Patents by Inventor Junichi Takami

Junichi Takami 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: 11874643
    Abstract: A determination apparatus includes circuitry to receive operation information corresponding to an action being performed by a machine to be diagnosed and a detection signal of a physical quantity that changes according to the action of the machine; take out, from the detection signal, an operation detection signal indicating that the machine is operating, based on the operation information; extract feature information of the operation detection signal; select, from the feature information, particular feature information to be compared with a plurality of reference feature information; and determine a machining section of the machine in the feature information, based on the plurality of reference feature information and the particular feature information.
    Type: Grant
    Filed: November 23, 2021
    Date of Patent: January 16, 2024
    Assignee: Ricoh Company, Ltd.
    Inventors: Shuichi Ohsawa, Junichi Takami, Tomoki Umezawa, Takafumi Horio
  • Publication number: 20230103413
    Abstract: An information processing apparatus includes a detection result acquisition unit configured to acquire a detection result of a physical quantity that changes as a movable body moves while being in contact with a subject; an image data acquisition unit configured to acquire image data of the subject; and a display control unit configured to control a display to display likelihood information indicating a likelihood of abnormality of the subject and the image data in association with each other. The likelihood is determined based on the detection result.
    Type: Application
    Filed: March 5, 2021
    Publication date: April 6, 2023
    Inventors: Gakushi MIYARA, Tomoki UMEZAWA, Junichi TAKAMI, Yuichi NODA, Takafumi HORIO, Yu TESHIMA
  • Publication number: 20230091235
    Abstract: An information processing apparatus includes a detection result acquisition unit to acquire, for each of processes performed on a plurality of workpieces, a detection result of a physical quantity that changes according to processing applied to a workpiece; an identification information acquisition unit to acquire process identification information identifying one of the processes performed on the same workpiece and workpiece identification information identifying one of the workpieces subjected to the same process; and a display control unit to display, on a display, the process identification information and the workpiece identification information; and display, on the display, abnormality likelihood information indicating likelihood of abnormality, determined based on the detection result, of the particular process or the particular workpiece, in association with at least one of the process identification information and the workpiece identification information.
    Type: Application
    Filed: March 10, 2021
    Publication date: March 23, 2023
    Inventors: Satoshi HAGIWARA, Junichi TAKAMI, Yu TESHIMA, Tomoki UMEZAWA, Gakushi MIYARA
  • Publication number: 20230037756
    Abstract: A diagnostic apparatus includes circuitry to determine a process number based on operation information that changes in accordance with an operation of a machine being a subject of diagnosis, and determine a state of the machine using corresponding one of a plurality of model parameters corresponding to the determined process number and state information that changes in accordance with the state of the machine. The process number indicates an order of a particular process in a plurality of processes executed by the machine.
    Type: Application
    Filed: July 11, 2022
    Publication date: February 9, 2023
    Applicant: Ricoh Company, Ltd.
    Inventors: Akihito AIBA, Junichi TAKAMI, Yuichi NODA, Satoshi HAGIWARA
  • Publication number: 20220390271
    Abstract: A diagnostic device includes a reception unit and a determination unit. The reception unit is configured to receive context information and sensing information. The context information corresponds to a certain operation of a target item that constitutes a target device. The context information is a piece of a plurality of pieces of context information each describing an operation of the target item determined depending on a type of operation of the target device. The sensing information is on a physical quantity that varies in accordance with the operation of the target item. The determination unit is configured to determine a state of the target item based on the sensing information detected while the target item is performing the certain operation, and based on a model corresponding to the received context information. The model is a model of one or more models respectively defined for one or more pieces of the context information.
    Type: Application
    Filed: August 12, 2022
    Publication date: December 8, 2022
    Applicant: Ricoh Company, Ltd.
    Inventors: Hiroaki FUKUDA, Yasunobu SHIRATA, Yohsuke MURAMOTO, Junichi TAKAMI
  • Patent number: 11467024
    Abstract: A diagnostic device includes a reception unit and a determination unit. The reception unit is configured to receive context information and sensing information. The context information corresponds to a certain operation of a target item that constitutes a target device. The context information is a piece of a plurality of pieces of context information each describing an operation of the target item determined depending on a type of operation of the target device. The sensing information is on a physical quantity that varies in accordance with the operation of the target item. The determination unit is configured to determine a state of the target item based on the sensing information detected while the target item is performing the certain operation, and based on a model corresponding to the received context information. The model is a model of one or more models respectively defined for one or more pieces of the context information.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: October 11, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventors: Hiroaki Fukuda, Yasunobu Shirata, Yohsuke Muramoto, Junichi Takami
  • Publication number: 20220171365
    Abstract: A determination apparatus includes circuitry to receive operation information corresponding to an action being performed by a machine to be diagnosed and a detection signal of a physical quantity that changes according to the action of the machine; take out, from the detection signal, an operation detection signal indicating that the machine is operating, based on the operation information; extract feature information of the operation detection signal; select, from the feature information, particular feature information to be compared with a plurality of reference feature information; and determine a machining section of the machine in the feature information, based on the plurality of reference feature information and the particular feature information.
    Type: Application
    Filed: November 23, 2021
    Publication date: June 2, 2022
    Applicant: Ricoh Company Ltd.
    Inventors: Shuichi OHSAWA, Junichi TAKAMI, Tomoki UMEZAWA, Takafumi HORIO
  • Patent number: 11221608
    Abstract: A device includes: a first acquiring unit to acquire context information corresponding to running operation among pieces of context information; a second acquiring unit to acquire detection information output from a detecting unit detecting a physical quantity of a target device; an extracting unit to extract, from the detection information, feature information indicating a feature of the detection information in an interval including a specific operation interval of the target device; a selecting unit to select reference feature information used as reference based on the feature information, and sequentially select pieces of target feature information; a calculating unit to calculate a likelihood of a process interval based on a comparison between the reference feature information and each piece of target feature information; a determining unit to determine whether the target feature information corresponding to the likelihood is included in the process interval based on the likelihood; and an estimating uni
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: January 11, 2022
    Assignees: RICOH COMPANY, LTD., FANUC CORPORATION
    Inventors: Satoru Goto, Junichi Takami, Yasunobu Shirata, Tomoki Umezawa, Yohsuke Muramoto, Takafumi Horio, Yu Teshima
  • Patent number: 11048227
    Abstract: Provided is an abnormality detection device with which an abnormality of a machining state of a machine tool can be detected based on information on a section where machining is actually performed in machine tool-based machining. The abnormality detection device detects an abnormality of a machining state of a machine tool machining a workpiece with a tool. The machine tool includes a determination unit determining the machining state by using information related to an actual cutting section in the tool-based machining of the workpiece in the machine tool. The determination unit performs the machining state determination by using a deviation in position and length of a section recognized as the actual cutting section and a physical quantity in the actual cutting section acquired from the machine tool.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: June 29, 2021
    Assignees: FANUC CORPORATION, RICOH COMPANY, LTD.
    Inventors: Tetsushi Takahara, Yasuhiro Nakahama, Shinji Okuda, Junichi Takami
  • Publication number: 20200133230
    Abstract: A device includes: a first acquiring unit to acquire context information corresponding to running operation among pieces of context information; a second acquiring unit to acquire detection information output from a detecting unit detecting a physical quantity of a target device; an extracting unit to extract, from the detection information, feature information indicating a feature of the detection information in an interval including a specific operation interval of the target device; a selecting unit to select reference feature information used as reference based on the feature information, and sequentially select pieces of target feature information; a calculating unit to calculate a likelihood of a process interval based on a comparison between the reference feature information and each piece of target feature information; a determining unit to determine whether the target feature information corresponding to the likelihood is included in the process interval based on the likelihood; and an estimating uni
    Type: Application
    Filed: March 16, 2018
    Publication date: April 30, 2020
    Inventors: Satoru GOTO, Junichi TAKAMI, Yasunobu SHIRATA, Tomoki UMEZAWA, Yohsuke MURAMOTO, Takafumi HORIO, Yu TESHIMA
  • Publication number: 20190294144
    Abstract: Provided is an abnormality detection device with which an abnormality of a machining state of a machine tool can be detected based on information on a section where machining is actually performed in machine tool-based machining. The abnormality detection device detects an abnormality of a machining state of a machine tool machining a workpiece with a tool. The machine tool includes a determination unit determining the machining state by using information related to an actual cutting section in the tool-based machining of the workpiece in the machine tool. The determination unit performs the machining state determination by using a deviation in position and length of a section recognized as the actual cutting section and a physical quantity in the actual cutting section acquired from the machine tool.
    Type: Application
    Filed: March 22, 2019
    Publication date: September 26, 2019
    Inventors: Tetsushi TAKAHARA, Yasuhiro NAKAHAMA, Shinji OKUDA, Junichi TAKAMI
  • Publication number: 20180356282
    Abstract: A diagnostic device includes a reception unit and a determination unit. The reception unit is configured to receive context information and sensing information. The context information corresponds to a certain operation of a target item that constitutes a target device. The context information is a piece of a plurality of pieces of context information each describing an operation of the target item determined depending on a type of operation of the target device. The sensing information is on a physical quantity that varies in accordance with the operation of the target item. The determination unit is configured to determine a state of the target item based on the sensing information detected while the target item is performing the certain operation, and based on a model corresponding to the received context information. The model is a model of one or more models respectively defined for one or more pieces of the context information.
    Type: Application
    Filed: December 22, 2016
    Publication date: December 13, 2018
    Applicant: Ricoh Company, Ltd.
    Inventors: Hiroaki FUKUDA, Yasunobu SHIRATA, Yohsuke MURAMOTO, Junichi TAKAMI
  • Patent number: 9805486
    Abstract: A user terminal apparatus includes an input receiver, an intersecting-image information obtaining unit and a divider. The input receiver receives input information relating to image-drawing and image-erasing. The intersecting-image information obtaining unit obtains image-drawing input information intersecting image-erasing input information as intersecting-image information when the input receiver receives image-erasing input information. The divider divides the intersecting-image information to erase a portion of the intersecting-image information contained in an erasing area computed from the image-erasing input information when the input information is image-erasing input information.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: October 31, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Takanori Nagahara, Junichi Takami, Shiroh Ikegami
  • Patent number: 9754606
    Abstract: A processing apparatus estimates a noise amplitude spectrum of noise included in a sound signal. The processing apparatus includes an amplitude spectrum calculation part configured to calculate an amplitude spectrum of the sound signal for each one of frames obtained from dividing the sound signal into units of time; and a noise amplitude spectrum estimation part configured to estimate the noise amplitude spectrum of the noise detected from the frame. The noise amplitude spectrum estimation part includes a first estimation part configured to estimate the noise amplitude spectrum based on a difference between the amplitude spectrum calculated by the amplitude spectrum calculation part and the amplitude spectrum of the frame occurring before the noise is detected, and a second estimation part configured to estimate the noise amplitude spectrum based on an attenuation function obtained from noise amplitude spectra of the frames occurring after the noise is detected.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: September 5, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Akihito Aiba, Junichi Takami
  • Patent number: 9557698
    Abstract: An information processing apparatus includes a sound collector configured to collect an operation sound of a sound collection target device to obtain sound data; a context information obtaining unit configured to obtain context information at a time of an operation of the sound collection target device; a feature generator configured to generate feature of sound data corresponding to the context information; and a clustering unit configured to generate an operation status table of the sound collection target device by using the feature.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: January 31, 2017
    Assignee: Ricoh Company, Limited
    Inventors: Yohsuke Muramoto, Hiroaki Fukuda, Yasunobu Shirata, Junichi Takami
  • Publication number: 20160147187
    Abstract: An information processing apparatus includes a sound collector configured to collect an operation sound of a sound collection target device to obtain sound data; a context information obtaining unit configured to obtain context information at a time of an operation of the sound collection target device; a feature generator configured to generate feature of sound data corresponding to the context information; and a clustering unit configured to generate an operation status table of the sound collection target device by using the feature.
    Type: Application
    Filed: November 10, 2015
    Publication date: May 26, 2016
    Applicant: Ricoh Company, Limited
    Inventors: Yohsuke MURAMOTO, Hiroaki FUKUDA, Yasunobu SHIRATA, Junichi TAKAMI
  • Publication number: 20150242754
    Abstract: A pattern recognition system includes a learning unit, a learning unit, a threshold calculation unit, and a determining unit. The learning unit learns, based on learned data of a first pattern, a model for determining whether recognition object data is the first pattern. The learning unit calculates likelihood indicating how likely the recognition object data is the first pattern by using the model learned by the learning unit. The threshold calculation unit calculates a threshold to be compared with the likelihood to determine whether the recognition object data is the first pattern, based on first likelihood that is calculated with respect to learned data of the first pattern and second likelihood that is calculated with respect to learned data of a second pattern. The determining unit determines whether the recognition object data is the first pattern by using the threshold.
    Type: Application
    Filed: February 10, 2015
    Publication date: August 27, 2015
    Applicant: Ricoh Company, Limited
    Inventors: Hiroaki FUKUDA, Yohsuke MURAMOTO, Yasunobu SHIRATA, Junichi TAKAMI
  • Publication number: 20150098587
    Abstract: A processing apparatus estimates a noise amplitude spectrum of noise included in a sound signal. The processing apparatus includes an amplitude spectrum calculation part configured to calculate an amplitude spectrum of the sound signal for each one of frames obtained from dividing the sound signal into units of time; and a noise amplitude spectrum estimation part configured to estimate the noise amplitude spectrum of the noise detected from the frame. The noise amplitude spectrum estimation part includes a first estimation part configured to estimate the noise amplitude spectrum based on a difference between the amplitude spectrum calculated by the amplitude spectrum calculation part and the amplitude spectrum of the frame occurring before the noise is detected, and a second estimation part configured to estimate the noise amplitude spectrum based on an attenuation function obtained from noise amplitude spectra of the frames occurring after the noise is detected.
    Type: Application
    Filed: April 19, 2013
    Publication date: April 9, 2015
    Inventors: Akihito Aiba, Junichi Takami
  • Patent number: 8988491
    Abstract: A communication terminal or system is provided with a processor that calculates a transmission data size that is suitable to a detected state of a network, and analyzes contents of image data for transmission to determine an image parameter that should be prioritized. The communication terminal or system encodes the image data for transmission into encoded image data, based on the calculated transmission data size and the image parameter that should be prioritized.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: March 24, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Tetsuo Yamashita, Kohji Oshikiri, Hiroomi Motohashi, Junichi Takami, Yosuke Kawamura, Noriyuki Shiota
  • Publication number: 20140192058
    Abstract: An image processing apparatus measures duration of the drawing operation by using coordinate information that indicates coordinate instructed to draw and time information that indicates time when the coordinates are detected, determines predicted time in accordance with the duration of the drawing operation, and generates an drawn image by calculating the predicted coordinates after the predicted time passes. The image processing apparatus calculates a characteristic value of the drawing operation by using the coordinate information and the time information and measures the duration of the drawing operation in case the characteristic value of the drawing operation is less than predetermined threshold value.
    Type: Application
    Filed: December 19, 2013
    Publication date: July 10, 2014
    Inventors: Yu KODAMA, Katsuyuki Omura, Junichi Takami