Patents by Inventor Kazuyuki Shimada

Kazuyuki Shimada 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: 8148938
    Abstract: Disclosed is a charging control method including: a full charging step of charging a lead storage battery until the battery is fully charged; a refresh charging step of performing refresh charging of charging the lead storage battery with a predetermined refresh charging quantity of electricity after the lead storage battery has been fully charged; and a refresh charging quantity setting step of setting the refresh charging quantity of electricity in the refresh charging step for the lead storage battery which has been fully charged at a present time, depending on a temperature of the lead storage battery throughout a deficient charging period, the deficient charging period being a period from a time when the lead storage battery has been fully charged at a previous time to a time when the lead storage battery has been fully charged at the present time in the full charging step.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: April 3, 2012
    Assignee: Panasonic Corporation
    Inventors: Tomoya Kikuchi, Harumi Murochi, Yasuyuki Yoshihara, Kazuyuki Shimada
  • Patent number: 8130250
    Abstract: An optical scanner includes a light source modulated based on image data, an optical deflection and scanning part deflecting a light beam emitted from the light source, and a scanning and imaging optical system condensing the deflected light beam toward a scanning surface so as to form a light spot optically scanning the scanning surface. The effective scanning region of the scanning surface is divided into a plurality of regions according to a scanning line curving characteristic. Suitable image data for optically scanning the divided regions are selected from image data of a plurality of image lines every time the light spot optically scans the effective scanning region, so that the image data of each of the image lines is written with scanning line curving being corrected.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: March 6, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Seizo Suzuki, Yoshinori Hayashi, Kazuyuki Shimada
  • Publication number: 20110285357
    Abstract: Disclosed is a charging control method including: a full charging step of charging a lead storage battery until the battery is fully charged; a refresh charging step of performing refresh charging of charging the lead storage battery with a predetermined refresh charging quantity of electricity after the lead storage battery has been fully charged; and a refresh charging quantity setting step of setting the refresh charging quantity of electricity in the refresh charging step for the lead storage battery which has been fully charged at a present time, depending on a temperature of the lead storage battery throughout a deficient charging period, the deficient charging period being a period from a time when the lead storage battery has been fully charged at a previous time to a time when the lead storage battery has been fully charged at the present time in the full charging step.
    Type: Application
    Filed: May 27, 2010
    Publication date: November 24, 2011
    Inventors: Tomoya Kikuchi, Harumi Murochi, Yasuyuki Yoshihara, Kazuyuki Shimada
  • Publication number: 20110249984
    Abstract: An image forming apparatus including a plurality of image forming cartridges removably mounted to an apparatus body one above the other is disclosed. Structural members each partition off a space between nearby image forming cartridges mounted to the apparatus body. The apparatus is capable of obviating banding ascribable to the vibration of the cartridges.
    Type: Application
    Filed: June 23, 2011
    Publication date: October 13, 2011
    Inventors: Yasushi NAKAZATO, Kazuyuki Shimada, Tomohiro Nakajima
  • Patent number: 7991321
    Abstract: An image forming apparatus including a plurality of image forming cartridges removably mounted to an apparatus body one above the other is disclosed. Structural members each partition off a space between nearby image forming cartridges mounted to the apparatus body. The apparatus is capable of obviating banding ascribable to the vibration of the cartridges.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: August 2, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Yasushi Nakazato, Kazuyuki Shimada, Tomohiro Nakajima
  • Publication number: 20110069137
    Abstract: An optical scanner includes a light source modulated based on image data, an optical deflection and scanning part deflecting a light beam emitted from the light source, and a scanning and imaging optical system condensing the deflected light beam toward a scanning surface so as to form a light spot optically scanning the scanning surface. The effective scanning region of the scanning surface is divided into a plurality of regions according to a scanning line curving characteristic. Suitable image data for optically scanning the divided regions are selected from image data of a plurality of image lines every time the light spot optically scans the effective scanning region, so that the image data of each of the image lines is written with scanning line curving being corrected.
    Type: Application
    Filed: November 30, 2010
    Publication date: March 24, 2011
    Inventors: Seizo SUZUKI, Yoshinori Hayashi, Kazuyuki Shimada
  • Patent number: 7903133
    Abstract: An optical scanner includes a light source modulated based on image data, an optical deflection and scanning part deflecting a light beam emitted from the light source, and a scanning and imaging optical system condensing the deflected light beam toward a scanning surface so as to form a light spot optically scanning the scanning surface. The effective scanning region of the scanning surface is divided into a plurality of regions according to a scanning line curving characteristic. Suitable image data for optically scanning the divided regions are selected from image data of a plurality of image lines every time the light spot optically scans the effective scanning region, so that the image data of each of the image lines is written with scanning line curving being corrected.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: March 8, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Seizo Suzuki, Yoshinori Hayashi, Kazuyuki Shimada
  • Publication number: 20100329733
    Abstract: An image forming apparatus including a plurality of image forming cartridges removably mounted to an apparatus body one above the other is disclosed. Structural members each partition off a space between nearby image forming cartridges mounted to the apparatus body. The apparatus is capable of obviating banding ascribable to the vibration of the cartridges.
    Type: Application
    Filed: September 7, 2010
    Publication date: December 30, 2010
    Inventors: Yasushi NAKAZATO, Kazuyuki Shimada, Tomohiro Nakajima
  • Patent number: 7801462
    Abstract: An image forming apparatus including a plurality of image forming cartridges removably mounted to an apparatus body one above the other is disclosed. Structural members each partition off a space between nearby image forming cartridges mounted to the apparatus body. The apparatus is capable of obviating banding ascribable to the vibration of the cartridges.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: September 21, 2010
    Assignee: Ricoh Company, Ltd.
    Inventors: Yasushi Nakazato, Kazuyuki Shimada, Tomohiro Nakajima
  • Patent number: 7777774
    Abstract: An optical scanning characteristic control method is applied to an optical scanning system in which a beam is deflected, and the deflected beam is converged and directed toward a scanning surface, so that optical scanning of the scanning surface is performed by an optical spot formed thereon by the deflected beam. The method comprising the steps of a) disposing a beam deflection control device on the light path of the beam before it is incident on the scanning surface; and b) controlling a beam deflection amount of the beam deflecting device provide to an incident beam so as to control a scanning characteristic of the optical scanning.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: August 17, 2010
    Assignee: Ricoh Company, Ltd.
    Inventors: Mitsuo Suzuki, Naoki Miyatake, Taku Amada, Seizo Suzuki, Kazuyuki Shimada, Satoru Itoh
  • Patent number: 7532227
    Abstract: An optical scanner is capable of effectively correcting a difference with respect to the sub-scanning direction between the positions of optical spots for scanning photoconductor drums of a tandem type color image forming apparatus. The optical scanner includes an optical axis adjusting part. The optical axis adjusting part uses a deflecting mirror or a wedge-shaped prism to deflect the optical axis of an optical beam with respect to the sub-scanning direction. As a result, it is possible to accurately correct a resist difference among individual image forming stations and form a high-quality color image without any color displacement.
    Type: Grant
    Filed: July 1, 2003
    Date of Patent: May 12, 2009
    Assignee: Ricoh Company, Ltd.
    Inventors: Tomohiro Nakajima, Akira Kojima, Ikuko Yamashiro, Seizo Suzuki, Taku Amada, Yoshinori Hayashi, Kazuyuki Shimada
  • Patent number: 7525561
    Abstract: An optical scanner is capable of effectively correcting a difference with respect to the sub-scanning direction between the positions of optical spots for scanning photoconductor drums of a tandem type color image forming apparatus. The optical scanner includes an optical axis adjusting part. The optical axis adjusting part uses a deflecting mirror or a wedge-shaped prism to deflect the optical axis of an optical beam with respect to the sub-scanning direction. As a result, it is possible to accurately correct a resist difference among individual image forming stations and form a high-quality color image without any color displacement.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: April 28, 2009
    Assignee: Ricoh Company, Ltd.
    Inventors: Tomohiro Nakajima, Akira Kojima, Ikuko Yamashiro, Seizo Suzuki, Taku Amada, Yoshinori Hayashi, Kazuyuki Shimada
  • Publication number: 20090060569
    Abstract: An image forming apparatus including a plurality of image forming cartridges removably mounted to an apparatus body one above the other is disclosed. Structural members each partition off a space between nearby image forming cartridges mounted to the apparatus body. The apparatus is capable of obviating banding ascribable to the vibration of the cartridges.
    Type: Application
    Filed: October 23, 2008
    Publication date: March 5, 2009
    Inventors: Yasushi NAKAZATO, Kazuyuki Shimada, Tomohiro Nakajima
  • Patent number: 7460145
    Abstract: A multi-beam scanning apparatus includes a light source having first and second light source sections that hold a pair of semi-conductor laser diodes and coupling lenses that couple four beams irradiated from the pair of semi-conductor laser diodes with a base member. A light beam deviating device may be provided so as to deviate the four beams. A scan imaging device is also provided so as to scan a scan receiving surface with beam spots of the beams deviated by the light beam deviating device. A beam pitch-detecting device is also provided so as to detect a beam pitch of the respective beams formed on the scan-receiving surface. A beam pitch correcting device is provided in order to correct the beam pitch by causing relative deviation of a light axis among the respective beams on a sub scanning direction cross sectional plane.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: December 2, 2008
    Assignee: Ricoh Company, Ltd.
    Inventors: Taku Amada, Kazuyuki Shimada
  • Patent number: 7457562
    Abstract: An image forming apparatus including a plurality of image forming cartridges arranged one above another each configured to form an image on a medium. An optical writing support unit, including an optical writing unit, hingedly attached to the image forming apparatus at a lower end position of the optical writing support unit and movable between a first position covering the plurality of image forming cartridges and a second position uncovering a side of the plurality of image forming cartridges opposite to a photoconductive element. Each of the image forming cartridges is configured to be mounted to or dismounted from a housing in the image forming apparatus when the optical writing support unit is in the second position.
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: November 25, 2008
    Assignee: Ricoh Company, Ltd.
    Inventors: Yasushi Nakazato, Kazuyuki Shimada, Tomohiro Nakajima
  • Publication number: 20080011709
    Abstract: A polyethylene-based resin molding material having an ethylene-based polymer in an amount from ?20% to <30% by weight that has a high load melt flow rate (HLMFR) at a temperature of 190° C. under a load of 21.6 kg of 0.1 to 1.0 g/l0 min and a density of 0.910 to 0.930 g/cm3; and an ethylene-based polymer in an amount from >70% to ?80% by weight that has a melt flow rate (MFR) at a temperature of 190° C. under a load of 2.16 kg of ?150 g/10 min to <400 g/10 min and a density of ?0.960 g/cm3; and wherein the polyethylene-based resin molding material has an MFR from ?0.4 g/10 min to <2.0 g/10 min, an HLMFR from ?70 g/10 min to <180 g/10 min, an HLMFR/MFR of 100 to 200, and a density from ?0.953 g/cm3 to <0.965 g/cm3.
    Type: Application
    Filed: June 22, 2007
    Publication date: January 17, 2008
    Applicant: JAPAN POLYETHYLENE CORPORATION
    Inventors: Kunihiko IBAYASHI, Ippei Kagaya, Tomomi Hiramoto, Kazuyuki Shimada
  • Publication number: 20070282176
    Abstract: A metabolic energy monitoring system is provided which comprises: a wearable device having a movement sensor, a temperature sensor and a pulse wave sensor and adapted to be worn on a human body; a database to store activity state decision knowledge data including activity state decision condition data and calorie consumption calculation knowledge data including a calorie consumption calculating algorithm for each metabolic state; an activity state decision unit to determine the activity state based on a detection signal from the wearable device and activity state decision knowledge data; a metabolic state decision unit to detect an activity continuation state, and determine the metabolic state; a calorie consumption calculating unit to calculate a calorie consumption according to the metabolic state; and an output unit to output the calorie consumption.
    Type: Application
    Filed: May 30, 2007
    Publication date: December 6, 2007
    Inventors: Kazuyuki Shimada, Hiroyuki Kuriyama, Hideyuki Ban
  • Patent number: 7286786
    Abstract: An image forming apparatus includes a plurality of image forming cartridges removably mounted to an apparatus body one above the other and a transfer belt support unit hingedly attached to the image forming apparatus that is movable between a first position covering the plurality of image forming cartridges and a second position uncovering the plurality of image forming cartridges. Each image forming cartridge can be mounted to or dismounted from the image forming apparatus when the transfer belt support unit is in the second position. At least one of the image forming cartridges can be mounted to or dismounted from the image forming apparatus in a direction other than along an axis of rotation of a photoconductive member located in an image forming member.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: October 23, 2007
    Assignee: Ricoh Company, Ltd.
    Inventors: Yasushi Nakazato, Kazuyuki Shimada, Tomohiro Nakajima
  • Publication number: 20070189008
    Abstract: A multi-beam scanning apparatus includes a light source having first and second light source sections that hold a pair of semi-conductor laser diodes and coupling lenses that couple four beams irradiated from the pair of semi-conductor laser diodes with a base member. A light beam deviating device may be provided so as to deviate the four beams. A scan imaging device is also provided so as to scan a scan receiving surface with beam spots of the beams deviated by the light beam deviating device. A beam pitch-detecting device is also provided so as to detect a beam pitch of the respective beams formed on the scan-receiving surface. A beam pitch correcting device is provided in order to correct the beam pitch by causing relative deviation of a light axis among the respective beams on a sub scanning direction cross sectional plane.
    Type: Application
    Filed: March 26, 2007
    Publication date: August 16, 2007
    Inventors: Taku AMADA, Kazuyuki Shimada
  • Patent number: RE42865
    Abstract: An optical scanning characteristic control method is applied to an optical scanning system in which a beam is deflected, and the deflected beam is converged and directed toward a scanning surface, so that optical scanning of the scanning surface is performed by an optical spot formed thereon by the deflected beam. The method comprising the steps of a) disposing a beam deflection control device on the light path of the beam before it is incident on the scanning surface; and b) controlling a beam deflection amount of the beam deflecting device provide to an incident beam so as to control a scanning characteristic of the optical scanning.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: October 25, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Mitsuo Suzuki, Naoki Miyatake, Taku Amada, Seizo Suzuki, Kazuyuki Shimada, Satoru Itoh