Patents by Inventor Masahito Kakuno
Masahito Kakuno 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: 20240410821Abstract: An object of the present disclosure is to provide a technique in which, when measuring a biological sample stored in a container to which a label is attached and separated into a plurality of component regions, a target portion that is a measurement target can be accurately specified without using a large-sized imaging mechanism. In a biological sample measuring device according to the present disclosure, a mirror is disposed on an optical path from a surface light source to an area camera, so that light transmitted through a biological sample is guided into the area camera while being refracted, and a light-absorbing material is disposed at a position where reflected light reflected and returned toward the biological sample is blocked (see FIG. 1).Type: ApplicationFiled: September 22, 2022Publication date: December 12, 2024Inventors: Mayu SAO, Tomoto KAWAMURA, Masahito KAKUNO
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Publication number: 20240202953Abstract: An object of the present invention is to provide a technique capable of accurately specifying a target portion as a measurement target without using a large imaging mechanism when measuring a biological sample separated into a plurality of component regions. A biological sample measurement device according to the present disclosure generates a captured image of a biological sample by using two wavelength components emitted from a light source, and compares the captured images generated by using two or more exposure times or gains at the time of imaging to select the captured image that can most clearly identify a measurement target portion in the biological sample (see FIG. 1).Type: ApplicationFiled: April 6, 2022Publication date: June 20, 2024Inventors: Mayu SAO, Yong Lee, Tomoto Kawamura, Masahito Kakuno, Fumiyasu Sato
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Patent number: 11906346Abstract: A liquid level detection device capable of accurately detecting an interface inside a container has an irradiation unit which irradiates a side surface of a sample container containing a sample having layers with light. A light receiving unit receives transmitted light from the sample container and an analysis unit acquires the interfaces between the layers from the received amount of the transmitted light. The sample container is moved vertically relative to the irradiation unit and the light receiving unit by a first drive and is moved in the circumferential direction relative to the irradiation unit and the light receiving unit by a second drive. The second drive is controlled so that the light receiving unit receives the transmitted light at first and second irradiation angles, and the interfaces between the layers are acquired on the basis of the received amounts of transmitted light at the first and second irradiation angles.Type: GrantFiled: August 22, 2019Date of Patent: February 20, 2024Assignee: HITACHI HIGH-TECH CORPORATIONInventors: Fumiyasu Sato, Masahito Kakuno, Nobuyoshi Shimane
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Patent number: 11415587Abstract: It is possible to realize a sample container transfer device capable of handling a plurality of racks in which a sample container can be efficiently transferred from a preprocessing system to a carrier used in an analysis system and can be transferred to a plurality of kinds of carriers of the analysis system. A plurality of kinds of racks A and racks B is held by an empty rack holding area 330. The racks A or the racks B can be used for conveyance of specimen containers according to the application of a specimen. After a fixed number of specimen containers separated by a separation mechanism 301 according to an application are collected by stoppers 303a and 303b, the specimen containers are conveyed to a transfer start position 309 to be transferred from a holder to a rack. Accordingly, it is possible to suppress an occurrence of a state in which the rack does not have a part where no specimen is mounted.Type: GrantFiled: February 27, 2018Date of Patent: August 16, 2022Assignee: Hitachi High-Tech CorporationInventors: Taro Umeki, Kouji Kamoshida, Masahito Kakuno
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Publication number: 20210231483Abstract: A liquid level detection device capable of accurately detecting an interface inside a container has an irradiation unit which irradiates a side surface of a sample container containing a sample having layers with light. A light receiving unit receives transmitted light from the sample container and an analysis unit acquires the interfaces between the layers from the received amount of the transmitted light. The sample container is moved vertically relative to the irradiation unit and the light receiving unit by a first drive and is moved in the circumferential direction relative to the irradiation unit and the light receiving unit by a second drive. The second drive is controlled so that the light receiving unit receives the transmitted light at first and second irradiation angles, and the interfaces between the layers are acquired on the basis of the received amounts of transmitted light at the first and second irradiation angles.Type: ApplicationFiled: August 22, 2019Publication date: July 29, 2021Inventors: Fumiyasu SATO, Masahito KAKUNO, Nobuyoshi SHIMANE
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Patent number: 10768186Abstract: In medical analysis devices and automatic specimen examination systems, the specimen conveyance mechanism is constituted by a plurality of belt lines. During installation or maintenance of the specimen conveyance mechanism, it is necessary to confirm the existence of steps at the joints of these belt lines and the parallelism of the conveyance line. According to the present invention, it is possible to lighten the burden of this work with a test tube type or conveyance holder type inspection device provided with a sensor and battery for operation. Also, even when an operator cannot visually confirm the conveyance line from outside, it is possible to confirm the state of the conveyance line.Type: GrantFiled: February 1, 2016Date of Patent: September 8, 2020Assignee: Hitachi High-Tech CorporationInventors: Eiji Takaya, Hideo Enoki, Shigeki Yamaguchi, Koichi Obari, Yoshiaki Shishido, Masahito Kakuno
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Publication number: 20200025781Abstract: It is possible to realize a sample container transfer device capable of handling a plurality of racks in which a sample container can be efficiently transferred from a preprocessing system to a carrier used in an analysis system and can be transferred to a plurality of kinds of carriers of the analysis system. A plurality of kinds of racks A and racks B is held by an empty rack holding area 330. The racks A or the racks B can be used for conveyance of specimen containers according to the application of a specimen. After a fixed number of specimen containers separated by a separation mechanism 301 according to an application are collected by stoppers 303a and 303b, the specimen containers are conveyed to a transfer start position 309 to be transferred from a holder to a rack. Accordingly, it is possible to suppress an occurrence of a state in which the rack does not have a part where no specimen is mounted.Type: ApplicationFiled: February 27, 2018Publication date: January 23, 2020Inventors: Taro UMEKI, Kouji KAMOSHIDA, Masahito KAKUNO
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Publication number: 20180052183Abstract: In medical analysis devices and automatic specimen examination systems, the specimen conveyance mechanism is constituted by a plurality of belt lines. During installation or maintenance of the specimen conveyance mechanism, it is necessary to confirm the existence of steps at the joints of these belt lines and the parallelism of the conveyance line. According to the present invention, it is possible to lighten the burden of this work with a test tube type or conveyance holder type inspection device provided with a sensor and battery for operation. Also, even when an operator cannot visually confirm the conveyance line from outside, it is possible to confirm the state of the conveyance line.Type: ApplicationFiled: February 1, 2016Publication date: February 22, 2018Inventors: Eiji TAKAYA, Hideo ENOKI, Shigeki YAMAGUCHI, Koichi OBARI, Yoshiaki SHISHIDO, Masahito KAKUNO
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Patent number: 8221702Abstract: A sample dispensing apparatus and method for dispensing a sample such as blood and urine collected for inspection from one vessel to another are provided wherein the remaining quantity of a primary sample can be reduced without disturbing the primary sample. When clogging by a separating agent is detected during suction of a sample such as blood and urine collected for inspection, the sample dispensing apparatus performs raising of an aliquot head such that an opening at the free end of a nozzle tip does not come out of the sample liquid surface to dissolve clogging; sucking of the sample under the residual pressure; and additionally sucking of a fixed quantity of the sample to reduce the remaining quantity of the sample.Type: GrantFiled: June 20, 2008Date of Patent: July 17, 2012Assignee: Hitachi-High Technologies CorporationInventors: Akihiro Shimoda, Masahito Kakuno, Eiji Takaya, Junichi Oizumi
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Patent number: 7823469Abstract: A sample dispensing apparatus dispenses a sample from a container accommodating a sample such as blood or urea sampled for checking. This sample dispensing apparatus can prevent internal contamination of the apparatus due to dripping of the sample and abnormal sucking operations caused by drainage, condensation and fixing of the sample. The sample dispensing apparatus according to the present invention comprises a dispensing device for dispensing a sucked sample, a dispensing head provided in the dispensing device, and a disposable nozzle chip dismountably set on the dispensing head. In this apparatus, dispensing of a sample to child sample containers is performed exchanging the child sample containers with new ones. When the state, in which dispensing to the child container cannot be carried out, is continued for a prespecified period of time, the nozzle chip is automatically released from the dispensing head.Type: GrantFiled: December 27, 2007Date of Patent: November 2, 2010Assignee: Hitachi High-Technologies CorporationInventors: Eiji Takaya, Masahito Kakuno, Satoshi Hagiya, Junichi Oizumi, Nobuo Suzuki
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Publication number: 20080317639Abstract: A sample dispensing apparatus and method for dispensing a sample such as blood and urine collected for inspection from one vessel to another are provided wherein the remaining quantity of a primary sample can be reduced without disturbing the primary sample. When clogging by a separating agent is detected during suction of a sample such as blood and urine collected for inspection, the sample dispensing apparatus performs raising of an aliquot head such that an opening at the free end of a nozzle tip does not come out of the sample liquid surface to dissolve clogging; sucking of the sample under the residual pressure; and additionally sucking of a fixed quantity of the sample to reduce the remaining quantity of the sample.Type: ApplicationFiled: June 20, 2008Publication date: December 25, 2008Inventors: Akihiro SHIMODA, Masahito KAKUNO, Eiji TAKAYA, Junichi OIZUMI
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Publication number: 20080156118Abstract: A sample dispensing apparatus dispenses a sample from a container accommodating a sample such as blood or urea sampled for checking. This sample dispensing apparatus can prevent internal contamination of the apparatus due to dripping of the sample and abnormal sucking operations caused by drainage, condensation and fixing of the sample. The sample dispensing apparatus according to the present invention comprises a dispensing device for dispensing a sucked sample, a dispensing head provided in the dispensing device, and a disposable nozzle chip dismountably set on the dispensing head. In this apparatus, dispensing of a sample to child sample containers is performed exchanging the child sample containers with new ones. When the state, in which dispensing to the child container cannot be carried out, is continued for a prespecified period of time, the nozzle chip is automatically released from the dispensing head.Type: ApplicationFiled: December 27, 2007Publication date: July 3, 2008Inventors: Eiji TAKAYA, Masahito Kakuno, Satoshi Hagiya, Junichi Oizumi, Nobuo Suzuki