Patents by Inventor Seiji Hamada

Seiji Hamada 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: 20070275681
    Abstract: A resource allocation control unit is provided between the despreading process unit and the channel decoding process unit of a radio base station receiver, and a resource for a channel decoding process is allocated only when there is actually user communication data in a communication service that is not of a continuous data communication under control of the resource allocation control unit. Thereby, the number of resources of the channel decoding process unit is smaller than the number of resources for despreading processes corresponding to the number of users that can receive the services simultaneously.
    Type: Application
    Filed: September 28, 2006
    Publication date: November 29, 2007
    Inventor: Seiji Hamada
  • Publication number: 20070052439
    Abstract: A checking unit includes a power net extracting means for extracting a power net with power attribution, which is segmented by a power-decoupling element, with reference to circuit design data of the printed wiring board; a parts number extracting means for extracting a parts number of an integrated circuit which is connected to the extracted power net; a parts headcount calculating means for calculating a headcount of the extracted parts; a judging means for comparing the extracted parts headcount with a predetermined reference value; and a representing means for representing a name of the power net and the parts number of the integrated circuit as an unprocessed location of power decoupling when the headcount is larger than the reference value, whereby inspecting quickly whether or not a power supply in use, which is shared by each of the integrated circuits, is decoupled at higher frequencies by the power-decoupling element.
    Type: Application
    Filed: February 14, 2005
    Publication date: March 8, 2007
    Inventors: Seiji Hamada, Hirotsugu Fusayasu, Shoichi Mimura, Miyoko Irikiin
  • Publication number: 20070044062
    Abstract: A CAD apparatus for designing patterns of a printed board, includes: a signal wiring pattern detecting unit 22 for detecting a signal wiring pattern with reference to wiring information of the printed board; a guard ground detecting unit 23 for tracing the signal wiring pattern along the longitudinal direction thereof, to detect whether or not a guard ground exists within a distance from the signal wiring pattern to a predetermined first discriminant value GL, and for identifying a non-guard ground section in which no guard ground exists within the distance to the first discriminant value GL, and for detecting whether or not a guard ground exists within another distance from the signal wiring pattern to a second discriminant value GU, which is larger than the first discriminant value GL, in the non-guard ground section; and a return path judging unit 25 for judging an error of guard ground when no guard ground exists within the distance to the second discriminant value GU in the non-guard ground section, ther
    Type: Application
    Filed: February 3, 2005
    Publication date: February 22, 2007
    Inventors: Hirotsugu Fusayasu, Seiji Hamada, Shoichi Mimura, Miyoko Irikiin
  • Publication number: 20060288317
    Abstract: An element placement check system for checking element placement on a printed wiring board having wiring by which a power supply terminal of an integrated circuit and a power supply decoupling element for the power supply terminal are connected on a mounting surface on which the integrated circuit is mounted, wherein the wiring is connected to a power supply plane for providing a direct current power supply to the power supply terminal through a power supply via hole, including: element distance detecting means detecting a first wire length between the power supply decoupling element and the power supply terminal; power supply via hole distance detecting means detecting a second wire length between the power supply via hole and the power supply terminal; and determination means determining a positional relationship of the power supply decoupling element and the power supply via hole to the power supply terminal based on the first and second wire lengths, thereby providing a check system and a printed wiring b
    Type: Application
    Filed: February 14, 2005
    Publication date: December 21, 2006
    Inventors: Seiji Hamada, Hirotsugu Fusayasu, Shoichi Mimura, Miyoko Irikiin
  • Publication number: 20060242615
    Abstract: A printed wiring board design method including the steps of designing placement and wiring for circuit components based on circuit information on a mounting surface of the board; excluding a placement region and a wiring region for the circuit components from the mounting surface to thereby calculate a placement and wiring enable region for an EMC component in which the EMC component can be placed and wiring can be laid down; and calculating the placement and wiring range for the EMC component based on an EMC design rule from the calculated placement and wiring enable region for the EMC component, thereby providing a printed wiring board design method in which a placement of and wiring for a new bypass capacitor or the like can be implemented and a region satisfying restraint items from the design rule can be clearly displayed as a new input enable region on a CAD screen.
    Type: Application
    Filed: February 3, 2005
    Publication date: October 26, 2006
    Inventors: Shoichi Mimura, Hirotsugu Fusayasu, Miyoko Irikiin, Seiji Hamada
  • Publication number: 20060193253
    Abstract: To improve accuracy for verifying reception in the data transmission utilizing the common channel. A radio communication apparatus for transmitting the data to the transmitting destination apparatus selected from a plurality of transmitting destination apparatuses using the shared channel, comprises a control unit for controlling data transmission and a path search unit for identifying the transmitting destination apparatus as the object of the path search in accordance with control of data transmission.
    Type: Application
    Filed: July 8, 2005
    Publication date: August 31, 2006
    Inventor: Seiji Hamada
  • Publication number: 20060125571
    Abstract: A radiation noise suppression circuit for a differential transmission line includes a differential transmission line which has plus line signal wiring to which a plus line signal of a differential signal is applied, and minus line signal wiring to which a minus line signal of the differential signal is applied, and connects a differential driver and a differential receiver, plus line signal GND wiring and minus line signal GND wiring which are connected between the differential driver and the differential receiver, and are wired along the differential transmission line, and a coil unit in which each of the plus line signal wiring, minus line signal wiring, plus line signal GND wiring, and minus line signal GND wiring is wound in the same winding direction, wherein a distance between the plus line signal wiring and the plus line signal GND wiring is substantially equal to a distance between the minus line signal wiring and the minus line signal GND wiring.
    Type: Application
    Filed: December 8, 2005
    Publication date: June 15, 2006
    Inventors: Seiji Hamada, Hirotsugu Fusayasu, Shinichi Tanimoto, Ryo Matsubara
  • Publication number: 20060125570
    Abstract: A radiation noise suppression circuit for a differential transmission line includes a differential transmission line which has plus line signal wiring of a differential signal and minus line signal wiring of the differential signal, and connects a differential driver and a differential receiver; signal GND wiring one end of which is connected to the differential driver, and is wired outside along the differential transmission line; a coil unit in which each of the plus line signal wiring, the minus line signal wiring, and said signal GND wiring is wound in the same winding direction; a first impedance element and a second impedance element which have substantially the same impedance value, and which are connected in series between the plus line signal wiring and the minus line signal wiring at a location nearer to the differential receiver than the coil unit; and, a third impedance element one end of which is connected to a junction point, where the first impedance element and the second impedance element are
    Type: Application
    Filed: December 8, 2005
    Publication date: June 15, 2006
    Inventors: Seiji Hamada, Hirotsugu Fusayasu, Shinichi Tanimoto, Ryo Matsubara
  • Publication number: 20060119449
    Abstract: To provide a common mode radiation inhibit circuit for a differential transmission line which can inhibit quadratic common mode radiation by ensuring a continuity of grand level at a point of change of a signal grand, including a differential transmission line which is constituted of a pair of signal wiring, and transmits differential signals, signal grounds which are arranged along the differential transmission line, and each have a change point on its way, a transformer, and a reference ground, wherein a primary side of the transformer is connected between an electric midpoint of the pair of signal wiring, and the signal ground at one side of the front and back of the change point of the signal grounds, wherein the secondary side of the transformer is connected between the electric midpoint of the pair of signal wiring and the signal ground at another side of the front and back of the change point, and wherein the reference ground is connected to a point which becomes a neutral sheet of the primary side of
    Type: Application
    Filed: December 5, 2005
    Publication date: June 8, 2006
    Inventors: Hirotsugu Fusayasu, Shin-ichi Tanimoto, Seiji Hamada, Ryo Matsubara
  • Patent number: 7030889
    Abstract: According to the data display method of the present invention, one or more parts of the data to be displayed in a display area are displayed in full, while the other parts of the data are displayed in predetermined abridged forms representing the parts of data that are not displayed (i.e. abridged data). When the predetermined abridged form representing the abridged data is selected, one or more parts of the data contents are fully displayed and the other parts are abridged. Further, when the data displayed in full is selected, an input operation for the data is initiated. In addition, the contents of the abridged data that are not displayed are not read from a database, and the first data row and the number of data rows in the abridged data group, are stored.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: April 18, 2006
    Assignee: International Business Machines Corporation
    Inventors: Seiji Hamada, Isao Kadowaki
  • Publication number: 20050093506
    Abstract: A management information display unit that is able to form management information for managing the power supply state of fuel cells and displays the management information while allowing the management information to be identified as to which electronic device of the electronic devices pertains to the management information on basis of identification information inputted from a plurality of electronic devices that are able to output the formed management information in correlation with the identification information of the fuel cell, and information transmitting part for transmitting the identification information and the management information while allowing the information to be inputted to the management information display unit are provided.
    Type: Application
    Filed: September 2, 2004
    Publication date: May 5, 2005
    Inventors: Seiji Hamada, Hirotsugu Fusayasu, Hiroto Inoue, Shoichi Mimura, Miyoko Irikiin
  • Publication number: 20030226151
    Abstract: Method, system, and program product for providing a content distribution method that enables the capability of controlling a content reproduction. Specifically, by distributing active metadata for controlling content reproduction, a user receiver can reproduce the content with a plurality of contents combined using descriptors included in the active metadata, skip the content partially, or restrict viewing of the content. The active metadata is updatable and the updating of the active metadata can be individually generated for each user on the basis of user information retained in the service provider server, thereby providing a good command of controlling the content for each user.
    Type: Application
    Filed: May 23, 2003
    Publication date: December 4, 2003
    Applicant: International Business Machines Corporation
    Inventors: Seiji Hamada, Takashi Ogura, Akimitsu Shiseki
  • Publication number: 20020181488
    Abstract: A CDMA receiver for detecting paths of a direct incoming wave and a delayed incoming wave corresponding to the same channel from a receiving signal and combining the detected signals of a plurality of paths. A searcher unit operating in a first mode in a first search time range and in a second mode in a second search time range, which is narrower than the first search time range, and detecting the paths of the direct incoming wave and the delayed incoming wave in the first mode or in the second mode. A finger unit for inversely diffusing the signals of the paths detected with the searcher unit, combining a plurality of signals inversely diffused and detecting whether synchronization of the combined signal is set up or not. The searcher unit operates in the first mode at the start of channel signal reception and in the second mode after switching from the first mode while synchronization of the combined signal is detected.
    Type: Application
    Filed: January 3, 2002
    Publication date: December 5, 2002
    Inventors: Yuuki Okazaki, Satoshi Kobori, Masahiko Hikita, Masatsugu Takeuchi, Seiji Hamada
  • Patent number: 6463480
    Abstract: The present invention is directed to an environment in which a safe program having high thread isolation can easily be constructed, and the effective utilization of resources can be achieved when concurrently processing a plurality of client requests. More specifically, a client request 101 is transformed into a common format, and stored in a queue 125 in the form of packet information. A control unit 127 reads the packet information, and instructs a thread control unit 131 to create a thread. A thread object 141 referenced only from the created thread is created by copying a thread object template 149 prestored in the system. Client requests are divided into three types: creation of an object, utilization of an object method, and deletion of an object, and a thread is created only during the execution of a client request.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: October 8, 2002
    Assignee: International Business Machines Corporation
    Inventors: Michio Kikuchi, Yuichi Nakamura, Seiji Hamada
  • Publication number: 20020057272
    Abstract: According to the data display method of the present invention, one or more parts of the data to be displayed in a display area are displayed in full, while the other parts of the data are displayed in predetermined abridged forms representing the parts of data that are not displayed (i.e. abridged data). When the predetermined abridged form representing the abridged data is selected, one or more parts of the data contents are fully displayed and the other parts are abridged. Further, when the data displayed in full is selected, an input operation for the data is initiated. In addition, the contents of the abridged data that are not displayed are not read from a database, and the first data row and the number of data rows in the abridged data group, are stored.
    Type: Application
    Filed: November 5, 2001
    Publication date: May 16, 2002
    Applicant: International Business Machines Corporation
    Inventors: Seiji Hamada, Isao Kadowaki
  • Patent number: 6353452
    Abstract: In order to make sure that a user does not attempt to build an invalid database query in which tables are incorrectly joined on fields that cannot be joined due to an incompatibility of data types, after the user selects a source data field the incompatible target data fields which cannot be joined with the selected source data field are determined automatically and displayed distinctly differently in a target list box of possible target data field names, such as in a different color.
    Type: Grant
    Filed: October 20, 1998
    Date of Patent: March 5, 2002
    Assignee: International Business Machines Corporation
    Inventors: Seiji Hamada, Robert Logie, Takashi Ogura
  • Publication number: 20010056457
    Abstract: The present invention is directed to an environment in which a safe program having high thread isolation can easily be constructed, and the effective utilization of resources can be achieved when concurrently processing a plurality of client requests. More specifically, a client request 101 is transformed into a common format, and stored in a queue 125 in the form of packet information. A control unit 127 reads the packet information, and instructs a thread control unit 131 to create a thread. A thread object 141 referenced only from the created thread is created by copying a thread object template 149 prestored in the system. Client requests are divided into three types: creation of an object, utilization of an object method, and deletion of an object, and a thread is created only during the execution of a client request.
    Type: Application
    Filed: March 10, 1997
    Publication date: December 27, 2001
    Inventors: MICHIO KIKUCHI, YUICHI NAKAMURA, SEIJI HAMADA
  • Patent number: 6240549
    Abstract: Through an operation of a debugger 57, a process with respect to certain assumed collaboration is carried out for each module such that breakpoints may be set up at appropriate locations in a program. Executing the program, call relations up to a setup time of a breakpoint are stacked on a call stack. Using the debugger 57, these call relations are stored into a collaboration repository 51. A builder 52 is a means for controlling an overall development environment. This builder 52 may call a debugger 57 or another function 53 for displaying program information that comprises a collaboration matrix 54, a call graph 55, a class browser 56 and the like.
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: May 29, 2001
    Assignee: International Business Machines Corporation
    Inventors: Seiji Hamada, Yuichi Nakamura, Masahiro Ohkawa, Michio Kikuchi
  • Patent number: 6182278
    Abstract: The present invention is directed to making a variety of programming operations, which a programmer desires, possible by using a program component. More specifically, an apparent function of program component 131 is extended by component-information editor 101 which updates the information of component-information storage 110 that holds the information about the property and method of the program component. The component information is utilized both when an application program is developed and when the application program is executed. When a program is developed, the component information is utilized by property editor 103 and code editor 107. Therefore, users can utilize the component information for generating a programming code with a feeling as if the function of the program component were extended. Furthermore, there is no possibility that the user will be conscious of the difference between the existent function and the extended function of the program component.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: January 30, 2001
    Assignee: International Business Machines Corporation
    Inventors: Seiji Hamada, Yuichi Nakamura, Kazuya Tago
  • Patent number: 4911044
    Abstract: First and second metal portions are tightened integrally on both surfaces of one or plural sheets of electrostrictive element bodies polarized in the thickness direction and divided in two uniform halves using a tightening tool, thereby a flexible vibrator is provided, and a cutting tool is installed to an output end portion of the flexible vibrator and a work is cut by ultrasonic vibration generated in the flexible vibrator. Workability of the cutting working is improved and the structure is simplified, and the device as a whole is made compact.
    Type: Grant
    Filed: February 4, 1988
    Date of Patent: March 27, 1990
    Assignee: Taga Electric Co., Ltd.
    Inventors: Shoji Mishiro, Seiji Hamada