Patents by Inventor Yoshiyuki Maeda
Yoshiyuki Maeda 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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Publication number: 20100205398Abstract: In an optical transmission device, firmware that operates within a CPU of a first LIU and firmware that operates within a CPU of a second LIU periodically measure a load status of a CPU via an OS, respectively. Switchover control of a master CPU is performed according to a load status of a CPU measured by the firmware of each LIU. For example, when a load status of the CPU of the second LIU is lower than that of the CPU of the first LIU, a master CPU that performs switchover control of a predetermined port is switched to a slave CPU in the first LIU, and a slave CPU related to the predetermined port is switched to a master CPU in the second LIU, thereby dynamically changing the setting.Type: ApplicationFiled: April 13, 2010Publication date: August 12, 2010Applicant: FUJITSU LIMITEDInventors: Yoshiyuki Maeda, Yumiko Ogata, Taku Yoshida, Seiji Miyata
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Patent number: 7724736Abstract: A frame forwarding apparatus comprises a receiving unit receiving a frame including a source address, a destination address and a VWAN identifier; a converting unit converting a VWAN identifier in the frame into one of degenerate VWAN identifiers that the number of adoptable values thereof is smaller than the number of VWAN identifiers; a storage unit containing at least one entry containing the source address in the frame, a degenerate VWAN identifier that a VWAN identifier in the frame is converted, and path information representing a path via which the frame is received; a retrieving unit retrieving, from said storage unit, an entry corresponding to the destination address in the frame and the degenerate VWAN identifier in the frame; a restoring unit restoring the degenerate VWAN identifier in the frame into the original VWAN identifier; and a transmitting unit transmitting the frame based on the path information in the entry retrieved.Type: GrantFiled: September 28, 2007Date of Patent: May 25, 2010Assignee: Fujitsu LimitedInventors: Yoshiyuki Maeda, Hironori Kadota, Yoko Toyozumi, Yumiko Ogata, Yoshiko Sakamoto, Seiji Miyata, Hiromu Yoshi
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Publication number: 20100074629Abstract: An optical communication apparatus includes an optical signal transmitter for outputting an optical signal, an optical switch device for switching a route of the optical signal, a drive controller for supplying a drive current for controlling a route switching to the optical switch device, a cooling device for cooling the optical switch device on the basis of a control signal, a temperature controller for transmitting the control signal to the cooling device in order to keep a measured temperature at a specific temperature, where the measured temperature is related to a temperature of the optical switch device.Type: ApplicationFiled: September 14, 2009Publication date: March 25, 2010Applicant: Fujitsu LimitedInventors: Keisuke HARADA, Taku YOSHIDA, Yoshiyuki MAEDA
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Publication number: 20080226299Abstract: An optical transmission apparatus includes redundant line cards each having a plurality of ports, a hardware unit and a CPU. The hardware unit obtains failure information on redundant lines for each port. The CPU determines switching control of the redundant lines based on the failure information. Then, the hardware unit switches the redundant lines based on the switching control determined by the CPU, so as to transmit an SDH/SONET optical signal in a ring network. The CPU of one of the line cards is set as a master CPU on the corresponding line card to control switching of the redundant lines. Further, the CPU of the other line card is set as a slave CPU.Type: ApplicationFiled: February 21, 2008Publication date: September 18, 2008Applicant: FUJITSU LIMITEDInventors: Yoshiyuki Maeda, Hironori Kadota, Taku Yoshida, Yoshinobu Matsukawa
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Publication number: 20080226304Abstract: An optical transmission apparatus includes redundant line cards each installed with hardware and a CPU. The hardware obtains failure information on redundant lines including a working line and a protection line, and the CPU determines switching control of the redundant lines based on the obtained failure information. Further, the hardware switches the redundant lines based on switching control determined by the CPU, so as to transmit an SDH/SONET optical signal. In the apparatus, from or to hardware installed in each of the redundant line cards, the failure information obtained by the hardware is communicated to hardware installed in a neighboring line card.Type: ApplicationFiled: February 27, 2008Publication date: September 18, 2008Applicant: FUJITSU LIMITEDInventors: Yoshiyuki Maeda, Hironori Kadota, Taku Yoshida, Yoshinobu Matsukawa
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Patent number: 7353816Abstract: The object of the present invention is to improve shooting precision by causing a bullet to be fired before retreating of the slide commences, which is a problem in related art 3.Type: GrantFiled: August 2, 2007Date of Patent: April 8, 2008Assignee: Maruzen Company LimitedInventors: Tetsuo Maeda, Yoshiyuki Maeda
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Publication number: 20080031271Abstract: A frame forwarding apparatus comprises a receiving unit receiving a frame including a source address, a destination address and a VWAN identifier; a converting unit converting a VWAN identifier in the frame into one of degenerate VWAN identifiers that the number of adoptable values thereof is smaller than the number of VWAN identifiers; a storage unit containing at least one entry containing the source address in the frame, a degenerate VWAN identifier that a VWAN identifier in the frame is converted, and path information representing a path via which the frame is received; a retrieving unit retrieving, from said storage unit, an entry corresponding to the destination address in the frame and the degenerate VWAN identifier in the frame; a restoring unit restoring the degenerate VWAN identifier in the frame into the original VWAN identifier; and a transmitting unit transmitting the frame based on the path information in the entry retrieved.Type: ApplicationFiled: September 28, 2007Publication date: February 7, 2008Inventors: Yoshiyuki Maeda, Hironori Kadota, Yoko Toyozumi, Yumiko Ogata, Yoshiko Sakamoto, Seiji Miyata, Hiromu Yoshii
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Publication number: 20080017180Abstract: The object of the present invention is to improve shooting precision by causing a bullet to be fired before retreating of the slide commences, which is a problem in related art 3.Type: ApplicationFiled: August 2, 2007Publication date: January 24, 2008Applicant: Maruzen Company LimitedInventors: Tetsuo Maeda, Yoshiyuki Maeda
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Publication number: 20080002589Abstract: A communication processing apparatus appends group information representing a group to received communication frames. Group information to be appended to the communication frames is changed on a predetermined cycle. The communication frames processed in each processing unit are counted separately for each of the group information appended, and the count value is collected in each processing unit. With a communication processing apparatus, such as a switch and a router, which has a plurality of processing units (device), performs processing by each of the processing units on the communication frames received from a receiving unit, and transmits the processed communication frames from a transmitting unit, it is possible to realize a communication processing apparatus and a totalizing system capable of accurately counting and collecting the communication frames while performing an operation when totalizing the number of communication frames processed in each of the processing units.Type: ApplicationFiled: September 14, 2007Publication date: January 3, 2008Inventors: Hiromu YOSHII, Hironori KADOTA, Yoko TOYOZUMI, Yumiko OGATA, Taku YOSHIDA, Yoshiyuki MAEDA, Yoshiko SAKAMOTO, Seiji MIYATA, Kazuyuki INOMOTO
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Patent number: 7290539Abstract: An apparatus for installing a high-pressure gas cartridge of this invention comprises: a high-pressure gas cartridge attachment and detachment apparatus for an air gun comprising: a high-pressure gas cartridge housing provided in a clip of an air gun; a back grip panel for a grip formed as a clamp lever; a lever rotation axis constituting a rotation fulcrum for a back grip panel; and a pressing curved surface capable of pressing a bottom part of the high-pressure gas cartridge, wherein a side grip panel of the grip is provided in an attachable and detachable manner so as to open and close the high-pressure gas cartridge housing, the high-pressure gas cartridge may be attached and detached with the back grip panel of the grip rotated about the lever rotation fulcrum so as to be in an open state, and the back grip panel presses against the bottom of the high-pressure gas cartridge due to rotation centered about the lever rotation axis so as to be closed and so as to push up and install the high-pressure gas carType: GrantFiled: May 23, 2005Date of Patent: November 6, 2007Assignee: Maruzen Company LimitedInventors: Tetsuo Maeda, Yoshiyuki Maeda
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Publication number: 20070223479Abstract: A communication processing apparatus appends group information representing a group to received communication frames. Group information to be appended to the communication frames is changed on a predetermined cycle. The communication frames processed in each processing unit are counted separately for each of the group information appended, and the count value is collected in each processing unit. With a communication processing apparatus, such as a switch and a router, which has a plurality of processing units (device), performs processing by each of the processing units on the communication frames received from a receiving unit, and transmits the processed communication frames from a transmitting unit, it is possible to realize a communication processing apparatus and a totalizing system capable of accurately counting and collecting the communication frames while performing an operation when totalizing the number of communication frames processed in each of the processing units.Type: ApplicationFiled: July 20, 2006Publication date: September 27, 2007Inventors: Hiromu Yoshii, Hironori Kadota, Yoko Toyozumi, Yumiko Ogata, Taku Yoshida, Yoshiyuki Maeda, Yoshiko Kojima, Seiji Miyata
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Patent number: 7267119Abstract: An air gun including a slide, a barrel, a cylinder portion, a hit pin, a hollow valve pin chamber, a valve body, a gas supply port, a valve pin, a pressing section, a bullet feed nozzle link connected to a trigger; and a bullet feed nozzle.Type: GrantFiled: December 30, 2004Date of Patent: September 11, 2007Assignee: Maruzen Company LimitedInventors: Tetsuo Maeda, Yoshiyuki Maeda
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Publication number: 20070147231Abstract: A path protection method is disclosed that is capable of path protection without extra cost and able to improve path switching efficiency. The method includes the steps of associating a virtual network identifier assigned to one or more users with a virtual network identifier for management, the virtual network identifier assigned to one or more users being regarded as one path to set a path for current use and a spare path; and when switching the currently-used path and the spare path, according to service class information included in the virtual network identifier for management, a path corresponding to a virtual network identifier for management having a higher service class than other paths is preferentially switched to.Type: ApplicationFiled: March 24, 2006Publication date: June 28, 2007Inventors: Taku Yoshida, Hironori Kadota, Yoko Toyozumi, Yumiko Ogata, Yoshiyuki Maeda, Hiromu Yoshii, Yoshiko Sakamoto, Seiji Miyata
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Patent number: 7159584Abstract: The airgun firing mechanism of the present invention has a rotary magazine 1 with a plurality of bores 11 made from a material through which magnetic force can pass, and a magnet 10 is provided in the center of the magazine 1. Also, the airgun firing mechanism of the present invention has inner diameters of respective bores 11 of the rotary magazine 1 having a plurality of bores 11 formed to inner diameters capable of having pellets 91 inserted into them, with the magazine 1 being formed from a material that can pass magnetic force, and with a magnet 10 being provided in the center of the magazine 1. In this way, it is possible to repeatedly fire two different types of bullets, namely BB bullets 90 and pellets 91, using one magazine 1 of one airgun G.Type: GrantFiled: May 28, 2003Date of Patent: January 9, 2007Assignee: Maruzen Company LimitedInventors: Tetsuo Maeda, Yoshiyuki Maeda
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Publication number: 20060260596Abstract: An apparatus for installing a high-pressure gas cartridge of this invention comprises: a high-pressure gas cartridge attachment and detachment apparatus for an air gun comprising: a high-pressure gas cartridge housing provided in a clip of an air gun; a back grip panel for a grip formed as a clamp lever; a lever rotation axis constituting a rotation fulcrum for a back grip panel; and a pressing curved surface capable of pressing a bottom part of the high-pressure gas cartridge, wherein a side grip panel of the grip is provided in an attachable and detachable manner so as to open and close the high-pressure gas cartridge housing, the high-pressure gas cartridge may be attached and detached with the back grip panel of the grip rotated about the lever rotation fulcrum so as to be in an open state, and the back grip panel presses against the bottom of the high-pressure gas cartridge due to rotation centered about the lever rotation axis so as to be closed and so as to push up and install the high-pressure gas carType: ApplicationFiled: May 23, 2005Publication date: November 23, 2006Inventors: Tetsuo Maeda, Yoshiyuki Maeda
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Patent number: 7100922Abstract: A bull's eye target device with a target surface section provided with a central section and a plurality of ring sections, and a circuit substrate provided so as to be spaced from the rear surface of the target surface section. The front surface side of the target surface section is formed in such a manner that the central section is raised to the greatest extent, with the plurality of ring sections becoming relatively lower as the periphery is approached, and a central pressing part and plurality of ring-shaped pressing parts are formed so as to project at the rear surface side at positions corresponding to the central section and the plurality of ring sections. The circuit substrate is provided with circular independent terminals at positions corresponding to the central pressing part and plurality of ring-shaped pressing parts of the target surface section.Type: GrantFiled: December 3, 2004Date of Patent: September 5, 2006Assignee: MARUZEN Company LimitedInventors: Tetsuo Maeda, Yoshiyuki Maeda
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Publication number: 20060162711Abstract: An air gun including a slide, a barrel, a cylinder portion, a hit pin, a hollow valve pin chamber, a valve body, a gas supply port, a valve pin, a pressing section, a bullet feed nozzle link connected to a trigger; and a bullet feed nozzle.Type: ApplicationFiled: December 30, 2004Publication date: July 27, 2006Inventors: Tetsuo Maeda, Yoshiyuki Maeda
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Publication number: 20060006597Abstract: An advantage of the invention is in providing a device a device capable of accurately determining a position to which a pellet has been fired and instantaneously sending points to a display unit. Namely, because the target surface is such that inside and outside of boundary lines are at different heights, in the event of an impact making contact with a boundary line, a pellet will always impact with and apply pressure to the inside part of the target for which the points are higher. A terminal of a circuit substrate corresponding to this higher points side then makes contact so as to provide excitation, and the points can be accurately displayed. The bull's eye target device of this invention is such that a target section is provided with a target surface section provided with a central section and a plurality of ring sections, and a circuit substrate provided so as to be spaced from the rear surface of the target surface section.Type: ApplicationFiled: December 3, 2004Publication date: January 12, 2006Inventors: Tetsuo Maeda, Yoshiyuki Maeda
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Publication number: 20040237952Abstract: The airgun firing mechanism of the present invention has a rotary magazine 1 with a plurality of bores 11 made from a material through which magnetic force can pass, and a magnet 10 is provided in the center of the magazine 1. Also, the airgun firing mechanism of the present invention has inner diameters of respective bores 11 of the rotary magazine 1 having a plurality of bores 11 formed to inner diameters capable of having pellets 91 inserted into them, with the magazine 1 being formed from a material that can pass magnetic force, and with a magnet 10 being provided in the center of the magazine 1. In this way, it is possible to repeatedly fire two different types of bullets, namely BB bullets 90 and pellets 91, using one magazine 1 of one airgun G.Type: ApplicationFiled: May 28, 2003Publication date: December 2, 2004Applicant: Maruzen Company LimitedInventors: Tetsuo Maeda, Yoshiyuki Maeda
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Patent number: RE39805Abstract: This invention can make a valve compact in function and improve using efficiency of a compressed gas and make an air gun compact. To achieve this object, an air gun is constructed by a hit pin arranged in a cylinder portion, a valve body arranged within a hollow portion of the cylinder portion and having a bullet supplying nozzle chamber and a valve pin chamber, a gas inlet port opened to a sleeve-shaped circumferential face of the valve pin chamber, a bullet supplying nozzle arranged within the bullet supplying nozzle chamber, and a valve pin arranged within the valve pin chamber. The hit pin is pressed on a muzzle side and the valve pin is slid to the muzzle side so that an airtight state between a valve pin flange portion and a side face of the valve pin chamber on its gun rear end side is released. A compressed gas is supplied to a nozzle chamber side opening and a valve pin chamber side opening from a clearance between the valve pin flange portion and the gun rear end side face of the valve pin chamber.Type: GrantFiled: February 16, 2006Date of Patent: September 4, 2007Assignee: Maruzen Company LimitedInventors: Tetsuo Maeda, Yoshiyuki Maeda, Yuichi Toyoda