Patents by Inventor Tatsuya Maruyama

Tatsuya Maruyama 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: 10292204
    Abstract: A wireless communication device that communicates with a plurality of slave units, including: a transmitter that transmits a data transmission instruction including a first identification information of a single slave unit among the plurality of slave units; a receiver that receives data corresponding to the data transmission instruction from the single slave unit; wherein the transmitter transmits to the plurality of slave units acknowledgment data which has incorporated second identification information into an acknowledgment to the data received from the single slave unit, the second identification information indicating another slave unit which transmits data corresponding to a next data transmission instruction to the wireless communication device.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: May 14, 2019
    Assignee: FUJITSU COMPONENT LIMITED
    Inventors: Masahiro Yanagi, Kimihiro Maruyama, Tatsuya Kakehashi
  • Publication number: 20190016481
    Abstract: A fuel tank for use with a spacecraft, the fuel tank being configured to store therein fuel for driving the spacecraft, includes a carbon fiber reinforced plastic layer and a metallic plating layer, the carbon fiber reinforced plastic layer has a polished surface having been subjected to polishing processing, the polished surface being on an inner side of the fuel tank, and the metallic plating layer is provided on the polished surface.
    Type: Application
    Filed: December 27, 2016
    Publication date: January 17, 2019
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Naruhiko CHIKU, Tatsuya MARUYAMA
  • Patent number: 10136403
    Abstract: There is provided a communication control device including: a real-time communication status extraction unit that acquires a communication timing of real-time data; a dynamic fragment size determination unit that acquires a fragment size of sending data which can be sent until the communication timing acquired by the real-time communication status extraction unit; a fragment processing unit that fragments non-real-time data to have at least a fragment size which is equal to or less than the fragment size acquired by the dynamic fragment size determination unit; and a communication unit that sends the non-real-time data, which is fragmented by the fragment processing unit, before the communication timing of the real-time data.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: November 20, 2018
    Assignee: Hitachi, Ltd.
    Inventors: Tatsuya Maruyama, Tsutomu Yamada, Mitsuyasu Kido, Shouji Yoshida, Kazuhisa Takami
  • Patent number: 10063465
    Abstract: An object of the present invention is to provide a network system or the like in which the construction cost of a network for a plurality of control systems is suppressed which is excellent in resistance to a network failure.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: August 28, 2018
    Assignee: Hitachi, Ltd.
    Inventors: Tatsuya Maruyama, Tsutomu Yamada, Chikashi Komatsu, Mitsuyasu Kido, Shouji Yoshida
  • Patent number: 10045095
    Abstract: Provided are a communication processing device and a communication system, capable of securely updating a communication protocol process with a simple configuration and technique, while continuing communication.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: August 7, 2018
    Assignee: Hitachi, Ltd.
    Inventors: Hiromichi Yamada, Tsutomu Yamada, Tatsuya Maruyama
  • Publication number: 20170094375
    Abstract: Provided are a communication processing device and a communication system, capable of securely updating a communication protocol process with a simple configuration and technique, while continuing communication.
    Type: Application
    Filed: June 15, 2016
    Publication date: March 30, 2017
    Inventors: Hiromichi YAMADA, Tsutomu YAMADA, Tatsuya MARUYAMA
  • Patent number: 9557734
    Abstract: A control computer as a master apparatus in a control network system includes a packet generation unit. The packet generation unit: selects a control command for writing a data from among packet generation information; references the packet generation information for each of the selected control command; and includes a data for write which is read from an address in a storage section corresponding to the each control command, in a control packet to generate the control packet. A communication unit transmits the generated control packet to a controlled object as a slave device.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: January 31, 2017
    Assignee: HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.
    Inventors: Tatsuya Maruyama, Tsutomu Yamada, Shinji Yonemoto, Takashi Iwaki, Hironori Ohashi, Yutaka Matsumoto, Ichiro Takahashi
  • Publication number: 20160360497
    Abstract: There is provided a communication control device including: a real-time communication status extraction unit that acquires a communication timing of real-time data; a dynamic fragment size determination unit that acquires a fragment size of sending data which can be sent until the communication timing acquired by the real-time communication status extraction unit; a fragment processing unit that fragments non-real-time data to have at least a fragment size which is equal to or less than the fragment size acquired by the dynamic fragment size determination unit; and a communication unit that sends the non-real-time data, which is fragmented by the fragment processing unit, before the communication timing of the real-time data.
    Type: Application
    Filed: June 3, 2016
    Publication date: December 8, 2016
    Inventors: Tatsuya MARUYAMA, Tsutomu YAMADA, Mitsuyasu KIDO, Shouji YOSHIDA, Kazuhisa TAKAMI
  • Patent number: 9485045
    Abstract: Communication control equipment is connected to a plurality of communication control equipment via a network and is configured to be time-synchronized with the plurality of communication control equipment by using a time synchronization procedure using a communication including at least request packets and acknowledgement packets. The communication control equipment includes a receiving-interval measurement section configured to measure a receiving interval of request packets from the plurality of communication control equipment; and a queuing-occurrence determination section configured to detect conflict of the request packets from any of the plurality of communication control equipment on a basis of the receiving interval of the request packets measured by the receiving-interval measurement section.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: November 1, 2016
    Assignee: HITACHI, LTD.
    Inventors: Tatsuya Maruyama, Tsutomu Yamada, Mitsuyasu Kido, Shoji Yoshida
  • Publication number: 20160277288
    Abstract: An object of the present invention is to provide a network system or the like in which the construction cost of a network for a plurality of control systems is suppressed which is excellent in resistance to a network failure.
    Type: Application
    Filed: September 5, 2014
    Publication date: September 22, 2016
    Applicant: Hitachi, Ltd.
    Inventors: Tatsuya MARUYAMA, Tsutomu YAMADA, Chikashi KOMATSU, Mitsuyasu KIDO, Shouji YOSHIDA
  • Publication number: 20160025289
    Abstract: A vehicle lighting unit can accurately dispose the light incident portion of a light guiding member and a light source with respect to each other while the light guiding member can be exposed on the front side without the provision of a large opening to a supporting member for supporting the light guiding member. The vehicle lighting unit can include an LED substrate in which an LED is installed, a light guiding member having a light incident portion on which light from the LED can be incident, and an extension configured to support the light guiding member. The extension can have an insertion hole formed therein, through which the light incident portion of the light guiding member is inserted from a front side thereof. The LED substrate can be disposed so that the LED faces and approaches to the insertion hole of the extension and attached to the extension from its rear side through a bracket so that the LED substrate is secured to a rear surface of the bracket.
    Type: Application
    Filed: July 20, 2015
    Publication date: January 28, 2016
    Inventor: Tatsuya Maruyama
  • Patent number: 9148297
    Abstract: An information processor capable of ensuring time synchronization accuracy, ensuring EtherCAT command consistency, and easily developing the software based on a 2-port configuration even when a communication path error occurs includes: an arithmetic section; at least two communication sections each including a transmission section and a reception section; and a redundant communication control section that controls a communication path between the arithmetic section and the communication section. The redundant communication control section includes: a communication path state determination section that determines a network path state; and a redundant path switching section that switches connection between the arithmetic section and at least two communication sections.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: September 29, 2015
    Assignee: HITACHI, LTD.
    Inventors: Tatsuya Maruyama, Tsutomu Yamada, Norihisa Yanagihara, Shinji Yonemoto, Takashi Iwaki, Hironori Ohashi, Yutaka Matsumoto
  • Patent number: 8913514
    Abstract: A communication control unit and a communication control system are provided in which control devices can synchronously operate. In a communication control system in which a communication control unit and multiple control devices having an actuator to operate a control target are connected via a network, the communication control unit provides a control command to the control devices, synchronizes times of the communication control unit and the control devices, obtains communication delays relative to the control devices, collects control start times of the control devices, obtains a time by subtracting the control start time from a predetermined time as a start time of the control device, calculates a time obtained by subtracting the communication delay from the start time for each control device, and transmits the control command to the control devices before the earliest time of the calculated times.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: December 16, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Tatsuya Maruyama, Tsutomu Yamada, Shinji Yonemoto, Takashi Iwaki, Hironori Ohashi, Yutaka Matsumoto
  • Patent number: 8835474
    Abstract: (R)-2-(2-aminothiazol-4-yl)-4?-[2-[(2-hydroxy-2-phenylethyl)amino]ethyl]acetic acid anilide or its salt shows a potent bladder relaxation effect in “isolated rat bladder smooth muscle relaxation test”, dose-dependently lowers the contraction frequency of rhythmic bladder contractions in “rat rhythmic bladder contraction measurement test” and, moreover, prolongs the urination intervals in “urination functions measurement test on cyclophosphamide-induced overactive bladder model rat”. Owing to these effects, the above compound is useful as a remedy for overactive bladder.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: September 16, 2014
    Assignee: Astellas Pharma Inc.
    Inventors: Toshiyuki Takasu, Shuichi Sato, Masashi Ukai, Tatsuya Maruyama, Masayuki Shibasaki
  • Patent number: 8788735
    Abstract: An interrupt control unit provides controls on an interrupt from an accelerator to a CPU based on a packet transmitted to or received from a controlled object. The interrupt control unit includes: a storage part for storing therein an interrupt control timing table in which a condition of switching a mode of the interrupt control is described; and an interrupt control mode switching part for switching the mode of the interrupt control to the CPU between a permission mode and a mask mode, based on the interrupt control timing table in the storage part.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: July 22, 2014
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Tatsuya Maruyama, Tsutomu Yamada, Norihisa Yanagihara, Shinji Yonemoto, Takashi Iwaki, Hiroshi Fujii
  • Publication number: 20140098706
    Abstract: Communication control equipment is connected to a plurality of communication control equipment via a network and is configured to be time-synchronized with the plurality of communication control equipment by using a time synchronization procedure using a communication including at least request packets and acknowledgement packets. The communication control equipment includes a receiving-interval measurement section configured to measure a receiving interval of request packets from the plurality of communication control equipment; and a queuing-occurrence determination section configured to detect conflict of the request packets from any of the plurality of communication control equipment on a basis of the receiving interval of the request packets measured by the receiving-interval measurement section.
    Type: Application
    Filed: October 3, 2013
    Publication date: April 10, 2014
    Applicant: Hitachi, Ltd.
    Inventors: Tatsuya MARUYAMA, Tsutomu YAMADA, Mitsuyasu KIDO, Shoji YOSHIDA
  • Patent number: 8649730
    Abstract: A wireless communication system includes a wireless communication apparatus (fixed terminal) resided in a fixed station side providing a wireless antenna, a wireless communication unit, a server processing unit, a task list, a data communication unit, a buffer management unit and a buffer, and a wireless data transport apparatus (mobile terminal) resided in a mobile station side providing the wireless antenna, the wireless communication unit, a server determination unit, a task list I/O unit, the task list, a client processing unit and the buffer, thereby, the mobile terminal receives the task list from the fixed terminal to communicate data with another fixed terminal and transports not only the data but also a data acknowledgement, and the fixed terminal creates the acknowledgement to use the acknowledgement to thereby control a creation and deletion of bulk data appropriately.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: February 11, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Tsutomu Yamada, Yoshihito Sato, Hideaki Suzuki, Shoji Suzuki, Tatsuya Maruyama, Junsuke Fujiwara
  • Patent number: 8613468
    Abstract: This disclosure discloses a side-collision airbag apparatus comprising: a side-collision airbag; an inflator configured to inject gas; and an inflator holder configured to support the inflator; wherein: the inflator comprises: an inflator main body portion that is substantially cylindrical in shape and produces the gas; an injecting portion that protrudes from a tip end of the inflator main body portion; and a clasp portion positioned between the inflator main body portion and the injecting portion; the inflator holder comprises: a holding portion configured to hold the inflator; and a diffuser portion having a diffuser tube that has a cross-section substantially elliptical in shape; and the diffuser tube comprises a contraction opening at an end portion in an injection direction of the gas, and is provided so that an end portion opposite the injection direction of the gas faces to the radial outer peripheral side of the clasp portion.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: December 24, 2013
    Assignee: Takata Corporation
    Inventor: Tatsuya Maruyama
  • Patent number: 8423741
    Abstract: A storage medium management part includes a stored data amount adjustment part that: stores a maximum data amount which the storage medium can store at the time of startup of a storage control device, and a stored data amount which is an initial stored amount, in a data amount storage part; upon receiving a write amount of a data in response to a write request, writes a new stored data amount calculated by adding the write amount to the already stored data amount, over the already stored data amount; calculates a free space by subtracting the stored data amount from the maximum data amount; determines a deletion amount of the data if the free space does not takes a value not less than a prescribed value; and writes a newly-calculated stored data amount calculated by subtracting the deletion amount from the stored data amount, over the stored data amount.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: April 16, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Masaya Suehiro, Tatsuya Maruyama, Tsutomu Yamada, Hideaki Suzuki
  • Patent number: RE44872
    Abstract: (R)-2-(2-aminothiazol-4-yl)-4?-[2-[(2-hydroxy-2-phenylethyl)amino]ethyl]acetic acid anilide or its salt shows a potent bladder relaxation effect in “isolated rat bladder smooth muscle relaxation test”, dose-dependently lowers the contraction frequency of rhythmic bladder contractions in “rat rhythmic bladder contraction measurement test” and, moreover, prolongs the urination intervals in “urination functions measurement test on cyclophosphamide-induced overactive bladder model rat”. Owing to these effects, the above compound is useful as a remedy for ovaractive bladder.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: April 29, 2014
    Assignee: Astellas Pharma Inc.
    Inventors: Toshiyuki Takasu, Shuichi Sato, Masashi Ukai, Tatsuya Maruyama, Masayuki Shibasaki