to a moving image transfer bed of the intermediate image-transfer member, such that one of the image creating mechanisms firstly forming an image faces the rear side of the moving image transfer bed and another one of the image creating mechanisms lastly forming an image faces the front side.
    Type: Application
    Filed: February 5, 2007
    Publication date: June 7, 2007
    Inventors: Yuusuke Noguchi, Hiromichi Ema, Hiroshi Ishii, Yutaka Fukuchi, Kazuosa Kuma, Kazuki Suzuki, Makoto Kikura, Masumi Sato, Hiroyasu Shijo, Tomotoshi Nakahara, Motokazu Yasui
  • Publication number: 20050169653
    Abstract: The present invention relates to an electrophotographic color image forming apparatus using a tandem-drum development, an indirect image-transfer method, and a vertical sheet supply path. An intermediate image-transfer member is angled relative to a horizontal line such that a rear side of the intermediate image-transfer member away from a recording sheet is lifted and a front side of the intermediate image-transfer member closer to the recording sheet is lowered. Further, image creating mechanisms of the tandem-drum development are aligned and arranged in parallel to a moving image transfer bed of the intermediate image-transfer member, such that one of the image creating mechanisms firstly forming an image faces the rear side of the moving image transfer bed and another one of the image creating mechanisms lastly forming an image faces the front side.
    Type: Application
    Filed: March 24, 2005
    Publication date: August 4, 2005
    Inventors: Yuusuke Noguchi, Hiromichi Ema, Hiroshi Ishii, Yutaka Fukuchi, Kazuosa Kuma, Kazuki Suzuki, Makoto Kikura, Masumi Sato, Hiroyasu Shijo, Tomotoshi Nakahara, Motokazu Yasui
  • Patent number: 6898407
    Abstract: The present invention relates to an electrophotographic color image forming apparatus using a tandem-drum development, an indirect image-transfer method, and a vertical sheet supply path. An intermediate image-transfer member is angled relative to a horizontal line such that a rear side of the intermediate image-transfer member away from a recording sheet is lifted and a front side of the intermediate image-transfer member closer to the recording sheet is lowered. Further, image creating mechanisms of the tandem-drum development are aligned and arranged in parallel to a moving image transfer bed of the intermediate image-transfer member, such that one of the image creating mechanisms firstly forming an image faces the rear side of the moving image transfer bed and another one of the image creating mechanisms lastly forming an image faces the front side.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: May 24, 2005
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuusuke Noguchi, Hiromichi Ema, Hiroshi Ishii, Yutaka Fukuchi, Kazuosa Kuma, Kazuki Suzuki, Makoto Kikura, Masumi Sato, Hiroyasu Shijo, Tomotoshi Nakahara, Motokazu Yasui
  • Publication number: 20040126150
    Abstract: The present invention relates to an electrophotographic color image forming apparatus using a tandem-drum development, an indirect image-transfer method, and a vertical sheet supply path. An intermediate image-transfer member is angled relative to a horizontal line such that a rear side of the intermediate image-transfer member away from a recording sheet is lifted and a front side of the intermediate image-transfer member closer to the recording sheet is lowered. Further, image creating mechanisms of the tandem-drum development are aligned and arranged in parallel to a moving image transfer bed of the intermediate image-transfer member, such that one of the image creating mechanisms firstly forming an image faces the rear side of the moving image transfer bed and another one of the image creating mechanisms lastly forming an image faces the front side.
    Type: Application
    Filed: September 12, 2003
    Publication date: July 1, 2004
    Inventors: Yuusuke Noguchi, Hiromichi Ema, Hiroshi Ishii, Yutaka Fukuchi, Kazuosa Kuma, Kazuki Suzuki, Makoto Kikura, Masumi Sato, Hiroyasu Shijo, Tomotoshi Nakahara, Motokazu Yasui
  • Patent number: 5978099
    Abstract: A facsimile apparatus and an information processing apparatus are connected with one another through connecting portions over wires or by radio in a facsimile system. The facsimile apparatus includes a power supply instructing portion which outputs a power supply instruction signal through the connecting portions, the power supply instruction signal instructing whether power supply is on in all the portions of the information processing apparatus or power supply is on only in certain portions of the information processing apparatus, the certain portions being used for receiving the power supply instruction signal from the facsimile apparatus and causing power supply to be on in all the portions of the information processing apparatus.
    Type: Grant
    Filed: April 16, 1997
    Date of Patent: November 2, 1999
    Assignee: Ricoh Company, Ltd.
    Inventor: Hiromichi Ema
  • Patent number: 5694289
    Abstract: An information processing apparatus has a base portion connected to a main apparatus. An operation panel comprises one or more panel units fittable on the base portion in such a way that the panel units can change direction. The operation panel units each include a lower part fittable in the base portion, an upper part including an input device and/or a display device, and a rotating part permitting rotation of the panel units to change direction of the panel units on the base portion. The rotating part is slidable on the base portion between a home position of the panel units and a direction changing position of the panel units. A holder holds and releases each panel unit to fix the panel unit in the home position.
    Type: Grant
    Filed: August 2, 1995
    Date of Patent: December 2, 1997
    Assignee: Ricoh Company, Ltd.
    Inventor: Hiromichi Ema
  • Patent number: 5327197
    Abstract: An electrophotographic apparatus capable of forming a high quality image by a contact type developing system using a photoconductive belt and a developing roller. The belt has a tubular configuration. A single friction roller is made of rubber and received in the tubular belt to drive it in a rotary motion. The friction roller has an outside diameter smaller than the inside diameter of the belt to provide the belt with a slack. The developing roller contacts the slack of the belt and, therefore, contacts the belt over a sufficient nip width.
    Type: Grant
    Filed: July 8, 1993
    Date of Patent: July 5, 1994
    Assignee: Ricoh Company, Ltd.
    Inventors: Yozo Matsuura, Hiromichi Ema, Shiroh Kondoh, Eiji Takenaka, Hiroshi Saitoh