Patents by Inventor Takaaki Sato

Takaaki Sato 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).

  • Patent number: 6939679
    Abstract: Agents for use in screening of medicaments for treatment, prevention and/or diagnosis of apoptosis associated diseases are provided which comprise an apoptosis related protein binding to NADE (p76NTR-associated cell death executor) or a DNA encoding said protein.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: September 6, 2005
    Assignee: Riken
    Inventors: Takaaki Sato, Shinji Irie
  • Patent number: 6935072
    Abstract: A weather strip includes a trim body having a generally U-shaped cross section, a hollow seal portion that protrudes from an outside surface of the trim body, and a holding lip formed on the trim body so as to extend from an inside surface of the trim body toward the inside of the trim body. The weather strip is mounted on the vehicle body such that the trim body is held by a flange provided at a periphery of a door opening of a motor vehicle. The weather strip is formed by extrusion molding such that the length of the holding lip is changed in a stepped manner in accordance with the thickness of the flange.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: August 30, 2005
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Harumi Kogiso, Kiminori Mine, Masaki Ohashi, Takaaki Sato, Tomofumi Nishikawa, Masahiro Nozaki, Toshihiro Nahara
  • Patent number: 6925306
    Abstract: The base station comprises a number of reach times judging section which judges whether or not the number of times that the average radio resource usage volume for a prescribed time period has reached a change threshold value during a prescribed time period lies outside a reference number of times range; an allocation threshold value increasing and decreasing section which increases the allocation threshold value with respect to the radio resource usage volume at the time of a communications request from a mobile station, if the number of reach times is less than the minimum number of times of the reference number of times range, and reduces the allocation threshold value, if the number of reach times is greater than the maximum number of times of the reference number of times range; a usage volume at time of request judging section for judging whether or not the radio resource usage volume at the time of a communications request is less than an allocation threshold value; and a radio resource allocating sect
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: August 2, 2005
    Assignee: NTT DoCoMo, Inc.
    Inventors: Kazunori Obata, Takaaki Sato
  • Patent number: 6911526
    Abstract: This invention provides for a composition capable of inhibiting specific binding between a signal-transducing protein and a cytoplasmic protein. This invention also provides a method of identifying a compound capable of inhibiting specific binding between a signal-transducing protein and a cytoplasmic protein. This invention also provides a method of inhibiting the proliferation of cancer cells. This invention also provides a method of treating cancer with a composition in an amount effective to result in an amount in apoptosis of the cells. This invention also provides a method of inhibiting the proliferation of virally infected cells. This invention also provides for a method of treating a virally-infected subject with a composition in an amount effective to result in apoptosis of the cells. This invention also provides for pharmaceutical compositions.
    Type: Grant
    Filed: July 22, 1996
    Date of Patent: June 28, 2005
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Takaaki Sato, Junn Yanagisawa
  • Patent number: 6907250
    Abstract: A mobile communication system includes a plurality of base stations and a mobile station communicating with the base station through a wireless channel. The system comprises a part which measures an amount of information transferred between the base station and the mobile station and a comparator which compares the measured amount of information with first and second threshold values corresponding to a currently used wireless channel. A wireless channel changeover part changes the current wireless channel to a wireless channel with a transmission capability higher or lower than that of the current wireless channel when the measured amount of information is above the first threshold value or below the second threshold value, respectively.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: June 14, 2005
    Assignee: NTT DoCoMo, Inc.
    Inventors: Yoshihiro Ishikawa, Seizo Onoe, Kazunori Obata, Takaaki Sato
  • Publication number: 20050043061
    Abstract: The object of the invention is to allow two systems residing in the same area and same frequency band to be coexistent compatibly with each other while reducing the mutual interference. A radio network controller 20 for controlling the broadcast timing when various kinds of broadcast information is broadcast with respect to each of two systems, which reside in the same frequency band of the same area and have common specification for physical layer in a state where all or a part of upper layer protocols have no compatibility, broadcasts various kinds of broadcast information about system 1 at a predetermined timing. With respect to various kinds of broadcast information about system 2, broadcast timing information, which is scheduled to be staggered from the broadcast timing of the system 1, is notified using a part of region of the broadcast information, and the broadcast information of the system 2 is broadcast at the notified broadcast timing.
    Type: Application
    Filed: May 21, 2004
    Publication date: February 24, 2005
    Inventors: Takaaki Sato, Kota Fujimura
  • Publication number: 20040235501
    Abstract: A radio apparatus and base station apparatus that flexibly respond to an increase or decrease in the number of users without being constrained by the number of users. An A-DPCH signal processing section (106) generates dedicated transmission signals corresponding in number to users multiplexed based on the number of users for each sector input from a control station apparatus and outputs the multiplexed signal to a multiplexing section (105). An HSDPA signal processing section (107) selects a transmission destination sector based on an instruction from a base station control section, generates multiplexed transmission data and outputs the multiplexed data to the multiplexing section (105). The multiplexing section (105) code-multiplexes dedicated transmission signals of A-DPCH and packet data in HSDPA communication for each sector and outputs the multiplexed data to a radio transmission section (104).
    Type: Application
    Filed: February 6, 2004
    Publication date: November 25, 2004
    Inventor: Takaaki Sato
  • Patent number: 6819927
    Abstract: A mobile station is provided for autonomously detect an abrupt change of a propagation environment of a radio wave signal from a base station for servicing a peripheral cell and immediately executing a peripheral cell search. In order to execute a received signal strength indication plural times within one period of the peripheral cell search, the mobile station operates to set a cell search execution period &Dgr;t1 to a timer of a peripheral cell search controller and a RSSI measuring execution period &Dgr;t2 to a timer. The RSSI measuring unit operates to measure the RSSI in the receiving band at each RSSI measuring execution period &Dgr;t2 and immediately execute the peripheral cell search when the peripheral cell search controller determines that the RSSI has greatly varied.
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: November 16, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Takaaki Sato
  • Patent number: 6807420
    Abstract: A branch candidate selecting method by a mobile station and a diversity handover control method on a network side in DHO performance are provided which consider a maximum cable branch number and maximum radio branch number of the mobile station, when the mobile station detects the plurality of addition branch candidates and deletion branch candidates. The mobile station inserts a plurality of addition branch candidates and deletion branch candidates, that is, all the DHO candidates into one handover trigger signal, and notifies the network. The addition branch candidates are put into addition information parameters in the handover trigger signal, and the deletion branch candidates are put into deletion information parameters. To simplify processing on the network side, the network side separates the addition branch candidates from the deletion branch candidates, and carries out sequential processing of them independently.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: October 19, 2004
    Assignee: NTT DoCoMo, Inc.
    Inventors: Tomoyuki Ohtani, Motoshi Tamura, Takaaki Sato
  • Patent number: 6801515
    Abstract: A call admission control method and a mobile station device for a CDMA mobile communication system which is capable of not damaging a communication quality of a mobile station in communication even under a situation of large traffic, suppressing a possibility for degrading a communication qualities of mobile stations in communication with surrounding base stations sufficiently low, and improving efficiency without increasing the control signal traffic.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: October 5, 2004
    Assignee: NTT Mobile Communications Network Inc.
    Inventors: Yoshihiro Ishikawa, Yasuyuki Watanabe, Takaaki Sato
  • Publication number: 20040180662
    Abstract: A branch candidate selecting method by a mobile station and a diversity handover control method on a network side in DHO performance are provided which consider a maximum cable branch number and maximum radio branch number of the mobile station, when the mobile station detects the plurality of addition branch candidates and deletion branch candidates. The mobile station inserts a plurality of addition branch candidates and deletion branch candidates, that is, all the DHO candidates into one handover trigger signal, and notifies the network. The addition branch candidates are put into addition information parameters in the handover trigger signal, and the deletion branch candidates are put into deletion information parameters. To simplify processing on the network side, the network side separates the addition branch candidates from the deletion branch candidates, and carries out sequential processing of them independently.
    Type: Application
    Filed: March 26, 2004
    Publication date: September 16, 2004
    Inventors: Tomoyuki Ohtani, Motoshi Tamura, Takaaki Sato
  • Patent number: 6728227
    Abstract: A branch candidate selecting method by a mobile station and a diversity handover control method on a network side in DHO performance are provided which consider a maximum cable branch number and a maximum radio branch number of the mobile station, when the mobile station detects a plurality of addition branch candidates and deletion branch candidates. The mobile station inserts a plurality of addition branch candidates and deletion branch candidates, that is, all the DHO candidates into one handover trigger signal, and notifies the network. The addition branch candidates are put into addition information parameters in the handover trigger signal, and the deletion branch candidates are put into deletion information parameters. To simplify processing on the network side, the network side separates the addition branch candidates from the deletion branch candidates, and carries out sequential processing of them independently.
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: April 27, 2004
    Assignee: NTT DoCoMo, Inc.
    Inventors: Tomoyuki Ohtani, Motoshi Tamura, Takaaki Sato
  • Patent number: 6633556
    Abstract: Even in a case where a using frequency differs for each region of a service area, a mobile direction of a mobile station M is determined by a mobile direction determination section 115 in a network side (control station), and whether or not the mobile station M moves out of the same frequency area is determined by a determination section 116 for an outer area of the same frequency, and the using frequency is changed in advance by a frequency change section 104 of the mobile station
    Type: Grant
    Filed: March 16, 1999
    Date of Patent: October 14, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Takaaki Sato
  • Publication number: 20030156569
    Abstract: When packet sending and receiving apparatus 21 sets a connection, timing control apparatus 22 generates a timing information Tf as the packet is dispersed equivalently. Timing control apparatus 22 notices the timing information Tf to packet sending and receiving apparatus 21 and base station 3. Packet sending and receiving apparatus 21 carries out a packet generating processing in accordance with a frame offset value which is indicated by the timing information Tf. Therefore, the packets in which a packet transmission timing is averaged in a packet transmission period arrives to packet multiplex apparatus 23. Consequently, it is possible to decrease a waiting time of the packet multiplex transmission. Therefore, it is possible to use efficiency a transmission link L1, while being satisfied the required service quality.
    Type: Application
    Filed: July 19, 1999
    Publication date: August 21, 2003
    Inventors: HIROSHI KAWAKAMI, MOTOSHI TAMURA, TAKAAKI SATO
  • Publication number: 20030157936
    Abstract: A branch candidate selecting method by a mobile station and a diversity handover control method on a network side in DHO performance are provided which consider a maximum cable branch number and maximum radio branch number of the mobile station, when the mobile station detects the plurality of addition branch candidates and deletion branch candidates. The mobile station inserts a plurality of addition branch candidates and deletion branch candidates, that is, all the DHO candidates into one handover trigger signal, and notifies the network. The addition branch candidates are put into addition information parameters in the handover trigger signal, and the deletion branch candidates are put into deletion information parameters. To simplify processing on the network side, the network side separates the addition branch candidates from the deletion branch candidates, and carries out sequential processing of them independently.
    Type: Application
    Filed: March 7, 2003
    Publication date: August 21, 2003
    Inventors: Tomoyuki Ohtani, Motoshi Tamura, Takaaki Sato
  • Publication number: 20030157941
    Abstract: The base station comprises a number of reach times judging section which judges whether or not the number of times that the average radio resource usage volume for a prescribed time period has reached a change threshold value during a prescribed time period lies outside a reference number of times range; an allocation threshold value increasing and decreasing section which increases the allocation threshold value with respect to the radio resource usage volume at the time of a communications request from a mobile station, if the number of reach times is less than the minimum number of times of the reference number of times range, and reduces the allocation threshold value, if the number of reach times is greater than the maximum number of times of the reference number of times range; a usage volume at time of request judging section for judging whether or not the radio resource usage volume at the time of a communications request is less than an allocation threshold value; and a radio resource allocating sect
    Type: Application
    Filed: February 11, 2003
    Publication date: August 21, 2003
    Applicant: NTT DoCoMo, Inc.
    Inventors: Kazunori Obata, Takaaki Sato
  • Publication number: 20030139143
    Abstract: To provide a radio link controlling apparatus capable of maintaining communication quality at the time of setting a communication line.
    Type: Application
    Filed: January 16, 2003
    Publication date: July 24, 2003
    Applicant: NTT DoCoMo, Inc.
    Inventors: Kazunori Obata, Takaaki Sato
  • Publication number: 20030139185
    Abstract: A radio control apparatus 10 is provided with a call management system 18 configured so that, when a mobile station in communication with a first base station by a first communication link requests diversity handover with a second base station, the call management system 18 retrieves a potential information rate that is not higher than an information rate of the first communication link and that is highest, from an information rate table 31 storing information about information rates of communication links securable in the second base station under other radio control apparatus; and a link management system 20 configured so that, when the potential information rate is lower than that of the first communication link, the link management system 20 instructs the first base station to change the first communication link to a second communication link communicable at the potential information rate; the call management system 18 requests the other radio control apparatus to secure a third communication link communi
    Type: Application
    Filed: January 17, 2003
    Publication date: July 24, 2003
    Applicant: NTT DoCoMo, Inc.
    Inventors: Kazunori Obata, Takaaki Sato
  • Publication number: 20030009947
    Abstract: A weather strip includes a trim body having a generally U-shaped cross section, a hollow seal portion that protrudes from an outside surface of the trim body, and a holding lip formed on the trim body so as to extend from an inside surface of the trim body toward the inside of the trim body. The weather strip is mounted on the vehicle body such that the trim body is held by a flange provided at a periphery of a door opening of a motor vehicle. The weather strip is formed by extrusion molding such that the length of the holding lip is changed in a plurality of steps in accordance with the thickness of the flange.
    Type: Application
    Filed: July 12, 2002
    Publication date: January 16, 2003
    Inventors: Harumi Kogiso, Kiminori Mine, Masaki Ohashi, Takaaki Sato, Tomofumi Nishikawa, Masahiro Nozaki, Toshihiro Nahara
  • Publication number: 20020114289
    Abstract: A radio channel setting control method for communications between a base-station apparatus and a mobile-station apparatus in a mobile communications system employing a CDMA scheme comprising the steps of: a) determining whether or not a spread code used for the communications can be allocated; b) determining whether or not a predetermined hardware device can be allocated; c) determining whether or not a radio resource can be allocated; d) setting the radio channel between the base-station apparatus and mobile-station apparatus when it is determined that the spread code, predetermined hardware device and radio resource can be allocated.
    Type: Application
    Filed: February 12, 2002
    Publication date: August 22, 2002
    Applicant: NTT DoCoMo, Inc
    Inventors: Yoshihiro Ishikawa, Seizo Onoe, Takaaki Sato, Yoshitaka Hiramoto, Takehiro Nakamura