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).
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Publication number: 20200124632Abstract: 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: ApplicationFiled: July 3, 2018Publication date: April 23, 2020Inventors: Kenichi HIRAMI, Hajime YAMAZAKI, Hidemi KOIKE, Eriko OTSU
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Publication number: 20200110706Abstract: 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: ApplicationFiled: December 5, 2019Publication date: April 9, 2020Inventors: Hirokazu TAKEUCHI, Takahiro MIOMO, Hiroyuki YAMAGUCHI, Hajime YAMAZAKI
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Publication number: 20190346470Abstract: 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: ApplicationFiled: July 24, 2019Publication date: November 14, 2019Inventors: Akihisa MAKINO, Hajime YAMAZAKI, Keiko YOSHIKAWA, Manabu ANDO, Masahiko IIJIMA
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Patent number: 10416179Abstract: 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: GrantFiled: June 7, 2017Date of Patent: September 17, 2019Assignee: Hitachi High-Technologies CorporationInventors: Akihisa Makino, Hajime Yamazaki, Keiko Yoshikawa, Manabu Ando, Masahiko Iijima
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Patent number: 10268399Abstract: 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: GrantFiled: February 28, 2017Date of Patent: April 23, 2019Assignee: TOSHIBA MEMORY CORPORATIONInventors: Akihiro Nagatani, Takahiro Miomo, Hajime Yamazaki, Shinji Yonezawa, Mitsunori Tadokoro
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Publication number: 20180275155Abstract: 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: ApplicationFiled: December 2, 2016Publication date: September 27, 2018Inventors: Yuya MATSUOKA, Akihisa MAKINO, Hajime YAMAZAKI
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Publication number: 20180276129Abstract: 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: ApplicationFiled: January 22, 2018Publication date: September 27, 2018Inventors: Hirokazu TAKEUCHI, Takahiro MIOMO, Hiroyuki YAMAGUCHI, Hajime YAMAZAKI
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Publication number: 20180267744Abstract: 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: ApplicationFiled: September 5, 2017Publication date: September 20, 2018Applicant: TOSHIBA MEMORY CORPORATIONInventors: Takahiro MIOMO, Prashob Ramachandran NAIR, Hajime YAMAZAKI, Makoto DOMON, Yasunori NAKAMURA
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Publication number: 20180267715Abstract: 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: ApplicationFiled: March 8, 2018Publication date: September 20, 2018Applicant: Toshiba Memory CorporationInventors: Hiroki Matsudaira, Norio Aoyama, Ryoichi Kato, Taku Ooneda, Takashi Hirao, Aurelien Nam Phong Tran, Hiroyuki Yamaguchi, Takuya Suzuki, Hajime Yamazaki
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Publication number: 20180081574Abstract: 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: ApplicationFiled: February 28, 2017Publication date: March 22, 2018Applicant: TOSHIBA MEMORY CORPORATIONInventors: Akihiro NAGATANI, Takahiro MIOMO, Hajime YAMAZAKI, Shinji YONEZAWA, Mitsunori TADOKORO
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Publication number: 20170269113Abstract: 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: ApplicationFiled: June 7, 2017Publication date: September 21, 2017Inventors: Akihisa MAKINO, Hajime YAMAZAKI, Keiko YOSHIKAWA, Manabu ANDO, Masahiko IIJIMA
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Patent number: 9696329Abstract: 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: GrantFiled: May 24, 2013Date of Patent: July 4, 2017Assignee: Hitachi High-Technologies CorporationInventors: Akihisa Makino, Hajime Yamazaki, Keiko Yoshikawa, Manabu Ando, Masahiko Iijima
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Patent number: 9664678Abstract: 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: GrantFiled: September 3, 2012Date of Patent: May 30, 2017Assignee: Hitachi High-Technologies CorporationInventors: Takeshi Yogi, Sakuichiro Adachi, Tomonori Mimura, Hajime Yamazaki
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Publication number: 20170128308Abstract: [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: ApplicationFiled: July 21, 2015Publication date: May 11, 2017Inventors: Junichi NAKAMURA, Yoshiyuki KAWASAKI, Hajime YAMAZAKI, Masato TANIMURA, Morimasa YOKOTA
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Patent number: 9645160Abstract: 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: GrantFiled: May 9, 2012Date of Patent: May 9, 2017Assignee: Hitachi High-Technologies CorporationInventors: Sakuichiro Adachi, Tomonori Mimura, Hajime Yamazaki, Masaki Shiba
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Patent number: 9575082Abstract: 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: GrantFiled: June 5, 2014Date of Patent: February 21, 2017Assignee: Hitachi High-Technologies CorporationInventors: Sakuichiro Adachi, Hajime Yamazaki, Masahiko Iijima, Shigeki Matsubara
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Patent number: 9557264Abstract: 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: GrantFiled: June 14, 2013Date of Patent: January 31, 2017Assignee: Hitachi High-Technologies CorporationInventors: Sakuichiro Adachi, Hajime Yamazaki, Masahiko Iijima
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Patent number: 9459271Abstract: 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: GrantFiled: March 31, 2014Date of Patent: October 4, 2016Assignee: Hitachi High-Technologies CorporationInventors: Takeshi Yogi, Sakuichiro Adachi, Hajime Yamazaki
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Publication number: 20160077119Abstract: 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: ApplicationFiled: June 5, 2014Publication date: March 17, 2016Inventors: Sakuichiro ADACHI, Hajime YAMAZAKI, Masahiko IIJIMA, Shigeki MATSUBARA
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Publication number: 20160025758Abstract: 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: ApplicationFiled: March 31, 2014Publication date: January 28, 2016Applicant: Hitachi High-Technologies CorporationInventors: Takeshi YOGI, Sakuichiro ADACHI, Hajime YAMAZAKI