Patents by Inventor Atsushi Yoshida

Atsushi Yoshida 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: 20120128230
    Abstract: An inspection method, including: illuminating a light on a wafer on which plural chips having identical patterns are formed; imaging corresponding areas of two chips formed on the wafer to obtain inspection images and reference images with an image sensor; and processing the obtained inspection image and the reference image to produce a difference image which indicates a difference between the inspection image and the reference image and detect a defect by comparing the difference image with a threshold, wherein a threshold applied to a difference image which is produced by comparing the inspection image and the reference image obtained by imaging peripheral portion of the wafer is different from a threshold applied to a difference image which is produced by comparing the inspection image and the reference image obtained by imaging central portion of the wafer.
    Type: Application
    Filed: January 31, 2012
    Publication date: May 24, 2012
    Inventors: Shunji Maeda, Kenji Oka, Yukihiro Shibata, Minoru Yoshida, Chie Shishido, Yuji Takagi, Atsushi Yoshida, Kazuo Yamaguchi
  • Publication number: 20120097477
    Abstract: A standing wave attenuation device is installed in a cabin of a vehicle so as to reduce a standing wave caused by external noise such as road noise. The standing wave attenuation device provides a closed loop including a feedback comb filter with a feedback loop, a microphone, a speaker, and a delay element. The delay element adjusts the phase of the output signal of the feedback comb filter such that the time needed for one-time circulation of a signal through the feedback loop matches a half period of the standing wave. An original sound including the standing wave is picked up by the microphone and subjected to processing so that the speaker produces a sound wave with the inverse phase against the phase of a sound wave constituting the standing wave, so that the standing wave is canceled out by the sound wave emitted from the speaker.
    Type: Application
    Filed: October 17, 2011
    Publication date: April 26, 2012
    Applicant: Yamaha Corporation
    Inventors: Satoshi Sekine, Rento Tanase, Keiichi Fukatsu, Shinichi Kato, Atsushi Yoshida
  • Patent number: 8154599
    Abstract: An imaging region adjustment device includes plural camera terminals, capable of imaging an entire imaging target without blinds spots. Each of the camera terminals includes a camera which images a virtual imaging region obtained while changing the position of an imaging region within a specific region in a specific period of time and an adjusting unit B which adjusts the position of the virtual imaging region by controlling the camera.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: April 10, 2012
    Assignee: Panasonic Corporation
    Inventors: Katsuji Aoki, Atsushi Yoshida, Shoichi Araki
  • Publication number: 20120081139
    Abstract: A semiconductor test device and method for sequentially carrying out tests including an AC test, DC test, and thermal resistance test on a power semiconductor device are provided. The semiconductor test device includes a holding unit that positions the power semiconductor device. Test units each generate a test signal for the power semiconductor device and determine a test result generated in response to the test signal. A connection unit switches between the test units and selectively connects the test units electrically to electrodes of the power semiconductor device. The connection unit is controlled such that the test units are sequentially connected to the power semiconductor device to perform a plurality of the tests. The connection unit may include parallel plate electrodes in proximity to each other across an insulating sheet. The parallel plate electrodes may connect the power semiconductor device to positive and negative power sources of the test unit.
    Type: Application
    Filed: September 25, 2011
    Publication date: April 5, 2012
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventor: Atsushi YOSHIDA
  • Publication number: 20120079147
    Abstract: A bus controller includes: a data receiving section for receiving output status information from other bus controllers on transmission routes available; a route load detecting section for calculating uniformity of distribution index indicating the degree of non-uniformity in transmission flow rate between the routes based on the output status information; a routing section for determining transmission routes, of which the transmission flow rates have been adjusted by reference to the index; a packet assembling section for generating a packet; a data output section for outputting the packet through one of output ports; a header analyzing section for determining which output port is connected to a transmission route chosen by reference to information about the packet receiving end; and a data output section for outputting the packet through the output port.
    Type: Application
    Filed: September 28, 2011
    Publication date: March 29, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: Tomoki ISHII, Takao YAMAGUCHI, Atsushi YOSHIDA
  • Publication number: 20120072635
    Abstract: A relay device includes: an input buffer for receiving data units, each of which includes a header, to which multiple pieces of destination information have been added, and data associated with the header; multiple virtual channels for storing data units, each of the multiple virtual channels storing a data unit in accordance with the destination information; a destination comparing section for determining the order of allocation of virtual channels at a relay device on the receiving end with respect to the data units that are stored on the multiple virtual channels by seeing if their destinations are the same; and an output section for outputting the stored data units preferentially through one of the virtual channels that has already allocated at the relay device on the receiving end.
    Type: Application
    Filed: November 29, 2011
    Publication date: March 22, 2012
    Applicant: Panasonic Corporation
    Inventors: Atsushi Yoshida, Takao Yamaguchi, Tomoki Ishii
  • Publication number: 20120057467
    Abstract: A relay device includes a switch for switching a combination of an input for receiving traffic data and an output for sending the traffic data; a congestion information processing section for obtaining congestion information indicating a degree of congestion of each of a plurality of traffics from an adjacent relay device which handles the plurality of traffics commonly with the relay device, and congestion information of each traffic in the relay device; a congestion information comparison section for finding information on a congestion level which quantitatively indicates difficulty of flowing of each traffic based on the congestion information obtained from the adjacent relay device and the congestion information of the relay device; a transmission scheduling adjustment section for assigning a transmission band of a bus to each traffic based on the congestion level; and a switch assignment section for shifting the switch based on a result of the assignment.
    Type: Application
    Filed: September 8, 2011
    Publication date: March 8, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: Atsushi YOSHIDA, Takao YAMAGUCHI, Tomoki ISHII
  • Publication number: 20120044942
    Abstract: Highly efficient and low latency network transmission in consideration of a difference in the traffic characteristic and a memory access load which changes moment by moment is realized. A relay device transmits data on a networked communication bus between a bus master and a memory. The relay device includes a delay time processor for obtaining information on processing delay time in other relay devices located on a plurality of transmission routes on which the data is transmitted; and a low latency route selector for selecting a memory and one of transmission routes to the memory, among the plurality of transmission routes, based on obtained information on the processing delay time regarding the plurality of transmission routes.
    Type: Application
    Filed: October 28, 2011
    Publication date: February 23, 2012
    Applicant: Panasonic Corporation
    Inventors: Takao YAMAGUCHI, Tomoki ISHII, Atsushi YOSHIDA
  • Patent number: 8121077
    Abstract: A relay device can perform high-quality communication even in a wireless mesh network where relay devices are densely arranged and interference of wireless packets is caused. The relay device includes: a representative node determining unit (605) which determines the channel used in its own cluster for intra-cluster communication to be a channel different from the channel used in neighboring cluster for intra-cluster communication, when the communication quality of its own relay device does not meet predetermined quality and no representative node exists among neighboring nodes; a joining and removal notifying unit (607) which allows a neighboring node which is not associated with any cluster to join to its own associated cluster; and a frequency channel changing unit (609) which changes the channel used for intra-cluster communication to the channel determined by the representative node determining unit (605) of the representative node.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: February 21, 2012
    Assignee: Panasonic Corporation
    Inventors: Atsushi Yoshida, Takao Yamaguchi, Tomoki Ishii
  • Patent number: 8115812
    Abstract: The present invention provides a monitoring system enabling efficient determination of code amounts for respective cameras according to the movement of an object.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: February 14, 2012
    Assignee: Panasonic Corporation
    Inventors: Atsushi Yoshida, Takao Yamaguchi, Katsuji Aoki
  • Publication number: 20120027821
    Abstract: Disclosed are cyanoacrylate polymer particles which comprise an amino acid(s) and have an average particle diameter of less than 1000 nm. The amino acid-containing particles according to the present invention can kill cancer cells by inducing apoptosis-like cell death. The particles have an especially high affinity for cell lines derived from lymphomas such as T-cell lymphoma and B-cell lymphoma. The particles can also exhibit an antiproliferative effect against some kinds of pancreatic cancer-derived cell lines. Therefore, the particles according to the present invention are useful for prevention and/or treatment of cancers.
    Type: Application
    Filed: March 3, 2010
    Publication date: February 2, 2012
    Applicant: PUBLIC UNIVERSITY CORPORATION YOKOHAMA CITY UNIVERSITY
    Inventors: Shoichi Shirotake, Atsushi Yoshida, Shumpei Yokota, Itaru Endo
  • Patent number: 8107717
    Abstract: Arrangements for inspecting a specimen on which plural patterns are formed; capturing a first image of a first area; capturing a second image of a second area in which patterns which are essentially the same with the patterns formed in the first area; creating data relating to corresponding pixels of the first and second images, for each pixel; determining a threshold for each pixel for detecting defects directly in accordance with the first and second images; and detecting defects on the specimen by processing the first and second images by using the threshold for each pixel and information of a scattered diagram of brightness of the first and second images, wherein the threshold is determined by using information of brightness of a local region of at least one of the first and second images, with the local region including an aimed pixel and peripheral pixels of the aimed pixel.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: January 31, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Shunji Maeda, Kenji Oka, Yukihiro Shibata, Minoru Yoshida, Chie Shishido, Yuji Takagi, Atsushi Yoshida, Kazuo Yamaguchi
  • Patent number: 8102761
    Abstract: A path control device included in a terminal device (300), which includes a path information generating unit (302) which generates path information indicating paths from a terminal (300) to a terminal (400), a path malfunction predicting unit (303) which predicts a malfunction on each of the relays, using the number of flows as a malfunction occurrence likelihood value, at least one of the relays that is a candidate for monitoring is determined for each path, and a bypass path selecting unit (304) which selects, when the malfunction is predicted on the at least one relay, a path that should be used for transmitting the data from the terminal (300) to the terminal (400), from the paths except the path including the relay on which the malfunction is predicted.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: January 24, 2012
    Assignee: Panasonic Corporation
    Inventors: Takao Yamaguchi, Atsushi Yoshida, Tomoki Ishii
  • Patent number: 8091685
    Abstract: A sound absorbing structure is constituted of a vibration plate and a rear air layer and is installed in a luggage compartment or trunk which is separated from a cabin in a vehicle. Sound waves entering into the luggage compartment drive the vibration plate to vibrate so that acoustic energy is converted into mechanical energy and is consumed by way of vibration of the vibration plate. By appropriately setting parameters and dimensions, the sound absorbing structure efficiently absorbs low-frequency sound such as road noise occurring due to friction of wheels of the vehicle traveling on a road.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: January 10, 2012
    Assignee: Yamaha Corporation
    Inventors: Yasutaka Nakamura, Rento Tanase, Atsushi Yoshida, Masaru Matsushita
  • Patent number: 8085667
    Abstract: A wireless relay apparatus capable of high-quality transmission of data includes a wireless control unit and a data link communication unit wirelessly receiving and transmitting data. The wireless relay apparatus also includes a congestion status determining unit determining whether a congestion caused by radio wave interference occurs in the wireless relay apparatus, and includes a data flow determining unit identifying a flow of data transmitted and received by the wireless relay apparatus and determining whether the flows intersect in the wireless relay apparatus, when the congestion status determining unit determines that there is a congestion. In addition, the wireless relay apparatus includes a transmission parameter adjustment unit adjusting transmission characteristics of a type according to a result of the determination by the data flow determining unit, from among types of transmission characteristics of radio used in at least one of the wireless control unit and the communication apparatuses.
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: December 27, 2011
    Assignee: Panasonic Corporation
    Inventors: Takao Yamaguchi, Atsushi Yoshida, Tomoki Ishii
  • Publication number: 20110309850
    Abstract: A testing device includes a pressure vessel, a mounting stand disposed in an internal space of the pressure vessel, on which a device to be tested is mounted, test electrodes, disposed in the internal space of the pressure vessel, that supply a test voltage to the device to be tested mounted on the mounting stand, and a pressurization unit that raises the pressure of the internal space of the pressure vessel. The test voltage is supplied from the test electrodes to the device to be tested mounted on the mounting stand, and testing of the device to be tested is carried out, in a condition that the pressure of the internal space of the pressure vessel is raised by the pressurization unit.
    Type: Application
    Filed: June 1, 2011
    Publication date: December 22, 2011
    Applicant: Fuji Electric Co., Ltd.
    Inventors: Atsushi Yoshida, Hiroyuki Toya, Toru Nishizawa, Seizo Uchiyama
  • Publication number: 20110224200
    Abstract: Provided is a novel prophylactic or therapeutic agent for a chorioretinal degenerative disease. The compound of formula (1) or its salt has inhibitory effects on photoreceptor cell death or visual cell death in a mouse model of light damage. Therefore, the compound or its salt is useful as a prophylactic or therapeutic agent for a chorioretinal degenerative disease such as age-related macular degeneration, retinitis pigmentosa. In the formula (1), A is a group (p1), (p2) or (p3); R1 is H, alkyl, aralkyl or OH or its ester; R2 is H or alkyl; R3 is halogen, H, alkyl or OH or its ester; R4 is halogen, H, OH, alkoxy, amino, alkylamino or cycloalkylamino, R3 and R4 may be joined to each other through N to form an unsaturated [1,2,4]oxadiazine ring; R5 is H, alkyl or cycloalkyl; m is 0 or 1; and n is 0 or 1.
    Type: Application
    Filed: November 18, 2009
    Publication date: September 15, 2011
    Inventors: Shin-ichiro Hirai, Atsushi Yoshida
  • Patent number: 8016489
    Abstract: A sliding bearing 1 includes an upper casing 3 having an annular lower surface 2; a lower casing 5 which is superposed on the upper casing 3 so as to be rotatable about an axis O of the upper casing 3 and has an annular upper surface 4 opposed to the annular lower surface 2; an annular thrust sliding bearing piece 6 disposed in an annular space 36 between the annular lower surface 2 and the annular upper surface 4; and a seal means 38 disposed on an outer peripheral side of the annular space 36.
    Type: Grant
    Filed: May 10, 2007
    Date of Patent: September 13, 2011
    Assignee: Oiles Corporation
    Inventors: Ryohei Kaneko, Atsushi Yoshida
  • Patent number: 8011472
    Abstract: A sound absorbing structure is constituted of a housing having a hollow portion and an opening and a vibration member composed of a board or diaphragm. The vibration member is a square-shaped material having elasticity composed of a synthetic resin and is bonded to the opening of the housing, thus forming an air layer closed inside the sound absorbing structure by the housing and the vibration member. In the sound absorbing structure, when the lateral/longitudinal dimensions of the air layer and characteristics of the vibration member (e.g. a Young's modulus, thickness, and Poisson's ratio) are set such that the fundamental frequency of a vibration occurring in a bending system falls within 5% and 65% of the resonance frequency of a spring-mass system, a vibration mode having a large amplitude occurs in a frequency band lower than the resonance frequency of the spring-mass system, this improving the sound absorption coefficient.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: September 6, 2011
    Assignee: Yamaha Corporation
    Inventors: Rento Tanase, Yasutaka Nakamura, Atsushi Yoshida, Masaru Matsushita, Kunio Hiyama
  • Publication number: 20110187790
    Abstract: There is a first process of pressurizing the liquid introduced into the discharge pipe by driving a pump device and transferring the liquid to one end side of the discharge pipe; a second process of applying an electric field between a liquid reception unit, which is disposed to face the surface of the nozzle openings of the liquid ejecting head in a non-contact state, communicates with the other end side of the discharge pipe and is ejected with liquid from the nozzles, and the surface of the nozzle openings; a third process of detecting a change in voltage based on electrostatic induction when the pressurizing of the liquid in the discharge pipe due to the pump device is released; and a fourth process of detecting the discharge state of the liquid from the discharge pipe on the basis of detection result of the change in voltage.
    Type: Application
    Filed: January 27, 2011
    Publication date: August 4, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Atsushi YOSHIDA