Patents by Inventor Takashi Seto

Takashi Seto 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: 20140011059
    Abstract: A power supply device includes a battery cell stack (5) constructed of a plurality of stacked, rectangular battery cells, and a cooling pipe (60) disposed in a thermally coupled state over one surface of the battery cell stack (5), the cooling pipe (60) being adapted to perform a heat exchange with the battery cell stack (5) by allowing a refrigerant to flow inside the pipe, wherein a plurality of rows of the cooling pipes (60) are spaced apart from each other over the one surface of the battery cell stack (5), and a resin member is placed between the spaced-apart cooling pipes (60) such that the one surface of the battery cell stack (5) is covered in a sealed state.
    Type: Application
    Filed: March 29, 2012
    Publication date: January 9, 2014
    Inventors: Hiroyuki Hashimoto, Masaki Tsuchiya, Yasuhiro Asai, Takashi Seto, Takahide Komoriya
  • Publication number: 20130344378
    Abstract: An assembled battery comprises: multiple cells 30 each having external terminals including a negative electrode terminal 50 and a positive electrode terminal 60; a bus bar 40 configured to connect the external terminal of one of two adjacent cells 30 to the external terminal of the other of these two adjacent cells 30; a connecting member 70 welded to the external terminal and the bus bar 40 so as to electrically connect the external terminal and the bus bar 40; a welding portion 80 at which the external terminal and the connecting member 70 are welded; and a welding portion 82 at which the bus bar 40 and the connecting member 70 are welded. The external terminal has a region that is at a distance from an outer package as compared with a portion of the connecting member 70 that is adjacent to the welding portion 80.
    Type: Application
    Filed: February 3, 2012
    Publication date: December 26, 2013
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Yasuhiro Kohara, Mayumi Nakasato, Fusanori Watanabe, Yasuhiro Asai, Takashi Seto, Daiki Uchiyama
  • Publication number: 20130294802
    Abstract: A sheet separating device is attached to a fixing device. The fixing device includes: a fixing member that is a rotary body having a heating unit; and a pressing member that is pressed against and is brought into contact with the fixing member. The fixing device conveys a sheet material that carries unfixed toner thereon through a nip section formed by the fixing member and the pressing member so as to fix the unfixed toner image to the sheet material. The sheet separating device includes: at least one nozzle member that discharges compressed gas from the direction of a nip outlet toward the nip section along the fixing member. The nozzle member is rotatably supported by a shaft member that is provided parallel to the fixing member and includes a gas flow passage through which compressed gas is supplied to the nozzle member.
    Type: Application
    Filed: March 12, 2012
    Publication date: November 7, 2013
    Inventors: Takeshi Yamamoto, Fumihiro Hirose, Takashi Seto
  • Patent number: 8571452
    Abstract: A transfer and fixing device as means for heating a recording medium prior to transfer and fixing, without risk of fire, superior in energy efficiency, and able to stably heat irrespective of the thickness of the recording medium; and an imaging forming apparatus comprising such a transfer and fixing device comprising: a transfer and fixing member by which an image is transferred; a pressurizing member that forms a nip by pressure contact with the transfer and fixing member and pressurizes and fixes the image on the recording medium that passes through the aforementioned nip; a radiant heat source that is arranged on the upstream side of the nip in the direction of transport of the recording medium; and a thermoconductive member that is heated by the radiant heat source and heats the recording medium when in contact, wherein a radiant heat region is provided, between the nip and the thermoconductive member, where the recording medium is heated by radiant heat from the radiant heat source.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: October 29, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Takashi Seto, Takashi Fujita, Atsushi Nagata, Hiromitsu Takagaki
  • Patent number: 8553238
    Abstract: A media separator includes air nozzles and separation plates to form a row of members, and is configured to separate a sheet conveyed from a fixing nip formed of a fixing member and a pressure member. In such a media separator, the plurality of air nozzles and at least one separation plate are disposed along a longitudinal direction of the fixing device, and the plurality of air nozzles are disposed at both lateral ends of the row of members in the longitudinal direction of the fixing device, whereby waving of the edge of the sheet in the printing of frequently used sheet can be prevented and the occurrence of jam may be prevented, and a stable sheet separation and conveyance can be realized.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: October 8, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Fumihiro Hirose, Takeshi Yamamoto, Takashi Seto, Kenichi Hasegawa, Naoto Suzuki
  • Patent number: 8509675
    Abstract: An image forming apparatus includes an image bearing member to bear an electrostatic latent image on the surface thereof, a transfer-fixing member disposed adjacent to the image baring member, including a transfer surface onto which the toner image is transferred from the image bearing member, a first pressure member to meet and press against the transfer-fixing member to form a nip therebetween, a heating member to heat a recording medium, provided upstream of the nip in a direction of transport of the recording medium, and a transport guide member to change a contact area of the recording medium and the heating member in accordance with a thickness or a resilience of the recording medium. When the recording medium passes the nip, the toner image is pressed and fixed on the recording medium.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: August 13, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Takashi Seto, Takashi Fujita, Hiromitsu Takagaki, Atsushi Nagata, Kazuya Saito
  • Patent number: 8509664
    Abstract: An image forming apparatus includes a compressed air generator, a nozzle, a tube, a cooling device, and a drain discharging portion. The compressed air generator generates and injects compressed air onto at least one of a recording medium and components in the image forming apparatus. The compressed air is injected from the nozzle. The tube connects the compressed air generator and the nozzle, and the compressed air passes through the tube. The cooling device cools at least a portion of the tube. The drain discharging portion discharges drain fluid generated in the tube during cooling by the cooling device.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: August 13, 2013
    Assignee: Ricoh Company, Limited
    Inventors: Kenichi Hasegawa, Takeshi Yamamoto, Takashi Seto, Fumihiro Hirose
  • Patent number: 8483601
    Abstract: A transfer fixing device includes a transfer fixing member, a pressure member, and a primary heater. The transfer fixing member defines a moving surface on which a toner image travels. The pressure member is pressed against the transfer fixing member to define a transfer fixing nip where the toner image traveling along the moving surface meets a surface of a recording medium traveling along the media conveyance path. The primary heater is located upstream of the transfer fixing nip along the media conveyance path to heat the surface of the recording medium before entering the transfer fixing nip. The heated surface of the recording medium fuses toner for transfer and fixing into place at the transfer fixing nip. The pressure member is at least partially electrically biased to generate an electrostatic field to promote transfer of toner at the transfer fixing nip.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: July 9, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazuya Saito, Atsushi Nagata, Takashi Fujita, Takashi Seto, Hiromitsu Takagaki
  • Patent number: 8433230
    Abstract: A disclosed image forming apparatus includes an image carrier; a developing device configured to form a toner image on the image carrier; a compressed air generating unit configured to generate compressed air; an air nozzle configured to eject the compressed air; a fixing device configured to fix the toner image on a sheet, the sheet being separated from the fixing device by the compressed air ejected from the air nozzle to the sheet; a pressure regulation unit provided between the compressed air generating unit and the air nozzle; and a guide path connected to the pressure regulation unit and configured to guide excess air generated by a pressure regulation of the pressure regulation unit to at least one part in the image forming apparatus.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: April 30, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Takashi Seto, Takeshi Yamamoto, Kenichi Hasegawa, Fumihiro Hirose
  • Patent number: 8422925
    Abstract: In a transfer-fixing device for transferring and fixing a toner image on a transfer-fixing side of a recording medium, a transfer-fixing member carries the toner image. A pressing member presses against the transfer-fixing member to form a nip between the transfer-fixing member and the pressing member through which the recording medium passes. A heat transmission member is provided upstream from the nip in a recording medium conveyance direction to heat the transfer-fixing side of the recording medium while guiding the recording medium to the nip. A heating member is connected to the heat transmission member to heat the heat transmission member. A biasing member biases the recording medium guided by the heat transmission member against the heat transmission member.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: April 16, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Takashi Fujita, Atsushi Nagata, Takashi Seto, Hiromitsu Takagaki, Kazuya Saito, Takeshi Yamamoto
  • Publication number: 20130004822
    Abstract: A power supply device includes a battery assembly, a box-shaped cover case, a cooling plate, and a waterproof sheet. The battery assembly includes rectangular battery cells arranged side by side. The cover case has an opening. Exterior surfaces of the battery assembly are covered with surfaces of the cover case other than the opening. The cooling plate is thermally coupled to one surface of the battery assembly through the opening. Coolant flows through the cooling plate whereby transferring heat from the battery assembly to the coolant. The waterproof sheet covers the one surface of the battery assembly. Gaps between the battery assembly and the cover case are filled with a sealing material so that a sealing layer is interposed between them. The waterproof sheet is fastened by the sealing layer.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 3, 2013
    Inventors: Hiroyuki HASHIMOTO, Masaki TSUCHIYA, Yasuhiro ASAI, Takashi SETO, Takahide KOMORIYA
  • Patent number: 8249491
    Abstract: A fixing device includes a heater, a rotary fixing member, and a rotary pressing member pressing against the rotary fixing member to form a nip therebetween through which a recording medium bearing a toner image passes to fix the toner image thereon. The fixing device includes an air supply tube disposed downstream from the nip in the direction of conveyance of the recording medium and connected to an air source of an image forming apparatus, to supply compressed air to a plurality of nozzles disposed on the air supply tube along a long axis of the nip perpendicular to the direction of conveyance and inject pulsed compressed air against the recording medium passing through the nip. The air supply tube includes an exhaust opening disposed at an extreme upstream end of the flow of the compressed air outside the recording medium passing area near the air source.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: August 21, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Fumihiro Hirose, Takeshi Yamamoto, Takashi Seto, Kenichi Hasegawa
  • Patent number: 8200135
    Abstract: A transfer-fixing device includes a transfer-fixing member, a pressing member, a heating device, and a temperature equalizer. The transfer-fixing member carries the toner image. The pressing member presses against the transfer-fixing member to form a nip portion to which the recording medium is conveyed. The heating device heats the transfer-fixing surface of the recording medium conveyed toward the nip portion. The temperature equalizer equalizes a temperature distribution of a surface of the transfer-fixing member in a width direction of the transfer-fixing member after the surface of the transfer-fixing member passes through the nip portion.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: June 12, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Takashi Fujita, Shin Kayahara, Hiromitsu Takagaki, Takashi Seto, Takeshi Takemoto, Hirohmi Tamura
  • Publication number: 20120044516
    Abstract: A media separator includes air nozzles and separation plates to form a row of members, and is configured to separate a sheet conveyed from a fixing nip formed of a fixing member and a pressure member. In such a media separator, the plurality of air nozzles and at least one separation plate are disposed along a longitudinal direction of the fixing device, and the plurality of air nozzles are disposed at both lateral ends of the row of members in the longitudinal direction of the fixing device, whereby waving of the edge of the sheet in the printing of frequently used sheet can be prevented and the occurrence of jam may be prevented, and a stable sheet separation and conveyance can be realized.
    Type: Application
    Filed: August 8, 2011
    Publication date: February 23, 2012
    Inventors: Fumihiro HIROSE, Takeshi YAMAMOTO, Takashi SETO, Kenichi HASEGAWA, Naoto SUZUKI
  • Publication number: 20120014725
    Abstract: An image forming apparatus including a fixing device to fix a toner image on a recoding medium; a compressed air generator to generate a compressed air; an air nozzle to inject the compressed air to separate the recording medium having the fixed toner image from the fixing device; a first switching unit to switch the air nozzle between injection and termination, which is provided upstream from the air nozzle; and a buffer unit to retain the compressed air, which is provided upstream from the air nozzle and downstream from the first switching unit.
    Type: Application
    Filed: June 28, 2011
    Publication date: January 19, 2012
    Applicant: Ricoh Company, Ltd.
    Inventors: Takashi Seto, Takeshi Yamamoto, Fumihiro Hirose, Kenichi Hasegawa
  • Publication number: 20110305491
    Abstract: A sheet separation mechanism including a compressed air generator, a first nozzle to eject compressed air onto a leading edge of a sheet, a control valve provided between the compressed air generator and the first nozzle to control a flow of the compressed air, and a second nozzle provided between the control valve and the first nozzle. The control valve controls the compressed air to be simultaneously ejected from both the first nozzle and the second nozzle.
    Type: Application
    Filed: May 27, 2011
    Publication date: December 15, 2011
    Applicant: Ricoh Company, Ltd.
    Inventors: Kenichi Hasegawa, Takeshi Yamamoto, Takashi Seto, Fumihiro Hirose
  • Publication number: 20110217091
    Abstract: A fixing device includes a heater, a rotary fixing member, and a rotary pressing member pressing against the rotary fixing member to form a nip therebetween through which a recording medium bearing a toner image passes to fix the toner image thereon. The fixing device includes an air supply tube disposed downstream from the nip in the direction of conveyance of the recording medium and connected to an air source of an image forming apparatus, to supply compressed air to a plurality of nozzles disposed on the air supply tube along a long axis of the nip perpendicular to the direction of conveyance and inject pulsed compressed air against the recording medium passing through the nip. The air supply tube includes an exhaust opening disposed at an extreme upstream end of the flow of the compressed air outside the recording medium passing area near the air source.
    Type: Application
    Filed: February 1, 2011
    Publication date: September 8, 2011
    Applicant: Ricoh Company, Ltd.
    Inventors: Fumihiro Hirose, Takeshi Yamamoto, Takashi Seto, Kenichi Hasegawa
  • Publication number: 20110206425
    Abstract: A disclosed image forming apparatus includes an image carrier; a developing device configured to form a toner image on the image carrier; a compressed air generating unit configured to generate compressed air; an air nozzle configured to eject the compressed air; a fixing device configured to fix the toner image on a sheet, the sheet being separated from the fixing device by the compressed air ejected from the air nozzle to the sheet; a pressure regulation unit provided between the compressed air generating unit and the air nozzle; and a guide path connected to the pressure regulation unit and configured to guide excess air generated by a pressure regulation of the pressure regulation unit to at least one part in the image forming apparatus.
    Type: Application
    Filed: January 7, 2011
    Publication date: August 25, 2011
    Inventors: Takashi SETO, Takeshi Yamamoto, Kenichi Hasegawa, Fumihiro Hirose
  • Patent number: 7988388
    Abstract: A spindle attachment device attached, for use, to a distal end of a spindle of a machine tool is provided. The spindle attachment device (11) includes a hollow casing (13) having an internal space; an input shaft (17) rotatably supported inside the casing; an output shaft (19) rotatably supported inside the casing; a coupling member (15) connected to the input shaft in order to join the input shaft to the spindle of the machine tool; a gear train (21) disposed between the input shaft and the output shaft in order to increase a rotation speed of the input shaft for a transmission to the output shaft; and a tap holder (25, 27) for mounting a tapping tool on the output shaft. The spindle attachment device increases the rotation speed of the spindle and transfers it to the tapping tool, and thus makes it possible to perform a tapping process on a workpiece at high speed, while maintaining the rotation speed of the spindle at a low level.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: August 2, 2011
    Assignee: Makino J Co., Ltd.
    Inventors: Masaharu Suzuki, Takashi Seto
  • Publication number: 20110182609
    Abstract: An image forming apparatus includes a compressed air generator, a nozzle, a tube, a cooling device, and a drain discharging portion. The compressed air generator generates and injects compressed air onto at least one of a recording medium and components in the image forming apparatus. The compressed air is injected from the nozzle. The tube connects the compressed air generator and the nozzle, and the compressed air passes through the tube. The cooling device cools at least a portion of the tube. The drain discharging portion discharges drain generated in the tube during cooling by the cooling device.
    Type: Application
    Filed: December 3, 2010
    Publication date: July 28, 2011
    Inventors: Kenichi HASEGAWA, Takeshi Yamamoto, Takashi Seto, Fumihiro Hirose