Patents by Inventor Yuichi Ishikawa

Yuichi Ishikawa 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: 10693890
    Abstract: A packet relay apparatus, which is configured to transmit from a mirror port a mirror packet copied from one of a packet to be received and a packet to be transmitted, the packet relay apparatus comprising: a packet receiving module configured to receive a packet from an input port; a security judgment module configured to judge whether or not the packet is possibly one of an attack and an attack sign; a mirror processing module configured to generate, when it is judged that the packet is possibly one of an attack and an attack sign, a replica of the packet as the mirror packet; and a transmitting module configured to transmit the mirror packet from the mirror port.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: June 23, 2020
    Assignee: ALAXALA NETWORKS CORPORATION
    Inventors: Yuichi Ishikawa, Nobuhito Matsuyama
  • Publication number: 20200186557
    Abstract: A network anomaly detection apparatus configured to detect an anomaly of a network to be monitored based on received flow statistical information, the network anomaly detection apparatus including a processor, a memory, a statistical information collection unit, an anomaly detection unit and scenario information. The statistical information collection unit configured to receive flow statistical information aggregated from header information of packets in the network and collect the flow statistical information in a flow statistical information storage unit. Scenario information including a scenario in which a time-series sequential relation of events concerning a plurality of flows is defined.
    Type: Application
    Filed: November 12, 2019
    Publication date: June 11, 2020
    Inventors: Yuichi ISHIKAWA, Nobuhito MATSUYAMA
  • Publication number: 20200185443
    Abstract: The present technology relates to a solid-state imaging element that is capable of suppressing occurrence of flares, ghosts, and color-mixing, and is capable of suppressing occurrence of stains caused by moisture and a method for manufacturing the same, and an electronic device. The solid-state imaging element includes a pixel in which a single-layered anti-reflective film is formed on a surface of a microlens and a pixel in which a double-layered anti-reflective film is formed on the surface of the microlens. For example, the present technology is applicable to a rear surface irradiation-type solid-state imaging element.
    Type: Application
    Filed: September 28, 2017
    Publication date: June 11, 2020
    Applicant: Sony Semiconductor Solutions Corporation
    Inventors: Kouichi ITABASI, Yuuji NISHIMURA, Mitsuru ISHIKAWA, Yuichi SEKI, Masaya SHIMOJI
  • Patent number: 10659124
    Abstract: A multiantenna communication device forms a directional beam by adding an antenna weight to respective signals of a plurality of antenna elements. The multiantenna communication device includes: a processor that executes performing distortion compensation on a transmission signal by using a distortion compensation coefficient; a plurality of power amplifiers that are provided corresponding to the antenna elements, and that amplify the transmission signal subjected to the distortion compensation by the processor; a multiplexer that multiplexes signals output from the power amplifiers to feed back; and an analog/digital (A/D) converter that A/D converts a multiplex feedback signal that is obtained by the multiplexer, wherein the processor executes updating the distortion compensation coefficient by using the multiplex feedback signal A/D converted by the A/D converter and the transmission signal.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: May 19, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Takenori Ohshima, Yoji Ohashi, Hiroyoshi Ishikawa, Atsushi Honda, Toru Maniwa, Alexander Nikolaevich Lozhkin, Toshio Kawasaki, Yuichi Utsunomiya, Tomoya Ota
  • Publication number: 20200122336
    Abstract: A robot control system according to an embodiment is a control system for a robot comprising an arm, the arm being capable of holding a tool while rotating the tool and capable of moving the tool in at least two-dimensional directions, the arm being equipped with a rotating mechanism provided for the tool. The robot control system comprises a load-acquiring unit and a control-signal-generating unit. The load-acquiring unit is configured to acquire a force measured by a force sensor configured to measure a force applied from the tool to the arm during profile copying performed on a machining object by moving the arm while a copying guide attached to the arm and a copying mold placed on the machining object are kept in contact with each other.
    Type: Application
    Filed: October 31, 2017
    Publication date: April 23, 2020
    Applicant: SUBARU CORPORATION
    Inventors: Shinya MATSUO, Tatsuo NAKAHATA, Yuichi ISHIKAWA, Atsushi RIHEI, Yasuto NISHIWAKI, Masao WATANABE
  • Patent number: 10628522
    Abstract: In an approach to rule and dictionary creation based on an improvement cycle, a computing device receives a corpus, wherein the corpus comprises textual data. The computing device stores, in a rule database, a rule based on a user input. The computing device stores, in a dictionary, one or more words based on the corpus. The computing device updates one or more of the rule database and the dictionary based on an improvement cycle comprising user selections from system-generated recommendations.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: April 21, 2020
    Assignee: International Business Machines Corporation
    Inventors: Satoshi Hosokawa, Shunsuke Ishikawa, Chikako Oyanagi, Yuichi Suzuki
  • Publication number: 20200086406
    Abstract: According to one implementation, a machining apparatus includes an electromotive saw and an attaching structure. The electromotive saw cuts off a workpiece to be machined. The attaching structure attaches the saw to an arm of a robot. Further, according to one implementation, a machining method is provided. In the machining method, a machined product is manufactured by processing a composite material or a honeycomb structure with a cutting tool attached to an arm of a robot. Further, according to one implementation, a machining method is provided. In the machining method, a machined product is manufactured by processing a workpiece to be machined with a cutting tool attached to an arm of a robot. The workpiece is processed along a shape of a jig for setting the workpiece. The workpiece is processed with contacting a guide with the jig. The guide is attached to the arm.
    Type: Application
    Filed: November 21, 2019
    Publication date: March 19, 2020
    Applicants: SUBARU CORPORATION, FUYO JITSUGYO CO. LTD.
    Inventors: Yuichi ISHIKAWA, Atsushi RIHEI, Shinya MATSUO, Tatsuo NAKAHATA, Yasuto NISHIWAKI, Masao WATANABE, Saichiro YAMASHITA, Yasushi MIYASHITA
  • Patent number: 10581682
    Abstract: It is possible to update firmware of domain masters during travelling. An in-vehicle communication system includes a plurality of domain masters, and a redundant domain master configured to be able to perform alternative operations of the plurality of domain masters. The domain masters transmits operation information to the redundant domain master prior to update of firmware. The redundant domain master executes the alternative operation of the domain master using the received operation information. The domain master receives, after the update of the firmware, operation information generated in the alternative operation from the redundant domain master and operates in the updated firmware.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: March 3, 2020
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Hiroyuki Ikeda, Yuichi Iwaya, Minoru Uemura, Tatsuya Ishikawa
  • Publication number: 20190329327
    Abstract: The present invention provides an inexpensive chuck device that can achieve both a stable gripping operation and a high degree of accuracy in gripping and can also reduce limitations in the gripping of a workpiece. According to the present invention, a chuck device is provided, the chuck device being characterized by comprising a chuck main body and a master jaw, wherein the chuck main body has an oscillation supporting hole, and the oscillation supporting holes are rotatably provided in plurality around a rotational axis of the chuck main body, and wherein the master jaw has a top jaw detachably provided on one end thereof, and is fitted into the oscillation supporting hole while maintaining surface contact therewith to enable sliding contact.
    Type: Application
    Filed: November 24, 2017
    Publication date: October 31, 2019
    Applicant: KITAGAWA IRON WORKS CO., LTD
    Inventors: Naoyuki MASATSUGU, Toshihito NAKAMURA, Tamio NISHIMIYA, Youji YAMAGUCHI, Shuya ISHIKAWA, Yuichi HIRATA, Masanobu MIKAMI, Yujiro OKA
  • Publication number: 20190273541
    Abstract: A multiantenna communication device forms a directional beam by adding an antenna weight to respective signals of a plurality of antenna elements. The multiantenna communication device includes: a processor that executes performing distortion compensation on a transmission signal by using a distortion compensation coefficient; a plurality of power amplifiers that are provided corresponding to the antenna elements, and that amplify the transmission signal subjected to the distortion compensation by the processor; a multiplexer that multiplexes signals output from the power amplifiers to feed back; and an analog/digital (A/D) converter that A/D converts a multiplex feedback signal that is obtained by the multiplexer, wherein the processor executes updating the distortion compensation coefficient by using the multiplex feedback signal A/D converted by the A/D converter and the transmission signal.
    Type: Application
    Filed: February 27, 2019
    Publication date: September 5, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Takenori Ohshima, Yoji Ohashi, Hiroyoshi Ishikawa, Atsushi Honda, Toru Maniwa, Alexander Nikolaevich Lozhkin, Toshio Kawasaki, Yuichi Utsunomiya, Tomoya Ota
  • Publication number: 20190267509
    Abstract: Light-receiving element that has an absorption layer of germanium (Ge), is capable of efficiently receiving near infrared light having a large light-reception sensitivity in the absorption layer, from a free space, and has high productivity and low production costs; and a near infrared light detector comprising said light-receiving element. This light-receiving element 10 has, laminated in order upon a substrate 20, an amplification layer 30 containing silicon (Si) and an absorption layer 40 containing germanium (Ge). The amplification layer 30 has, in order upon the substrate 20, at least an n-doped n-Si layer 31 and a p-doped p-Si layer 33. The absorption layer 40 has at least a p-doped p-Ge layer 42 and the layer thickness L of the absorption layer 40 fulfils formula (1). Formula (1): L<(ln 0.8)/? [? indicates the absorption coefficient for germanium (Ge) at the wavelength of the light to be received.
    Type: Application
    Filed: July 20, 2017
    Publication date: August 29, 2019
    Inventors: Yuichi TAKEUCHI, Takuji HATANO, Yasuhiko ISHIKAWA
  • Publication number: 20190267507
    Abstract: The present invention addresses the issue of providing: a light-receiving element that has an absorption layer of germanium (Ge), is capable of efficiently receiving near infrared light having a large light-reception sensitivity in the absorption layer, from a free space, and has high productivity and low production cost; and a near infrared light detector comprising said light-receiving element. This light-receiving element 10 has, laminated in order upon a substrate 20, an amplification layer 30 containing silicon (Si), an absorption layer 40 containing germanium (Ge), and an antireflection layer 50. The amplification layer 30 has, in order upon the substrate 20, at least an n-doped n-Si layer 31 and a p-doped p-Si layer 33. The absorption layer 40 has at least a p-doped p-Ge layer 42.
    Type: Application
    Filed: July 20, 2017
    Publication date: August 29, 2019
    Inventors: Yuichi TAKEUCHI, Takuji HATANO, Yasuhiko ISHIKAWA
  • Patent number: 10369749
    Abstract: The first electrode section (7a) and the second electrode section (7b) are formed such that the outer portion connected to the upper portion of the heating section (6) is thinner than the inner portion connected to the lower portion of the heating section (6). The heating section (6) and the first electrode section (7a) are interconnected by an R-shaped first connecting portion (21). The inner circumferential sloping surface of the heating section (6) and the second electrode section (7b) are interconnected by an R-shaped second connecting portion (22). The first and second connecting portions (21)(22) are formed such that R becomes larger from the upper end to the lower end, where the upper portion is thin and the lower portion is thick. The thickness of an intermediate portion (6b) is smaller than the thicknesses of the first and second connecting portions (21)(22).
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: August 6, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yoshinori Tsurugai, Hiroshi Ishikawa, Yuichi Tajiri, Shigeto Akahori, Naohiro Ohtsu, Satoshi Shiozaki
  • Publication number: 20190228522
    Abstract: The image evaluation device includes a design data image generation unit that images design data; a machine learning unit that creates a model for generating a design data image from an inspection target image, using the design data image as a teacher and using the inspection target image corresponding to the design data image; a design data prediction image generation unit that predicts the design data image from the inspection target image, using the model created by the machine learning unit; a design data image generation unit that images the design data corresponding to the inspection target image; and a comparison unit that compares a design data prediction image generated by the design data prediction image generation unit and the design data image. As a result, it is possible to detect a systematic defect without using a defect image and generating misinformation frequently.
    Type: Application
    Filed: January 18, 2019
    Publication date: July 25, 2019
    Inventors: Shinichi SHINODA, Masayoshi ISHIKAWA, Yasutaka TOYODA, Yuichi ABE, Hiroyuki SHINDO
  • Patent number: 10353451
    Abstract: In a system using a device not adapted to a single wire bus, a semiconductor device includes an external terminal to be coupled to a power source terminal of an external device, a port that supplies a power source voltage for the external device to the external terminal, a power manager that controls an output of the port, and a CPU that controls an operation of the power manager.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: July 16, 2019
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Tatsuya Ishikawa, Yoshiaki Daimon, Norihiko Ishizaki, Yuichi Iwaya
  • Publication number: 20190213291
    Abstract: An article-storage simulation device includes an acquisition unit that acquires a size of each of the plurality of articles and a size of the storage container. A simulator determines the number of storage containers to be used for storing the articles and a number of articles to be stored by calculation. The calculation uses the acquired size of the articles and the acquired size of the container. The simulator (i) places the article in the container, (ii) determines whether a next article can be placed in the container after the article is placed, and (iii) in a case where the simulator determines that the next article can be placed, places the next article in the container after the article is placed and in a case where the simulator determines that the next article cannot be placed, adds a next container to be used for storing the next article.
    Type: Application
    Filed: October 26, 2017
    Publication date: July 11, 2019
    Inventors: Yuichi HIGUCHI, Takeshi ISHIKAWA
  • Publication number: 20190186106
    Abstract: A work machine including: a hydraulic cylinder 20 configured to drive a work implement 3; a control valve 22 configured to connect a delivery line of a hydraulic pump 21 switchingly to a bottom fluid chamber and a rod fluid chamber of the hydraulic cylinder 20 and a tank; a pilot pump 23 configured to output a pilot pressure to drive the control valve 22; an engine 24 configured to drive the hydraulic pump 21 and the pilot pump 23; and an accumulator 26 configured to accumulate a return hydraulic fluid from the hydraulic cylinder 20 is provided with: a bypass line 41 configured to connect the bottom fluid chamber of the hydraulic cylinder 20 and a delivery line 21a of the hydraulic pump 21 by bypassing the control valve 22 and be provided with the accumulator 26 thereon; a pressure-accumulation control valve 27 provided between the bottom fluid chamber of the hydraulic cylinder 20 and the accumulator 26; a release control valve 28 provided between the accumulator 26 and the delivery line 21a; and a hydraulic
    Type: Application
    Filed: March 29, 2017
    Publication date: June 20, 2019
    Inventors: Yuichi OGAWA, Seiji HIJIKATA, Masatoshi HOSHINO, Kiwamu TAKAHASHI, Kouji ISHIKAWA
  • Patent number: 10326705
    Abstract: In a core node, packet related information included in a packet is extracted, a virtual queue length, which is an estimated value of a queue length of a transmission queue addressed to a user in an edge device, is calculated and held on a user basis on the basis of the packet related information and band information of a line between the edge device and the user, and a determination is made, on a user basis, as to whether or not band control is required, on the basis of the virtual queue length and predetermined conditions so as to perform, on the basis of the result of the determination, the band control of the packet addressed to the user on a user basis in a packet relay part.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: June 18, 2019
    Assignee: Alaxala Networks Corporation
    Inventors: Kazuo Sugai, Takeshi Kumagai, Yuichi Ishikawa, Naoya Kumita
  • Patent number: 10306045
    Abstract: [Object] To reduce power consumption even more. [Solution] Provided is a communication control device including a communication necessity information acquisition unit configured to acquire communication necessity information indicating necessity to communicate with an external device, and a drive control unit configured to control drive of a first communication unit and a second communication unit on a basis of the acquired communication necessity information, the first communication unit communicating with the external device using a first communication mode, the second communication unit communicating with the external device using a second communication mode capable of transferring data at a rate higher than the first communication mode.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: May 28, 2019
    Assignee: Sony Corporation
    Inventors: Hirotaka Ishikawa, Makoto Takahashi, Yuichi Suzuki, Yasuki Kanema, Chisako Kajihara, Tohru Kadono, Takeshi Iwatsu
  • Publication number: 20190152054
    Abstract: A gripping system includes a hand that grips a workpiece, a robot that supports the hand and changes at least one of a position and a posture of the hand, and an image sensor that acquires image information from a viewpoint interlocked with at least one of the position and the posture of the hand. Additionally, the gripping system includes a construction module that constructs a model by machine learning based on collection data. The model corresponds to at least a part of a process of specifying an operation command of the robot based on the image information acquired by the image sensor and hand position information representing at least one of the position and the posture of the hand. An operation module executes the operation command of the robot based on the image information, the hand position information, and the model, and a robot control module operates the robot based on the operation command of the robot operated by the operation module.
    Type: Application
    Filed: November 19, 2018
    Publication date: May 23, 2019
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Shota ISHIKAWA, Koji SOKABE, Keisuke NAKAMURA, Masaru ADACHI, Yuichi SASAKI, Antoine PASQUALI, Thomas WILMOTTE