Patents by Inventor Junichi Kawaguchi
Junichi Kawaguchi 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: 9650167Abstract: A sealing device is provided which is capable of a two-step holding operation with the use of a linear solenoid. The sealing device includes a stopping mechanism for stopping a movement of a movable part that forms the linear solenoid when the linear solenoid is driven at a predetermined midway point between a start point and an end point after the nozzle part has been moved from the waiting position to the stop position, and for releasing the movable part from a stop to allow the movable part to move again and reach the end point after the nozzle part has been returned from the stop position to the waiting position.Type: GrantFiled: June 20, 2012Date of Patent: May 16, 2017Assignee: Fuji Impulse Co., Ltd.Inventors: Kazukuni Yamada, Kazuyoshi Tarumoto, Yasuo Hashimoto, Junichi Kawaguchi, Suguru Akiyama
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Publication number: 20140150382Abstract: The present invention provides sealing device which is capable of a two-step holding operation with the use of a linear solenoid. The sealing device includes a stopping mechanism for stopping a movement of a movable part that forms the linear solenoid when the linear solenoid is driven at a predetermined midway point between a start point and an end point after the nozzle part has been moved from the waiting position to the stop position, and for releasing the movable part from a stop to allow the movable part to move again and reach the end point after the nozzle part has been returned from the stop position to the waiting position.Type: ApplicationFiled: June 20, 2012Publication date: June 5, 2014Applicant: FUJI IMPULSE CO., LTD.Inventors: Kazukuni Yamada, Kazuyoshi Tarumoto, Yasuo Hashimoto, Junichi Kawaguchi, Suguru Akiyama
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Patent number: 8369223Abstract: A packet processing apparatus includes a plurality of communication connecting unit each connected with a communication partner apparatus using one of a work path and a protection path, connecting unit for connecting, using a data bus, the plurality of communication connecting unit with one another; determination unit for, when a packet sent from the communication partner apparatus is received by one of the communication connecting unit, determining whether the packet is a maintenance packet that is used for monitoring a connection state with the communication partner apparatus; and transmitting unit for, when it is determined that the packet is a maintenance packet by the determination unit, transmitting the maintenance packet to the plurality of communication connecting unit using the data bus via the connecting unit.Type: GrantFiled: March 3, 2010Date of Patent: February 5, 2013Assignee: Fujitsu LimitedInventors: Koji Hachiya, Tetsuo Ehara, Yasuyuki Mitsumori, Kanta Yamamoto, Junichi Kawaguchi, Yuichiro Katsura
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Publication number: 20100246425Abstract: A packet processing apparatus includes a plurality of communication connecting unit each connected with a communication partner apparatus using one of a work path and a protection path, connecting unit for connecting, using a data bus, the plurality of communication connecting unit with one another; determination unit for, when a packet sent from the communication partner apparatus is received by one of the communication connecting unit, determining whether the packet is a maintenance packet that is used for monitoring a connection state with the communication partner apparatus; and transmitting unit for, when it is determined that the packet is a maintenance packet by the determination unit, transmitting the maintenance packet to the plurality of communication connecting unit using the data bus via the connecting unit.Type: ApplicationFiled: March 3, 2010Publication date: September 30, 2010Applicant: FUJITSU LIMITEDInventors: Koji HACHIYA, Tetsuo Ehara, Yasuyuki Mitsumori, Kanta Yamamoto, Junichi Kawaguchi, Yuichiro Katsura
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Patent number: 7764603Abstract: When a ringlet with a high frame transfer quality is selected as a switching candidate for each station of a transfer destination from information on frame transfer quality for each ringlet, when it is determined that a fundamental ringlet is in a preceding stage of degradation of the frame transfer quality from information on the frame transfer quality of the fundamental ringlet, and if the fundamental ringlet is different from the switching candidate, a ringlet for transferring a frame to a station of the transfer destination is switched from the fundamental ringlet to the switching candidate.Type: GrantFiled: September 11, 2007Date of Patent: July 27, 2010Assignee: Fujitsu LimitedInventors: Junichi Kawaguchi, Seishiro Taniguchi, Katsumi Imamura
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Patent number: 7593425Abstract: A signal distribution method and a signal distribution apparatus are disclosed, wherein transport packets of a television signal containing multiplexed channels are provided in a transmission format of a digital broadcasting standard, and such transport packets are transmitted and distributed over a synchronous network. Transmission rate (data speed) of the transport packets of a given customer in the synchronous network is selectable based on the number of multiplexed channels for the customer.Type: GrantFiled: July 8, 2004Date of Patent: September 22, 2009Assignee: Fujitsu LimitedInventors: Yoshiyuki Karakawa, Masaki Bansho, Yuji Kuroki, Junichi Kawaguchi, Koji Hachiya, Satoru Saitoh
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Publication number: 20080170577Abstract: An Ethernet frame nester nests Ethernet frames addressed to a plurality of remote station devices affiliated with a shared station device on the basis of the correspondence relation between a MAC address of the station device and MAC addresses of the remote station devices stored in a table and the transmission destination addresses of the Ethernet frames. The Ethernet frame nester then converts them into an RPR frame. When receiving an RPR frame addressed to the own station device, an Ethernet frame extractor extracts Ethernet frames from the RPR frame and transmits each Ethernet frame to the addressed remote station devices.Type: ApplicationFiled: January 9, 2008Publication date: July 17, 2008Applicant: FUJITSU LIMITEDInventors: Takeshi Sumou, Yoshiyuki Karakawa, Kousuke Nakamura, Katsumi Imamura, Junichi Kawaguchi, Hideyo Fukunaga
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Publication number: 20080095044Abstract: When a ringlet with a high frame transfer quality is selected as a switching candidate for each station of a transfer destination from information on frame transfer quality for each ringlet, when it is determined that a fundamental ringlet is in a preceding stage of degradation of the frame transfer quality from information on the frame transfer quality of the fundamental ringlet, and if the fundamental ringlet is different from the switching candidate, a ringlet for transferring a frame to a station of the transfer destination is switched from the fundamental ringlet to the switching candidate.Type: ApplicationFiled: September 11, 2007Publication date: April 24, 2008Applicant: FUJITSU LIMITEDInventors: Junichi Kawaguchi, Seishiro Taniguchi, Katsumi Imamura
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Publication number: 20060222007Abstract: Provided is an RPR ring network system including: a plurality of RPR station devices; and a ring for interconnecting the plurality of RPR station devices, in which a section between adjacent RPR station devices is defined as a section of the ring, a bandwidth different from bandwidths of other sections are allocated to at least one section, and each of the RPR station devices transmits a frame, in the case of transmitting the frame to the other RPR station device through the ring, by a transmission bandwidth with a minimum value of a bandwidth allocated to a section through which the frame flows set as an upper limit.Type: ApplicationFiled: July 28, 2005Publication date: October 5, 2006Inventors: Yoshiyuki Karakawa, Yuji Kuroki, Junichi Kawaguchi
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Publication number: 20050117608Abstract: A signal distribution method and a signal distribution apparatus are disclosed, wherein transport packets of a television signal containing multiplexed channels are provided in a transmission format of a digital broadcasting standard, and such transport packets are transmitted and distributed over a synchronous network. Transmission rate (data speed) of the transport packets of a given customer in the synchronous network is selectable based on the number of multiplexed channels for the customer.Type: ApplicationFiled: July 8, 2004Publication date: June 2, 2005Inventors: Yoshiyuki Karakawa, Masaki Bansho, Yuji Kuroki, Junichi Kawaguchi, Koji Hachiya, Satoru Saitoh
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Patent number: 6031838Abstract: An ATM switching system concentrates cell streams, which are output by respective ones of a plurality of line interfaces, by a concentrator, enters a resulting cell stream into an ATM switch unit, deconcentrates cells, which have been switched by the ATM switch unit, by a deconcentrator on a per line interface basis and sends the cells to lines. Each line interface converts a VPI/VCI included in the header of a cell that has entered from a line to an internal cell address having a number of bits smaller than the number of bits of the VPI/VCI. Each unit in the ATM switching system performs management of various data and controls cell switching based upon a converted cell address without relying upon the VPI/VCI. The line interface restores an internal cell address, which is included in the header of a cell that enters from the side of the ATM switch, to the VPI/VCI and sends the cell to a line.Type: GrantFiled: August 4, 1997Date of Patent: February 29, 2000Assignee: Fujitsu LimitedInventors: Kenichi Okabe, Junichi Kawaguchi, Hiroko Yoshino, Masakazu Sato, Hiroshi Ishiwata
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Patent number: 5563093Abstract: The present invention provides the method of manufacturing a dual-gate CMOS device which has high transconductance and improved breakdown voltage, in which depletion in the interface between a gate oxide and a gate electrode is prevented without the increase of the steps of process.A gate oxide film (5) formed on a semiconductor substrate (1) is washed with an aqueous solution, or exposed to a gas atomosphere containing hydrogen, and an amorphous silicon film (3) is formed on the whole surface of the gate oxide film (5). The amorphous silicon film (3) is then crystallized. Alternatively, after a silicon oxide film (53) or a silicon nitrided film is formed on the amorphous silicon film (3), the amorhpous silicon film (3) is crystallized.Type: GrantFiled: May 1, 1995Date of Patent: October 8, 1996Assignee: Kawasaki Steel CorporationInventors: Munetaka Koda, Yoshikatsu Shida, Junichi Kawaguchi, Takehiro Murakami, Yoshio Kaneko
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Patent number: 5262363Abstract: An overglaze color for pottery. Pigment is added to a colorless frit which has the composition (wt %):(1) silicon dioxide 30 to 70(2) alumina 0.1 to 15(3) boron oxide 20 to 40(4) alkali metal oxide 2 to 17(5) one or more oxide selected from lanthanum oxide, niobium oxide, tantalum oxide, hafnium oxide, scandium oxide, samarium oxide, europium oxide, gadolinium oxide, thulium oxide, ytterbium oxide, lutetium oxide, terbium oxide, or dysprosium oxide 0.1 to 15and having a thermal expansion coefficient of 5.0.times.10.sup.-6 /.degree. C. to 7.0.times.10.sup.-6 /.degree. C. at 50.degree. to 350.degree. C. and a thermal softeningpVperature of 500.degree. to 640.degree. C. The overglaze color according to the invention causes no cracking, increases the color developing property of the pigment and has high chemical durability.Type: GrantFiled: February 2, 1993Date of Patent: November 16, 1993Assignee: Saga PrefectureInventors: Shuji Yoshida, Yasuyuki Tsutsumi, Satoru Noudomi, Junichi Kawaguchi
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Patent number: D593586Type: GrantFiled: February 4, 2008Date of Patent: June 2, 2009Assignee: Fujimpulse Co., Ltd.Inventors: Yasuo Hashimoto, Junichi Kawaguchi, Kazuyoshi Tarumoto