Patents by Inventor Kouji Ikeda
Kouji Ikeda 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: 20110102305Abstract: A light-emitting device includes a plurality of pixels including an organic electroluminescent element, a drive transistor driving the organic electroluminescent element, and a hold capacitor holding a control signal for controlling the drive transistor, the organic electroluminescent element being electrically connected to one of a source electrode and a drain electrode of the drive transistor. The hold capacitor includes a metal layer, an insulating layer, and a semiconductor layer in this order. The semiconductor layer receives light emitted from the organic electroluminescent element. One of the metal layer and the semiconductor layer of the hold capacitor is electrically connected to a gate electrode of the drive transistor, and the other of the metal layer and the semiconductor layer of the hold capacitor is specified at a fixed potential.Type: ApplicationFiled: October 25, 2010Publication date: May 5, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Masahiro Tamura, Akiharu Takabayashi, Kouji Ikeda
-
Patent number: 7930431Abstract: A contents using method is provided that enables a user to watch and listen to freely same contents by a simple operation by either of an image display device or a server and enables the user to use the server for other applications without a need for paying attention to transfer of an image file from the server to an electronic device. The contents using method includes a first step of storing contents by the server at a date and at a time both being designated by the user, a second step of converting quality of contents by the server according to storage capacity or display capability of a storage section and a display section making up a PDA (Personal Digital Assistant), and a third step of transferring contents obtained after the quality conversion, after having confirmed connection between the server and the PDA, from the server to the PDA.Type: GrantFiled: May 7, 2003Date of Patent: April 19, 2011Assignee: NEC CorporationInventors: Minoru Kuroiwa, Kouji Ikeda
-
Publication number: 20110025653Abstract: A method for driving a display apparatus uses self luminous elements that allows for favorable display by suppressing a luminance variation accompanying change of a total current amount at a time of on-off drive. In a display apparatus that performs periodic on-off drive, pixels are divided into at least two groups having different light emitting timings with the timing for writing data to the pixels as a reference. Light emission is controlled so that when one group does not emit light, the other group emits light. Alternatively, light emission is controlled so that when one group emits light, the other group does not emit light. In this manner, either the period in which the two groups do not flow current at the same time or the period in which the two groups flow current at the same time hardly exists in one field period.Type: ApplicationFiled: June 22, 2010Publication date: February 3, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Kouji Ikeda, Masami Iseki
-
Publication number: 20110001689Abstract: A light emitting element is provided to allow for resetting a shift register while keeping a frame narrow without increasing complexity of a shift register circuit. A display apparatus has a data line, a scanning line, a pixel circuit, a shift register circuit, a first power supply supplying a voltage to the shift register circuit and a second power supply supplying a voltage to the pixel circuit. One end of the scanning line is connected to an output of the shift register circuit, and writing of a data signal from the data line to the pixel circuit can be controlled by a scanning signal from the scanning line. When the first power supply is on, any one of a high-level signal and a low-level signal is input into the shift register circuit for the number of stages of the shift register, and thereafter, the second power supply is turned on.Type: ApplicationFiled: June 25, 2010Publication date: January 6, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Hiroyuki Maru, Tatsuhito Goden, Fujio Kawano, Kouji Ikeda
-
Publication number: 20100328365Abstract: A display apparatus includes: a light emitting element, a source which supplies a current to the light emitting element from a drain; a capacitor one end of which is connected to a gate of the transistor; a gate voltage setting circuit detachably connected to the gate of the transistor, the gate voltage setting circuit setting the gate voltage of the transistor to an initial voltage; and a capacitor terminal voltage setting circuit which is connected to another end of the capacitor, and which sets the voltage of the another end of the capacitor to any of data voltage corresponding to image information and constant reference voltage which does not depend on the image information, wherein a range, in which a current flowing through the light emitting element varies depending on the data voltage, is adjusted by changing one of the initial voltage and the reference voltage.Type: ApplicationFiled: June 7, 2010Publication date: December 30, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Kouji Ikeda, Masami Iseki, Fujio Kawano, Hiroyuki Maru, Tatsuhito Goden, Takanori Yamashita
-
Publication number: 20100270678Abstract: A semiconductor device including a plurality of circuits that includes a transistor, where a semiconductor layer forming the transistor includes a first contact pad, a first part that is connected to the first contact pad and that extends in a direction intersecting a short direction of a pitch with which the circuits are arranged, a second part that extends from the first part in the short direction, and a second contact pad including the first part and the second part that are provided between the first contact pad and the second contact pad, where the second part overlaps an electrode layer across an insulating layer.Type: ApplicationFiled: April 19, 2010Publication date: October 28, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Kouji Ikeda, Takanori Yamashita, Masami Iseki
-
Patent number: 7793174Abstract: A SiP includes a logic chip and a memory chip. The memory chip includes a memory circuit to be tested, and the logic chip includes an internal logic circuit and a test processor electrically connected therewith. The test processor is connected with an access terminal of the memory circuit and supplies a test signal input from an external terminal to the access terminal to thereby test the memory circuit. The test processor includes a high-speed test control circuit to adjust signal delay and supplies a test signal from the external terminal to the access terminal through the high-speed test control circuit when performing high-speed test at an actual operation speed.Type: GrantFiled: March 16, 2007Date of Patent: September 7, 2010Assignee: NEC Electronics CorporationInventors: Takashi Hattori, Yumiko Hashidume, Tatsuhiro Nishino, Kouji Ikeda
-
Publication number: 20100128160Abstract: A display apparatus including: data lines; scanning lines arranged to cross the data lines; pixel circuits arranged along the data lines and the scanning lines, such that each of the pixel circuits corresponds to each of intersections between the data lines and the scanning lines; image signal lines for transmitting image signal; and switches, each arranged correspondingly to each of the data lines, for connecting each of the data lines to each one of the image signal lines, wherein the data lines are arranged such that adjacent two data lines are close to each other, and are connected simultaneously by the switches to different two of the image signal lines.Type: ApplicationFiled: November 16, 2009Publication date: May 27, 2010Applicants: CANON KABUSHIKI KAISHA, HITACHI DISPLAYS, LTD.Inventors: Hiroyuki Maru, Masami Iseki, Fujio Kawano, Tatsuhito Goden, Takanori Yamashita, Kouji Ikeda, Takeshi Izumida, Hiroshi Kageyama
-
Publication number: 20090289966Abstract: A display apparatus for driving light emitting elements to emit light at a timing shifted according to the order of scanning lines, is arranged to control the light emission intensity of the light emitting element in accordance with an image signal and include a drive unit for driving the light emitting elements of the respective scanning lines in a light emission pattern including a first impulse operation period light emission pattern and a second impulse operation period light emission pattern.Type: ApplicationFiled: August 20, 2008Publication date: November 26, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Kouji Ikeda, Kohichi Nakamura, Masami Iseki
-
Publication number: 20090242354Abstract: A coin discriminating device has a detecting part, a first switching part, a storage part, and a control part. The detecting part has a first sensor including a pair of coils, and an oscillating circuit, and is supplied with voltage from a power source, and in addition, outputs a detection signal varied by a coin passing between the coils. The first switching part switches magnetic connection of the coils between an in-phase connection and a reversed-phase connection a plurality of times while the coin passes between the coils. The control part compares the detection signal from the detecting part and a reference signal stored in the storage part so as to determine authentication and a denomination of the coin.Type: ApplicationFiled: July 10, 2007Publication date: October 1, 2009Applicant: PANASONIC CORPORATIONInventors: Satoshi Miyauchi, Takehiko Nara, Tooru Ueki, Kouji Ikeda
-
Publication number: 20090085908Abstract: A driving circuit for a light-emitting device outputs a drive current from an output terminal to the light-emitting device in accordance with a signal current input from an input terminal. The driving circuit includes a drive transistor, a capacitor connected between a gate and a source of the driving transistor, a resistance device and a first switch arranged in series between a drain of the drive transistor and the input terminal, a second switch configured to connect the gate of the drive transistor and a first terminal of the resistance device when the first switch is closed, the first terminal being more remote from the drive transistor, and a third switch disposed in a path through which a drain current of the drive transistor flows from the output terminal to the light-emitting device. The resistance device increases its resistance in accordance with a cumulative amount of a passing current.Type: ApplicationFiled: September 22, 2008Publication date: April 2, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Somei Kawasaki, Kouji Ikeda
-
Publication number: 20070245200Abstract: A SiP includes a logic chip and a memory chip. The memory chip includes a memory circuit to be tested, and the logic chip includes an internal logic circuit and a test processor electrically connected therewith. The test processor is connected with an access terminal of the memory circuit and supplies a test signal input from an external terminal to the access terminal to thereby test the memory circuit. The test processor includes a high-speed test control circuit to adjust signal delay and supplies a test signal from the external terminal to the access terminal through the high-speed test control circuit when performing high-speed test at an actual operation speed.Type: ApplicationFiled: March 16, 2007Publication date: October 18, 2007Applicant: NEC ELECTRONICS CORPORATIONInventors: Takashi Hattori, Yumiko Hashidume, Tatsuhiro Nishino, Kouji Ikeda
-
Publication number: 20060209058Abstract: An electronic paper having a display unit formed of a flexible sheet. The electronic paper comprises the display unit composed of a light-emitting device and a switching device and a drive unit composed of a drive circuit disposed at one edge of the display unit. The light-emitting device and the switching device both operate at low operating frequencies and are made of a flexible organic semiconductor. Since the hardness of the drive unit can be high, a semiconductor device having a high operating frequency such as a C-MOS is provided to the drive unit. Though the switching time is relatively long, the data setting time can be short. As a result, a sharp image can be produced.Type: ApplicationFiled: March 31, 2004Publication date: September 21, 2006Inventors: Tetsurou Nakamura, Takanori Nakano, Masaichirou Tatekawa, Atsuhi Sogami, Kouji Ikeda, Kazuo Nishimura, Masaki Kondou, Ken-ichi Masumoto, Kouichi Takamine
-
Publication number: 20060208976Abstract: A residual image effect is suppressed to improve quality of display of an active matrix type display device. An electric potential switching circuit switches an electric potential on a capacitor line from a first capacitor electric potential (ground electric potential, for example) to a second capacitor electric potential (power supply electric potential, for example) during a blanking period. At that time, an electric potential at a gate of a driver transistor is raised by capacitive coupling through a storage capacitor. As a result, the electric potential at the gate of the driver transistor becomes higher than an electric potential at a source of the driver transistor. Assuming that holes are trapped in a gate insulation film of the driver transistor due to writing-in of a display signal during a preceding frame period, the holes are extracted from the gate insulation film to the source or a drain of the driver transistor. With this, electric characteristics of the driver TFT are initialized.Type: ApplicationFiled: March 3, 2006Publication date: September 21, 2006Applicant: SANYO ELECTRIC CO., LTD.Inventor: Kouji Ikeda
-
Patent number: 7055922Abstract: An ink jet head includes: actuators each including a scanning electrode, a piezoelectric element and a recording electrode and arranged in a matrix pattern of n rows by m columns (where n and m are natural numbers equal to or greater than two) in terms of electrical circuit; and a driving circuit for supplying a scanning signal to the scanning electrodes for each column, while supplying a recording signal to each row of the recording electrodes in synchronization with the scanning signal. The actuators are geometrically arranged in n rows by m columns. A relay terminal, extending in a vertical direction, is provided in at least one inter-column space between vertical columns of the actuators for relaying signals from the driving circuit to the recording electrodes and the scanning electrodes. The recording electrodes and the scanning electrodes are connected to the relay terminal via lead wires extending in a horizontal direction.Type: GrantFiled: July 20, 2004Date of Patent: June 6, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kouji Ikeda, Koichi Baba, Masaharu Oyama
-
Patent number: 7020584Abstract: Upon providing on-line vehicle information using an information providing apparatus that belongs to a vehicle manufacturer, and a user terminal possessed by a user, information (e.g., including photographed images during assembly, position information during transportation, and the like) associated with the progress status of a specific vehicle corresponding to identification information which is received from the terminal and specifies the user is acquired from information associated with the progress status of a plurality of vehicles before shipping, which information is stored in a progress management DB, and the acquired information is provided to the user terminal from which the identification information was output.Type: GrantFiled: January 15, 2002Date of Patent: March 28, 2006Assignee: Mazda Motor CorporationInventors: Hiroki Takaoka, Satoshi Karasugo, Kouji Ikeda, Makoto Goto, Yoshiteru Ueda
-
Publication number: 20050270138Abstract: A vehicle receiver registers unique IDs of a plurality of portable transmitters in memory regions of a vehicle internal memory, and the plurality of portable transmitters registers each unique ID in a memory region of each portable internal memory. During a period for which an operation mode of the vehicle receiver is changed to a registration mode, when a predetermined operation member of the portable transmitter is operated according to a predetermined operation aspect, the IDs are transmitted to the vehicle receiver and are sequentially written in memory regions of the vehicle internal memory.Type: ApplicationFiled: June 2, 2005Publication date: December 8, 2005Inventor: Kouji Ikeda
-
Patent number: 6969138Abstract: An ink jet recording apparatus includes an ink jet head, a reference pulse generation circuit, and switch circuits. The reference pulse generation circuit is a circuit for generating, at a predetermined cycle, a first reference pulse P4a based on which a driving pulse is produced. A preliminary pulse P1 is for vibrating an ink meniscus in the tip portion of a nozzle. A discharge pulse P2 is for discharging an ink droplet through the nozzle. The switch circuits selectively input, to piezoelectric actuators, the preliminary pulse P1 and the discharge pulse P2 generated by the reference pulse generation circuit.Type: GrantFiled: August 5, 2003Date of Patent: November 29, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kouji Ikeda, Koichi Baba, Masaichiro Tatekawa
-
Publication number: 20050099263Abstract: A keyless entry system includes an onboard device, and a portable device which performs radio communication with the onboard device. The onboard device includes a door lock mechanism, a power window mechanism, and an ECU. The portable device includes a memory for storing setting information for closing mode and opening modes (first and second modes) of a window, and a mode selection switch for selecting either the opening mode or closing mode and changing the setting information in the memory according to the selected mode. On the basis of an answer signal b3 from the portable device, the ECU automatically locks the door, drives the window and stops the window at its predetermined position based on the setting information stored in the memory.Type: ApplicationFiled: November 9, 2004Publication date: May 12, 2005Inventor: Kouji Ikeda
-
Publication number: 20050052492Abstract: An ink jet head includes: actuators each including a scanning electrode, a piezoelectric element and a recording electrode and arranged in a matrix pattern of n rows by m columns (where n and m are natural numbers equal to or greater than two) in terms of electrical circuit; and a driving circuit for supplying a scanning signal to the scanning electrodes for each column, while supplying a recording signal to each row of the recording electrodes in synchronization with the scanning signal. The actuators are geometrically arranged in n rows by m columns. A relay terminal, extending in a vertical direction, is provided in at least one inter-column space between vertical columns of the actuators for relaying signals from the driving circuit to the recording electrodes and the scanning electrodes. The recording electrodes and the scanning electrodes are connected to the relay terminal via lead wires extending in a horizontal direction.Type: ApplicationFiled: July 20, 2004Publication date: March 10, 2005Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Kouji Ikeda, Koichi Baba, Masaharu Oyama