Patents by Inventor Kiyoshi Yamaguchi
Kiyoshi Yamaguchi 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: 9007145Abstract: A high-frequency module enabling sufficient attenuation over a wide frequency range outside of a passband includes a triplexer including a combination of an LPF, a BPF, and HPFs arranged to demultiplex a signal input from a common terminal into a first communication signal, a second communication signal, and a third communication signal in different frequency bands, and to output the first, second, and third communication signals from individual terminals. The individual terminals of the triplexer are connected to respective baluns. The baluns are configured such that the respective passbands of the baluns overlap the respective frequency bands of the communication signals and the respective passbands of the triplexer, and the attenuation of the baluns at the attenuation poles of the triplexer is ?3 dB or greater. This configuration provides high attenuation in the rebound bands of the attenuation poles.Type: GrantFiled: May 31, 2011Date of Patent: April 14, 2015Assignee: Murata Manufacturing Co., Ltd.Inventors: Tomoya Bando, Kiyoshi Yamaguchi, Yasunori Nabetani
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Patent number: 8977103Abstract: A video data processing apparatus includes a reading unit reading video data from a video data file recorded on a randomly accessible storage medium in response to a first control signal, and reading position data indicating a frame position of the video data in the video data file from the video data file recorded on the storage medium in response to a second control signal, a memory storing the position data read by the reading unit, and a controller controlling the reading unit by outputting the second control signal before the outputting of the first control signal, and controlling the reading unit by outputting the first control signal with a designation of particular video data to be read indicated by the position data stored in the memory, in response to a request to execute a process to the video data file.Type: GrantFiled: July 22, 2009Date of Patent: March 10, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Toshiki Mori, Yoshiro Osaki, Naoko Satoh, Kiyoshi Yamaguchi, Yasuyuki Ushio, Kenji Kimiyama
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Publication number: 20150032708Abstract: A database analysis apparatus pays its attention to table columns more than two constituting a table among plural tables that a database holds, and analyzes automatically a dependence and a limitation condition that exist between the table columns from a tendency of appearance at the same time of data which each table column maintains, which comprises a data category calculation means to calculate a method of categorizing a data group from association rules generated from the data group of two or more table columns and an association rules reconstruction means to generate association rules of the best granularity by reconstructing the association rules based on the result of the above categorizing.Type: ApplicationFiled: July 24, 2014Publication date: January 29, 2015Applicant: HITACHI, LTD.Inventors: Yasunori HASHIMOTO, Ryota MIBE, Kentaro YOSHIMURA, Hirofumi DANNO, Keishi OSHIMA, Sadahiro ISHIKAWA, Kiyoshi YAMAGUCHI
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Patent number: 8894185Abstract: A liquid ejection head is disclosed that includes piezoelectric elements constituting driving element rows in which plural driving piezoelectric element columns that generate energy for ejecting liquid droplets from nozzles are arranged side by side; a wiring board arranged on the side opposite to a surface in which the nozzles are formed; and two sheets of flexible printed circuits that are provided to correspond to the piezoelectric elements and have output terminal parts connected to the plural driving piezoelectric element columns and input terminal parts connected to the wiring board, the input terminal parts being drawn to the side of the wiring board. The flexible printed circuits are arranged facing each other with their input terminal parts not facing each other, and the input terminal parts of the flexible printed circuits are folded in a direction where the flexible printed circuits face each other and are connected to the wiring board.Type: GrantFiled: September 26, 2008Date of Patent: November 25, 2014Assignee: Ricoh Company, Ltd.Inventors: Kunihiro Yamanaka, Kiyoshi Yamaguchi
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Patent number: 8882230Abstract: A liquid droplet ejecting head is disclosed, including a nozzle hole which ejects liquid droplets; an ejecting liquid chamber which is in communication with outside via the nozzle hole and which contains an ejecting liquid to be the liquid droplets; a pressure generating unit which generates pressure within the ejecting liquid chamber; a temperature detecting unit which detects temperature at a location at which is arranged a temperature measuring resistive body; and a pressure control unit which controls an output of the pressure generating unit based on detected results of the temperature detecting unit, wherein the pressure generating unit is configured to increase pressure within the ejecting liquid chamber, so that the ejecting liquid within the ejecting liquid chamber is ejected from the nozzle hole as the liquid droplets, and wherein the temperature measuring resistive body is arranged at the ejecting liquid chamber forming member.Type: GrantFiled: July 10, 2012Date of Patent: November 11, 2014Assignee: Ricoh Company, Ltd.Inventors: Yusuke Nonoyama, Kiyoshi Yamaguchi
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Patent number: 8878105Abstract: After a preheating operation is performed to raise an inner temperature of a heating chamber to a target preheating temperature (first specified temperature) by a first steam superheater of a steam temperature-raising device, a cooking operation is performed to raise, by the first steam superheater of the temperature-raising device, a temperature of steam obtained by heating of water in a steam generator by heaters 42A, 42B of the steam generator and then supply the steam to the heating chamber. In this process, when inner temperature of the heating chamber detected by an inner temperature sensor 81 during the preheating operation has come to or beyond a steam generation start temperature (second specified temperature) which is lower than a target preheating temperature, a control unit 80 decides that a steam generation start condition has been satisfied, and heats water in the steam generator by the heaters of the steam generator.Type: GrantFiled: July 28, 2005Date of Patent: November 4, 2014Assignee: Sharp Kabushiki KaishaInventors: Kiyoshi Yamaguchi, Yuko Nakajima, Noriko Ohashi, Mari Terada
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Publication number: 20140289706Abstract: A test case is generated by receiving software specification, generating a test case including a test input value for particular software from the software specification, as well as an expected output value expected to be obtained as an output value when the software is executed by inputting the test input value, and checking whether a value that can be output in the software specification is included in the expected output value. As a result of the check, if it is determined that the output value that can be output in the software specification is not included in the expected output value, a test case including the value that can be output in the software specification as well as a corresponding test input value is generated and added to the test case that has been generated.Type: ApplicationFiled: February 3, 2014Publication date: September 25, 2014Applicant: Hitachi, Ltd.Inventors: KUNIHIKO MIYAZAKI, Naoto SATO, Shinji ITOH, Sadahiro ISHIKAWA, Kiyoshi YAMAGUCHI, Hiroki MORI
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Patent number: 8802918Abstract: A water-absorbent sheet composition containing a structure in which an absorbent layer containing a water-absorbent resin and an adhesive is sandwiched with two or more sheets of hydrophilic nonwoven fabrics, wherein the water-absorbent sheet composition has a structure in which the absorbent layer is separated in divided parts of a primary absorbent layer and a secondary absorbent layer with a water-permeable substrate having a water permeability index of from 20 to 90, and wherein the water-absorbent resin is contained in the absorbent layer in an amount of from 100 to 1000 g/m2. The water-absorbent sheet composition of the present invention exhibits some excellent effects that the water-absorbent sheet composition is capable of accomplishing thinning and avoidance of gel blocking phenomenon and liquid leakage, while obtaining basic properties as a water-absorbent sheet composition at a high level, even for a water-absorbent sheet composition containing a very small amount of pulps.Type: GrantFiled: June 29, 2009Date of Patent: August 12, 2014Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Shinya Fukudome, Junichi Maruo, Masayoshi Handa, Kiyoshi Yamaguchi
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Patent number: 8777382Abstract: Disclosed is an inkjet head that includes individual liquid chambers having liquid droplet discharging holes; an oscillation plate; piezoelectric elements formed by laminating a lower electrode, a piezoelectric material, and upper electrodes on the oscillation plate, wherein the lower electrode is a common electrode and the upper electrode is an individual electrode; a common electrode wiring connected to the lower electrode; and individual electrode wirings connected to the corresponding upper electrodes of the piezoelectric elements, wherein driving signals are individually input to the corresponding individual electrode wirings. The inkjet head further includes an upper layer insulator film; an intermediate layer insulator film; and a lower layer insulator film. The intermediate layer insulator film and the upper layer insulator film have openings for exposing the piezoelectric elements.Type: GrantFiled: February 3, 2012Date of Patent: July 15, 2014Assignee: Ricoh Company, Ltd.Inventors: Masaki Kato, Kiyoshi Yamaguchi, Takahiko Kuroda, Satoshi Mizukami
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Publication number: 20140122445Abstract: A database analyzer includes a data sorting unit sorting a data group acquired from an analysis target database based on data values in a table column and storing it as analysis target data in a storage unit; a data pattern creation processing unit creating a group for each data value based on differences between the data values and storing a data pattern in the storage unit; a data pattern judgment processing unit for judging validity of the data pattern; and a data pattern transformation processing unit for reconstructing the data pattern with respect to constituent elements of each group included in the data pattern by transforming each group in accordance with a specified conversion rule for converting the constituent elements, which are conceptually similar to each other, into the same constituent element, and storing it in the storage unit if a negative result is obtained for the validity judgment.Type: ApplicationFiled: October 23, 2013Publication date: May 1, 2014Applicant: Hitachi, Ltd.Inventors: Yasunori HASHIMOTO, Ryota MIBE, Kentaro YOSHIMURA, Hirofumi DANNO, Sadahiro ISHIKAWA, Kiyoshi YAMAGUCHI
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Droplet ejection head, method of manufacturing droplet ejection head, and droplet ejection apparatus
Patent number: 8708459Abstract: A droplet ejection head that is attachable to and removable from a droplet ejection apparatus, includes: a nozzle plate having multiple nozzle holes to eject droplets; an individual-channel substrate in which multiple individual-liquid-chambers to supply liquid to the nozzle holes are formed; a common-channel substrate to supply liquid to the individual-channel substrate; a base plate made of metal and including a first positioning part to be engaged with a part of the droplet ejection apparatus at a given position to perform positioning with respect to the droplet ejection apparatus in a direction along an opening surface of the nozzle plate at which the nozzle holes are opened; and a housing made of resin and including a second positioning part to perform positioning with respect to the droplet ejection apparatus in a direction intersecting with the opening surface.Type: GrantFiled: July 20, 2012Date of Patent: April 29, 2014Assignee: Ricoh Company, LimitedInventors: Hideaki Nishimura, Yukitoshi Tajima, Mitsuya Matsubara, Masaki Kato, Kiyoshi Yamaguchi -
Patent number: 8657418Abstract: Disclosed is an inkjet head including a fluid channel substrate on which individual liquid chambers are arranged, the individual liquid chambers being partitioned by liquid chamber partition walls; an oscillation plate that is formed on a surface facing openings of nozzles; actuators; wiring layer patterns that supplies driving signals to the actuators, the wiring layer patterns being formed above the corresponding liquid chamber partition walls; and a supporting substrate in which concave oscillation chambers are formed, the concave oscillation chambers being partitioned by supporting substrate partition walls. A width in the short direction of the supporting substrate partition wall is smaller than a width in the short direction of the liquid chamber partition wall and greater than a width of the wiring layer pattern.Type: GrantFiled: August 29, 2012Date of Patent: February 25, 2014Assignee: Ricoh Company, Ltd.Inventors: Masaki Kato, Kiyoshi Yamaguchi
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Patent number: 8646870Abstract: An inkjet recording apparatus includes a recording head; a carriage to which the recording head is detachably mounted; and a first head protection member that is arranged on the carriage; wherein the recording head is positioned with respect to the carriage in a relative movement direction by moving the recording head relative to the carriage until a first position reference plane of the recording head and a second position reference plane of the carriage come into contact; the first head protection member is arranged at both sides in the relative movement direction of a nozzle face of the recording head and protrudes further than the nozzle face; and the first head protection member is movable with respect to the carriage in the relative movement direction and moves along with the recording head when the recording head moves relative to the carriage.Type: GrantFiled: September 11, 2012Date of Patent: February 11, 2014Assignee: Ricoh Company, Ltd.Inventors: Hideaki Nishimura, Yukitoshi Tajima, Masaki Kato, Kiyoshi Yamaguchi
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Patent number: 8556396Abstract: An inkjet head is disclosed, including a nozzle plate, a passage substrate, and a diaphragm. The nozzle plate forms multiple nozzles for discharging ink. A passage substrate joints to the nozzle plate. On the passage substrate, an individual liquid chamber leading to a nozzle, and a liquid supply chamber connected to the individual liquid chamber through an individual passage are formed for each of the multiple nozzles. The diaphragm forms a piezoelectric element which is laminated on a side opposite to the nozzle plate of the passage substrate and includes a lower electrode, a piezoelectric body, and an upper electrode. The liquid supply chamber formed for each of the multiple nozzles is compartmented by a bulkhead from an other liquid supply chamber, and each of the liquid supply chamber and the other liquid supply chamber include multiple ink supply ports.Type: GrantFiled: June 12, 2012Date of Patent: October 15, 2013Assignee: Ricoh Company, Ltd.Inventors: Masaki Kato, Kiyoshi Yamaguchi, Mitsuru Shingyohuchi
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Patent number: 8491103Abstract: Disclosed is an inkjet head including a channel substrate; a multi-interconnect structure formed on the channel substrate, including a vibration layer, plural piezoelectric elements each including a first electrode, a piezoelectric layer and a second electrode, and a common electrode interconnect electrically connected to the first electrode including a first common electrode interconnect and a second common electrode interconnect which has a thickness thicker than that of the first common electrode interconnect; and a support substrate bonded to the channel substrate through the multi-interconnect structure, the support substrate being provided with a first concave portion at a surface facing the channel substrate at an area corresponding to the second common electrode interconnect to accommodate the second common electrode interconnect.Type: GrantFiled: February 7, 2012Date of Patent: July 23, 2013Assignee: Ricoh Company, Ltd.Inventors: Masaki Kato, Kiyoshi Yamaguchi, Mitsuru Shingyohuchi
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Patent number: 8468569Abstract: A server apparatus includes a memory which stores a management table relating content identification information for specifying the content and a trick play request and a trick play data, and a transmitter which refers to the management table based on the content identification information and the trick play request, reads out the corresponding trick play data from the management table according to the reference result, to transmit the trick play data to the receiving apparatus from the specified reproduction starting position.Type: GrantFiled: March 3, 2008Date of Patent: June 18, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Yoshiro Osaki, Kiyoshi Yamaguchi, Shinichi Kurihara
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Publication number: 20130125091Abstract: A device and method automatically generate a program for buffering differences based on characteristics of a component. A buffer program for buffering differences of the way to use a component during different software environments is automatically generated. The device includes a controller for executing automatic generation of the buffer program, a memory including control information and a processing program, an input device for inputting the processing content of the component, and an output device for outputting the automatically generated buffer program. The memory records a plurality of forms for buffering the component as the control information and the controller extracts characteristic information based on the processing content of the component and records the extracted characteristic information as control information in the memory, selects a specified form based on the characteristic information, and generates the buffer program based on the selected form and the characteristic information.Type: ApplicationFiled: September 7, 2012Publication date: May 16, 2013Applicant: HITACHI, LTD.Inventors: Yasunori Hashimoto, Ryota Mibe, Shuhei Nojiri, Sadahiro Ishikawa, Kiyoshi Yamaguchi, Kentaro Yoshimura
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Patent number: 8414110Abstract: An inkjet head includes a channel substrate having multiple individual liquid chambers arranged in a shorter-side direction of the channel substrate, the individual liquid chambers being separated by multiple liquid chamber partition walls and communicating with ink supply openings; multiple diaphragms defining surfaces of the individual liquid chambers facing toward nozzle openings; multiple actuators formed on the diaphragms, each of the actuators being formed of a lower electrode, a piezoelectric element, and an upper electrode stacked in layers; and multiple individual electrode interconnects led out from the upper electrodes of the actuators, the individual electrode interconnects being connected to the corresponding upper electrodes on the nozzle opening side and on the ink supply opening side of the upper electrodes, the individual electrode interconnects being formed in regions where the liquid chamber partition walls are formed.Type: GrantFiled: September 12, 2011Date of Patent: April 9, 2013Assignee: Ricoh Company, Ltd.Inventors: Masaki Kato, Kiyoshi Yamaguchi
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Publication number: 20130070021Abstract: An inkjet recording apparatus includes a recording head; a carriage to which the recording head is detachably mounted; and a first head protection member that is arranged on the carriage; wherein the recording head is positioned with respect to the carriage in a relative movement direction by moving the recording head relative to the carriage until a first position reference plane of the recording head and a second position reference plane of the carriage come into contact; the first head protection member is arranged at both sides in the relative movement direction of a nozzle face of the recording head and protrudes further than the nozzle face; and the first head protection member is movable with respect to the carriage in the relative movement direction and moves along with the recording head when the recording head moves relative to the carriage.Type: ApplicationFiled: September 11, 2012Publication date: March 21, 2013Inventors: Hideaki Nishimura, Yukitoshi Tajima, Masaki Kato, Kiyoshi Yamaguchi
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Publication number: 20130050354Abstract: Disclosed is an inkjet head including a fluid channel substrate on which individual liquid chambers are arranged, the individual liquid chambers being partitioned by liquid chamber partition walls; an oscillation plate that is formed on a surface facing openings of nozzles; actuators; wiring layer patterns that supplies driving signals to the actuators, the wiring layer patterns being formed above the corresponding liquid chamber partition walls; and a supporting substrate in which concave oscillation chambers are formed, the concave oscillation chambers being partitioned by supporting substrate partition walls. A width in the short direction of the supporting substrate partition wall is smaller than a width in the short direction of the liquid chamber partition wall and greater than a width of the wiring layer pattern.Type: ApplicationFiled: August 29, 2012Publication date: February 28, 2013Applicant: RICOH COMPANY, LTD.Inventors: Masaki Kato, Kiyoshi Yamaguchi