Patents by Inventor Tadaaki Ishikawa

Tadaaki 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: 11948925
    Abstract: A light emitting device includes a substrate including first, second, third and fourth wiring portions on a top surface of a base member and arrayed in a first direction, and a connection wiring portion connecting the second and third wiring portions. The connection wiring portion includes first and second connection ends respectively connected with the second and third wiring portions, and a connection central portion connecting the first and second connection ends and having a maximum width in a second direction different from each of a maximum width of the first connection end and a maximum width of the second connection end. In the second direction, at least a part of the connection wiring portion has a width narrower than each of a maximum width of the second wiring portion and a maximum width of the third wiring portion.
    Type: Grant
    Filed: October 4, 2022
    Date of Patent: April 2, 2024
    Assignee: NICHIA CORPORATION
    Inventors: Takuya Nakabayashi, Tadaaki Ikeda, Tetsuya Ishikawa
  • Patent number: 10222791
    Abstract: An operator of a nuclear plant is provided with an action margin time up to the execution of a next action to be performed in response to a detected accident based on sensor signals received from sensors for the plant. The operator is provided with a displayed graph showing the received sensor signals, estimated sensor signals for the future, the action margin time and an action threshold value corresponding to the next action. Accordingly, the operator can readily grasp how much time is available to perform the next action before the received sensor signals are predicted to exceed the action threshold value.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: March 5, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Masaki Kanada, Setsuo Arita, Yoshihiko Ishii, Kenichi Katono, Tadaaki Ishikawa, Ryota Kamoshida
  • Patent number: 9950587
    Abstract: An inclination detection apparatus detects the inclination of a mobile body with three marker rods having different inclinations with respect to one another. The mobile body is provided with a laser range finder irradiating surrounding objects with a laser beam to light a point on each of the three marker rods as a reflection point from which the laser beam is reflected back. The inclination detection apparatus includes a processor and a storage device storing relative positional information of the three marker rods. The processor obtains positional information of reflection points, obtains relative positions of the reflection points on the three marker rods by determining points on the three marker rods corresponding to the obtained positional information based on the relative positional information of the three marker rods, and identifies an inclination plane including the obtained relative positions of the reflection points as the inclination of the mobile body.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: April 24, 2018
    Assignee: HITACHI, LTD.
    Inventor: Tadaaki Ishikawa
  • Patent number: 9902230
    Abstract: An inclination detection apparatus detects the inclination of a mobile body with three marker rods having different inclinations with respect to one another. The mobile body is provided with a laser range finder irradiating surrounding objects with a laser beam to light a point on each of the three marker rods as a reflection point from which the laser beam is reflected back. The inclination detection apparatus includes a processor and a storage device storing relative positional information of the three marker rods. The processor obtains positional information of reflection points, obtains relative positions of the reflection points on the three marker rods by determining points on the three marker rods corresponding to the obtained positional information based on the relative positional information of the three marker rods, and identifies an inclination plane including the obtained relative positions of the reflection points as the inclination of the mobile body.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: February 27, 2018
    Assignee: HITACHI, LTD.
    Inventor: Tadaaki Ishikawa
  • Publication number: 20170097637
    Abstract: An operator of a nuclear plan is provided with a margin time up to the execution of the action at the time of an accident. The system includes: a sensor signal input device; an accident event estimation device; a procedure manual database; a procedure manual selection device; a procedure automatic check device that checks items in the procedure manual and determines a next action using the sensor signal; a plant state analysis device that analyzes a state of the plant in a case where the actions are executed at a plurality of action timings based on the accident event and the next action, and calculates predicted values of the sensor signals; an action threshold value database in which an action threshold values of the sensor signals corresponding to the action procedure at the time of the accident are stored; and an action margin time calculation device.
    Type: Application
    Filed: April 4, 2014
    Publication date: April 6, 2017
    Inventors: Masaki KANADA, Setsuo ARITA, Yoshihiko ISHII, Kenichi KATONO, Tadaaki ISHIKAWA, Ryota KAMOSHIDA
  • Publication number: 20160280036
    Abstract: An inclination detection apparatus detects the inclination of a mobile body with three marker rods having different inclinations with respect to one another. The mobile body is provided with a laser range finder irradiating surrounding objects with a laser beam to light a point on each of the three marker rods as a reflection point from which the laser beam is reflected back. The inclination detection apparatus includes a processor and a storage device storing relative positional information of the three marker rods. The processor obtains positional information of reflection points, obtains relative positions of the reflection points on the three marker rods by determining points on the three marker rods corresponding to the obtained positional information based on the relative positional information of the three marker rods, and identifies an inclination plane including the obtained relative positions of the reflection points as the inclination of the mobile body.
    Type: Application
    Filed: January 11, 2016
    Publication date: September 29, 2016
    Applicant: HITACHI, LTD.
    Inventor: Tadaaki Ishikawa
  • Publication number: 20160195872
    Abstract: An object of the invention is to provide a system for assisting operation at the time of a plant accident, which, even if a device malfunctions at the time of the plant accident, can determine normality of a sensor without being influenced by the malfunction. A system for assisting operation at the time of a plant accident, includes: a phenomenon identification apparatus for identifying a state of a plant; a plant behavior analysis apparatus for predicting progress of a process state after a phenomenon occurs by using at least a phenomenon identification result as an initial condition of plant behavior analysis; and a sensor normality determination apparatus for determining normality of a sensor by comparing a result of prediction of the progress of the process state which is output from the plant behavior analysis apparatus with a sensor signal.
    Type: Application
    Filed: September 11, 2013
    Publication date: July 7, 2016
    Inventors: Setsuo ARITA, Masaki KANADA, Yoshihiko ISHII, Ryota KAMOSHIDA, Tadaaki ISHIKAWA, Kenichi KATONO
  • Publication number: 20160077654
    Abstract: To eliminate or reduce stress for an operator who operates an operation panel. A touch panel-type operation panel includes a display with touch panel including an image display surface for displaying an operation part and a control device. The display with touch panel detects approach of an operation finger to the operation part and the position of the operation part and outputs signals of the detected approach of the operation finger and the detected position. The control device predicts and analyzes, in response to an input of the signals of the approach of the operation finger and the position, a state of a control target by operation corresponding to the operation part with reference to state data of the control target, determines appropriateness of the predicted and analyzed operation, and outputs a result of the determination.
    Type: Application
    Filed: October 11, 2013
    Publication date: March 17, 2016
    Inventors: Tadaaki ISHIKAWA, Kenichi KATONO, Setsuo ARITA, Masaki KANADA, Yoshihiko ISHII, Ryota KAMOSHIDA
  • Publication number: 20150269505
    Abstract: An object of the invention is to provide an operation support system for plant accidents that estimates events reflecting plant states changing momentarily at plant accidents. The invention includes an event narrow-down device that narrows down occurring event candidates based on at least one of a sensor signal, a device state signal, and an alarm signal and a discriminant rule, an event analysis device that analyzes a plant behavior based on a plurality of event narrow-down results as output of the event narrow-down device, the sensor signal, the device state signal, and the alarm signal, and an event estimation device that estimates an occurring event by comparing an analysis result from an analysis of a process state as output of the event analysis device and the sensor signal, wherein the event estimation device outputs the analysis result of the process state and the sensor signal corresponding to the occurring event as an event estimation result.
    Type: Application
    Filed: February 19, 2015
    Publication date: September 24, 2015
    Inventors: Setsuo ARITA, Yoshihiko ISHII, Masaki KANADA, Ryota KAMOSHIDA, Kenichi KATONO, Tadaaki ISHIKAWA
  • Patent number: 8674849
    Abstract: An information display terminal allows a user to grasp rapidly and surely the direction to a destination, and can guide the user to the destination without placing a burden on the user. The information display terminal is provided at a passage, and its display screen displays a route guidance screen that guides a route to the destination. The route guidance screen displays a pseudo-action image that shows the walking motion, and a destination display information image indicating a destination name such as “Subway Ticket Gate”. The action image shows the motion of walking toward the destination, but the display position does not change. The destination display information image is displayed in front of the action image in the advancing direction.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: March 18, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Takeshi Hoshino, Youichi Horii, Tadaaki Ishikawa, Yukiko Ichige, Hiroki Sato
  • Publication number: 20120268617
    Abstract: An electronic camera includes an imaging section, an imaging controlling section, and an image processing section. The imaging section performs imaging of a subject image. The imaging controlling section makes the imaging section perform a photographing of moving image at a first frame rate at a time of performing moving image photographing, and makes the imaging section obtain images at a second frame rate which is a frame rate higher than the first frame rate when receiving an instruction of still image recording at the time of performing the moving image photographing. The image processing section generates a still image for recording by superimposing a plurality of images at the second frame rate.
    Type: Application
    Filed: April 30, 2012
    Publication date: October 25, 2012
    Applicant: NIKON CORPORATION
    Inventor: Tadaaki ISHIKAWA
  • Publication number: 20120253672
    Abstract: An information display terminal allows a user to grasp rapidly and surely the direction to a destination, and can guide the user to the destination without placing a burden on the user. The information display terminal is provided at a passage, and its display screen displays a route guidance screen that guides a route to the destination. The route guidance screen displays a pseudo-action image that shows the walking motion, and a destination display information image indicating a destination name such as “Subway Ticket Gate”. The action image shows the motion of walking toward the destination, but the display position does not change. The destination display information image is displayed in front of the action image in the advancing direction.
    Type: Application
    Filed: February 15, 2012
    Publication date: October 4, 2012
    Inventors: Takeshi HOSHINO, Youichi Horii, Tadaaki Ishikawa, Yukiko Ichige, Hiroki Sato
  • Patent number: 7696897
    Abstract: The prior art in this field had a display portion of electronic paper at a part of a shelf and showed a problem that the display portion and the goods were hardly co-related to each other in response to the arrangement of the goods. In view of the foregoing, plural images arranged in response to the number of stages of the shelves to be displayed are irradiated with a light source after each of the images is corrected in correspondence with the optical path length ranging from the light source to the end of each of the shelves, each of the images is guided to the end of each of the shelves by plural reflector members and then the images are displayed at the ends.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: April 13, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Youichi Horii, Tadaaki Ishikawa, Takeshi Hoshino, Isshu Nakajima, Yukinobu Maruyama
  • Publication number: 20090219247
    Abstract: An information display terminal includes a flexible display unit that displays information and is configured to be flexible; bend sensors that are incorporated in the display unit and detect a bending degree by bending the display unit; and an image display control unit that controls a scrolling speed of the information displayed on the display unit in accordance with a detection output of the bend sensor, wherein a page turn-over display of the information is performed at the scrolling speed in accordance with the bending degree of the display unit. The information display terminal provides an interface for performing content browsing in a virtual world with the same sense of reading an actual book.
    Type: Application
    Filed: February 4, 2009
    Publication date: September 3, 2009
    Inventors: Junichiro Watanabe, Arito MOCHIZUKI, Tadaaki ISHIKAWA
  • Publication number: 20080284727
    Abstract: An input apparatus connected to an information processing apparatus is provided, which includes an input unit to enter a key, a transmission unit to make itself recognized as a keyboard by an operating system (OS) on the information processing apparatus and transmit to the information processing apparatus a key code signal corresponding to the input from the input unit, a receiving unit to receive from the information processing apparatus a signal representing an electrically driven lighting state of the input apparatus, and a control unit to check the signal received from the information processing apparatus and representing the electrically driven lighting state and control transmission of the key code.
    Type: Application
    Filed: May 7, 2008
    Publication date: November 20, 2008
    Inventor: Tadaaki ISHIKAWA
  • Publication number: 20080055087
    Abstract: The prior art in this field had a display portion of electronic paper at a part of a shelf and showed a problem that the display portion and the goods were hardly co-related to each other in response to an arrangement of the goods. In addition, it was necessary to prepare a special display substrate for changing all the shelf lengths into a display portion and its price was expensive. It was necessary to provide a signal line and a wiring for power supply up to the display portion and so it was necessary to perform a wiring at the shelf surface with opaque raw material or perform a connecting work for the wiring every time when the shelf was transferred.
    Type: Application
    Filed: July 11, 2007
    Publication date: March 6, 2008
    Inventors: Youichi Horii, Tadaaki Ishikawa, Takeshi Hoshino, Isshu Nakajima, Yukinobu Maruyama
  • Patent number: 7298972
    Abstract: An optical switch for switching communication light beams propagating through a plurality of optical fibers. The switch includes a plurality of input-side lenses, a plurality of moving mirrors, a plurality of output-side lenses, light emitting units, and light receiving units arranged for optical communication. The plurality of input-side lenses include first input-side lenses to which communication light beams coming from first external units and propagating through input-side optical fibers connect optically and second input-side lenses to which the light beams from the light emitting units connect optically.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: November 20, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Ryoji Okada, Tadaaki Ishikawa
  • Publication number: 20070244613
    Abstract: An in-vehicle apparatus (such as a car navigation system or a car audio) equipped with multiple detectors mounted around the operation portion to make it possible to detect from which direction a hand has approached the operation portion. The fields of view and the positions of the detectors are so determined that the detectors have no dead angle. If the positional relationship between passengers in the vehicle is previously known, it can be discerned from the detected direction as to whether the operator is the driver or a fellow passenger. At the same time, the multiple detectors arranged around the operation portion can also be used as detectors for simple operations utilizing hand waving that can be performed by the driver during driving.
    Type: Application
    Filed: April 10, 2007
    Publication date: October 18, 2007
    Inventors: Tadaaki Ishikawa, Yukinobu Maruyama, Takaaki Ishii, Rieko Otsuka
  • Publication number: 20070097077
    Abstract: Provided is a coordinate pointing device including a detecting unit for detecting movement of a main body of the coordinate pointing device, a signal processing unit for outputting a coordinate input signal based on information detected by the detecting unit, and a switching unit for switching a valid state in which the detecting unit detects the movement of the main body of the coordinate pointing device and an invalid state in which the detecting unit does not detect the movement of the main body.
    Type: Application
    Filed: October 25, 2006
    Publication date: May 3, 2007
    Inventors: Tadaaki ISHIKAWA, Youichi Horii, Takeshi Hoshino
  • Patent number: 7165898
    Abstract: An optical module for an optical device and an optical fiber is constituted by a pre-molded plastic package. In forming the plastic package, the main flowing direction of the molding resin is substantially parallel with the optical axis of the optical fiber. The optical module is formed by molding the resin by injection using pressure and then solidifying the resin. When the plastic package is formed by comprehensive molding, the flowing direction of the resin is parallel with the optical axis direction of the optical fiber to be installed in the optical module. As a result, for comprehensive molding, the molding pressure applied to the optical fiber is reduced. By using the resin case that is formed, the resulting package exhibits high rigidity and low thermal expansion properties in connection with the flowing direction of the resin, thus reducing the external stress and thermal stress applied to the optical fiber.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: January 23, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Takeshil Kato, Koji Yoshida, Toshinori Hirataka, Toshiaki Ishii, Kazuyuki Fukuda, Tadaaki Ishikawa, Toshimasa Miura, Tsutomu Kono, Kimio Tatsuno