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: 20210216248Abstract: 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: ApplicationFiled: January 15, 2021Publication date: July 15, 2021Inventors: Katsuya KANAMORI, Takafumi FUJITA
-
Publication number: 20200400993Abstract: 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: ApplicationFiled: June 18, 2020Publication date: December 24, 2020Applicant: Japan Display Inc.Inventors: Takafumi FUJITA, Seiji FURUMOTO
-
Publication number: 20200164396Abstract: 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: ApplicationFiled: January 31, 2020Publication date: May 28, 2020Applicant: IHI CorporationInventors: Michiko ENDA, Takafumi Fujita, Yuuichi Miura, Miki Shinagawa
-
Patent number: 10546334Abstract: 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: GrantFiled: March 19, 2014Date of Patent: January 28, 2020Assignee: Rakuten, Inc.Inventors: Takafumi Fujita, Yoovraj Shinde
-
Publication number: 20200001392Abstract: 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: ApplicationFiled: February 15, 2018Publication date: January 2, 2020Applicant: IHI CorporationInventors: Takafumi FUJITA, Yasushi DODO, Kazunori TOKUE
-
Publication number: 20190065395Abstract: 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: ApplicationFiled: June 7, 2018Publication date: February 28, 2019Inventor: Takafumi FUJITA
-
Publication number: 20170091857Abstract: 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: ApplicationFiled: March 19, 2014Publication date: March 30, 2017Applicant: Rakuten, Inc.Inventors: Takafumi FUJITA, Yoovraj SHINDE
-
Patent number: 8644766Abstract: 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: GrantFiled: April 21, 2009Date of Patent: February 4, 2014Assignee: Nippon Telegraph and Telephone CorporationInventors: Yosuke Fujino, Daisei Uchida, Takafumi Fujita
-
Publication number: 20130308180Abstract: 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: ApplicationFiled: January 30, 2012Publication date: November 21, 2013Applicant: NAGASE CHEMTEX CORPORATIONInventors: Kyoko Miyanishi, Takafumi Fujita, Tetsuya Hosomi
-
Patent number: 8517417Abstract: 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: GrantFiled: July 7, 2011Date of Patent: August 27, 2013Assignee: Takata CorporationInventor: Takafumi Fujita
-
Patent number: 8248975Abstract: 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: GrantFiled: September 5, 2006Date of Patent: August 21, 2012Assignee: Nippon Telegraph and Telephone CorporationInventors: Takafumi Fujita, Daisei Uchida, Yosuke Fujino, Osamu Kagami, Masahiro Umehira
-
Publication number: 20120013109Abstract: 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: ApplicationFiled: July 7, 2011Publication date: January 19, 2012Inventor: Takafumi Fujita
-
Publication number: 20110039588Abstract: 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: ApplicationFiled: April 21, 2009Publication date: February 17, 2011Applicant: Nippon Telegraph and Telephone CorporationInventors: Yosuke Fujino, Daisei Uchida, Takafumi Fujita
-
Publication number: 20090285137Abstract: 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: ApplicationFiled: September 5, 2006Publication date: November 19, 2009Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Takafumi Fujita, Daisei Uchida, Yosuke Fujino, Osamu Kagami, Masahiro Umehira
-
Patent number: 6933736Abstract: 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: GrantFiled: January 8, 2003Date of Patent: August 23, 2005Assignees: Tokyo Electron LimitedInventors: Masahito Kobayashi, Haruhiko Yoshioka, Takafumi Fujita
-
Publication number: 20040164759Abstract: 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: ApplicationFiled: January 23, 2004Publication date: August 26, 2004Inventors: Masahito Kobayashi, Haruhiko Yoshioka, Takafumi Fujita
-
Patent number: 5867951Abstract: 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: GrantFiled: May 29, 1997Date of Patent: February 9, 1999Assignees: Mitsubishi Steel Mfg. Co., Ltd., Takafumi FujitaInventors: Daisuke Yaguchi, Hiroshi Kurabayashi, Toshio Omi, Nobuyuki Sone, Takeshi Someya, Hirokazu Hora, Akira Matsuda, Takafumi Fujita
-
Patent number: 5544452Abstract: 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: GrantFiled: July 5, 1994Date of Patent: August 13, 1996Assignees: Oiles Corporation, Okumura CorporationInventors: Takafumi Fujita, Ikuo Shimoda, Masami Mochimaru, Susumu Otsuka, Nobuyasu Kawai, Kurimoto Kurimoto, Kanemasa Inaba
-
Patent number: 5255764Abstract: 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: GrantFiled: December 8, 1992Date of Patent: October 26, 1993Assignees: Takafumi Fujita, Mitsubishi SteelInventors: Hiroshi Kurabayashi, Toshio Omi, Hiroshi Miyano, Takafumi Fujita
-
Patent number: 4924640Abstract: 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: GrantFiled: October 14, 1988Date of Patent: May 15, 1990Assignees: Bridgestone Corporation, Takafumi FujitaInventors: Yoji Suizu, Nobuo Masaki, Takafumi Fujita, Hiroshi Kurabayashi