Patents by Inventor Masaki Hirota
Masaki Hirota 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: 8679336Abstract: 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: GrantFiled: April 13, 2009Date of Patent: March 25, 2014Assignee: 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: 20140064297Abstract: A communication device includes: first and second memories configured to store first and second packets in first and second queues, respectively; a processor configured to: select a packet to be transmitted by selecting the first packet in priority to the second packet, read the selected packet from the first or second queue, and detect the first packet stored in the first queue during reading of the second packet from the second queue; and a third memory configured to hold copied data relating to the second packet, wherein when detecting the first packet, the processor is configured to cause an internal or external part of the communication device to discard the currently read second packet, read the first packet stored in the first queue, and read the copied data from the third memory after completion of the reading of the first packet.Type: ApplicationFiled: June 20, 2013Publication date: March 6, 2014Inventor: Masaki HIROTA
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Patent number: 8585278Abstract: A micro fluidic device is provided, the micro fluidic device including: at least one first introduction pipe into which first fluid is introduced; at least one second introduction pipe into which second fluid is introduced, the second introduction pipe being disposed adjacent to the first introduction pipe; a common channel connected to the first introduction pipe and the second introduction pipe, wherein in the common channel the first fluid and the second fluid are mixed; and a first group of rectification parts, the rectification parts of the first group being provided individually for the first introduction pipe or the second introduction pipe and generating a helical flow in the first fluid and the second fluid, wherein the helical flow in the first fluid and the helical flow in the second fluid have a same circumferential direction.Type: GrantFiled: October 7, 2009Date of Patent: November 19, 2013Assignee: Fuji Xerox Co., Ltd.Inventors: Mutsuya Takahashi, Masaki Hirota, Takayuki Yamada
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Patent number: 8582467Abstract: A method for preventing a control packet loop in a network realizing node redundancy or circuit redundancy based on a rapid spanning tree protocol or a multiple spanning tree protocol is disclosed. The method includes the steps of: detecting a loop of a control packet of the rapid spanning tree protocol or the multiple spanning tree protocol; and discarding the control packet by which the loop is detected so as to prevent occurrence of the loop of the control packet.Type: GrantFiled: December 28, 2004Date of Patent: November 12, 2013Assignee: Fujitsu LimitedInventors: Masaki Hirota, Kazuto Nishimura, Yasushi Sasakawa, Kou Takatori
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Publication number: 20130235878Abstract: A data block output apparatus includes a first queue that stores data blocks of first traffic; a second queue that stores data blocks of second traffic and is read preferentially over the first queue; a monitoring unit that monitors for occurrence of data blocks read out of the second queue after reading of a data block from the first queue is completed; and a control unit that controls a data block interval between completion of reading of one data block in the first traffic and a start of reading of a next data block in the first traffic when occurrence frequency of the data blocks read out of the second queue after the reading of one data block from the first queue is completed is equal to or higher than a predetermined value.Type: ApplicationFiled: December 20, 2012Publication date: September 12, 2013Applicant: Fujitsu LimitedInventor: Masaki HIROTA
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Patent number: 8521903Abstract: Disclosed is a method of setting a bidirectional path between a first node and a second node in a network. A first path from the first node to the second node is established by a first path establishing procedure in which a first path message including a record of a route through which the first path message is forwarded from the first node to the second node. A second path from the second node to the first node along the route of the first path in the backward direction is established by a second path establishing procedure in which a second path message including a route specification determined based on the record of the route included in the first path message is transferred from the second node to the first node.Type: GrantFiled: February 1, 2008Date of Patent: August 27, 2013Assignee: Fujitsu LimitedInventor: Masaki Hirota
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Patent number: 8422366Abstract: In a data transmission device and method provided with duplexed switches outputting frames in the order of input for continuing the communication without instantaneous interruptions even though one of the switches is faulted, input interfaces generate frames in which every time data is inputted, input order information indicating the input order is added to the data together with unique information of each input interface and providing the frame generated to the switches in parallel. At least one output interface sequentially stores the frames outputted from the switches for every unique information and selects a first arrived frame among the frames stored with same input order information.Type: GrantFiled: May 20, 2010Date of Patent: April 16, 2013Assignee: Fujitsu LimitedInventors: Masaki Hirota, Hiroshi Tomonaga, Akihiro Hata, Shigeyuki Kobayashi
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Patent number: 8418719Abstract: A microchannel device includes; a microchannel that forms two or more different fluids as a multiphase flow, and a section shape of the multiphase flow having in at least one portion a first shape in which plural polygons are two-dimensionally arranged, and adjacent to one another, a second shape in which a polygon is inscribed in one of a circle and an ellipse, or circumscribes one of a circle and an ellipse, or a third shape in which at least plural circles and polygons are two-dimensionally arranged, and adjacent to one another.Type: GrantFiled: April 9, 2007Date of Patent: April 16, 2013Assignee: Fuji Xerox Co., Ltd.Inventors: Kazuaki Tabata, Takayuki Yamada, Masaki Hirota
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Publication number: 20130077509Abstract: A relaying apparatus includes a memory that stores a program including a procedure, and a processor that executes the program including the procedure, wherein the procedure includes delaying, when received packet data includes a synchronization message for any one of a frequency synchronization and a time synchronization, a transmission of the received packet data so that a period of time for a relaying process attains a given value.Type: ApplicationFiled: August 2, 2012Publication date: March 28, 2013Applicant: FUJITSU LIMITEDInventor: Masaki Hirota
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Patent number: 8360243Abstract: A liquid transporting apparatus includes: a microchannel; a transporting liquid supply port through which transporting liquid is supplied to the microchannel; a partition wall as defined herein, and that has an opening; a first split channel that is provided on an upper side of the partition wall; a second split channel that is provided on a lower side of the partition wall; a particle dispersion supply port through which a particle dispersion is supplied to a middle portion of a width direction of the first split channel; and at least one drain port through which the fluid is discharged from downstreams of the first and second split channels, and a pattern that generates an upward-directed flow with respect to a vertical direction in a middle portion of a section of the microchannel is formed in an inner wall of the microchannel or in the partition wall.Type: GrantFiled: March 24, 2010Date of Patent: January 29, 2013Assignee: Fuji Xerox Co., Ltd.Inventors: Takayuki Yamada, Hiroshi Kojima, Kazuaki Tabata, Masaki Hirota, Kazuya Hongo
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Patent number: 8349273Abstract: A microreactor device comprises: a microchannel that sends one or more fluids; and a section that isolates vibrations to a first portion of the microchannel.Type: GrantFiled: August 4, 2008Date of Patent: January 8, 2013Assignee: Fuji Xerox Co., Ltd.Inventors: Kazuaki Tabata, Yoshihisa Yamazaki, Masaki Hirota, Takayuki Yamada, Daisuke Nagao
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Publication number: 20120140776Abstract: A communication device includes a memory to store data and a processor to receive data, to convert the received data and a same data of the received data among the stored data into a predetermined format, and to transmit data resulting from the data conversion.Type: ApplicationFiled: December 2, 2011Publication date: June 7, 2012Applicant: FUJITSU LIMITEDInventor: Masaki HIROTA
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Publication number: 20120103090Abstract: A liquid level detector is provided. A resistance plate has a plurality of conductive segments. A float vertically moves according to change of a liquid level to be measured. A float arm has one end attached to the float and the other end rotatably supported to rotate according to the vertical movement of the float. Contact points slide on the conductive segments with the rotation of the float arm according to the liquid level. The conductive segments are formed of a glass-sintered metallic body made of glass and gold alloy material containing a gold (Au) content equal to or greater than 18% by mass and less than 40% by mass. The contact points are formed of a gold alloy material containing a gold (Au) content equal to or greater than 32.5% by mass and less than 77% by mass.Type: ApplicationFiled: October 21, 2011Publication date: May 3, 2012Inventors: Toshio Oike, Ryo Hirose, Masaki Hirota
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Publication number: 20120019099Abstract: A ceramic electronic component includes a ceramic base, first and second internal electrodes, and first and second external electrodes. The first external electrode is disposed at a first end portion of a first major surface in the longitudinal direction. The second external electrode is disposed at a second end portion of the first major surface in the longitudinal direction. A portion of each of the first and second external electrodes is opposed in the thickness direction to a region where the first and second internal electrodes are opposed to each other in the thickness direction. A condition ( 1/10)t0?t1?(?)t0 is satisfied, where t0 is the thickness of each of the first and second external electrodes and t1 is the thickness of a portion in which each of the first and second external electrodes is embedded in the first major surface.Type: ApplicationFiled: July 21, 2011Publication date: January 26, 2012Applicant: MURATA MANUFACTURING CO., LTD.Inventors: Koji SATO, Yukio SANADA, Yasuhiro NISHISAKA, Masaki HIROTA
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Patent number: 8049424Abstract: The invention relates to a light source device having a high-voltage discharge lamp (1) on which a trigger line (10) for triggering the lamp is attached. The high-voltage discharge lamp (1) is formed such that an arc tube (7) having a pair of substantially cylindrical sealing portions (9R, 9L) formed on both sides in the longitudinal direction with a light emitting portion (8) in between is sealed with electrode assemblies (3R, 3L). The trigger line (10) is formed such that its one end (10a) is connected to a power supply lead (6), which is of the electrode assembly (3L) and protruded from the one sealing portion (9L), and its other end (10c) is wound around the outer circumference of the other sealing portion (9R).Type: GrantFiled: May 23, 2007Date of Patent: November 1, 2011Assignee: Iwasaki Electric Co., Ltd.Inventors: Sumio Uehara, Tooru Nagase, Kyouichi Maseki, Kouichi Nakajima, Makoto Ookahara, Yoshiaki Komatsu, Masaki Hirota, Masaki Kamimura
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Patent number: 7993934Abstract: A reaction method using a microreactor, comprises: forming, in a microchannel, an at least two-layered laminar flow in n kinds (n is an integer of 3 or more) of a fluid 1, a fluid 2, . . . , and a fluid n at least two kinds of which are mutually incompatible; and pulsating at least one kind of the fluids.Type: GrantFiled: August 20, 2008Date of Patent: August 9, 2011Assignee: Fuji Xerox Co., Ltd.Inventors: Kazuaki Tabata, Masaki Hirota, Takayuki Yamada
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Patent number: 7983190Abstract: In a layer 2 communication device included in multiple layer 2 networks, an identifying unit identifies a layer 3 control packet from among packets passing through, and an embedding unit embeds routing control information for the layer 2 network in the layer 3 control packet. In a layer 3 communication device connected to the multiple layer 2 networks, a selecting unit selects from the multiple layer 2 networks, an optimum L2 network, that is a layer 2 network forming an optimum communication route, based on a communication destination, and a setting unit sets a packet to be transmitted to the optimum L2 network.Type: GrantFiled: September 15, 2005Date of Patent: July 19, 2011Assignee: Fujitsu LimitedInventor: Masaki Hirota
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Publication number: 20110168210Abstract: A micro-nano bubble generating method comprises: introducing a liquid into a microchannel, in which the microchannel is defined by a microchannel wall an entirety or a portion of which is formed by a porous wall having through pores with radii of 10 to 1,000 nm; and supplying a gas directly into the microchannel from outside the porous wall by a pressurized-gas supplying section, to allow micro-nano bubbles to be contained in the liquid.Type: ApplicationFiled: August 22, 2008Publication date: July 14, 2011Applicant: FUJI XEROX CO., LTD.Inventors: Kazuaki TABATA, Masato MIKAMI, Masaki HIROTA
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Publication number: 20110084587Abstract: The invention relates to a light source device having a high-voltage discharge lamp (1) on which a trigger line (10) for triggering the lamp is attached. The high-voltage discharge lamp (1) is formed such that an arc tube (7) having a pair of substantially cylindrical sealing portions (9R, 9L) formed on both sides in the longitudinal direction with a light emitting portion (8) in between is sealed with electrode assemblies (3R, 3L). The trigger line (10) is formed such that its one end (10a) is connected to a power supply lead (6), which is of the electrode assembly (3L) and protruded from the one sealing portion (9L), and its other end (10c) is wound around the outer circumference of the other sealing portion (9R).Type: ApplicationFiled: May 23, 2007Publication date: April 14, 2011Applicant: IWASAKI ELECTRIC CO., LTD.Inventors: Sumio Uehara, Tooru Nagase, Kyouichi Maseki, Kouichi Nakajima, Makoto Ookahara, Yoshiaki Komatsu, Masaki Hirota, Masaki Kamimura
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Publication number: 20110080834Abstract: A communication apparatus that sends and receives signals, the communication apparatus includes a pause signal transmitter that transmits a pause signal to a plurality of linked apparatus that send data to the communication apparatus, wherein the pause signal requests that the transmission of data to the communication apparatus be temporarily paused, and a transmission controller that uses guaranteed rates prescribed for respective linked apparatus as a basis for separately controlling how the pause signal is transmitted to respective linked apparatus receiving the signal, wherein the transmission controller controls how the pause signal is transmitted such that the data transfer rates from respective linked apparatus to the communication apparatus become rates equal to or greater than the guaranteed rates corresponding to the respective linked apparatus.Type: ApplicationFiled: October 1, 2010Publication date: April 7, 2011Applicant: FUJITSU LIMITEDInventors: Masaki Hirota, Jun Tanaka