Patents by Inventor Masahiro Yagi

Masahiro Yagi 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: 8824425
    Abstract: Provided is a base station device which communicates to/from a mobile station device supporting a MIMO scheme. A base station device (100) includes: a number-of-spatial-streams identification section (126) for identifying the number of spatial streams to be formed between the base station device and a mobile station device (200); a PRU-to-be-allocated identification section (128) for identifying at least part of a plurality of radio channels (PRUs), as a PRU to be allocated for forming the spatial streams whose number is identified by the number-of-spatial-streams identification section (126); and a message generating section (130) for transmitting, to the mobile station device (200), a single piece of control information which includes information indicating the number of the spatial streams, and information indicating the PRU to be allocated.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: September 2, 2014
    Assignee: KYOCERA Corporation
    Inventor: Masahiro Yagi
  • Publication number: 20130329687
    Abstract: When the number of the serving radio terminals UE2 in the cell 3-1 is larger than the number of the SRS transmission frequency bands that are set to the transmittable frequency band, the radio base station eNB1-1 transmits RRC Connection Reconfiguration, which includes the information (the transmission stop instruction information) instructing to stop transmitting SRS, to a serving radio terminal UE2 that is regarded as having a small PF value and a low priority of SRS transmission.
    Type: Application
    Filed: February 23, 2012
    Publication date: December 12, 2013
    Applicant: KYOCERA CORPORATION
    Inventor: Masahiro Yagi
  • Publication number: 20130308594
    Abstract: An eNB1-1 transmits an RRC Connection Reconfiguration message to UE2-1 to UE2-3, in which SRS parameters and an application timing parameter are set, the SRS parameters differ for each of the UE2-1 to the UE2-3 and the application timing parameter is common in the UE2-1 to the UE2-3. The UE2-1 to the UE2-3 receive the RRC Connection Reconfiguration message and recognize the SRS parameters and the application timing parameter set in the message. Furthermore, when an application timing of the SRS parameter arrives, the UE2-1 to the UE2-3 apply the SRS parameter to the SRS and transmit the SRS.
    Type: Application
    Filed: December 15, 2011
    Publication date: November 21, 2013
    Applicant: KYOCERA CORPORATION
    Inventors: Nobuaki Takamatsu, Masahiro Yagi, Yoshizo Sato, Masaaki Nakata, Hiroki Fujita
  • Publication number: 20130273973
    Abstract: If the frequency band of an SRS from a serving radio terminal (UE 2-1) is identical with the frequency band of an SRS from a serving radio terminal (UE 2-2), a radio base station (eNB 1-1) transmits, to one of the serving radio terminals (UE 2-1, UE 2-2), an RRC connection reconfiguration message in which transmission halt request information has been set.
    Type: Application
    Filed: August 26, 2011
    Publication date: October 17, 2013
    Applicant: KYOCERA CORPORATION
    Inventors: Yoshizo Sato, Masaaki Nakata, Nobuaki Takamatsu, Masahiro Yagi, Hiroki Fujita
  • Publication number: 20130242933
    Abstract: An eNB1-1 employs frequency hopping that assigns a radio resource to a UE2-1 in response to switching of a frequency of an SRS from the UE2-1, and determines an MCS in a first radio resource block when a first downlink radio resource block is assigned to the UE2-1, on the basis of SINR acquired for a second downlink radio resource block having a frequency bandwidth equal to a frequency bandwidth of the first downlink radio resource and being assigned to the UE2-1 in the past.
    Type: Application
    Filed: November 25, 2011
    Publication date: September 19, 2013
    Applicant: KYOCERA CORPORATION
    Inventors: Shinobu Fujimoto, Nobuaki Takamatsu, Yuuki Nakasato, Masahiro Yagi
  • Publication number: 20130230018
    Abstract: Disclosed is a wireless base station (eNB1-1) that sets to each serving wireless terminal (UE2) different frequency bandwidths (SRS transmission frequency bandwidths) that are used when said serving wireless terminals (UE2) send SRS at a predetermined special sub-frame timing. In addition the wireless base station (eNB1-1) sends the set SRS transmission frequency bandwidth information to the serving wireless terminals (UE2).
    Type: Application
    Filed: July 15, 2011
    Publication date: September 5, 2013
    Applicant: KYOCERA CORPORATION
    Inventors: Masahiro Yagi, Masaaki Nakata, Nobuaki Takamatsu, Hiroki Fujita, Yoshizo Sato
  • Publication number: 20130225186
    Abstract: In a case where, although a radio base station (eNB 1-1) has established an SRS transmission frequency band, a serving radio terminal (UE 2-1) has transmitted, to the radio base station (eNB 1-1), an SRS by use of only a frequency band that is a part of the SRS transmission frequency band, the radio base station (eNB 1-1) allocates a downstream resource block the frequency band of which is included in the SRS transmission frequency band and further the frequency band of which is identical with the frequency band of the SRS received at the latest; then establishes, for the downstream resource block, a transmission weight based on the SRS received at the latest; and then uses the downstream resource block to transmit a radio signal.
    Type: Application
    Filed: August 26, 2011
    Publication date: August 29, 2013
    Applicant: KYOCERA CORPORATION
    Inventors: Yoshizo Sato, Nobuaki Takamatsu, Masahiro Yagi, Hiroki Fujita, Masaaki Nakata
  • Publication number: 20130215851
    Abstract: A wireless base station (eNB1-1) uses in a differentiated manner, depending on the expected data amount of downlink transmission to the serving wireless terminal UE, the transmission of RRC Connection Reconfiguration messages in which SRS specific transmission request information is set, and the transmission of RRC Connection Reconfiguration messages in which SRS hopping transmission request information is set.
    Type: Application
    Filed: August 26, 2011
    Publication date: August 22, 2013
    Applicant: KYOCERA CORPORATION
    Inventors: Yoshizo Sato, Masaaki Nakata, Nobuaki Takamatsu, Masahiro Yagi, Hiroki Fujita
  • Publication number: 20130215847
    Abstract: A transmission path state estimation unit estimates a state of a transmission path to a wireless terminal based on a DRS (Demodulation Reference Signal) included in uplink user data received from the wireless terminal when a re-sending request is received after transmission of an SRS is stopped. A transmission unit forms directivity of a plurality of antennas based on the estimated state of the transmission path and transmits downlink user data.
    Type: Application
    Filed: August 4, 2011
    Publication date: August 22, 2013
    Applicant: KYOCERA Corporation
    Inventors: Yoshizo Sato, Masaaki Nakata, Nobuaki Takamatsu, Masahiro Yagi, Hiroki Fujita
  • Publication number: 20130201948
    Abstract: The present invention provides a wireless base station (eNB1-1) that sets a first SRS transmission frequency band as a transmission frequency band for SRS at a first SSF timing and sets the first SRS transmission frequency band as the transmission frequency band for SRS at a second SSF timing, within the time for one frame. In this way, all frequency bands (allocatable frequency bands) for usable downstream resource blocks in wireless communications between the wireless base station (eNB1-1) and a serving wireless terminal (UE2-1) are covered by the first SRS transmission frequency band and the second SRS transmission frequency band.
    Type: Application
    Filed: August 26, 2011
    Publication date: August 8, 2013
    Applicant: KYOCERA CORPORATION
    Inventors: Yoshizo SATO, Masaaki NAKATA, Nobuaki TAKAMATSU, Masahiro YAGI, Hiroki FUJITA
  • Publication number: 20130176977
    Abstract: A resource determination unit determines at least a part of an uplink part in a switch subframe as a second resource for a wireless terminal to transmit an SRS and determines at least a part within any uplink subframe as a third resource for the wireless terminal to transmit uplink user data including a DRS for a prescribed period. A transmission path state estimation unit estimates a state of a transmission path to the wireless terminal based on the DRS included in the uplink user data after the third resource is determined. A resource notification unit forms antenna directivity based on the estimated state of the transmission path and transmits a control message for notifying the wireless terminal of the determined second resource.
    Type: Application
    Filed: August 5, 2011
    Publication date: July 11, 2013
    Applicant: KYOCERA CORPORATION
    Inventors: Yoshizo Sato, Masaaki Nakata, Nobuaki Takamatsu, Masahiro Yagi, Hiroki Fujita
  • Publication number: 20130164436
    Abstract: A thin film manufacturing apparatus is disclosed, including a liquid ejecting unit which ejects a liquid onto an object on which a film is to be formed and which forms a coating film; a first laser irradiating unit which continuously irradiates a laser light onto the coating film and which evaporates a solvent of the coating film; and a second laser irradiating unit which irradiates a laser light pulse onto the coating film of which the solvent is evaporated and which crystallizes the coating film of which the solvent is evaporated.
    Type: Application
    Filed: December 20, 2012
    Publication date: June 27, 2013
    Applicant: RICOH COMPANY
    Inventors: Masahiro Yagi, Osamu Machida, Ryo Tashiro, Jochen Stollenwerk, Melanie Meixner, Norbert Pirch, Peter Abels, Stefan Mann
  • Publication number: 20130050346
    Abstract: An applying liquid is applied to a first electrode by ejecting from a nozzle the applying liquid including a raw material for forming an elecromechanical transducer film, and a film of the applying liquid applied onto the first electrode is dried. The dried film is thermally decomposed and crystallized. At this time, a voltage is applied to an accompanying droplet collecting electrode for collecting a small accompanying droplet accompanying a chief droplet. The accompanying droplet is electrostatically attracted and collected by the accompanying droplet collecting electrode before reaching the first electrode. At this time, the voltage is applied to the accompanying droplet collecting electrode by the voltage applying part after a predetermined period of time has elapsed from when a droplet of the applying liquid has been ejected from the nozzle.
    Type: Application
    Filed: August 28, 2012
    Publication date: February 28, 2013
    Applicant: RICOH COMPANY, LTD.
    Inventors: Atsushi TAKEUCHI, Osamu MACHIDA, Ryo TASHIRO, Masahiro YAGI, Dongsik JANG, Yoshinori BANDOH
  • Publication number: 20120329098
    Abstract: The present invention has objects to provide a thermostable cellobiose 2-epimerase, its preparation and uses. The present invention attains the above objects by providing a thermostable cellobiose 2-epimerase, a DNA encoding the enzyme, a recombinant DNA and transformant comprising the DNA, a process for producing the enzyme, and a process for producing isomerized saccharides using the enzyme.
    Type: Application
    Filed: August 21, 2012
    Publication date: December 27, 2012
    Applicant: KABUSHIKI KAISHA HAYASHIBARA SEIBUTSU KAGAKU KENKYUJO
    Inventors: Hikaru Watanabe, Masahiro Yagi, Tomoyuki Nishimoto, Hiroto Chaen, Shigeharu Fukuda
  • Publication number: 20120307812
    Abstract: A base station (12) performs communication to and from a mobile station via at least a part of a plurality of radio channels. The base station (12) includes: a channel allocation section (30) for allocating a radio channel having an allocation effective period of two or more frames to the mobile station; and a channel notification section (34) for notifying the mobile station of a radio channel newly allocated by the channel allocation section (30) in response to an expiration of the allocation effective period of the radio channel which has been allocated by the channel allocation section (30). The mobile station uses the radio channel notified from the base station (12) for communicating to and from the base station (12) until an allocation effective period of the new radio channel expires.
    Type: Application
    Filed: November 24, 2010
    Publication date: December 6, 2012
    Applicant: KYOCERA CORPORATION
    Inventors: Nobuaki Takamatsu, Masahiro Yagi
  • Publication number: 20120170554
    Abstract: Provided is a base station device which communicates to/from a mobile station device supporting a MIMO scheme. A base station device (100) includes: a number-of-spatial-streams identification section (126) for identifying the number of spatial streams to be formed between the base station device and a mobile station device (200); a PRU-to-be-allocated identification section (128) for identifying at least part of a plurality of radio channels (PRUs), as a PRU to be allocated for forming the spatial streams whose number is identified by the number-of-spatial-streams identification section (126); and a message generating section (130) for transmitting, to the mobile station device (200), a single piece of control information which includes information indicating the number of the spatial streams, and information indicating the PRU to be allocated.
    Type: Application
    Filed: September 8, 2010
    Publication date: July 5, 2012
    Applicant: KYOCERA CORPORATION
    Inventor: Masahiro Yagi
  • Patent number: 8199633
    Abstract: A base station is provided. The base station conducts wireless communication with one or more terminal devices using an OFDMA system, and has: a channel assigning unit that assigns PRU an extra channel used for data communication and an anchor channel including a map indicating the position of PRU to which the extra channel is assigned, wherein the channel assigning unit assigns the anchor channel to PRU of a predetermined frequency domain and assigns the extra channel to PRU of a domain other than the predetermined frequency domain.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: June 12, 2012
    Assignee: Kyocera Corporation
    Inventor: Masahiro Yagi
  • Publication number: 20120125806
    Abstract: The press-through pack package of the invention has a covering material composed of a stretched film with at least one layer comprising a thermoplastic resin and an inorganic filler at 5 parts by weight with respect to 100 parts by weight of the thermoplastic resin.
    Type: Application
    Filed: November 22, 2011
    Publication date: May 24, 2012
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Masahiro YAGI, Hiroaki KIMURA, Yutaka MATSUKI, Hideki HAYASHI
  • Publication number: 20120040407
    Abstract: The present invention has objects to provide a thermostable cellobiose 2-epimerase, its preparation and uses. The present invention attains the above objects by providing a thermostable cellobiose 2-epimerase, a DNA encoding the enzyme, a recombinant DNA and transformant comprising the DNA, a process for producing the enzyme, and a process for producing isomerized saccharides using the enzyme.
    Type: Application
    Filed: January 25, 2010
    Publication date: February 16, 2012
    Applicant: Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo
    Inventors: Hikaru Watanabe, Masahiro Yagi, Tomoyuki Nishimoto, Hiroto Chaen, Shigeharu Fukuda
  • Publication number: 20120028075
    Abstract: A thin film manufacturing method includes placing a substrate in a raw material solution with which a thin film is formed on a first principal plane of the substrate; forming the thin film on the first principal plane of the substrate by applying light to a first principal plane side from a light source; measuring a distance from the first principal plane of the substrate to a liquid surface of the raw material solution by applying light from the light source; and adjusting a position of the substrate in a height direction on the basis of a measurement result obtained at the measuring.
    Type: Application
    Filed: July 11, 2011
    Publication date: February 2, 2012
    Inventors: Masahiro YAGI, Eiichi Ohta, Yoshikazu Akiyama, Ryoh Tashiro, Osamu Machida