Patents by Inventor Yoshiyuki Nagai

Yoshiyuki Nagai 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: 8229337
    Abstract: An image forming apparatus including: an image carrier that carries an image; a transfer roller having a transfer material-gripping member that grips a transfer material, the transfer roller transferring the image carried by the image carrier to the transfer material; a transfer material-transporting belt that transports the transfer material onto which the image has been transferred while subjecting the transfer material to suction; a fixing section that fixes the transferred image on the transported transfer material; and a transfer material-guiding section having a guiding surface that guides the transported transfer material to the fixing section, the guiding surface being disposed in a direction in which the transfer material is sucked onto the transfer material-transporting belt relative to a transfer material-transporting surface of the transfer material-transporting belt.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: July 24, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Yoshiyuki Nagai, Katsuhito Gomi, Kenjiro Yoshioka
  • Patent number: 8217019
    Abstract: The present invention provides a vaccine containing a Sendai virus vector encoding a virus protein of an immunodeficiency virus. By intranasally administering a Sendai virus encoding a virus protein of an immunodeficiency virus to a macaque monkey, the present inventors have succeeded in efficiently inducing protective immunity against an immunodeficiency virus. As a result of intranasal inoculation of vaccine, expression of an antigen protein mediated by Sendai virus vector was detected in intranasal mucous membrane and local lymph nodes and antigen-specific cellular immune response was induced at a significant level. No pathological symptom by vaccination was observed. After vaccination, exposure of simian immunodeficiency virus was performed and the effect was examined. As a result, the amount of virus in plasma significantly decreased, compared with that of the control animal. The present invention provides a promising vaccine as an AIDS vaccine.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: July 10, 2012
    Assignees: DNAVEC Research Inc., Japan as Represented by the Director General of National Institute of Infectious Disease
    Inventors: Munehide Kano, Tetsuro Matano, Atsushi Kato, Yoshiyuki Nagai, Mamoru Hasegawa
  • Patent number: 8103203
    Abstract: A fixing device that includes a first fixing unit including a first heating roller having a metallic roller and a resin layer formed on the metallic roller, and a first pressure roller coming into abutment with the first heating roller; and a second fixing unit having a second heating roller being configured to heat a transfer material heated by the first fixing unit and including a metallic roller, a elastic layer formed on the metallic roller, and a resin layer formed on the elastic layer, and a second pressure roller coming into abutment with the second heating roller is provided.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: January 24, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Yoshiyuki Nagai, Kenjiro Yoshioka, Katsuhito Gomi
  • Patent number: 8008805
    Abstract: A power conversion apparatus includes a plurality of power modules, a plurality of capacitors and a bus bar. Each of the power modules has a direct current terminal section and an alternating current terminal section. Each of the power modules is configured and arranged to convert a direct current inputted from the direct current terminal section into a respective phase of a multiple-phase alternating current and to output the multiple-phase alternating current to the alternating current terminal section. Each of the capacitors is arranged with respect to a corresponding one of the power modules. The bus bar forms an inter-phase current path between the power modules that are adjacent and forms an intra-phase current path between one of the power modules and a corresponding one of the capacitors such that an impedance of the inter-phase current path is smaller than an impedance of the intra-phase current path.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: August 30, 2011
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yukio Mizukoshi, Yuki Nakajima, Tomoya Imazu, Yoshiyuki Nagai
  • Publication number: 20110076066
    Abstract: A fixing apparatus includes: a first fixing unit including a first heating unit heats to a transfer material onto which an image has been transferred and a first pressure unit that forms a first nip portion; a second fixing unit including a second heating unit heats to the transfer material fixed in the first fixing unit and a second pressure unit that forms a second nip portion; and a fixing unit suction guide, including a suction surface that sucks the transfer material fixed in the first fixing unit upward with a surface of the transfer material onto which the image has been transferred facing downward, an end of the suction surface on a side toward the second fixing unit in a transport direction of the transfer material being located higher in the vertical direction than an imaginary line that connects the first nip portion and the second nip portion.
    Type: Application
    Filed: July 22, 2010
    Publication date: March 31, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Katsuhito GOMI, Yoshiyuki NAGAI, Kenjiro YOSHIOKA
  • Publication number: 20110076067
    Abstract: A fixing apparatus for forming an image on a transfer material includes first and second fixing roller units, a suction guide, and a movement member. The first fixing roller unit includes a first heating roller that heats the transfer material bearing the image and a first pressure roller being in contact with the first heating roller. The suction guide guides the transfer material, and includes a suction surface that vertically upwardly sucks the transfer material after being heated by the first fixing roller unit. The second fixing roller unit fixes the transfer material after being guided by the suction guide, and includes a second heating roller heating the transfer material and a second pressure roller being in contact with the second heating roller. The second pressure roller is disposed above the second heating roller in the vertical direction. The movement member causes the second pressure roller to move vertically upwardly.
    Type: Application
    Filed: September 16, 2010
    Publication date: March 31, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yoshiyuki NAGAI, Kenjiro YOSHIOKA, Katsuhito GOMI
  • Publication number: 20100272479
    Abstract: An image forming apparatus including: an image carrier that carries an image; a transfer roller having a transfer material-gripping member that grips a transfer material, the transfer roller transferring the image carried by the image carrier to the transfer material; a transfer material-transporting belt that transports the transfer material onto which the image has been transferred while subjecting the transfer material to suction; a fixing section that fixes the transferred image on the transported transfer material; and a transfer material-guiding section having a guiding surface that guides the transported transfer material to the fixing section, the guiding surface being disposed in a direction in which the transfer material is sucked onto the transfer material-transporting belt relative to a transfer material-transporting surface of the transfer material-transporting belt.
    Type: Application
    Filed: April 21, 2010
    Publication date: October 28, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yoshiyuki NAGAI, Katsuhito GOMI, Kenjiro YOSHIOKA
  • Publication number: 20100272472
    Abstract: An image forming apparatus including a developing portion for developing a image carrier with liquid developer including a toner and a carrier liquid, a transfer portion for transferring the image developed on the image carrier in the developing portion onto a surface of the recording medium, and a recording medium transporting portion for transporting the recording medium onto which the image has been transferred with surface of the recording medium onto which the image has been transferred facing downward, with the upward facing surface being sucked and held by air flow.
    Type: Application
    Filed: April 21, 2010
    Publication date: October 28, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Katsuhito GOMI, Kenjiro YOSHIOKA, Yoshiyuki NAGAI
  • Publication number: 20100266633
    Abstract: The present invention provides a vaccine containing a Sendai virus vector encoding a virus protein of an immunodeficiency virus. By intranasally administering a Sendai virus encoding a virus protein of an immunodeficiency virus to a macaque monkey, the present inventors have succeeded in efficiently inducing protective immunity against an immunodeficiency virus. As a result of intranasal inoculation of vaccine, expression of an antigen protein mediated by Sendai virus vector was detected in intranasal mucous membrane and local lymph nodes and antigen-specific cellular immune response was induced at a significant level. No pathological symptom by vaccination was observed. After vaccination, exposure of simian immunodeficiency virus was performed and the effect was examined. As a result, the amount of virus in plasma significantly decreased, compared with that of the control animal. The present invention provides a promising vaccine as an AIDS vaccine.
    Type: Application
    Filed: February 5, 2010
    Publication date: October 21, 2010
    Applicants: DNAVEC Research Inc., Japan as represented by Director General of National Institute of Infectious Diseases
    Inventors: Munehide KANO, Tetsuro Matano, Atsushi Kato, Yoshiyuki Nagai, Mamoru Hasegawa
  • Publication number: 20100054787
    Abstract: A fixing device that includes a first fixing unit including a first heating roller having a metallic roller and a resin layer formed on the metallic roller, and a first pressure roller coming into abutment with the first heating roller; and a second fixing unit having a second heating roller being configured to heat a transfer material heated by the first fixing unit and including a metallic roller, a elastic layer formed on the metallic roller, and a resin layer formed on the elastic layer, and a second pressure roller coming into abutment with the second heating roller is provided.
    Type: Application
    Filed: August 27, 2009
    Publication date: March 4, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yoshiyuki NAGAI, Kenjiro YOSHIOKA, Katsuhito GOMI
  • Patent number: 7630675
    Abstract: A fuser unit with a cleaning mechanism, including: a set of a heat roller and a pressure roller for sandwiching a recording sheet while heating the recording sheet by the heat roller; a feed roller for feeding a band-shaped cleaning member which is windable; a press roller for pressing the fed cleaning member against a surface of the heat roller or the pressure roller; a wind roller for winding the cleaning member which is pressed by the press roller; and a first reverse rotation preventing mechanism for preventing rotation of the press roller from rotating in the opposite direction to the winding direction of the cleaning member.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: December 8, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshinobu Tateishi, Yasunori Minakuchi, Toshiya Mikita, Toyoaki Nanba, Yoshiyuki Nagai, Hiroshi Nakatani
  • Patent number: 7548717
    Abstract: A fixing apparatus that fuses and firmly adheres an unfixed developer onto a recording medium includes a heating roller and a pressure roller; a belt-shaped cleaning member that is disposed so as to abut on the heating roller and cleans the surface of the heating roller, the cleaning member being impregnated with oil in advance; a feed roller that sends out the cleaning member; a wind-up roller that winds up the cleaning member having cleaned the heating roller; a press-contact roller disposed so as to press the cleaning member against the heating roller on which the cleaning member abuts; and an oil absorbing layer that is disposed on an outer circumferential surface of the press-contact roller and absorbs oil exudation out of the cleaning member.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: June 16, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshinobu Tateishi, Hiroaki Hori, Yoshiyuki Nagai, Toshiya Mikita
  • Publication number: 20090027647
    Abstract: The present invention provides an exposure apparatus comprising an illumination optical system configured to illuminate a reticle including a pellicle with light from a light source, a projection optical system configured to project a pattern of the reticle onto a substrate, an obtaining unit configured to obtain information on a thickness of the pellicle, an adjusting unit configured to adjust an illuminance on the substrate, and a control unit configured to control the adjusting unit based on the information on the thickness of the pellicle obtained by the obtaining unit.
    Type: Application
    Filed: July 14, 2008
    Publication date: January 29, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yoshiyuki Nagai, Kazuhiro Takahashi, Akihiro Yamada
  • Patent number: 7464924
    Abstract: A sheet feeder device is provided with a pick-up roller driving section which is operative to position the pick-up roller into a retracted position spaced a predetermined distance apart from a stack of document sheets on a document tray before and after the operation for feeding the series of document sheets, into a sheet feed position in which the pick-up roller abuts against the stack of document sheets for feeding the document sheets at an occasion of feeding of each of the document sheets in the operation for feeding the series of document sheets, and into the standby position above and close to the height of a stack of a maximum load number of document sheets carried on the document tray during a period from a point in time just after feeding of one sheet to a point in time just before feeding of a succeeding sheet.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: December 16, 2008
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasumasa Morimoto, Yoshiyuki Nishizato, Masato Tamehira, Syoutaro Okamoto, Yoshiyuki Nagai
  • Patent number: 7444115
    Abstract: A two-side image forming apparatus of the present invention is provided with a first sheet-transferring path, for use in one-side image formation, for transferring, to a printed sheet storage section via an image transcribing section, a sheet supplied from an unprinted sheet storage section; and a second sheet-transferring path, connected to the first sheet-transferring path, for supplying a tuned-over one-side printed sheet to the image transcribing section, the two-image forming apparatus being controlled so that a plurality of sheets are transferred concurrently in an overall sheet-transferring path when performing two-side image forming operation, the overall sheet-transferring path including the first sheet-transferring path and the second sheet-transferring path. With this arrangement, it is possible to attain a significant improvement in process efficiency.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: October 28, 2008
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasuaki Fukada, Takashi Makiura, Kiwamu Morita, Takashi Kubo, Showtaro Okamoto, Yoshiyuki Nagai
  • Patent number: 7442544
    Abstract: A method for regenerating Sendai virus particles by transfecting the Sendai virus genome to a host expressing all genes for the initial viral replication has been developed, enabling the genetic manipulation of Sendai virus and effective utilization of said virus as the vector.
    Type: Grant
    Filed: May 17, 2005
    Date of Patent: October 28, 2008
    Assignee: Dnavec Research Inc.
    Inventors: Yoshiyuki Nagai, Atsushi Kato, Fukashi Murai, Tsuneaki Sakata, Mamoru Hasegawa, Tatsuo Shioda
  • Publication number: 20080136265
    Abstract: A power conversion apparatus includes a plurality of power modules, a plurality of capacitors and a bus bar. Each of the power modules has a direct current terminal section and an alternating current terminal section. Each of the power modules is configured and arranged to convert a direct current inputted from the direct current terminal section into a respective phase of a multiple-phase alternating current and to output the multiple-phase alternating current to the alternating current terminal section. Each of the capacitors is arranged with respect to a corresponding one of the power modules. The bus bar forms an inter-phase current path between the power modules that are adjacent and forms an intra-phase current path between one of the power modules and a corresponding one of the capacitors such that an impedance of the inter-phase current path is smaller than an impedance of the intra-phase current path.
    Type: Application
    Filed: November 28, 2007
    Publication date: June 12, 2008
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Yukio MIZUKOSHI, Yuki NAKAJIMA, Tomoya IMAZU, Yoshiyuki NAGAI
  • Publication number: 20070280753
    Abstract: A fuser unit with a cleaning mechanism, including: a set of a heat roller and a pressure roller for sandwiching a recording sheet while heating the recording sheet by the heat roller; a feed roller for feeding a band-shaped cleaning member which is windable; a press roller for pressing the fed cleaning member against a surface of the heat roller or the pressure roller; a wind roller for winding the cleaning member which is pressed by the press roller; and a first reverse rotation preventing mechanism for preventing rotation of the press roller from rotating in the opposite direction to the winding direction of the cleaning member.
    Type: Application
    Filed: June 1, 2007
    Publication date: December 6, 2007
    Inventors: Yoshinobu Tateishi, Yasunori Minakuchi, Toshiya Mikita, Tayoaki Nanba, Yoshiyuki Nagai, Hiroshi Nakatani
  • Patent number: 7222413
    Abstract: The present invention has for its object to provide an apparatus and a method for transferring boards, and a component mounting apparatus whereby a production efficiency can be improved in accordance with types of boards to be produced. For accomplishing this object, there are arranged a shift device capable of moving a mounted board from a process-finished board transfer path to an unprocessed board transfer path, a controller for controlling this moving, and an identifying device. This arrangement enables switching of a method of transferring boards in accordance with types of boards to be produced, and controlling supply of boards to the component mounting apparatus, so that production efficiency is improved in accordance with types of boards.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: May 29, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd
    Inventors: Kurayasu Hamasaki, Makito Seno, Kunio Sakurai, Hiroshi Ota, Akiko Katsui, Yoshiyuki Nagai
  • Patent number: 7159862
    Abstract: A roller turning force generator is connected to a driving gear which is mounted on a shaft. The shaft is connected to offset roller assemblies disposed in an offset mechanism via connecting gears. The offset roller assemblies rotatably supported inside the offset mechanism are turned by a driving force transmitted from the roller turning force generator to discharge individual sheets of a printing medium in a sheet transport direction. The offset mechanism is linked to an offsetting force generator so that the offset mechanism can be shifted along a direction perpendicular to the sheet transport direction.
    Type: Grant
    Filed: January 12, 2004
    Date of Patent: January 9, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasushi Matsutomo, Yoshiaki Hiramoto, Susumu Murakami, Hideshi Izumi, Yoshie Iwakura, Motokazu Nakao, Yoshiyuki Nagai, Shigeru Yoshida