Patents by Inventor Hiroshi Otsuka

Hiroshi Otsuka 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).

  • Publication number: 20130113561
    Abstract: An output mode switching amplifier, including: a transistor for signal amplification connected between a first node on an input side and a second node on an output side; a bypass path for bypassing the transistor between the first node and the second node; a voltage control circuit for switching whether to apply a bias voltage to the transistor so that a transmission signal is amplified by the transistor or to output a transmission signal via the bypass path without amplifying the transmission signal by the transistor; and a second-harmonic reflection circuit connected to the bypass path, for reflecting a second harmonic of the transmission signal.
    Type: Application
    Filed: October 21, 2010
    Publication date: May 9, 2013
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kenichi Horiguchi, Naoko Matsunaga, Hiroshi Otsuka, Masatoshi Nakayama, Kazuhiro Iyomasa, Akira Inoue
  • Patent number: 8438179
    Abstract: A computer-readable portable storage medium storing a trouble handling program for causing a computer to execute a process for knowledgizing past trouble handling cases in information systems, and for recommending handling methods based on trouble handling knowledge obtained by knowledgizing and symptoms of troubles when they occur, including a searching process for obtaining candidates of handling methods for troubles requested to be handled by searching the trouble handling knowledge; a recording process for recording to a storing unit a history of handling methods executed for each symptom as handling history information; a priority assigning process for assigning priorities to the handling method candidates obtained by the searching process, with reference to the handling history information; and a process for returning to a handling request source the handling methods for the troubles requested to be handled after assigning priorities based on priority assignment information obtained by the priority assi
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: May 7, 2013
    Assignee: Fujitsu Limited
    Inventors: Yuji Wada, Yasuhide Matsumoto, Yukihiro Watanabe, Kuniaki Shimada, Masazumi Matsubara, Kenji Morimoto, Hiroshi Otsuka, Akira Katsuno
  • Publication number: 20130020584
    Abstract: In the present invention, provided is a semiconductor device, including: a GaN channel layer which is provided on a substrate and through which electrons run; a barrier layer which is provided on the GaN channel layer and which contains at least one of In, Al, and Ga and contains N; a gate electrode which is provided on the barrier layer; and a source electrode and a drain electrode which are provided on the substrate across the gate electrode, in which, in a portion of the barrier layer between the gate electrode and the drain electrode, a magnitude of polarization of the barrier layer is smaller on the gate electrode side than on the drain electrode side. Thus, PAE can be improved by reducing Rd and Cgd simultaneously.
    Type: Application
    Filed: April 22, 2010
    Publication date: January 24, 2013
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Toshiyuki Oishi, Hiroshi Otsuka, Koji Yamanaka, Akira Inoue
  • Publication number: 20120317072
    Abstract: A computer-readable, non-transitory medium stores the system analysis program which can accurately analyze the operational status of a system without modifying functions of the system for providing services. A message analysis unit analyzes the contents of collected messages, and determines the times of occurrence of the messages, the process types requested by the messages, and whether or not each of the messages is a request message or a response message. In response to an instruction for model generation, a model generation unit generates a transaction model satisfying at least one limiting condition related to caller-called relationships between processes, based on a set of messages selected in accordance with a selection criterion based on the certainty of existence of caller-called relationships. Then, in response to an instruction for analysis, an analysis unit analyzes the processing status of a transaction based on a protocol log conforming to the transaction model.
    Type: Application
    Filed: August 10, 2012
    Publication date: December 13, 2012
    Applicant: FUJITSU LIMITED
    Inventors: Lilian Harada, Nobuhiro Yugami, Kenichi Kobayashi, Hiroshi Otsuka, Ken Yokoyama, Riichiro Take, Kazumi Kubota, Yuuji Hotta, Naoki Akaboshi
  • Patent number: 8266097
    Abstract: A computer-readable, non-transitory medium stores the system analysis program which can accurately analyze the operational status of a system without modifying functions of the system for providing services. A message analysis unit analyzes the contents of collected messages, and determines the times of occurrence of the messages, the process types requested by the messages, and whether or not each of the messages is a request message or a response message. In response to an instruction for model generation, a model generation unit generates a transaction model satisfying at least one limiting condition related to caller-called relationships between processes, based on a set of messages selected in accordance with a selection criterion based on the certainty of existence of caller-called relationships. Then, in response to an instruction for analysis, an analysis unit analyzes the processing status of a transaction based on a protocol log conforming to the transaction model.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: September 11, 2012
    Assignee: Fujitsu Limited
    Inventors: Lilian Harada, Nobuhiro Yugami, Kenichi Kobayashi, Hiroshi Otsuka, Ken Yokoyama, Riichiro Take, Kazumi Kubota, Yuuji Hotta, Naoki Akaboshi
  • Patent number: 8251129
    Abstract: In an operation of continuous casting of steel grade such as aluminum-killed steel where a nozzle clogging phenomenon is particularly likely to occur, it is intended to prevent adhesion of inclusions (typically, Al2O3) on a nozzle used in the casting operation, and clogging of the nozzle due to the inclusions. A refractory material 10 is arranged to define a part or an entirety of a molten steel-contacting surface of a continuous casting nozzle, wherein the refractory material 10 contains: a CaO component in an amount of 0.5 mass % or more; one or both of B2O3 and R2O (R is one selected from the group consisting of Na, K and Li) in an amount of 0.5 mass % or more; Al2O3 in an amount of 50 mass % or more; and free carbon in an amount of 8.0 to 34.5 mass %, and wherein a total amount of CaO, B2O3 and R2O is in the range of 1.0 to 15.0 mass %, and a mass ratio of CaO/(B2O3+R2O) is in the range of 0.1 to 3.0.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: August 28, 2012
    Assignee: Krosakiharima Corporation
    Inventors: Katsumi Morikawa, Akinari Sasaki, Hiroshi Otsuka, Yuichi Tsukaguchi
  • Patent number: 8247844
    Abstract: An isolation layer for suppressing a leakage current is provided at least between a channel layer and a buffer layer formed under the channel layer in the buffer layer.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: August 21, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Toshiyuki Oishi, Yoshitsugu Yamamoto, Hiroshi Otsuka, Koji Yamanaka, Akira Inoue
  • Patent number: 8209440
    Abstract: A device-configuration-information integrated management system includes a device-configuration-information managing unit that manages device configuration information containing configuration items of a target device for management and contains relationships between the configuration items; and a device-configuration-information integrated managing unit for integratedly managing the device configuration information obtained from a plurality of the device-configuration-information managing units. The system also includes a device-configuration-information optimum arrangement processing unit that performs optimum management by aggregating device configuration information that contains related configuration items, from among the device configuration information managed by a plurality of the device-configuration-information managing units, in a single device-configuration-information managing unit from among a plurality of the device-configuration-information managing units.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: June 26, 2012
    Assignee: Fujitsu Limited
    Inventors: Yuji Wada, Yasuhide Matsumoto, Masazumi Matsubara, Kenji Morimoto, Hiroshi Otsuka
  • Publication number: 20120158701
    Abstract: A computer-readable medium storing therein a data conversion program that causes a computer to execute a process that includes receiving after a schema of a database has been changed from a former schema to a new schema, a processing request concerning the database; judging based on difference information concerning the former schema and the new schema, whether in the processing request, a condition that specifies process data subject to processing, has been changed by the new schema; searching the database for conversion data whose format is to be converted from the former schema to the new schema, the searching based on judgment results obtained at the judging and on the processing request; and converting the format of the retrieved conversion data, from the former schema to the new schema.
    Type: Application
    Filed: October 18, 2011
    Publication date: June 21, 2012
    Applicant: FUJITSU LIMITED
    Inventors: Hiroshi OTSUKA, Atsuji SEKIGUCHI, Masazumi MATSUBARA, Shinya KITAJIMA, Yuji WADA, Yasuhide MATSUMOTO
  • Patent number: 8205041
    Abstract: A virtual tape apparatus is interposed between a host and a tape device so as to store data transmitted from the host to a logical tape volume. The virtual tape apparatus includes: a data communication unit that receives data transmitted from the host; a RAID device having a logical tape volume for storing the data; a management table that manages attribute information of data stored in the physical tape volume; a position determination section that determines the write starting position of the data stored in the logical tape volume on the physical tape volume based on the management table; and a drive control unit that writes data in the logical tape volume to the physical tape volume based on a result of the determination.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: June 19, 2012
    Assignee: Fujitsu Limited
    Inventor: Hiroshi Otsuka
  • Publication number: 20120112537
    Abstract: A vehicle drive unit includes a motor as a power source, a power control unit supported by a vehicle body, and a three-phase cable that connects the power control unit and the motor. A first end portion of the three-phase cable is connected to the power control unit toward the rear of the vehicle in a direction orthogonal to a rotary axis of the motor, a second end portion of the three-phase cable is connected to the motor toward the front of the vehicle in the orthogonal direction, and a U-shaped swing absorber that is curved to extend in the orthogonal direction is provided between the first end portion and the second end portion of the three-phase cable.
    Type: Application
    Filed: November 3, 2011
    Publication date: May 10, 2012
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Tomohiro Fukazu, Hiroshi Otsuka, Masahiro Shimada, Jun Masuda, Masaki Ogami
  • Publication number: 20120090014
    Abstract: An access control apparatus that controls access to an information management apparatus that stores configuration elements and relationship elements indicating relationships between the configuration elements, includes a storage unit that stores one or more predetermined configuration elements in association with user information that identifies a user and stores one or more combinations of a type of a configuration element and a type of a relationship element in association with the user information, as an access control rule set for each user, and a determining unit that determines that, when a combination of a type of a configuration element stored in the storage unit in association with user information and a type of a relationship element indicating a relationship between the configuration element and another configuration element is stored in the storage unit in association with the user information, the another configuration element is accessible.
    Type: Application
    Filed: September 14, 2011
    Publication date: April 12, 2012
    Applicant: FUJITSU LIMITED
    Inventors: Hiroshi OTSUKA, Yasuhide Matsumoto, Yuji Wada, Masazumi Matsubara, Yukihiro Watanabe, Kuniaki Shimada, Kenji Morimoto
  • Publication number: 20120084236
    Abstract: A constraint condition DB storing a constraint condition that stipulates a structure of a decision tree is referenced, and a decision tree is generated from a case set where values of a plurality of attributes and a conclusion are associated with one another so that the structure of the decision tree, which is stipulated by the constraint condition, is satisfied. Accordingly, for example, even if a new case is added to the case set, a basic structure of the decision tree is succeeded by the constraint condition, thereby avoiding a situation where an operator needs to significantly modify the decision tree. Therefore, operations of modifying the decision tree by the operator can be reduced.
    Type: Application
    Filed: September 23, 2011
    Publication date: April 5, 2012
    Applicant: FUJITSU LIMITED
    Inventors: Kuniaki Shimada, Yasuhide Matsumoto, Yukihiro Watanabe, Yuji Wada, Masazumi Matsubara, Kenji Morimoto, Hiroshi Otsuka
  • Patent number: 8139291
    Abstract: An actuator for moving an imaging lens to prevent blurring of an image includes a fixed portion; a movable portion attached to the imaging lens; a plurality of spherical bodies sandwiched between the movable portion and the fixed portion, supporting the movable portion; a drive means; fixed portion drop prevention walls and movable portion drop prevention walls, erected so as to respectively surround each of the spherical bodies and prevent the spherical bodies from dropping; fixed portion contact walls and moving portion contact walls formed contiguously with these drop prevention walls such that when the movable portion is moved to a predetermined locking position, the spherical bodies contact it; and a controller for moving the movable portion to a locking position by rotating the movable portion around the optical axis, thereby positioning each of the spherical bodies.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: March 20, 2012
    Assignee: Tamron Co., Ltd.
    Inventors: Kenichi Nakamura, Hiroshi Otsuka
  • Patent number: 8129836
    Abstract: A semiconductor device is composed of a pair of semiconductor chips (402, 404) arranged parallel on the same flat plane; a high voltage bus bar (21) bonded on the surface on the collector side of one semiconductor chip (402); a low voltage bus bar (23) connected to the surface on the emitter side of the other semiconductor chip (404) with a bonding wire (27); a first metal wiring board (24-1) connected to the surface on the emitter side of the semiconductor chip (402) with a bonding wire (26); a second metal wiring board (24-2) bonded on the surface on the collector side of the semiconductor chip (404); a third metal wiring board (24-3) connected to the first metal wiring board (24-1); a fourth metal wiring board (24-4) connected by being bent from an end portion of the second metal wiring board (24-2); and an output bus bar (24) having output terminals (405) extending from each end portion of the third metal wiring board (24-3) and that of the fourth metal wiring board (24-4).
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: March 6, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Fumitomo Takano, Shinya Watanabe, Tsukasa Aiba, Hiroshi Otsuka, Joji Nakashima
  • Patent number: 8118584
    Abstract: A carrier tape forming apparatus includes a tape paying-out unit for paying out a tape to be worked, a tape feeding unit for feeding the tape, a forming unit for effecting embossing on the tape, a perforating unit for perforating at least a feeding hole in the tape, and a tape taking-up unit for taking up the finished (embossed) tape thereabout. The apparatus includes also double-acting driving units provided as driving sources at least for the tape feeding unit, the forming unit and the tape taking-up unit, each driving unit being fluid-operated and movable along a straight path and a controller for independently controlling driving/stopping of the double-acting driving units for the forming unit and the tape taking-up unit in association with driving/stopping of said double-acting driving unit for the feeding unit.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: February 21, 2012
    Assignee: Sumitomo Bakelite Company Limited
    Inventors: Noriaki Yukawa, Hiroshi Otsuka
  • Patent number: 8113391
    Abstract: An immersion nozzle for continuous casting including a tubular body, the tubular body having at the upper end an inlet from which molten steel is introduced into a passage extending from the inlet downward inside the tubular body, the tubular body having a bottom and being depressed in cross section at least at a lower section, the lower section having two narrow sidewalls and two broad sidewalls, the narrow sidewalls having a pair of opposing first outlets communicating with the passage, the bottom having a pair of second outlets communicating with the passage. The lower section has ridges projecting into the passage respectively from the inner surfaces of the broad sidewalls between the pair of first outlets. The second outlets are arranged symmetrically about the axis of the tubular body such that the axes of the second outlets cross each other within the passage.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: February 14, 2012
    Assignee: Krosaki Harima Corporation
    Inventors: Hiroshi Otsuka, Arito Mizobe, Hisatake Okumura, Masahide Yoshida, Koji Kido, Joji Kurisu
  • Patent number: 8099626
    Abstract: A recovery method management method includes executing and completing a work on a work target of a system according to a work start command and a work completion command, creating working method information for each work target, acquiring before-work-start system information and after-work-completion system information of the system to create before-and-after-work change information for each work target, storing and managing the working method information and the before-and-after-work change information in a work information managing and storing unit for each work target, creating recovery method information for each similar recovery work target among the work targets on the basis of the working method information, creating before-and-after-recovery change information for each recovery work target on the basis of the before-and-after-work change information, and storing and managing the recovery method information created and the before-and-after-recovery change information created in a recovery method managi
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: January 17, 2012
    Assignee: Fujitsu Limited
    Inventors: Masazumi Matsubara, Yasuhide Matsumoto, Yukihiro Watanabe, Kuniaki Shimada, Yuji Wada, Kenji Morimoto, Hiroshi Otsuka, Akira Katsuno
  • Publication number: 20120011172
    Abstract: An object is to integrate pieces of information related to mutually the same target, though the pieces of information do not contain, in common, an attribute unique to one target. To achieve the object, from a generated condition storage unit storing generated integration conditions each specifying one or more attributes contained, in duplicate, in pieces of information related to mutually the same target, one of the generated integration conditions specifying one or more attributes being the same as one or more attributes contained in integration target information is obtained as a generated integration condition corresponding to the integration target information. A CI 200b containing the attributes specified by the obtained generated integration condition and in which the values of the attributes specified are identical to the values of the attributes contained is determined as a CI related to the same target as the integration target information is related to.
    Type: Application
    Filed: September 19, 2011
    Publication date: January 12, 2012
    Applicant: FUJITSU LIMITED
    Inventors: Yuji WADA, Yasuhide MATSUMOTO, Masazumi MATSUBARA, Hiroshi OTSUKA
  • Publication number: 20110314050
    Abstract: A configuration management system includes a plurality of MDRs that stores information about resources as configuration items, a FCMDB, a plurality of proxy apparatuses, and a proxy management apparatus, wherein the proxy management apparatus receives configuration items from the MDRs, reconciles the receives configuration items, selects a destination proxy apparatus such that the numbers of configuration items stored in the proxy apparatuses are substantially equal to each other, and sends the reconciled configuration items to the selected proxy apparatus, wherein the proxy apparatuses store configuration items sent from the proxy management apparatus, and wherein the FCMDB receives a query from a client, selects among the plurality of proxy apparatuses a proxy apparatus that stores a configuration item that is to serve as a query result, and receives the configuration item from the selected proxy apparatus.
    Type: Application
    Filed: June 22, 2011
    Publication date: December 22, 2011
    Applicant: FUJITSU LIMITED
    Inventors: Masazumi Matsubara, Yasuhide Matsumoto, Yukihiro Watanabe, Kuniaki Shimada, Yuji Wada, Kenji Morimoto, Hiroshi Otsuka