Patents by Inventor Hajime Yamazaki

Hajime Yamazaki 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: 20200124632
    Abstract: Uneven wear causes degradation of the individual parts of a syringe pump. Specifically, a seal piece composed of a soft material is easily damaged by uneven wear. To solve this problem, an automatic analysis device has a syringe pump that feeds and aspirates a liquid into and from a dispensing unit. The syringe pump has a syringe tube that stores a liquid, a plunger that moves up and down in the syringe tube, a plunger upper pressing component that contacts the plunger, a motive force transmitting part that transmits motive force to the plunger via the plunger upper pressing component, and a plunger lower pressing component that contacts the motive force transmitting part. The plunger upper pressing component and the motive force transmitting part make point contact with each other, and the motive force transmitting part and the plunger lower pressing component make point contact with each other.
    Type: Application
    Filed: July 3, 2018
    Publication date: April 23, 2020
    Inventors: Kenichi HIRAMI, Hajime YAMAZAKI, Hidemi KOIKE, Eriko OTSU
  • Publication number: 20200110706
    Abstract: A memory system includes a memory and a memory controller. The memory includes first and second parallel operation elements, each including a plurality of first and second storage regions, respectively, and first and second buffers, respectively. The memory controller performs operations on the memory based on first and second group information. The first group information defines first groups, each first group including one first storage region and one second storage region, and each second group including at least two first groups. The memory controller, in response to a host command targeting a first storage region, (i) acquires first data from the first buffer, and thereafter (ii) causes the memory to read out second data to the first buffer. The first storage region storing the first data and the second storage region storing the second data belong to different first groups and to the same second group.
    Type: Application
    Filed: December 5, 2019
    Publication date: April 9, 2020
    Inventors: Hirokazu TAKEUCHI, Takahiro MIOMO, Hiroyuki YAMAGUCHI, Hajime YAMAZAKI
  • Publication number: 20190346470
    Abstract: A high-throughput automatic analyzer integrates a biochemical analysis section and a blood coagulation analysis section. The analyzer is capable of achieving a reduction in size, system cost, and lifecycle cost. The automatic analyzer includes: a reaction disk; a first reagent dispensing mechanism that dispenses a reagent to reaction cells on the reaction disk; a photometer that irradiates a reaction solution in the reaction cell with light; a reaction cell cleaning mechanism; a reaction vessel supply unit that supplies a disposable reaction vessel for mixing and reacting a sample and a reagent with each other; a second reagent dispensing mechanism that dispenses a reagent to the disposable reaction vessel; a blood coagulation time measuring section that irradiates a reaction solution in the disposable reaction vessel with light to detect transmitted or scattered light; and a sample dispensing mechanism that dispenses a sample to the reaction cell and the disposable reaction vessel.
    Type: Application
    Filed: July 24, 2019
    Publication date: November 14, 2019
    Inventors: Akihisa MAKINO, Hajime YAMAZAKI, Keiko YOSHIKAWA, Manabu ANDO, Masahiko IIJIMA
  • Patent number: 10416179
    Abstract: A high-throughput automatic analyzer integrates a biochemical analysis section and a blood coagulation analysis section. The analyzer is capable of achieving a reduction in size, system cost, and lifecycle cost. The automatic analyzer includes: a reaction disk; a first reagent dispensing mechanism that dispenses a reagent to reaction cells on the reaction disk; a photometer that irradiates a reaction solution in the reaction cell with light; a reaction cell cleaning mechanism; a reaction vessel supply unit that supplies a disposable reaction vessel for mixing and reacting a sample and a reagent with each other; a second reagent dispensing mechanism that dispenses a reagent to the disposable reaction vessel; a blood coagulation time measuring section that irradiates a reaction solution in the disposable reaction vessel with light to detect transmitted or scattered light; and a sample dispensing mechanism that dispenses a sample to the reaction cell and the disposable reaction vessel.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: September 17, 2019
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Akihisa Makino, Hajime Yamazaki, Keiko Yoshikawa, Manabu Ando, Masahiko Iijima
  • Patent number: 10268399
    Abstract: According to one embodiment, a memory system includes a first memory including a message queue having first to nth addresses (n?2, n is natural number), a first pointer showing one of the first to nth addresses, and a second pointer showing one of the first to nth addresses, a monitor unit which detects whether the first and second pointers show the first address, and a processing unit which changes an address shown by the first pointer from the first address to an ith address (n?i?2, i is natural number) when the first and second pointers show the first address. An address shown by the second pointer is incremented from the first address to a (j+1)th address (j?1, j is natural number) when first to jth messages are queued in the first to jth addresses.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: April 23, 2019
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Akihiro Nagatani, Takahiro Miomo, Hajime Yamazaki, Shinji Yonezawa, Mitsunori Tadokoro
  • Publication number: 20180275155
    Abstract: An automated analyzer has a reaction disk on which a plurality of reaction vessels capable of holding sample and reagent mixtures can be placed, a first cover for covering at least a portion of the area above the reaction disk, a second cover that can be opened and closed independently from the first cover, at least one sensor for monitoring the opening and closing of the first cover, and a control unit for monitoring a signal from the sensor and carrying out control such that if the first cover has not been opened and closed during the period until a new analysis operation is started, a pre-analysis cleaning operation, blank measurement operation, or both, are skipped.
    Type: Application
    Filed: December 2, 2016
    Publication date: September 27, 2018
    Inventors: Yuya MATSUOKA, Akihisa MAKINO, Hajime YAMAZAKI
  • Publication number: 20180276129
    Abstract: A memory system includes a memory and a memory controller. The memory includes first and second parallel operation elements, each including a plurality of first and second storage regions, respectively, and first and second buffers, respectively. The memory controller performs operations on the memory based on first and second group information. The first group information defines first groups, each first group including one first storage region and one second storage region, and each second group including at least two first groups. The memory controller, in response to a host command targeting a first storage region, (i) acquires first data from the first buffer, and thereafter (ii) causes the memory to read out second data to the first buffer. The first storage region storing the first data and the second storage region storing the second data belong to different first groups and to the same second group.
    Type: Application
    Filed: January 22, 2018
    Publication date: September 27, 2018
    Inventors: Hirokazu TAKEUCHI, Takahiro MIOMO, Hiroyuki YAMAGUCHI, Hajime YAMAZAKI
  • Publication number: 20180267744
    Abstract: A memory system includes a first nonvolatile memory, a first processor, and a second processor. The first processor sets a first assignment amount. The second processor performs access to the first nonvolatile memory, calculates a consumed amount which is an amount according to an operation time of the first nonvolatile memory in the access, and transmits a notification to the first processor when the consumed amount reaches the first assignment amount.
    Type: Application
    Filed: September 5, 2017
    Publication date: September 20, 2018
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Takahiro MIOMO, Prashob Ramachandran NAIR, Hajime YAMAZAKI, Makoto DOMON, Yasunori NAKAMURA
  • Publication number: 20180267715
    Abstract: According to one embodiment, the memory system includes a nonvolatile memory including a plurality of blocks, and a controller circuit that controls execution of a data writing process and a garbage collection process. Each of the blocks is an unit of erasure. The data writing process includes a process of writing user data into the nonvolatile memory in accordance with a request from an external member. The garbage collection process includes a process of moving valid data in at least a first block into a second block among the blocks and invalidating the valid data in the first block to be erasable. Upon receiving a data write request from the external member, the controller circuit controls a length of a waiting time to be provided before or after the data writing process within a period from receiving the write request to returning a response to the external member.
    Type: Application
    Filed: March 8, 2018
    Publication date: September 20, 2018
    Applicant: Toshiba Memory Corporation
    Inventors: Hiroki Matsudaira, Norio Aoyama, Ryoichi Kato, Taku Ooneda, Takashi Hirao, Aurelien Nam Phong Tran, Hiroyuki Yamaguchi, Takuya Suzuki, Hajime Yamazaki
  • Publication number: 20180081574
    Abstract: According to one embodiment, a memory system includes a first memory including a message queue having first to nth addresses (n?2, n is natural number), a first pointer showing one of the first to nth addresses, and a second pointer showing one of the first to nth addresses, a monitor unit which detects whether the first and second pointers show the first address, and a processing unit which changes an address shown by the first pointer from the first address to an ith address (n?i?2, i is natural number) when the first and second pointers show the first address. An address shown by the second pointer is incremented from the first address to a (j+1)th address (j?1, j is natural number) when first to jth messages are queued in the first to jth addresses.
    Type: Application
    Filed: February 28, 2017
    Publication date: March 22, 2018
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Akihiro NAGATANI, Takahiro MIOMO, Hajime YAMAZAKI, Shinji YONEZAWA, Mitsunori TADOKORO
  • Publication number: 20170269113
    Abstract: A high-throughput automatic analyzer integrates a biochemical analysis section and a blood coagulation analysis section. The analyzer is capable of achieving a reduction in size, system cost, and lifecycle cost. The automatic analyzer includes: a reaction disk; a first reagent dispensing mechanism that dispenses a reagent to reaction cells on the reaction disk; a photometer that irradiates a reaction solution in the reaction cell with light; a reaction cell cleaning mechanism; a reaction vessel supply unit that supplies a disposable reaction vessel for mixing and reacting a sample and a reagent with each other; a second reagent dispensing mechanism that dispenses a reagent to the disposable reaction vessel; a blood coagulation time measuring section that irradiates a reaction solution in the disposable reaction vessel with light to detect transmitted or scattered light; and a sample dispensing mechanism that dispenses a sample to the reaction cell and the disposable reaction vessel.
    Type: Application
    Filed: June 7, 2017
    Publication date: September 21, 2017
    Inventors: Akihisa MAKINO, Hajime YAMAZAKI, Keiko YOSHIKAWA, Manabu ANDO, Masahiko IIJIMA
  • Patent number: 9696329
    Abstract: A high-throughput automatic analyzer integrates a biochemical analysis section and a blood coagulation analysis section. The analyzer is capable of achieving a reduction in size, system cost, and lifecycle cost. The automatic analyzer includes: a reaction disk; a first reagent dispensing mechanism that dispenses a reagent to reaction cells on the reaction disk; a photometer that irradiates a reaction solution in the reaction cell with light; a reaction cell cleaning mechanism; a reaction vessel supply unit that supplies a disposable reaction vessel for mixing and reacting a sample and a reagent with each other; a second reagent dispensing mechanism that dispenses a reagent to the disposable reaction vessel; a blood coagulation time measuring section that irradiates a reaction solution in the disposable reaction vessel with light to detect transmitted or scattered light; and a sample dispensing mechanism that dispenses a sample to the reaction cell and the disposable reaction vessel.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: July 4, 2017
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Akihisa Makino, Hajime Yamazaki, Keiko Yoshikawa, Manabu Ando, Masahiko Iijima
  • Patent number: 9664678
    Abstract: An analyzer provides conditions suitable for a reagent for performing latex immunoassay with a high sensitivity using a method of measuring scattered light. Irradiation light having a wavelength in the range of 0.65 to 0.75 ?m is used, and scattered light generated from a reaction solution is received at a light-receiving angle of 15° to 35° with respect to the irradiation direction during the rotational movement of the reaction container. The reagent contains latex particles the average peak particle diameter of which ranges from 0.3 ?m to 0.43 ?m and to which antibodies are sensitized. The reaction solution contains latex particles at a concentration at which the absorbance to irradiation light having a wavelength of 0.7 ?m is 0.25 abs to 1.10 abs, and a change in the amount of scattered light caused by the aggregation of the latex particles through antigens in a sample is measured and quantified.
    Type: Grant
    Filed: September 3, 2012
    Date of Patent: May 30, 2017
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Takeshi Yogi, Sakuichiro Adachi, Tomonori Mimura, Hajime Yamazaki
  • Publication number: 20170128308
    Abstract: [Problem] To provide a system for installing and storing a traction operating table for lower limb joint surgery, the system enabling a traction operating table for lower limb joint surgery to be more easily installed on an operating table main body. [Solution] A traction operating table for lower limb joint surgery according to an aspect of the present invention comprises: a main frame part provided with a main frame having two rod-shaped members; a position adjusting part provided with a moving frame that is movable, and a foot fixing portion for fixing a foot; and a supporting leg part joined to the position adjusting part to support the main frame part, and capable of adjusting the incline of the main frame part.
    Type: Application
    Filed: July 21, 2015
    Publication date: May 11, 2017
    Inventors: Junichi NAKAMURA, Yoshiyuki KAWASAKI, Hajime YAMAZAKI, Masato TANIMURA, Morimasa YOKOTA
  • Patent number: 9645160
    Abstract: The automatic analysis device measures time sequential data on a scattered light amount as reaction process data, and quantitatively determines the concentration of an analyte from a change in light amount. The automatic analysis device has a function of selecting reaction process data to be used for quantitative determination from the reaction process data obtained by measurement using a plurality of light receivers at different angles. As a result of using this function, data is selected from the reaction process data obtained by measurement using the plurality of light receivers at different angles in accordance with the concentration of the analyte and whether the priority is given to high sensitivity in the case where sensitivity is prioritized or a dynamic range, and the result of the quantitative determination is displayed.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: May 9, 2017
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Sakuichiro Adachi, Tomonori Mimura, Hajime Yamazaki, Masaki Shiba
  • Patent number: 9575082
    Abstract: The automatic analysis device includes an analysis unit that corrects, based on a measured value at the time of a first light amount measurement with water dispensed in the reaction cell before the sample is dispensed therein; a measured value at the time of a second light amount measurement after the sample and a preprocessing reagent are dispensed into the reaction cell; a liquid amount in the reaction cell at the time of the second light amount measurement; and a liquid amount in the reaction cell at the time of a third light amount measurement after the reaction reagent has been dispensed into the reaction cell and before the reaction reagent and the substance to be measured react with each other.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: February 21, 2017
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Sakuichiro Adachi, Hajime Yamazaki, Masahiko Iijima, Shigeki Matsubara
  • Patent number: 9557264
    Abstract: To enable determination of if there is an influence of foreign-body reactions on the result of quantitative determination conducted with a scattered light measurement method. Proposed is an automatic analysis device including a light source configured to irradiate a reaction solution with light, a plurality of light receivers configured to receive scattered light generated from the reaction solution at different light-receiving angles, a first data processing unit configured to process reaction process data measured by one of the light receivers to quantitatively determine a concentration of a substance in the reaction solution, and a second data processing unit configured to determine if the quantitative determination of the concentration of the substance has been performed normally on the basis of a ratio of a plurality of computed values, the plurality of computed values having been calculated from a plurality of pieces of reaction process data measured by the respective light receivers.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: January 31, 2017
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Sakuichiro Adachi, Hajime Yamazaki, Masahiko Iijima
  • Patent number: 9459271
    Abstract: To reduce the influence of air bubbles and dust in measuring scattered light beams on an automatic analyzer. A light source emits a light beam with a first wavelength 18a on a shorter wavelength side and a light beam with a second wavelength 18b on a longer wavelength side, and then, transmitted light beams 19a and 19b and scattered light beams 21a and 21b are received. Noise is estimated from the ratio between the intensities of the transmitted light beams with the first wavelength and the second wavelength and a change in the amount of the scattered light beam with the second wavelength. Then, the estimated noise is subtracted from a change in the amount of the scattered light beam with the first wavelength, so that noise due to air bubbles and dust is reduced.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: October 4, 2016
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Takeshi Yogi, Sakuichiro Adachi, Hajime Yamazaki
  • Publication number: 20160077119
    Abstract: The automatic analysis device includes an analysis unit that corrects, based on a measured value at the time of a first light amount measurement with water dispensed in the reaction cell before the sample is dispensed therein; a measured value at the time of a second light amount measurement after the sample and a preprocessing reagent are dispensed into the reaction cell; a liquid amount in the reaction cell at the time of the second light amount measurement; and a liquid amount in the reaction cell at the time of a third light amount measurement after the reaction reagent has been dispensed into the reaction cell and before the reaction reagent and the substance to be measured react with each other.
    Type: Application
    Filed: June 5, 2014
    Publication date: March 17, 2016
    Inventors: Sakuichiro ADACHI, Hajime YAMAZAKI, Masahiko IIJIMA, Shigeki MATSUBARA
  • Publication number: 20160025758
    Abstract: To reduce the influence of air bubbles and dust in measuring scattered light beams on an automatic analyzer. A light source emits a light beam with a first wavelength 18a on a shorter wavelength side and a light beam with a second wavelength 18b on a longer wavelength side, and then, transmitted light beams 19a and 19b and scattered light beams 21a and 21b are received. Noise is estimated from the ratio between the intensities of the transmitted light beams with the first wavelength and the second wavelength and a change in the amount of the scattered light beam with the second wavelength. Then, the estimated noise is subtracted from a change in the amount of the scattered light beam with the first wavelength, so that noise due to air bubbles and dust is reduced.
    Type: Application
    Filed: March 31, 2014
    Publication date: January 28, 2016
    Applicant: Hitachi High-Technologies Corporation
    Inventors: Takeshi YOGI, Sakuichiro ADACHI, Hajime YAMAZAKI