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).
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Patent number: 8229337Abstract: 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: GrantFiled: April 21, 2010Date of Patent: July 24, 2012Assignee: Seiko Epson CorporationInventors: Yoshiyuki Nagai, Katsuhito Gomi, Kenjiro Yoshioka
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Patent number: 8217019Abstract: 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: GrantFiled: February 5, 2010Date of Patent: July 10, 2012Assignees: DNAVEC Research Inc., Japan as Represented by the Director General of National Institute of Infectious DiseaseInventors: Munehide Kano, Tetsuro Matano, Atsushi Kato, Yoshiyuki Nagai, Mamoru Hasegawa
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Patent number: 8103203Abstract: 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: GrantFiled: August 27, 2009Date of Patent: January 24, 2012Assignee: Seiko Epson CorporationInventors: Yoshiyuki Nagai, Kenjiro Yoshioka, Katsuhito Gomi
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Patent number: 8008805Abstract: 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: GrantFiled: November 28, 2007Date of Patent: August 30, 2011Assignee: Nissan Motor Co., Ltd.Inventors: Yukio Mizukoshi, Yuki Nakajima, Tomoya Imazu, Yoshiyuki Nagai
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Publication number: 20110076066Abstract: 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: ApplicationFiled: July 22, 2010Publication date: March 31, 2011Applicant: SEIKO EPSON CORPORATIONInventors: Katsuhito GOMI, Yoshiyuki NAGAI, Kenjiro YOSHIOKA
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Publication number: 20110076067Abstract: 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: ApplicationFiled: September 16, 2010Publication date: March 31, 2011Applicant: SEIKO EPSON CORPORATIONInventors: Yoshiyuki NAGAI, Kenjiro YOSHIOKA, Katsuhito GOMI
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Publication number: 20100272479Abstract: 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: ApplicationFiled: April 21, 2010Publication date: October 28, 2010Applicant: SEIKO EPSON CORPORATIONInventors: Yoshiyuki NAGAI, Katsuhito GOMI, Kenjiro YOSHIOKA
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Publication number: 20100272472Abstract: 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: ApplicationFiled: April 21, 2010Publication date: October 28, 2010Applicant: SEIKO EPSON CORPORATIONInventors: Katsuhito GOMI, Kenjiro YOSHIOKA, Yoshiyuki NAGAI
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Publication number: 20100266633Abstract: 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: ApplicationFiled: February 5, 2010Publication date: October 21, 2010Applicants: DNAVEC Research Inc., Japan as represented by Director General of National Institute of Infectious DiseasesInventors: Munehide KANO, Tetsuro Matano, Atsushi Kato, Yoshiyuki Nagai, Mamoru Hasegawa
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Publication number: 20100054787Abstract: 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: ApplicationFiled: August 27, 2009Publication date: March 4, 2010Applicant: SEIKO EPSON CORPORATIONInventors: Yoshiyuki NAGAI, Kenjiro YOSHIOKA, Katsuhito GOMI
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Patent number: 7630675Abstract: 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: GrantFiled: June 1, 2007Date of Patent: December 8, 2009Assignee: Sharp Kabushiki KaishaInventors: Yoshinobu Tateishi, Yasunori Minakuchi, Toshiya Mikita, Toyoaki Nanba, Yoshiyuki Nagai, Hiroshi Nakatani
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Patent number: 7548717Abstract: 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: GrantFiled: May 24, 2006Date of Patent: June 16, 2009Assignee: Sharp Kabushiki KaishaInventors: Yoshinobu Tateishi, Hiroaki Hori, Yoshiyuki Nagai, Toshiya Mikita
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Publication number: 20090027647Abstract: 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: ApplicationFiled: July 14, 2008Publication date: January 29, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Yoshiyuki Nagai, Kazuhiro Takahashi, Akihiro Yamada
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Patent number: 7464924Abstract: 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: GrantFiled: June 24, 2004Date of Patent: December 16, 2008Assignee: Sharp Kabushiki KaishaInventors: Yasumasa Morimoto, Yoshiyuki Nishizato, Masato Tamehira, Syoutaro Okamoto, Yoshiyuki Nagai
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Patent number: 7444115Abstract: 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: GrantFiled: October 9, 2003Date of Patent: October 28, 2008Assignee: Sharp Kabushiki KaishaInventors: Yasuaki Fukada, Takashi Makiura, Kiwamu Morita, Takashi Kubo, Showtaro Okamoto, Yoshiyuki Nagai
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Patent number: 7442544Abstract: 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: GrantFiled: May 17, 2005Date of Patent: October 28, 2008Assignee: Dnavec Research Inc.Inventors: Yoshiyuki Nagai, Atsushi Kato, Fukashi Murai, Tsuneaki Sakata, Mamoru Hasegawa, Tatsuo Shioda
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Publication number: 20080136265Abstract: 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: ApplicationFiled: November 28, 2007Publication date: June 12, 2008Applicant: NISSAN MOTOR CO., LTD.Inventors: Yukio MIZUKOSHI, Yuki NAKAJIMA, Tomoya IMAZU, Yoshiyuki NAGAI
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Publication number: 20070280753Abstract: 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: ApplicationFiled: June 1, 2007Publication date: December 6, 2007Inventors: Yoshinobu Tateishi, Yasunori Minakuchi, Toshiya Mikita, Tayoaki Nanba, Yoshiyuki Nagai, Hiroshi Nakatani
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Patent number: 7222413Abstract: 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: GrantFiled: October 12, 2004Date of Patent: May 29, 2007Assignee: Matsushita Electric Industrial Co., LtdInventors: Kurayasu Hamasaki, Makito Seno, Kunio Sakurai, Hiroshi Ota, Akiko Katsui, Yoshiyuki Nagai
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Patent number: 7159862Abstract: 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: GrantFiled: January 12, 2004Date of Patent: January 9, 2007Assignee: Sharp Kabushiki KaishaInventors: Yasushi Matsutomo, Yoshiaki Hiramoto, Susumu Murakami, Hideshi Izumi, Yoshie Iwakura, Motokazu Nakao, Yoshiyuki Nagai, Shigeru Yoshida