Patents by Inventor Seiichi Takagi
Seiichi Takagi 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: 7770738Abstract: A classifying device for classifying particles using a centrifugal force contains a microchannel includes a curved portion including a first tubular channel and a second tubular channel; and a diaphragm that is provided within the curved portion, and that is located at a position between the first tubular channel and the second tubular channel; and wherein the diaphragm has at least a first apertured group formed in a central region of the diaphragm and a second apertured group formed in a first end region and a second end region of the diaphragm, the first apertured group and the second apertured group communicate the first tubular channel with the second tubular channel along a direction of the centrifugal force, the first apertured group has a mesh, and the second apertured group has a mesh that is different in size from the mesh of the first apertured group.Type: GrantFiled: February 24, 2009Date of Patent: August 10, 2010Assignee: Fuji Xerox Co., Ltd.Inventors: Kazuaki Tabata, Hiroshi Kojima, Kazuya Hongo, Takayuki Yamada, Seiichi Takagi, Tetsuo Ohta, Masaki Hirota
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Patent number: 7767155Abstract: A microreactor apparatus includes; a microreactor body that includes first and second substrates; a microchannel that is formed inside the microreactor body; and integral connectors that are disposed detachably on the microreactor body, and through which supply/discharge pipes are to be connected to end portions of the microchannel, respectively.Type: GrantFiled: February 15, 2007Date of Patent: August 3, 2010Assignee: Fuji Xerox Co., Ltd.Inventors: Tetsuo Ohta, Seiichi Takagi
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Patent number: 7732725Abstract: A method of classifying fine particles includes: introducing a fine particle dispersion containing the fine particles to a micro flow channel having an inlet part and a collection part from the inlet part; moving the fine particles to an inner upper side of the micro flow channel by an electric field applied in a gravitational direction; and delivering the fine particle dispersion in a laminar flow state to the collection part. The delivering step includes classifying the fine particles according to differences in settling velocity among the fine particles.Type: GrantFiled: February 17, 2006Date of Patent: June 8, 2010Assignee: Fuji Xerox Co., Ltd.Inventors: Seiichi Takagi, Okimasa Okada, Tetsuo Ohta
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Publication number: 20100122957Abstract: A microchannel device is provided, the microchannel device containing a microfluidic channel including a sub fluidic channel in which at least one filtration diaphragm is provided, wherein the microfluidic channel has at least a supply port, a first discharge port and a second discharge port, the supply port and the first discharge port are connected through the filtration diaphragm, the supply port and the second discharge port are connected without the filtration diaphragm, and the filtration diaphragm is provided parallel to a fluidic channel direction of the microfluidic channel.Type: ApplicationFiled: April 13, 2009Publication date: May 20, 2010Applicant: FUJI XEROX CO., LTD.Inventors: Kazuya HONGO, Takayuki YAMADA, Seiichi TAKAGI, Hiroshi KOJIMA, Masaki HIROTA, Kazuaki TABATA, Tetsuo OHTA
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Publication number: 20100124717Abstract: Colored resin particles, each includes: a resin; and a colorant, wherein a value of average equivalent circle diameter A (?m) of the colored resin particles is 3?A?6, an average degree of circularity B of the colored resin particles satisfies the following expression (1), and 0.990?0.0083A?B?1.021?0.0117A??(1) a cumulative number frequency of particles which have degrees of circularity of less than 0.9 in the colored resin particles is 1% or less.Type: ApplicationFiled: May 13, 2009Publication date: May 20, 2010Applicant: FUJI XEROX CO., LTD.Inventors: Tomohito NAKAJIMA, Hiroyuki MORIYA, Hideya KATSUHARA, Seiichi TAKAGI, Kazuya HONGO
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Publication number: 20100072116Abstract: A classifying device for classifying particles using a centrifugal force contains a microchannel includes a curved portion including a first tubular channel and a second tubular channel; and a diaphragm that is provided within the curved portion, and that is located at a position between the first tubular channel and the second tubular channel; and wherein the diaphragm has at least a first apertured group formed in a central region of the diaphragm and a second apertured group formed in a first end region and a second end region of the diaphragm, the first apertured group and the second apertured group communicate the first tubular channel with the second tubular channel along a direction of the centrifugal force, the first apertured group has a mesh, and the second apertured group has a mesh that is different in size from the mesh of the first apertured group.Type: ApplicationFiled: February 24, 2009Publication date: March 25, 2010Applicant: FUJI XEROX CO., LTDInventors: Kazuaki TABATA, Hiroshi KOJIMA, Kazuya HONGO, Takayuki YAMADA, Seiichi TAKAGI, Tetsuo OHTA, Masaki HIROTA
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Publication number: 20100072112Abstract: A separation apparatus contains: a dispersion liquid introduction path to which a dispersion liquid containing particles is introduced; a separation path that has a inclined upper face inclined with respect to a direction of gravity and separates the particles; and a discharge path from which particles separated by the separation path are discharged.Type: ApplicationFiled: March 4, 2009Publication date: March 25, 2010Applicant: FUJI XEROX CO., LTD.Inventors: Hiroshi KOJIMA, Kazuya HONGO, Seiichi TAKAGI, Tetsuo OHTA
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Patent number: 7683117Abstract: A resin composition includes an aliphatic polyester; a second polymer compound other than the aliphatic polyester; and an organic phosphoric acid compound that has a phosphorus content of about 20% by mass or more.Type: GrantFiled: January 31, 2008Date of Patent: March 23, 2010Assignees: Fuji Xerox Co., Ltd., Fujifilm CorporationInventors: Masahiro Moriyama, Kenji Yao, Seiichi Takagi, Masayuki Okoshi, Fumiyuki Suzuki, Tadashi Mochizuki, Hidetoshi Kawasaki
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Publication number: 20100052204Abstract: A method for manufacturing aggregated resin particles, includes: preparing a microreactor that includes a first flow channel, a second flow channel, and a confluent flow channel, to which the first flow channel and the second flow channel merge; introducing a first fluid that contains resin particles dispersed therein into the first flow channel; introducing a second fluid that contains an aggregating agent into the second flow channel; feeding the first and second fluids so that a feed amount per unit time of the second fluid is greater than a feed amount per unit time of the first fluid, so as to form a laminar flow, in which the first fluid and the second fluid are merged, in the confluent flow channel; and forming aggregated resin particles by aggregating the resin particles.Type: ApplicationFiled: February 27, 2009Publication date: March 4, 2010Applicant: FUJI XEROX CO., LTD.Inventors: Seiichi TAKAGI, Hiroyuki MORIYA, Hideya KATSUHARA, Tomohito NAKAJIMA, Takashi IMAI, Shingo ISHIMARU
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Patent number: 7648033Abstract: A method of producing a particle-dispersed liquid, using a channel of micro width having a core flow channel, includes: sending the particle-dispersed liquid containing larger particles to an inner portion of the core flow channel; separating and removing the larger particles from the particle-dispersed liquid; and sending the removed larger particles to an outermost part of the core flow channel. An outer diameter of the core flow channel is 50 to 5,000 ?m.Type: GrantFiled: September 28, 2005Date of Patent: January 19, 2010Assignee: Fuji Xerox Co., Ltd.Inventors: Seiichi Takagi, Tetsuo Ohta
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Patent number: 7572375Abstract: The present invention provides a method for treating fine particles contained in a first fluid comprising: feeding the first fluid containing the fine particles and a second fluid to generate two laminar flows; migrating a diffusible substance contained in the first fluid into the second fluid at an interface between the first fluid and the second fluid in the laminar flows; and separating the laminar flows into the first fluid containing the fine particles and the second fluid in a diverging region.Type: GrantFiled: August 31, 2004Date of Patent: August 11, 2009Assignee: Fuji Xerox Co., Ltd.Inventors: Seiichi Takagi, Kazuya Hongo, Hiroshi Miyamoto, Tetsuo Ohta, Kazuki Inami
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Publication number: 20080260441Abstract: The toner cartridge is provided with: a toner storing container of a rectangular shape having a toner feeding opening in an angular portion of the toner storing container; a stirring conveying member that is disposed so as to rotate in a predetermined rotation direction in the toner storing container and stirs and conveys toner in the toner storing container toward the toner feeding opening; a waste toner storing container that stores reclaimed toner; and a partition member that is held by the toner storing container, partitions between the toner storing container and the waste toner storing containers and has a bearing portion axially supporting a rotating shaft of the stirring conveying member and extending into inside of the waste toner storing container. The toner stored in the toner storing container has an average value of a shape factor (SF1) of about 130 or less.Type: ApplicationFiled: December 17, 2007Publication date: October 23, 2008Applicant: FUJI XEROX CO., LTD.Inventors: Seiichi TAKAGI, Yasushige NAKAMURA, Takashi HINO, Tsutomu UEZONO, Masanori MURASE, Koichi TANAKA, Kazuhiro SAITO
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Publication number: 20080240987Abstract: A micro fluidic device comprises a micro channel in which a plurality of fluids form laminar flows and are supplied, wherein an inner wall of the micro channel comprise a protruding part that is substantially parallel to the flows of the fluids and protrudes in directions substantially vertical to interfaces formed by the plurality of fluids.Type: ApplicationFiled: October 5, 2007Publication date: October 2, 2008Applicant: FUJI XEROX CO., LTD.Inventors: Takayuki Yamada, Masaki Hirota, Kazuaki Tabata, Seiichi Takagi
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Publication number: 20080188597Abstract: A resin composition includes an aliphatic polyester; a second polymer compound other than the aliphatic polyester; and an organic phosphoric acid compound that has a phosphorus content of about 20% by mass or more.Type: ApplicationFiled: January 31, 2008Publication date: August 7, 2008Applicants: FUJI XEROX CO., LTD., FUJIFILM CORPORATIONInventors: Masahiro Moriyama, Kenji Yao, Seiichi Takagi, Masayuki Okoshi, Fumiyuki Suzuki, Tadashi Mochizuki, Hidetoshi Kawasaki
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Patent number: 7328807Abstract: The present invention provides a method for classifying fine particles, the method comprising: introducing a fine particle dispersion in which fine particles are dispersed in a liquid medium into an inlet of a microchannel having the inlet and a recovery portion; and delivering the fine particle dispersion, which has been introduced through the inlet, to the recovery portion in laminar flow, wherein delivering the fine particle dispersion includes classifying the fine particles using the difference in sedimentation speed or floatation speed among the fine particles in the fine particle dispersion. The present invention also provides a device used in the method for classifying fine particles.Type: GrantFiled: April 25, 2005Date of Patent: February 12, 2008Assignee: Fuji Xerox Co., Ltd.Inventors: Seiichi Takagi, Kazuki Inami, Tetsuo Ohta
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Publication number: 20080031790Abstract: A microreactor apparatus includes; a microreactor body that includes first and second substrates; a microchannel that is formed inside the microreactor body; and integral connectors that are disposed detachably on the microreactor body, and through which supply/discharge pipes are to be connected to end portions of the microchannel, respectively.Type: ApplicationFiled: February 15, 2007Publication date: February 7, 2008Applicant: FUJI XEROX CO., LTD.Inventors: Tetsuo Ohta, Seiichi Takagi
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Publication number: 20080017553Abstract: The present invention provides a method for classifying fine particles, the method comprising: introducing a fine particle dispersion in which fine particles are dispersed in a liquid medium into an inlet of a microchannel having the inlet and a recovery portion; and delivering the fine particle dispersion, which has been introduced through the inlet, to the recovery portion in laminar flow, wherein delivering the fine particle dispersion includes classifying the fine particles using the difference in sedimentation speed or floatation speed among the fine particles in the fine particle dispersion. The present invention also provides a device used in the method for classifying fine particles.Type: ApplicationFiled: September 19, 2007Publication date: January 24, 2008Applicant: FUJI XEROX CO., LTD.Inventors: Seiichi Takagi, Kazuki Inami, Tetsuo Ohta
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Publication number: 20070284249Abstract: A microchannel cleaning method includes: generating bubbles by electrolyzing a fluid flowing through a microchannel; and passing the fluid containing the bubbles through the microchannel.Type: ApplicationFiled: November 9, 2006Publication date: December 13, 2007Applicant: FUJI XEROX CO., LTD.Inventors: Tetsuo Ohta, Seiichi Takagi
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Publication number: 20070207402Abstract: The invention provides a toner for electrostatic latent image development comprising a first component and a second component which are isolated from each other and capable of forming a color when the first component and the second component are brought into reaction with each other, and a photo-curable composition containing either the first component or the second component, the photo-curable composition not being capable of forming a color when the photo-curable composition is not cured, that is irreversibly controlled to a state of being capable of forming a color by irradiating light having a specific wavelength at which the photo-curable composition is cured.Type: ApplicationFiled: August 16, 2006Publication date: September 6, 2007Applicant: FUJI XEROX CO., LTD.Inventors: Seiichi Takagi, Takashi Imai, Susumu Yoshino, Katsumi Daimon, Emi Takahashi, Toyofumi Inoue, Yasushige Nakamura, Isao Ito
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Publication number: 20070119754Abstract: A method of classifying fine particles includes: introducing a fine particle dispersion containing the fine particles to a micro flow channel having an inlet part and a collection part from the inlet part; moving the fine particles to an inner upper side of the micro flow channel by an electric field applied in a gravitational direction; and delivering the fine particle dispersion in a laminar flow state to the collection part. The delivering step includes classifying the fine particles according to differences in settling velocity among the fine particles.Type: ApplicationFiled: February 17, 2006Publication date: May 31, 2007Applicant: FUJI XEROX CO., LTD.Inventors: Seiichi Takagi, Okimasa Okada, Tetsuo Ohta