Patents by Inventor Takahiro Yamasaki

Takahiro Yamasaki 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: 9648266
    Abstract: There are provided a driving method for an image pickup device, a driving method for an imaging system, an image pickup device, and an imaging system, which changes an operation for mixing signals generated by a plurality of pixels in accordance with an amplification factor of a signal processing circuit in the image pickup device or an amplification unit externally provided to the image pickup device.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: May 9, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takahiro Yamasaki, Keisuke Ota, Hiroki Hiyama, Yasuhiro Oguro, Nobuhiro Takeda, Satoshi Suzuki
  • Patent number: 9618216
    Abstract: An air conditioning apparatus includes a casing having intake and blow-out ports, a partition member dividing an interior of the casing, a heat exchanger, and a centrifugal fan. The blow-out port is at least partially disposed adjacent to a blow-out port nearby lateral part of the casing along an opening direction of a fan entrance and the blow-out port. A fan downwind space is located on a downwind side of a bladed wheel within a fan compartment, and has a blow-out port opposed space and a blow-out port non-opposed space. A first guide member directs air existing in the blow-out port non-opposed space toward the blow-out port opposed space, and is mounted in a boundary region located astride of regions located on forward and rearward sides in a rotary direction within the blow-out port non-opposed and blow-out port opposed spaces, respectively.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: April 11, 2017
    Assignee: Daikin Industries, Ltd.
    Inventors: Takashi Kashihara, Tsunehisa Sanagi, Takahiro Yamasaki, Naofumi Yokoyama, Tsuyoshi Yokomizo
  • Publication number: 20170099448
    Abstract: Provided is a solid state imaging device including a plurality of pixels, a signal line on which a pixel signal is transmitted, a load transistor having a drain connected to the signal line, a readout circuit that reads out the pixel signal from the signal line, and a control unit that controls a current flowing in the load transistor in accordance with a potential of a control terminal. When a reference potential of the pixel fluctuates relatively to a reference potential of the readout circuit, a potential of the control terminal relative to a potential of a source of the load transistor is changed in a same phase with a fluctuation of the reference potential of the pixel.
    Type: Application
    Filed: September 7, 2016
    Publication date: April 6, 2017
    Inventors: Masaaki Minowa, Keisuke Ota, Takahiro Yamasaki, Takamasa Sakuragi, Noriyuki Kaifu
  • Publication number: 20170078603
    Abstract: Provided is a solid-state image pickup element including: a plurality of pixels arranged in a pixel well region; a readout circuit arranged in a peripheral well region, having a first input terminal for receiving the pixel signals from the plurality of pixels and a second input terminal for receiving a reference signal; and a reference signal circuit arranged in the peripheral well region, having a first electrode to which a ground voltage is supplied, and being configured to output the reference signal to the second input terminal of the readout circuit, wherein a resistance value R1 of an electrical path from one of a plurality of pixel well contacts to the first electrode and a resistance value R2 of an electrical path from one of a plurality of peripheral well contacts closest to the first electrode to the first electrode satisfy a relationship of R1<R2.
    Type: Application
    Filed: August 3, 2016
    Publication date: March 16, 2017
    Inventors: Takahiro Yamasaki, Masaaki Minowa, Keisuke Ota, Takamasa Sakuragi, Noriyuki Kaifu, Toru Koizumi, Kazuhiro Saito, Daisuke Kobayashi
  • Publication number: 20150330403
    Abstract: An air conditioning apparatus includes a casing having intake and blow-out ports, a partition member dividing an interior of the casing, a heat exchanger and a centrifugal fan. The centrifugal fan includes a hub and a bladed wheel having a plurality of rearward blades and sucks air existing in the heat exchanger compartment into the fan compartment through the fan entrance. The bladed wheel is mounted in the fan compartment such that a rotary shaft of the bladed wheel is oriented along an opening direction of the fan entrance and an opening direction of the blow-out port. The hub connects blow-out port side ends of the plural rearward blades and is configured to be rotated about the rotary shaft. The hub has an outer diameter smaller than an outer diameter of the rearward blades.
    Type: Application
    Filed: May 11, 2015
    Publication date: November 19, 2015
    Inventors: Takahiro YAMASAKI, Takashi KASHIHARA, Kaname MARUYAMA, Tsunehisa SANAGI, Naofumi YOKOYAMA
  • Publication number: 20150326809
    Abstract: There are provided a driving method for an image pickup device, a driving method for an imaging system, an image pickup device, and an imaging system, which changes an operation for mixing signals generated by a plurality of pixels in accordance with an amplification factor of a signal processing circuit in the image pickup device or an amplification unit externally provided to the image pickup device.
    Type: Application
    Filed: May 5, 2015
    Publication date: November 12, 2015
    Inventors: Takahiro Yamasaki, Keisuke Ota, Hiroki Hiyama, Yasuhiro Oguro, Nobuhiro Takeda, Satoshi Suzuki
  • Publication number: 20150300360
    Abstract: An air conditioning apparatus includes a casing having intake and blow-out ports, a partition member dividing an interior of the casing, a heat exchanger, a centrifugal fan, a heater and a fan heat shield. The centrifugal fan includes a bladed wheel mounted in the fan compartment such that a rotary shaft of the bladed wheel is oriented along an opening direction of the fan entrance and an opening direction of the blow-out port, and the bladed wheel being made of resin. The heater is mounted in a blow-out port opposed space opposed to the blow-out port within a fan downwind space located on a downwind side of the bladed wheel within the fan compartment. The fan heat shield member is mounted in the fan downwind space in order to cover a part of the bladed wheel that is opposed to the heater.
    Type: Application
    Filed: April 15, 2015
    Publication date: October 22, 2015
    Inventors: Naofumi YOKOYAMA, Tsuyoshi YOKOMIZO, Takahiro YAMASAKI, Takashi KASHIHARA, Akihiko MORI
  • Publication number: 20150300688
    Abstract: An air conditioning apparatus includes a casing having intake and blow-out ports, a partition member dividing an interior of the casing, a heat exchanger, and a centrifugal fan. The partition member has a fan entrance bored in opposition to the blow-out port. The centrifugal fan includes a bladed wheel mounted in the fan compartment such that a rotary shaft of the bladed wheel is oriented along the fan entrance and the blow-out port. The rotary shaft is disposed adjacent to a bladed wheel nearby lateral part of multiple lateral parts of the casing that are disposed along the opening direction of the fan entrance and the opening direction of the blow-out port. The blow-out port is at least partially disposed in a position adjacent to a blow-out port nearby lateral part of the multiple lateral parts of the casing and being opposed to the bladed wheel nearby lateral part.
    Type: Application
    Filed: April 15, 2015
    Publication date: October 22, 2015
    Inventors: Naofumi YOKOYAMA, Takahiro YAMASAKI, Takashi KASHIHARA, Tsuyoshi YOKOMIZO
  • Publication number: 20150300668
    Abstract: An air conditioning apparatus includes a casing having intake and blow-out ports, a partition member dividing an interior of the casing, a heat exchanger, a centrifugal fan, and a heater. The centrifugal fan includes a bladed wheel having a plurality of rearward blades and sucks air existing in the heat exchanger compartment into the fan compartment through the fan entrance. The bladed wheel is mounted in the fan compartment such that a rotary shaft of the bladed wheel is oriented along an opening direction of the fan entrance and an opening direction of the blow-out port. The heater is mounted in a blow-out port opposed space. The blow-out port opposed space is a region opposed to the blow-out port within a fan downwind space. The fan downwind space is a space located on a downwind side of the bladed wheel within the fan compartment.
    Type: Application
    Filed: April 15, 2015
    Publication date: October 22, 2015
    Inventors: Takahiro YAMASAKI, Tsunehisa SANAGI, Naofumi YOKOYAMA, Takashi KASHIHARA, Akihiko MORI
  • Publication number: 20150299104
    Abstract: The present invention provides a compound useful as a synthetic intermediate for an anti-HIV agent having an integrase inhibitory activity, and a production method thereof, and a production method of an anti-HIV agent using the synthetic intermediate. Specifically, for example, a compound represented by the formula (2?): wherein R is a fluorine atom or a methoxy group, and R400 is a hydrogen atom or a C1-C4 alkyl group, or a salt thereof, and a production method thereof, and a production method of an anti-HIV agent using the synthetic intermediate.
    Type: Application
    Filed: September 10, 2014
    Publication date: October 22, 2015
    Inventors: Koji Matsuda, Koji Ando, Shigeji Ohki, Jun-Ichi Hoshi, Takahiro Yamasaki
  • Publication number: 20150300669
    Abstract: An air conditioning apparatus includes a casing having intake and blow-out ports, a partition member dividing an interior of the casing, a heat exchanger, and a centrifugal fan. The blow-out port is at least partially disposed adjacent to a blow-out port nearby lateral part of the casing along an opening direction of a fan entrance and the blow-out port. A fan downwind space is located on a downwind side of a bladed wheel within a fan compartment, and has a blow-out port opposed space and a blow-out port non-opposed space. A first guide member directs air existing in the blow-out port non-opposed space toward the blow-out port opposed space, and is mounted in a boundary region located astride of regions located on forward and rearward sides in a rotary direction within the blow-out port non-opposed and blow-out port opposed spaces, respectively.
    Type: Application
    Filed: April 15, 2015
    Publication date: October 22, 2015
    Inventors: Takashi KASHIHARA, Tsunehisa SANAGI, Takahiro YAMASAKI, Naofumi YOKOYAMA, Tsuyoshi YOKOMIZO
  • Publication number: 20150300359
    Abstract: An air conditioning apparatus includes a centrifugal fan mounted in an interior of a casing and a pressure sensor. The pressure sensor can have a primary-side pressure detection tube opened in a position adjacent to a circumferential part of the casing on an inlet side surface of the bell mouth of the fan when the bell mouth is seen from a direction along the rotary shaft to detect a primary-side pressure of the centrifugal fan. Alternatively, the pressure sensor can have a primary-side pressure detection tube opened in a position adjacent to a circumferential part of the casing on a heat exchanger compartment side surface of the partition member when the partition member is seen from a direction along the rotary shaft to detect a primary-side pressure of the centrifugal fan.
    Type: Application
    Filed: April 15, 2015
    Publication date: October 22, 2015
    Inventors: Takashi KASHIHARA, Takahiro YAMASAKI, Naofumi YOKOYAMA, Tsuyoshi YOKOMIZO
  • Publication number: 20150285523
    Abstract: An air conditioning apparatus includes a casing having intake and blow-out ports, a partition member dividing an interior of the casing and having a fan entrance, a heat exchanger, a first drain pan mounted in the heat exchanger to receive water produced by dew condensation in the heat exchanger, and a centrifugal fan. The centrifugal fan includes a bladed wheel mounted in the fan compartment such that a rotary shaft of the bladed wheel is oriented along the fan entrance. The first drain is disposed adjacent to a drain pan nearby lateral part of multiple lateral parts of the casing that are disposed along the opening direction of the fan entrance. The rotary shaft is disposed adjacent to a bladed wheel nearby lateral part of the multiple lateral parts of the casing and being opposed to the drain pan nearby lateral part.
    Type: Application
    Filed: April 15, 2015
    Publication date: October 8, 2015
    Inventors: Naofumi YOKOYAMA, Takahiro YAMASAKI, Takashi KASHIHARA, Tsuyoshi YOKOMIZO
  • Patent number: 9071826
    Abstract: A video encoder apparatus using a distributed video coding (DVC) includes a Wyner-Ziv frame encoder for forming a predictive image of a Wyner-Ziv frame on the basis of coded key frames, and determining, according to the fallibility of the transform coefficients of the predictive image with respect to the transform coefficients of an original image based on the Wyner-Ziv frame, the amount of error correction codes to be transmitted so as to transmit the error correction codes corresponding to the determined amount. When no errors are found between the transform coefficients of the original image of the Wyner-Ziv frame and the predictive image, information indicating that no errors are found is sent out instead of the error correction codes for the Wyner-Ziv frame in question.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: June 30, 2015
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Takahiro Yamasaki
  • Publication number: 20150071775
    Abstract: A fan unit includes a fan case, a partition member and a centrifugal fan. The fan case has an inflow port and a blowout port. The fan case includes a unit connecting portion for connecting the heat exchange unit. The partition member partitions an inside of the fan case into an upstream side space and a downstream side space. The partition member has an opening for allowing the upstream side space and the downstream side space to communicate with each other. The centrifugal fan includes an impeller including a plurality of backward curved blades. The centrifugal fan is arranged such that the impeller is located in the downstream side space and sucks air in the upstream side space through the opening. The blowout port is located on an outer side in a radial direction of the impeller in the downstream side space.
    Type: Application
    Filed: September 10, 2014
    Publication date: March 12, 2015
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Takashi KASHIHARA, Takahiro YAMASAKI, Kaname MARUYAMA
  • Publication number: 20150068711
    Abstract: The duct-type indoor unit of an air conditioner includes: a casing including a first surface and a second surface opposing each other, an inlet duct connection part which is formed in the first surface and to which an inlet duct is connected, and an outlet duct connection part which is formed in the second surface and to which an outlet duct is connected; a partition member partitioning interior of the casing into a first space on an inlet side and a second space on an outlet side, the partitioning member having an opening communicating the first space with the second space; a heat exchanger arranged inside the first space; and a centrifugal fan having an impeller with backward curved blades, the impeller being positioned inside the second space to suck in air in the first space through the opening. The impeller has a rotating shaft parallel to the first surface.
    Type: Application
    Filed: September 10, 2014
    Publication date: March 12, 2015
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Takashi KASHIHARA, Takahiro YAMASAKI, Kaname MARUYAMA
  • Publication number: 20140037010
    Abstract: A video sequence is encoded by encoding key frames to obtain coded data and non-key frames to obtain error-correcting information. In the encoding process, key frame data are stored in a buffer, first motion information pertaining to the key frames is obtained, and the first motion information is applied to the stored key frame data to generate predicted key frame data. Second motion information pertaining to the non-key frames is also obtained and used to generate predicted non-key frame data. Either the first motion information is obtained from the second motion information, or the second motion information is obtained from the first motion information. The encoder accordingly does not have to obtain motion information from the decoder, and can estimate the amount of error-correcting information to send to the decoder.
    Type: Application
    Filed: October 8, 2013
    Publication date: February 6, 2014
    Applicant: OKI ELECTRIC INDUSTRY CO., LTD.
    Inventor: Takahiro YAMASAKI
  • Patent number: 8442114
    Abstract: A moving picture encoding apparatus divides a moving picture signal into key frames and non-key frames, encodes the key frames, predicts the non-key frames from the encoded key frames, determines a final encoding rate for each non-key frame, encodes each non-key frame, and outputs an error-correcting code at the final encoding rate as encoded data of the non-key frame. To determine the final encoding rate, the number of error-correcting bits needed to correct prediction errors is estimated by a first method and one or more second methods. The second methods are used to decide whether to use the number of bits estimated by the first method as the final encoding rate, or whether to supplement the estimated number of bits by adding an encoding rate correction. As a result, the encoding rate is not supplemented unnecessarily and the encoding efficiency is improved.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: May 14, 2013
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Takahiro Yamasaki
  • Patent number: 8428124
    Abstract: A moving picture encoding apparatus divides a moving picture signal into key frames and non-key frames, encodes the key frames, predicts the non-key frames from the encoded key frames, determines an encoding rate for each non-key frame, encodes each non-key frame, and outputs an error-correcting code at the encoding rate as encoded data of the non-key frame. To determine the encoding rate, parameters related to the likelihood of prediction errors are calculated by at least two different methods for each non-key frame, the parameters are compared, one of the parameters is selected, and the encoding rate is calculated from the selected parameter. The selective use of differently calculated parameters enables an efficient encoding rate to be calculated for each non-key frame and reduces the transmission of encoded data that the decoder does not need or cannot decode.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: April 23, 2013
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Takahiro Yamasaki
  • Patent number: 8419360
    Abstract: A multi-blade centrifugal fan for preventing circular flows in the end portions of an impeller in the axial direction is provided in a simple structure. The multi-blade centrifugal fan is formed of a fan casing of a scroll type and a multi-blade centrifugal impeller. The fan casing has a bellmouth which becomes an air intake. The multi-blade centrifugal impeller has a number of annularly arranged blades inside the fan casing. The centrifugal impeller draws in air through the intake, which faces the bellmouth, and blows out the air in the centrifugal direction through the blades. A retainer ring is provided in an outer peripheral end portion of the impeller. A cylindrical body is integrally provided in such a manner as to extend from the outer end of the retainer ring, so that circular flows toward the intake side are prevented in the end portions of the impeller.
    Type: Grant
    Filed: November 24, 2006
    Date of Patent: April 16, 2013
    Assignee: Daikin Industries, Ltd.
    Inventors: Takahiro Yamasaki, Akira Komatsu, Tooru Iwata