Patents by Inventor Takahiro Tsutsui

Takahiro Tsutsui 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: 20150350863
    Abstract: A base station communicates with a mobile station. The base station includes a wireless communication unit and a control unit. The wireless communication unit transmits an alert periodically to the mobile station using a first channel, receives, from the mobile station, alert reception information related to reception of the alert, and transmits at least a part of the alert to the mobile station using a second channel different from the first channel. The control unit instructs the wireless communication unit, in response to the alert reception information, to transmit to the mobile station at least a part of the alert using the second channel.
    Type: Application
    Filed: December 9, 2013
    Publication date: December 3, 2015
    Inventor: Takahiro TSUTSUI
  • Publication number: 20150327152
    Abstract: A communication device serving as a base station configured to notify a mobile station of a warning or an upper device of the base station includes a controller configured to shut down the warning, notified from the base station based on warning information, upon determining the congestion condition of the base station, and a communication part configured to transmit the information regarding a shutdown of warning. Herein, the controller compares a first threshold with a resource usage rate or the amount of resources in the base station, thus determining the congestion condition of the base station. Additionally, the controller compares a second threshold with the warning information so as to determine a shutdown of warning. The second threshold can be set based on the resource usage rate or the type of the base station.
    Type: Application
    Filed: December 20, 2013
    Publication date: November 12, 2015
    Applicant: NEC Corporation
    Inventor: Takahiro TSUTSUI
  • Patent number: 9167620
    Abstract: In order to improve utilization efficiency of communication resources in a case of acquiring a reception status at a user equipment of a radio signal upon providing LCS, an E-SMLC (40) forming a mobile communication system requests an eNB (10) to notify a result of measurement on a reception status at a UE (20) of a radio signal at least from the eNB (10) for a predetermined number of times. The E-SMLC (40) calculates a location of the UE (20) using the result of the measurement when the notification is performed for the number of times, and provides a service corresponding to the location. In response to the request, the eNB (10) instructs the UE (20) to perform the measurement for the number of times and sequentially notifies the E-SMLC (40) of the result of the measurement reported from the UE (20) for the number of times. The UE (20) performs measurement on the reception status for the number of times and sequentially notifies the eNB (10) of the result of the measurement for the number of times.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: October 20, 2015
    Assignee: NEC CORPORATION
    Inventor: Takahiro Tsutsui
  • Patent number: 9056996
    Abstract: An ink-jet recording ink set includes: an ink (I) containing a dye D1, a compound C1 represented by the following formula and having a U+V of S1, and water; and an ink (II) containing a dye D2, a compound C2 represented by the following formula and having a U+V of S2, and water in which in case that a surface tension ?L1 (mN/m) of an evaluation liquid L1 obtained by adding, to a 5 mass % aqueous solution of the dye D1, a compound C3 in an amount corresponding to 1 mass % of the aqueous solution, and a surface tension ?L2 (mN/m) of an evaluation liquid L2 obtained by adding, to a 5 mass % aqueous solution of the dye D2, the compound C3 in an amount corresponding to 1 mass % of the aqueous solution satisfy a relationship of ?L1??L2?10 (mN/m), the S1 and the S2 satisfy a relationship of 2?S2?S1?7.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: June 16, 2015
    Assignee: Canon Finetech Inc.
    Inventors: Eriko Himura, Takahiro Tsutsui, Yuusuke Sumikawa
  • Publication number: 20150070436
    Abstract: An ink jet recording ink including a pigment; water; and water-soluble compounds. The pigment comprises a resin-dispersed pigment dispersed with a (meth)acrylate-based random copolymer having an acid value of 100-160 mgKOH/g. The water-soluble compounds include at least ethylene urea and a water-soluble compound having a hydrophilicity-hydrophobicity coefficient defined by the following equation (A) of 0.37 or less The total content of the water-soluble compounds is 22-50 mass % with respect to the total amount of the ink The content of the ethylene urea is 11.0 mass % or more with respect to the total amount of the ink, and the proportion of the amount of the ethylene urea in the total amount of the water-soluble compounds is 50% by mass or less, Hydrophilicity-hydrophobicity coefficient=((water activity value of 20% aqueous solution)?(molar fraction of water in 20% aqueous solution))/(1?(molar fraction of water in 20% aqueous solution)) ??Equation (A).
    Type: Application
    Filed: September 2, 2014
    Publication date: March 12, 2015
    Inventors: Kanako Aratani, Ryuta Aoto, Yuusuke Sumikawa, Takahiro Tsutsui, Shintaro Suzuki, Masato Kawakami
  • Publication number: 20150070449
    Abstract: An ink-jet recording ink set includes: an ink (I) containing a dye D1, a compound C1 represented by the following formula and having a U+V of S1, and water; and an ink (II) containing a dye D2, a compound C2 represented by the following formula and having a U+V of S2, and water in which in case that a surface tension ?L1 (mN/m) of an evaluation liquid L1 obtained by adding, to a 5 mass % aqueous solution of the dye D1, a compound C3 in an amount corresponding to 1 mass % of the aqueous solution, and a surface tension ?L2 (mN/m) of an evaluation liquid L2 obtained by adding, to a 5 mass % aqueous solution of the dye D2, the compound C3 in an amount corresponding to 1 mass % of the aqueous solution satisfy a relationship of ?L1??L2?10 (mN/m), the S1 and the S2 satisfy a relationship of 2?S2?S1?7.
    Type: Application
    Filed: September 3, 2014
    Publication date: March 12, 2015
    Inventors: Eriko Himura, Takahiro Tsutsui, Yuusuke Sumikawa
  • Publication number: 20150070437
    Abstract: An ink jet recording ink including a coloring material; water; and three kinds of water-soluble compounds. The content of the water is 70 mass % or more with respect to the total amount of the ink. Each water-soluble compound has a molecular weight of 80 or more and is a liquid compound having a vapor pressure at 20° C. of 5 Pa or less or a solid compound, and at least one kind of the water-soluble compounds is a solid compound. In case that the water-soluble compounds are mixed at a ratio at which the water-soluble compounds are incorporated into the ink to provide a mixture, a 40% aqueous solution of the mixture has a water activity value of 0.88-0.91 and a viscosity of 3.3 mPa·s or less. The total content of the water-soluble compounds in the ink is 20-25 mass % with respect to the total amount of the ink.
    Type: Application
    Filed: September 4, 2014
    Publication date: March 12, 2015
    Inventors: Yuusuke Sumikawa, Masato Kawakami, Ryuta Aoto, Eriko Himura, Kanako Aratani, Takahiro Tsutsui, Shintaro Suzuki
  • Publication number: 20150042737
    Abstract: A recording medium, including: an ink-receiving layer configured to receive an ink for inkjet recording; and a transparent sheet having a total luminous transmittance of 50% or more, wherein the recoding medium has a layered structure in which the transparent sheet and the ink-receiving layer are sequentially stacked, and the ink-receiving layer includes a gap-absorption-type ink-receiving layer including a composition including at least inorganic fine particles and polyvinyl alcohol having a weight-average polymerization degree of 2,000 or more and 5,000 or less and a saponification degree of 70 mol % or more and 90 mol % or less.
    Type: Application
    Filed: August 7, 2014
    Publication date: February 12, 2015
    Inventors: Takahiro Tsutsui, Yoichi Sonobe, Masami Aruga, Daizo Kitajo, Hiroyuki Ishinaga, Hiromitsu Hirabayashi
  • Publication number: 20140313265
    Abstract: A filling liquid for distribution of an ink jet head of a thermal type, the filling liquid filling a nozzle flow path during distribution of the ink jet head, a hydrophilic region formed on a periphery of an ink discharge port having an opening area of from 100 to 350 ?m2, the filling liquid including: an aqueous medium having at least a water-soluble organic compound and water as constituents; and a dye dissolved in the aqueous medium, a concentration of the dye in the filling liquid being 0.2 mass % or more and 1 mass % or less with respect to a total mass of the filling liquid and the concentration of the dye being equal to or less than saturation solubility with respect to the water-soluble organic compound, wherein the filling liquid has a surface tension of 25 mN/m or more and 34 mN/m or less.
    Type: Application
    Filed: March 7, 2014
    Publication date: October 23, 2014
    Applicant: CANON FINETECH INC.
    Inventors: Eriko Himura, Shintaro Suzuki, Yusuke Sumikawa, Takahiro Tsutsui, Shoji Koike
  • Patent number: 8639269
    Abstract: A wireless communication system includes a mobile terminal and a wireless base station that transmits to the mobile terminal notification information that is used for establishing a call between the mobile terminal and the wireless base station. The mobile terminal transmits identification information of predetermined notification information to the wireless base station. The wireless base station compares the identification information that was transmitted in from the mobile terminal and the identification information of the notification information of the current transmission, and based on the result of the comparison, transmits to the mobile terminal information for acquiring the notification information of the current transmission.
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: January 28, 2014
    Assignee: NEC Corporation
    Inventor: Takahiro Tsutsui
  • Publication number: 20130244674
    Abstract: A mobile terminal in accordance with one of the 3GPP (Third Generation Partnership Project) standards is provided including a receiver that receives an incoming message comprising a predetermined information element from a base station. The mobile terminal also includes a memory that stores a value of the predetermined information element as a received element value. The mobile station also includes a controller that stores the received element value in place of a previously stored element value corresponding to a previously received information element. The mobile station also includes a transmitter that transmits, to the base station, an outgoing message comprising identification information identifying the incoming message received by the receiver.
    Type: Application
    Filed: March 18, 2013
    Publication date: September 19, 2013
    Inventor: Takahiro TSUTSUI
  • Publication number: 20130183990
    Abstract: A radio communication system according to the present invention is a radio communication system including mobile stations and a base station which performs radio communication with the mobile stations, and includes: identifier assignment means for assigning an identical group identifier to the plurality of mobile stations; release instruction means for specifying the group identifier to instruct release of a radio connection; and release means for performing processing of releasing the radio connection for the mobile stations having the group identifier specified by the release instruction means. Accordingly, it is possible to perform processing of releasing a radio connection for mobile stations while efficiently using radio resources.
    Type: Application
    Filed: October 4, 2011
    Publication date: July 18, 2013
    Applicant: NEC CORPORATION
    Inventor: Takahiro Tsutsui
  • Publication number: 20130143624
    Abstract: In order to improve utilization efficiency of communication resources in a case of acquiring a reception status at a user equipment of a radio signal upon providing LCS, an E-SMLC (40) forming a mobile communication system requests an eNB (10) to notify a result of measurement on a reception status at a UE (20) of a radio signal at least from the eNB (10) for a predetermined number of times. The E-SMLC (40) calculates a location of the UE (20) using the result of the measurement when the notification is performed for the number of times, and provides a service corresponding to the location. In response to the request, the eNB (10) instructs the UE (20) to perform the measurement for the number of times and sequentially notifies the E-SMLC (40) of the result of the measurement reported from the UE (20) for the number of times. The UE (20) performs measurement on the reception status for the number of times and sequentially notifies the eNB (10) of the result of the measurement for the number of times.
    Type: Application
    Filed: May 31, 2011
    Publication date: June 6, 2013
    Applicant: NEC CORPORATION
    Inventor: Takahiro Tsutsui
  • Publication number: 20110217993
    Abstract: A wireless communication system includes a mobile terminal and a wireless base station that transmits to the mobile terminal notification information that is used for establishing a call between the mobile terminal and the wireless base station. The mobile terminal transmits identification information of predetermined notification information to the wireless base station. The wireless base station compares the identification information that was transmitted in from the mobile terminal and the identification information of the notification information of the current transmission, and based on the result of the comparison, transmits to the mobile terminal information for acquiring the notification information of the current transmission.
    Type: Application
    Filed: November 11, 2009
    Publication date: September 8, 2011
    Applicant: NEC CORPORATION
    Inventor: Takahiro Tsutsui
  • Patent number: 7211913
    Abstract: The motor cooling system of the present invention is a system for cooling a three-phase alternating current motor mounted on a vehicle as a traction motor where oil is introduced as cooling oil from driving-related equipment of the vehicle, wherein the traction motor is equipped with a stator having a neutral point, wherein the vehicle is in a high-load driving state when a larger load is applied to the traction motor than a predetermined amount, the neutral point contacts the cooling oil with a larger contact amount than when the vehicle is not in the high-load driving state.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: May 1, 2007
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takahiro Tsutsui, Takaaki Nagi
  • Patent number: 7191870
    Abstract: A breather apparatus for a power train of vehicle is presented, which has a motor and a gear box connected to the motor, including a common case wall, first and second breather paths formed within the common case wall and a third breather path provided for communicating with both the first and second breather paths at an upper portion of the common case wall, and further communicating with the atmosphere. The apparatus has a feature that a blocking device is provided so that the lubricant coming through the second breather path can be prevented from entering the first breather path.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: March 20, 2007
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Kiyoshi Kimura, Seiichi Mogi, Kenji Morizumi, Takahiro Tsutsui
  • Publication number: 20060281847
    Abstract: The invention provides a fine particle liquid dispersion in which inorganic fine particles are dispersed in an aqueous solvent, which further comprises at least one polymer selected from the group consisting of alkylamine-epihalohydrin copolymers, and dicyandiamide, allylamine and acrylic polymers, and acetic acid. The liquid dispersion is used to form an ink-receiving layer, thereby producing a recording medium.
    Type: Application
    Filed: June 7, 2006
    Publication date: December 14, 2006
    Applicant: Canon Finetech Inc.
    Inventors: Kanako Furutachi, Kenichi Kawano, Takahiro Tsutsui
  • Publication number: 20060073287
    Abstract: A recording medium is provided on at least one of its opposite sides with at least one ink-receiving layer. The ink-receiving layer contains an inorganic pigment, a water-soluble resin and/or water-dispersible resin, thiodipropionic acid or its salt, and tocopherol or its derivative.
    Type: Application
    Filed: December 24, 2003
    Publication date: April 6, 2006
    Inventors: Takahiro Tsutsui, Hiroshi Kakihira
  • Publication number: 20050285457
    Abstract: The motor cooling system of the present invention is a system for cooling a three-phase alternating current motor mounted on a vehicle as a traction motor where oil is introduced as cooling oil from driving-related equipment of the vehicle, wherein the traction motor is equipped with a stator having a neutral point, wherein when the vehicle is in a high-load driving state of driving in a state of a larger load's being applied to the traction motor than a predetermined amount, the neutral point contacts the cooling oil with a larger contact amount than when the vehicle is in a driving state of not the high-load driving state.
    Type: Application
    Filed: March 30, 2005
    Publication date: December 29, 2005
    Inventors: Takahiro Tsutsui, Takaaki Nagi
  • Publication number: 20040195044
    Abstract: A breather apparatus for a power train of vehicle is presented, which has a motor and a gear box connected to the motor, including a common case wall, first and second breather paths formed within the common case wall and a third breather path provided for communicating with both the first and second breather paths at an upper portion of the common case wall, and further communicating with the atmosphere. The apparatus has a feature that a blocking device is provided so that the lubricant coming through the second breather path can be prevented from entering the first breather path.
    Type: Application
    Filed: July 25, 2003
    Publication date: October 7, 2004
    Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHA
    Inventors: Kiyoshi Kimura, Seiichi Mogi, Kenji Morizumi, Takahiro Tsutsui