Patents by Inventor Shinji Mitsui
Shinji Mitsui 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: 9063466Abstract: A developing device includes a transporting unit that rotates while facing an image carrier that carries an electrostatic latent image, the transporting unit transporting developer toward the image carrier; a feeding unit that contacts the transporting unit to feed the developer to the transporting unit; a transport path that connects a containing chamber that contains the developer to a feeding chamber that houses the feeding unit; a supplying unit that retains the developer to be supplied in the transport path and supplies the developer to the feeding unit in a supply region that is separated from a contact region in which the feeding unit contacts the transporting unit; and an attaching unit that is disposed downstream of the contact region and upstream of the supply region in a rotation direction of the feeding unit and that attaches the developer to the feeding unit at a location below the contact region.Type: GrantFiled: April 18, 2013Date of Patent: June 23, 2015Assignee: FUJI XEROX CO., LTD.Inventors: Munenobu Okubo, Yasuyuki Tsutsumi, Shinji Mitsui, Kazuaki Iikura, Yosuke Ninomiya, Yoshifumi Ozaki, Akihiko Noda, Hirokazu Hamano, Takafumi Wakai, Masaru Sakuma
-
Patent number: 9002244Abstract: A developing device including a toner holding member that faces but is not in contact with an image carrier carrying a latent image and that rotates while holding a nonmagnetic toner, a charging member that charges the toner, and a developing electric field forming unit that forms a developing electric field at least including a direct current component to cause the charged toner to fly and adhere to the latent image to develop the latent image. When the developing electric field is applied such that the toner is caused to fly toward the image carrier by the direct current component of the developing electric field, maintaining a non-electrostatic adhesion of the toner to the toner holding member to be about 2 nN or more under a low-temperature low-humidity environment of a temperature of 10° C. and a relative humidity of 15%. The toner holding member's surface has a specific surface roughness specified by a specific oil retention volume.Type: GrantFiled: January 18, 2013Date of Patent: April 7, 2015Assignee: Fuji Xerox Co., Ltd.Inventors: Yoshifumi Ozaki, Shinji Mitsui, Akihiko Noda, Masahiro Andoh, Hisashi Murase, Takafumi Wakai, Munenobu Okubo, Masaru Sakuma, Yasuyuki Tsutsumi, Hirokazu Hamano, Kazuaki Iikura, Yosuke Ninomiya
-
Patent number: 8841911Abstract: A radio frequency coil assembly is provided that includes a first radio frequency coil for receiving a magnetic resonance signal from a tested body; a second radio frequency coil for receiving a magnetic resonance signal from the tested body; and a third radio frequency coil for receiving a magnetic resonance signal from the tested body and having a shape that is different from that of at least one of the first and second radio frequency coils so as to increase local sensitivity in an image-picked-up region.Type: GrantFiled: February 27, 2012Date of Patent: September 23, 2014Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Kazuya Okamoto, Shinji Mitsui, Manabu Ishii
-
Patent number: 8773131Abstract: A receiving RF coil includes a coil element group having a figure-eight coil, a first loop coil arranged at the center of the figure-eight coil, and a second loop coil partially overlaid on the first loop coil. Furthermore, a path switching control unit switches the transmitting paths of a signal so that the signal can be received and/or transmitted with a combination of the first loop coil and the second loop coil or a combination of the figure-eight coil and the first loop coil.Type: GrantFiled: April 16, 2010Date of Patent: July 8, 2014Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Shinji Mitsui, Hiroki Motohashi
-
Publication number: 20140147141Abstract: A developing device includes a transporting unit that rotates while facing an image carrier that carries an electrostatic latent image, the transporting unit transporting developer toward the image carrier; a feeding unit that contacts the transporting unit to feed the developer to the transporting unit; a transport path that connects a containing chamber that contains the developer to a feeding chamber that houses the feeding unit; a supplying unit that retains the developer to be supplied in the transport path and supplies the developer to the feeding unit in a supply region that is separated from a contact region in which the feeding unit contacts the transporting unit; and an attaching unit that is disposed downstream of the contact region and upstream of the supply region in a rotation direction of the feeding unit and that attaches the developer to the feeding unit at a location below the contact region.Type: ApplicationFiled: April 18, 2013Publication date: May 29, 2014Applicant: FUJI XEROX CO., LTD.Inventors: Munenobu OKUBO, Yasuyuki TSUTSUMI, Shinji MITSUI, Kazuaki IIKURA, Yosuke NINOMIYA, Yoshifumi OZAKI, Akihiko NODA, Hirokazu HAMANO, Takafumi WAKAI, Masaru SAKUMA
-
Publication number: 20140147144Abstract: A developing device includes a toner holding member that is rotatably installed opposite to an image holding member which holds a latent image and circularly moves, a supply member that has a rough surface capable of capturing toner, a toner supply portion that supplies new toner, and a restriction member that restricts an amount of toner used for development, wherein the toner supply portion connects an accommodation chamber to a developing chamber via a toner transport path, wherein a developing chamber side opening is located on a lower side of an accommodation chamber side opening of the toner transport path, and wherein a width size in a direction following a rotation direction of the supply member in the developing chamber side opening of the toner transport path is set to be smaller than an outer diameter of the supply member in a projection plane viewed from the supply member side.Type: ApplicationFiled: May 7, 2013Publication date: May 29, 2014Applicant: FUJI XEROX CO., LTD.Inventors: Shinji MITSUI, Munenobu OKUBO, Yasuyuki TSUTSUMI, Kazuaki IIKURA, Yosuke NINOMIYA, Yoshifumi OZAKI, Akihiko NODA, Hirokazu HAMANO, Takafumi WAKAI, Masaru SAKUMA
-
Publication number: 20140147142Abstract: There is provided a developing device including a toner holding member that is rotatably provided to face an image holding member and holds and transports a nonmagnetic single-component toner toward a development region to develop an electrostatic latent image on the image holding member, a supplying member that is rotatably provided in elastic contact with the toner holding member to supply the toner from a contact region therebetween to the toner holding member, a toner replenishing unit that faces a replenishment region at a portion apart from the contact region to replenish a new toner, and a regulating member that is provided on a downstream side of the contact region in a rotation direction thereof and on an upstream side of the development region to triboelectrically charge the toner held on the toner holding member and regulate the amount of toner provided for the development.Type: ApplicationFiled: May 1, 2013Publication date: May 29, 2014Applicant: FUJI XEROX CO., LTD.Inventors: Masaru SAKUMA, Munenobu OKUBO, Shinji MITSUI, Yasuyuki TSUTSUMI, Kazuaki IIKURA, Yosuke NINOMIYA, Yoshifumi OZAKI, Akihiko NODA, Hirokazu HAMANO, Takafumi WAKAI
-
Publication number: 20140056623Abstract: A development method is used for a developing device including a toner holding member that faces but is not in contact with an image carrier carrying a latent image and that rotates while holding a nonmagnetic toner, a charging member that charges the toner, and a developing electric field forming unit that forms a developing electric field at least including a direct current component to cause the charged toner to fly and adhere to the latent image to develop the latent image. The method includes, when the developing electric field is applied such that the toner is caused to fly toward the image carrier by the direct current component of the developing electric field alone, maintaining a non-electrostatic adhesion of the toner to the toner holding member to be about 2 nN or more under a low-temperature low-humidity environment of a temperature of 10° C. and a relative humidity of 15%.Type: ApplicationFiled: January 18, 2013Publication date: February 27, 2014Applicant: FUJI XEROX CO., LTD.Inventors: Yoshifumi OZAKI, Shinji MITSUI, Akihiko NODA, Masahiro ANDOH, Hisashi MURASE, Takafumi WAKAI, Munenobu OKUBO, Masaru SAKUMA, Yasuyuki TSUTSUMI, Hirokazu HAMANO, Kazuaki IIKURA, Yosuke NINOMIYA
-
Patent number: 8649694Abstract: An image forming apparatus includes image holding bodies that hold latent images and toner images, developer units that form toner images by developing the latent images, a transfer unit that transfers the toner images to a recording medium, a fixing unit that fixes the transferred toner images to the recording medium, container mounting portions on which toner containers are replaceably mounted, and remaining toner amount calculating units that calculate the amount of toners remaining in the toner containers, wherein the remaining toner amount calculating unit includes a primary calculator that calculates plural primary remaining amounts on the basis of bases different from each other, a storage unit that stores empty area data of a remaining amount space, and a secondary calculator that refers to the empty area data stored in the storage unit, and calculates a ratio of a distance.Type: GrantFiled: October 24, 2011Date of Patent: February 11, 2014Assignee: Fuji Xerox Co., Ltd.Inventor: Shinji Mitsui
-
Patent number: 8649693Abstract: An image forming apparatus includes an image holding member, an exposing device, a developing device, a transfer device, a fixing device, a container mounting portion demountably mounted with a toner container, a toner supply unit supplying the toner to the developing device from the toner container, a first estimation unit estimating an amount of toner used on the basis of the image data, a second estimation unit estimating the amount of toner used on the basis of a toner supplying operation of the toner supply unit, and an emptiness determining unit determining emptiness of the toner container on the basis of only the amount of toner used estimated by the first estimation unit in a first state and both the amounts of toner used estimated by the first and second estimation units in a second state.Type: GrantFiled: October 12, 2011Date of Patent: February 11, 2014Assignee: Fuji Xerox Co., Ltd.Inventor: Shinji Mitsui
-
Publication number: 20120306499Abstract: An electrically-controlled failsafe switch is included in an MRI transmit-and-receive RF coil assembly so as to protect it from induced RF currents in the event it is disconnected from an MRI system, but inadvertently left linked to strong MRI RF fields during imaging procedures using other RF coils.Type: ApplicationFiled: August 15, 2012Publication date: December 6, 2012Applicants: TOSHIBA MEDICAL SYSTEMS CORPORATION, QUALITY ELECTRODYNAMICS, LLCInventors: YOSHINORI HAMAMURA, XIAOYU YANG, NICHOLAS CASTRILLA, CHRISTOPHER J. ALLEN, SHINJI MITSUI
-
Publication number: 20120251134Abstract: An image forming apparatus includes an image holding member, an exposing device, a developing device, a transfer device, a fixing device, a container mounting portion demountably mounted with a toner container, a toner supply unit supplying the toner to the developing device from the toner container, a first estimation unit estimating an amount of toner used on the basis of the image data, a second estimation unit estimating the amount of toner used on the basis of a toner supplying operation of the toner supply unit, and an emptiness determining unit determining emptiness of the toner container on the basis of only the amount of toner used estimated by the first estimation unit in a first state and both the amounts of toner used estimated by the first and second estimation units in a second state.Type: ApplicationFiled: October 12, 2011Publication date: October 4, 2012Applicant: FUJI XEROX CO., LTD.Inventor: Shinji MITSUI
-
Publication number: 20120243885Abstract: An image forming apparatus includes image holding bodies that hold latent images and toner images, developer units that form toner images by developing the latent images, a transfer unit that transfers the toner images to a recording medium, a fixing unit that fixes the transferred toner images to the recording medium, container mounting portions on which toner containers are replaceably mounted, and remaining toner amount calculating units that calculate the amount of toners remaining in the toner containers, wherein the remaining toner amount calculating unit includes a primary calculator that calculates plural primary remaining amounts on the basis of bases different from each other, a storage unit that stores empty area data of a remaining amount space, and a secondary calculator that refers to the empty area data stored in the storage unit, and calculates a ratio of a distance.Type: ApplicationFiled: October 24, 2011Publication date: September 27, 2012Applicant: FUJI XEROX CO., LTD.Inventor: Shinji MITSUI
-
Patent number: 8269499Abstract: An electrically-controlled failsafe switch is included in an MRI transmit-and-receive RF coil assembly so as to protect it from induced RF currents in the event it is disconnected from an MRI system, but inadvertently left linked to strong MRI RF fields during imaging procedures using other RF coils.Type: GrantFiled: June 1, 2010Date of Patent: September 18, 2012Assignees: Quality Electrodynamics, LLC, Toshiba Medical Systems CorporationInventors: Yoshinori Hamamura, Xiaoyu Yang, Nicholas Castrilla, Christopher J. Allen, Shinji Mitsui
-
Patent number: 8232802Abstract: A radio frequency coil assembly is provided that includes a first radio frequency coil for receiving a magnetic resonance signal from a tested body; a second radio frequency coil for receiving a magnetic resonance signal from the tested body; and a third radio frequency coil for receiving a magnetic resonance signal from the tested body and having a shape that is different from that of at least one of the first and second radio frequency coils so as to increase local sensitivity in an image-picked-up region.Type: GrantFiled: May 5, 2010Date of Patent: July 31, 2012Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Kazuya Okamoto, Shinji Mitsui, Manabu Ishii
-
Publication number: 20120153957Abstract: A radio frequency coil assembly is provided that includes a first radio frequency coil for receiving a magnetic resonance signal from a tested body; a second radio frequency coil for receiving a magnetic resonance signal from the tested body; and a third radio frequency coil for receiving a magnetic resonance signal from the tested body and having a shape that is different from that of at least one of the first and second radio frequency coils so as to increase local sensitivity in an image-picked-up region.Type: ApplicationFiled: February 27, 2012Publication date: June 21, 2012Applicants: TOSHIBA MEDICAL SYSTEMS CORPORATION, KABUSHIKI KAISHA TOSHIBAInventors: Kazuya OKAMOTO, Shinji MITSUI, Manabu ISHII
-
Publication number: 20120153954Abstract: In one embodiment, an RF coil device (90A) includes a base board (96), a belt member (94a), a first coil element (108a, 108b), a second coil element (104, 106) inside the base board, and a connecting unit (100, 102). Both ends of the belt member are respectively connected to mutually separated places on the base board, so that the center part of the belt member is located on the anterior surface of the base board. The belt member is curved to form “airspace between the center part thereof and the anterior surface for letting an arm pass through in interdigitation state”. The first coil element includes first and second partial coils inside the belt member, and becomes a loop coil element by their connection. The connecting unit detachably connects the base board to the belt member, and mutually connects the first and second partial coils in the interdigitation state.Type: ApplicationFiled: February 23, 2012Publication date: June 21, 2012Inventors: Miyuki OTA, Sadanori TOMIHA, Shinji MITSUI, Mitsuo TAKAGI, Hiroki MOTOHASHI, Kazuya OKAMOTO, Junichi MAKITA
-
Publication number: 20110291655Abstract: An electrically-controlled failsafe switch is included in an MRI transmit-and-receive RF coil assembly so as to protect it from induced RF currents in the event it is disconnected from an MRI system, but inadvertently left linked to strong MRI RF fields during imaging procedures using other RF coils.Type: ApplicationFiled: June 1, 2010Publication date: December 1, 2011Applicants: TOSHIBA MEDICAL SYSTEMS CORPORATION, QUALITY ELECTRODYNAMICS, LLCInventors: Yoshinori Hamamura, Xiaoyu Yang, Nicholas Castrilla, Christopher J. Allen, Shinji Mitsui
-
Patent number: 8035385Abstract: When an RF coil in a magnetic resonance imaging system includes a plurality of conductive members and circuit elements connected to the conductive members, at least part of each of the conductive members is formed to a thickness so as to dissipate heat generated from the circuit elements. Moreover, the magnetic resonance imaging system is configured to include a cooling unit that circulates cooling air over the surfaces of the circuit elements provided in the RF coil.Type: GrantFiled: November 19, 2008Date of Patent: October 11, 2011Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Sadanori Tomiha, Takahiro Ishihara, Shinji Mitsui, Hiromitsu Takamori, Ayumi Katsunuma
-
Patent number: 7830147Abstract: A radio frequency coil assembly is provided. The radio frequency coil assembly includes: a first radio frequency coil for receiving a magnetic resonance signal from a tested body; a second radio frequency coil for receiving a magnetic resonance signal from the tested body; and a third radio frequency coil for receiving a magnetic resonance signal from the tested body and having a shape which is different from that of at least one of the first and second radio frequency coils so as to increase a local sensitivity in an image-picked-up region.Type: GrantFiled: March 4, 2008Date of Patent: November 9, 2010Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Kazuya Okamoto, Shinji Mitsui, Manabu Ishii