Patents by Inventor Takafumi Fujita

Takafumi Fujita 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).

  • Publication number: 20210216248
    Abstract: A memory system includes a non-volatile memory, and a controller configured to issue a first command requesting a first operation to the non-volatile memory and a second command to the non-volatile memory. The second command may be for requesting a duration time of the first operation or for requesting an execution stage of the first operation. In accordance with the information returned by the non-volatile memory in response to the second command, the controller issues a third command requesting a completion status of the first operation to the non-volatile memory. The first operation may be a data read operation, a data write operation, or a data erase operation.
    Type: Application
    Filed: January 15, 2021
    Publication date: July 15, 2021
    Inventors: Katsuya KANAMORI, Takafumi FUJITA
  • Publication number: 20200400993
    Abstract: According to one embodiment, a relay substrate provided between a liquid crystal panel and a controller includes first connectors. The controller includes a microcomputer and second connectors. The relay substrate and the controller include a line pattern to form a test circuit which feeds a test signal back to an input pin of the microcomputer from an output pin of the microcomputer, and which transfers the test signal between the controller and the relay substrate in each pair of the first connectors and the second connectors. The microcomputer outputs the test signal from the output pin, and determines a connecting state of the cables that connect the relay substrate and the controller based on a state of feedback of the test signal to the input pin.
    Type: Application
    Filed: June 18, 2020
    Publication date: December 24, 2020
    Applicant: Japan Display Inc.
    Inventors: Takafumi FUJITA, Seiji FURUMOTO
  • Publication number: 20200164396
    Abstract: A device for coating a cylinder includes a coating head capable of being inserted into the cylinder, a plurality of coating guns which are provided on the coating head and are configured to discharge a coating material in a direction intersecting a longitudinal direction of the coating head, and a rotating cover which, when the coating material is discharged from one of a first coating gun and a second coating gun among the plurality of coating guns, is configured to cover the other of the first coating gun and the second coating gun, in which the plurality of coating guns are connected to coating material supply devices of different systems, respectively.
    Type: Application
    Filed: January 31, 2020
    Publication date: May 28, 2020
    Applicant: IHI Corporation
    Inventors: Michiko ENDA, Takafumi Fujita, Yuuichi Miura, Miki Shinagawa
  • Patent number: 10546334
    Abstract: A computer architecture stores favorite information showing a relationship between sellers and buyers who mark the sellers as favorite in a buy/sell web site, and similarity information regarding similarity between items/service sold and items/service bought. If the architecture receives action information showing a predetermined action from a first buyer to a first seller, it extracts second sellers that are marked as favorite by second buyers who mark the first seller as favorite, calculates a similarity and extracts at least one third seller who is marked as favorite by the second buyer having a similarity between the second seller and the first seller at a predetermined value or having a similarity between the first buyer and the second buyer at the predetermined value or more. Third seller recommendation information is transmitted to the first buyer.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: January 28, 2020
    Assignee: Rakuten, Inc.
    Inventors: Takafumi Fujita, Yoovraj Shinde
  • Publication number: 20200001392
    Abstract: The present disclosure provides a linear friction joining device which includes: a pressing device for pressing a second member onto a first member in a pressing direction; a vibrator for relatively vibrating the first member and the second member; a controller which is configured to bring the second member into contact with the first member by a position control, which depends on a measurement result of position sensors, to change the position control to a load control, which depends on a measurement result of load sensors, and to increase a pressing load toward a joining load; and a joining load reaching time adjuster which is configured to adjust a length of a joining load reaching time which is between the time when the position control is changed to the load control and the time when the pressing load reaches the joining load.
    Type: Application
    Filed: February 15, 2018
    Publication date: January 2, 2020
    Applicant: IHI Corporation
    Inventors: Takafumi FUJITA, Yasushi DODO, Kazunori TOKUE
  • Publication number: 20190065395
    Abstract: A storage device includes a nonvolatile memory and a controller configured to access the nonvolatile memory in response to a command from a host apparatus. In response to a first command which includes a first logical address and a second logical address, the controller updates a logical-to-physical address conversion map to correlate the second logical address with a physical address of the nonvolatile memory to which the first logical address is correlated. In response to a second command which includes the first logical address, the controller updates the logical-to-physical address conversion map to invalidate the correlation between the first logical address and the physical address.
    Type: Application
    Filed: June 7, 2018
    Publication date: February 28, 2019
    Inventor: Takafumi FUJITA
  • Publication number: 20170091857
    Abstract: A computer architecture stores favorite information showing a relationship between sellers and buyers who mark the sellers as favorite in a buy/sell web site, and similarity information regarding similarity between items/service sold and items/service bought. If the architecture receives action information showing a predetermined action from a first buyer to a first seller, it extracts second sellers that are marked as favorite by second buyers who mark the first seller as favorite, calculates a similarity and extracts at least one third seller who is marked as favorite by the second buyer having a similarity between the second seller and the first seller at a predetermined value or having a similarity between the first buyer and the second buyer at the predetermined value or more. Third seller recommendation information is transmitted to the first buyer.
    Type: Application
    Filed: March 19, 2014
    Publication date: March 30, 2017
    Applicant: Rakuten, Inc.
    Inventors: Takafumi FUJITA, Yoovraj SHINDE
  • Patent number: 8644766
    Abstract: A radio communication system includes a transmission device which transmits a plurality of radio signals, and a reception device which receives the plurality of radio signals from the transmission device and estimates, as a carrier frequency offset, a difference between a carrier frequency transmitted by the transmission device and a reference reception frequency used for reception. The system includes the transmission device which branches a first previously determined sequence of training signals, and transmits the radio signals modulated with frequencies by the carrier frequency offsets having regularity for a first sequence of a plurality of branched training signals, and the reception device which estimates the carrier frequency offset with the transmission device according to the first sequence of training signals included in the radio signals transmitted from the transmission device and phase shift amounts obtained from the first previously determined sequence of training signals.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: February 4, 2014
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Yosuke Fujino, Daisei Uchida, Takafumi Fujita
  • Publication number: 20130308180
    Abstract: Disclosed herein is an infrared reflective substrate that can be easily produced by application onto the surface of a base material, has a film having a small film thickness, and achieves both high light permeability and excellent infrared reflective performance. The infrared reflective substrate includes: a transparent base material; and an infrared reflective layer formed by applying a coating agent containing a complex of poly(3,4-disubstituted thiophene) and a polyanion onto the transparent base material, and has a total light transmittance of 60% or higher. The complex preferably has a conductivity of 0.15 (S/cm) or higher, and the infrared reflective layer preferably has a film thickness of 0.50 ?m or less.
    Type: Application
    Filed: January 30, 2012
    Publication date: November 21, 2013
    Applicant: NAGASE CHEMTEX CORPORATION
    Inventors: Kyoko Miyanishi, Takafumi Fujita, Tetsuya Hosomi
  • Patent number: 8517417
    Abstract: An airbag apparatus is provided including an airbag which is formed as a bag body by connecting a plurality of panels via seaming and is folded and housed in an instrument panel, and an inflator, wherein: in one form the airbag includes: a multi-layered connecting portion that connects at least three layers of the panels; and a height regulating portion that regulates a dimension of a height direction of the airbag from an upper surface of the instrument panel in an initial stage of an inflation and deployment process of the airbag; and the multi-layered connecting portion is positioned further toward a vehicle rear than the height regulating portion, in a state where the airbag apparatus is mounted to a vehicle.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: August 27, 2013
    Assignee: Takata Corporation
    Inventor: Takafumi Fujita
  • Patent number: 8248975
    Abstract: A wireless transmitting apparatus inserts a training signal into a transmission burst at fixed symbol intervals as a pilot signal, a wireless receiving apparatus performs AD conversion of a received burst signal, performs symbol timing recovery, performs frame position detection and pilot signal extraction from the received burst signal for which symbol timing was established, performs frame synchronization, and performs a carrier frequency estimation using pilot signal. A carrier frequency estimation is also performed with respect to a received burst signal for which frame synchronization was established, and channel distortion is estimated and output based on a frequency-corrected received burst signal. Channel distortion estimation is then performed with respect to a frequency-corrected received burst signal, and a data symbol sequence of the channel-compensated received burst signal is converted to a received data bit stream.
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: August 21, 2012
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Takafumi Fujita, Daisei Uchida, Yosuke Fujino, Osamu Kagami, Masahiro Umehira
  • Publication number: 20120013109
    Abstract: An airbag apparatus is provided including an airbag which is formed as a bag body by connecting a plurality of panels via seaming and is folded and housed in an instrument panel, and an inflator, wherein: in one form the airbag includes: a multi-layered connecting portion that connects at least three layers of the panels; and a height regulating portion that regulates a dimension of a height direction of the airbag from an upper surface of the instrument panel in an initial stage of an inflation and deployment process of the airbag; and the multi-layered connecting portion is positioned further toward a vehicle rear than the height regulating portion, in a state where the airbag apparatus is mounted to a vehicle.
    Type: Application
    Filed: July 7, 2011
    Publication date: January 19, 2012
    Inventor: Takafumi Fujita
  • Publication number: 20110039588
    Abstract: A radio communication system includes a transmission device which transmits a plurality of radio signals, and a reception device which receives the plurality of radio signals from the transmission device and estimates, as a carrier frequency offset, a difference between a carrier frequency transmitted by the transmission device and a reference reception frequency used for reception. The system includes the transmission device which branches a first previously determined sequence of training signals, and transmits the radio signals modulated with frequencies by the carrier frequency offsets having regularity for a first sequence of a plurality of branched training signals, and the reception device which estimates the carrier frequency offset with the transmission device according to the first sequence of training signals included in the radio signals transmitted from the transmission device and phase shift amounts obtained from the first previously determined sequence of training signals.
    Type: Application
    Filed: April 21, 2009
    Publication date: February 17, 2011
    Applicant: Nippon Telegraph and Telephone Corporation
    Inventors: Yosuke Fujino, Daisei Uchida, Takafumi Fujita
  • Publication number: 20090285137
    Abstract: A wireless transmitting apparatus inserts a training signal into a transmission burst at fixed symbol intervals as a pilot signal, a wireless receiving apparatus performs AD conversion of a received burst signal, performs symbol timing recovery, performs frame position detection and pilot signal extraction from the received burst signal for which symbol timing was established, performs frame synchronization, and performs a carrier frequency estimation using pilot signal. A carrier frequency estimation is also performed with respect to a received burst signal for which frame synchronization was established, and channel distortion is estimated and output based on a frequency-corrected received burst signal. Channel distortion estimation is then performed with respect to a frequency-corrected received burst signal, and a data symbol sequence of the channel-compensated received burst signal is converted to a received data bit stream.
    Type: Application
    Filed: September 5, 2006
    Publication date: November 19, 2009
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Takafumi Fujita, Daisei Uchida, Yosuke Fujino, Osamu Kagami, Masahiro Umehira
  • Patent number: 6933736
    Abstract: This invention is a probe apparatus including: a stage onto which a substrate to be processed is placed, a semiconductor device having a plurality of groups of electrode pads being formed on the substrate to be processed; a probe-card holding mechanism that holds a probe card provided with a group of probe needles corresponding to each group of electrode pads; and a driving mechanism that moves the stage and causes the group of probe needles to successively come in contact with the respective groups of electrode pads. A converting device that converts mechanical vibration energy generated in components of the probe apparatus into electrical energy, and an electrical circuit that discreates an electrical current based on the electric energy converted by the converting device are further provided.
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: August 23, 2005
    Assignees: Tokyo Electron Limited
    Inventors: Masahito Kobayashi, Haruhiko Yoshioka, Takafumi Fujita
  • Publication number: 20040164759
    Abstract: This invention is a probe apparatus including: a stage onto which a substrate to be processed is placed, a semiconductor device having a plurality of groups of electrode pads being formed on the substrate to be processed; a probe-card holding mechanism that holds a probe card provided with a group of probe needles corresponding to each group of electrode pads; and a driving mechanism that moves the stage and causes the group of probe needles to successively come in contact with the respective groups of electrode pads. A converting device that converts mechanical vibration energy generated in components of the probe apparatus into electrical energy, and an electrical circuit that discreates an electrical current based on the electric energy converted by the converting device are further provided.
    Type: Application
    Filed: January 23, 2004
    Publication date: August 26, 2004
    Inventors: Masahito Kobayashi, Haruhiko Yoshioka, Takafumi Fujita
  • Patent number: 5867951
    Abstract: A seismic isolation sliding bearing for a structure, is made up of a dish 1 having a conical concave surface having a predetermined inclination or a spherical concave surface in its central portion, and a bearing element 2 in which the bearing element includes a base 3 whose portion for contact with the concave surface of the dish 1 is formed by a low-friction material, and a holder 6 which holds the base 3 so as to press it against the concave surface of the dish 1. The seismic isolation sliding bearing of the present invention neither resonates to the vibration period of any earthquake nor causes a large oscillation during a normal small vibration, but has a restoring force because of its structure which enables the bearing element to readily return to its original position after an earthquake ceases.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: February 9, 1999
    Assignees: Mitsubishi Steel Mfg. Co., Ltd., Takafumi Fujita
    Inventors: Daisuke Yaguchi, Hiroshi Kurabayashi, Toshio Omi, Nobuyuki Sone, Takeshi Someya, Hirokazu Hora, Akira Matsuda, Takafumi Fujita
  • Patent number: 5544452
    Abstract: A passive vibration-damping unit in which movable upper members with a weight mounted thereon are superposed on fixed lower members with roller members interposed therebetween is installed in a highest story of a high-rise building. An active vibration-damping unit for actively causing the movable upper members of the passive vibration-damping unit to move in a shaking manner by means of a servo motor is incorporated in the passive vibration-damping unit. When the vibration of the building has occurred, the weight is allowed to move forcibly in the vibration-damping direction by means of the active vibration-damping unit. When the vibration has reached a limit value of the relative displacement of the active vibration-damping unit or a limit value of the torque of the servo motor, only the operation of the passive vibration-damping unit is continued. When the vibration has subsided to a certain extent, the active vibration-damping unit is operated again.
    Type: Grant
    Filed: July 5, 1994
    Date of Patent: August 13, 1996
    Assignees: Oiles Corporation, Okumura Corporation
    Inventors: Takafumi Fujita, Ikuo Shimoda, Masami Mochimaru, Susumu Otsuka, Nobuyasu Kawai, Kurimoto Kurimoto, Kanemasa Inaba
  • Patent number: 5255764
    Abstract: A damping apparatus for large structures operable both passively and actively is disclosed which comprises a passive type damping mechanism to be mounted on the structure and including an added mass, spring, dampener, etc., hydraulic cylinders mounted on the structure and connected to the added mass, an electro-hydraulic servo mechanism to switch the hydraulic cylinders between passive and active type operation, and a control unit for switching the electro-hydraulic servo mechanism between passive and active type operation in response to the velocity and displacement of the added mass as well as the velocity of the structure.
    Type: Grant
    Filed: December 8, 1992
    Date of Patent: October 26, 1993
    Assignees: Takafumi Fujita, Mitsubishi Steel
    Inventors: Hiroshi Kurabayashi, Toshio Omi, Hiroshi Miyano, Takafumi Fujita
  • Patent number: 4924640
    Abstract: A vibration controlling apparatus for buildings such as high-rise building, tower and the like comprises a laminated elastic body comprised of elastomer layers and reinforcing plates attached to the building, and an additional mass attached thereto, and reduces the swinging of the building.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: May 15, 1990
    Assignees: Bridgestone Corporation, Takafumi Fujita
    Inventors: Yoji Suizu, Nobuo Masaki, Takafumi Fujita, Hiroshi Kurabayashi