Patents by Inventor Seiji Yonekura
Seiji Yonekura 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).
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Patent number: 6849128Abstract: A device for producing a color filter includes a part for storing a solution in which a light transmitting material is dissolved, a part for feeding the solution to a tip of a flying electrode, a part for applying a voltage between the tip of the flying electrode and an electro-conductive material of a color filter substrate so as to form an electrostatic field, and a part for relatively shifting the tip of the flying electrode and the color filter substrate with respect to one another in at least one of a perpendicular direction and to a horizontal direction. The solution is formed into a stringy beam which is let to fly onto the color filter substrate so that the solution is injected into a concavity formed and surrounded by a black matrix on the color filter substrate, arid forms red, green and blue light emitting layers.Type: GrantFiled: June 3, 2003Date of Patent: February 1, 2005Assignee: Hitachi, Ltd.Inventors: Seiji Yonekura, Yoshinobu Fukano, Mamoru Okano, Yasuo Imanishi, Sukekazu Aratani, Yoshiharu Nagae
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Patent number: 6776844Abstract: A production device to produce an organic EL display includes a solution in which a light emitting material is dissolved, and a flying electrode to receive solution from the container. A voltage is applied between the tip of the flying electrode and an electrically conductive material of an organic EL substrate to form an electrostatic field, and the tip of the flying electrode and the organic EL substrate are shifted relative to one another in at least one of a perpendicular direction and a horizontal direction. With this arrangement, the solution is formed into a stringy beam from the tip of the flying electrode to it fly onto the organic EL, substrate, thereby injecting the solution into a concavity formed and surrounded by banks on the organic EL substrate, and forming red, green and blue light emitting layers.Type: GrantFiled: March 26, 2002Date of Patent: August 17, 2004Assignee: Hitachi, Ltd.Inventors: Seiji Yonekura, Yoshinobu Fukano, Mamoru Okano, Yasuo Imanishi, Sukekazu Aratani, Yoshiharu Nagae
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Publication number: 20030201550Abstract: A device for producing a color filter includes a part for storing a solution in which a light transmitting material is dissolved, a part for feeding the solution to a tip of a flying electrode, a part for applying a voltage between the tip of the flying electrode and an electro-conductive material of a color filter substrate so as to form an electrostatic field, and a part for relatively shifting the tip of the flying electrode and the color filter substrate to a perpendicular direction and to a horizontal direction. The solution is formed into a stringy beam which is let to fly onto the color filter substrate so that the solution is injected into a concavity formed and surrounded by a black matrix on the color filter substrate, and forms red, green and blue light emitting layers.Type: ApplicationFiled: June 3, 2003Publication date: October 30, 2003Inventors: Seiji Yonekura, Yoshinobu Fukano, Mamoru Okano, Yasuo Imanishi, Sukekazu Aratani, Yoshiharu Nagae
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Patent number: 6604816Abstract: The recording electrodes and the control electrodes of an ink jet recording head are alternately arranged on a substrate. Ink in which coloring material is distributed in a solvent is supplied to the recording electrode so that the ink can flow in the direction of the length of the recording electrode. An ink circulation part is provided for collecting surplus ink from the point of the recording electrode from which ink is discharged. As a result, an ink jet recorder, which can produce a high definition image without shifting the ink impact position on the recording medium, can be produced.Type: GrantFiled: December 28, 2001Date of Patent: August 12, 2003Assignee: Hitachi, Ltd.Inventors: Seiji Yonekura, Yoshinobu Fukano, Mamoru Okano, Tatsuo Igawa, Kazuhito Masuda
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Patent number: 6557981Abstract: An ink jet recording head has a plurality of ink-discharge electrodes and control electrodes and an opposed electrode arranged at a fixed spacing and grounded. A pulse voltage with a reversed polarity is applied to the control electrodes in synchronization with the superimposition of the pulse voltage on a bias voltage applied to the ink-discharge electrode when the ink is discharged. As a result, an ink jet recording apparatus, which can decrease the pulse voltage needed to discharge the ink, is provided with a simple configuration.Type: GrantFiled: September 18, 2001Date of Patent: May 6, 2003Assignee: Hitachi, Ltd.Inventors: Yoshinobu Fukano, Seiji Yonekura, Mamoru Okano, Tatsuo Igawa, Kazuhito Masuda
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Publication number: 20020149313Abstract: This invention provides a production device of organic EL display which can form uniform organic light emitting layer for red-, green- and blue-colored light evenly and in a high reliability for every pixel and can make a full color display.Type: ApplicationFiled: March 26, 2002Publication date: October 17, 2002Inventors: Seiji Yonekura, Yoshinobu Fukano, Mamoru Okano, Yasuo Imanishi, Sukekazu Aratani, Yoshiharu Nagae
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Patent number: 6443560Abstract: An ink jet recording apparatus capable of obtaining a highly precise image for stabilizing an amount of ink to be flied onto a recording medium by supplying and recovering the ink, in an ink discharge unit within the recording head, due to a difference in height of positions where two ink chambers within the ink discharge unit are arranged.Type: GrantFiled: September 5, 2000Date of Patent: September 3, 2002Assignee: Hitachi, Ltd.Inventors: Mamoru Okano, Yoshinobu Fukano, Seiji Yonekura, Tatsuo Igawa, Kazuhito Masuda
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Patent number: 6412916Abstract: An ink jet printer is of a small size and is capable of printing high-quality images, wherein an ink with a colorant dispersed in a solvent is ejected in a direction lower than a horizontal level and is adhered to a surface of a recording medium. The recording medium is conveyed while being spaced a constant distance from ink ejecting electrodes, thereby stabilizing an electric field induced between the ink ejecting electrodes and the recording medium and stabilizing the amount of the ink ejected.Type: GrantFiled: June 27, 2000Date of Patent: July 2, 2002Assignee: Hitachi, Ltd.Inventors: Mamoru Okano, Atsushi Onose, Shigetaka Fujiwara, Yoshinobu Fukano, Seiji Yonekura, Yoshiharu Nagae
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Patent number: 6328426Abstract: A printer device includes a plurality of discharge electrodes provided in a slit to which ink containing charged pigment particles is supplied, a plurality of opposing electrodes opposing the plurality of discharge electrodes, a pulse electric field applicator for forming a pulse electric field between the plurality of discharge electrodes and the plurality of opposing electrodes, and auxiliary electrodes. The auxiliary electrodes are provided at both sides of respective ones of the plurality of discharge electrodes, and a high or low potential is applied to the auxiliary electrodes so as to cancel out an electric interaction between respective ones of the plurality of discharge electrodes.Type: GrantFiled: October 27, 1999Date of Patent: December 11, 2001Assignee: Hitachi, Ltd.Inventors: Lee Chahn, Hideki Shinohara, Shigetaka Fujiwara, Shuji Imazeki, Seiji Yonekura, Yoshiharu Nagae
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Patent number: 6286938Abstract: An ink jet recording apparatus has a head substrate, a jetting member disposed on the substrate, a recording electrode disposed so as to sandwich the jetting member and for making ink jet from the jetting member, and a separating wall for covering the recording electrode, wherein the ink is supplied from the proximal end of the jetting member and recovered in an upward direction from near the tip end of the jetting member. According to such an arrangement, it becomes possible to prevent the recording electrode from being clogged with ink adhering at the tip end thereof, and thus, the locus of the ink drop jetted from the head can be prevented from being deviated due to deviation of the jetting point on the jetting member. Accordingly, it becomes possible to provide an ink jet recording apparatus which is capable of printing an image with a high definition.Type: GrantFiled: February 16, 2000Date of Patent: September 11, 2001Assignee: Hitachi, Ltd.Inventors: Mamoru Okano, Seiji Yonekura, Yoshinobu Fukano, Shigetaka Fujiwara, Atsushi Onose
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Patent number: 4922272Abstract: A high precision image recording apparatus includes an electrophotographic device having at least a photosensitive drum and an exposure unit, for forming a toner image on the surface of the photosensitive drum; a recording sheet feed/transport unit for feeding and transporting a recording sheet to which the toner image formed on the surface of the photosensitive drum is transferred; a transfer unit for transferring the toner image on the photosensitive drum to the recording sheet fed and transported by the recording sheet feed/transport unit; and a drive unit for driving the photosensitive drum and recording sheet feed/transport unit. The drive unit is provided with a motor coupled to the photosensitive drum via a rotation transmission mechanism having a speed reduction ratio of 1/integer number (inclusive of 1/1), and the exposure unit is provided with a recording start position control unit for starting recording image information from a predetermined reference position on the photosensitive drum.Type: GrantFiled: July 31, 1989Date of Patent: May 1, 1990Assignees: Hitachi, Ltd., Hitachi Setsubi Engineering Co., Ltd.Inventors: Kazuhiro Wakamatsu, Seiji Yonekura, Mitsuo Suzuki, Hiroyuki Tadokoro, Atsuo Suzuki
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Patent number: 4740817Abstract: A picture recording apparatus laser beam printer wherein a cassette, accommodating paper for receiving a transferred image, is loaded or unloaded on a front side of a housing of the printer. The conveyance direction of the paper accommodated in the cassette is reversed so as to be supplied to a transfer section by a paper separation reversal guide section. The conveyance direction of the paper is further reversed so as to be discharged on a tray in manner such that a forward end of the paper is located on a front surface side and an image transfer surface of the paper is faced downwardly. A manual paper feeding section is provided on the front side of the housing. A major portion of the cassette can be accommodated inside the housing whereby and the installation area can be reduced.Type: GrantFiled: April 14, 1986Date of Patent: April 26, 1988Assignee: Hitachi, Ltd.Inventors: Mitsuo Suzuki, Seiji Yonekura, Masayoshi Furuichi
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Patent number: 4549092Abstract: A control system for an illumination lamp installed in a building equipped with a door operation control apparatus. The system comprises a door opening and closing instructor, a control circuit responsive to an instruction signal from the instructor to produce a door control signal and a lamp control signal, a door driver responsive to the door control signal to drive the opening and closing of a door, an illumination lamp for illumination of the interior of the building, a detector for detecting the movement of a human body and producing an electric signal representative of the movement, and a circuit which is responsive to the lamp control signal and the electric signal to turn on the illumination lamp and keeps the illumination lamp turned on for a predetermined time extending from the termination of the lamp control signal and the electric signal.Type: GrantFiled: March 5, 1982Date of Patent: October 22, 1985Assignee: Hitachi, Ltd.Inventors: Shigeru Matsuoka, Koji Yamauchi, Hiroyuki Tadokoro, Seiji Yonekura, Mitsuo Suzuki
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Patent number: 4405923Abstract: A garage door operation control system comprises a door operating apparatus for operating a garage door, a plurality of push buttons for issuing a plurality of operating commands associated with the door operation by predetermined button operations, means for setting an operating command by the operation of the push buttons, and means for controlling the operation of the door operating apparatus on the basis of the operating command thus set.Type: GrantFiled: January 23, 1981Date of Patent: September 20, 1983Assignee: Hitachi, Ltd.Inventors: Shigeru Matsuoka, Takeshi Tokunaga, Seiji Yonekura, Kogi Yamauchi, Mitsuo Suzuki
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Patent number: 4393342Abstract: A motor for driving a garage door is controlled by a control unit, which counts the time required for the garage door to move between an upper limit switch and a lower limit switch. The control unit sets a comparison reference time on the basis of the time thus counted, and controls the motor in such a manner that the motor driving does not continue for a period of time longer than the comparison reference time.Type: GrantFiled: December 9, 1981Date of Patent: July 12, 1983Assignee: Hitachi, Ltd.Inventors: Shigeru Matsuoka, Takeshi Tokunaga, Seiji Yonekura, Koji Yamauchi, Mitsuo Suzuki
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Patent number: 4386398Abstract: An automatic door operation control apparatus is disclosed which comprises a door operating device a driving device for opening and closing the door, a condition detector for detecting a condition under which the movement of the door by the driving device is required to be discontinued, and a main control device for issuing a driving command to the driving device to actuate the same as required in response to a condition detection signal from the condition detector. The apparatus further comprises an auxiliary control device for stopping the operation of the driving device in the event that the main control device fails to issue a command to the driving device to stop the door movement within a predetermined length of time in response to the condition detection signal from the condition detector.Type: GrantFiled: March 27, 1981Date of Patent: May 31, 1983Assignee: Hitachi, Ltd.Inventors: Shigeru Matsuoka, Takeshi Tokunaga, Seiji Yonekura, Koji Yamauchi, Mitsuo Suzuki
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Patent number: 4383206Abstract: A motor for operating the door is controlled for forward and reverse rotations and stoppage by a control circuit responsive to an operation command signal, an upper-lower limit signal, an obstruction detection signal and a maximum drive time over signal, thus controlling the door stepwise for opening, stoppage, closing, stoppage and opening in that order. Upon generation of an obstruction detection signal or a maximum drive time over signal during the closing operation, the control circuit controls the motor in a manner to open the door for a certain period of time, and subsequently upon application of an operation command signal, the control circuit is set in a manner to open the door again.Type: GrantFiled: July 8, 1981Date of Patent: May 10, 1983Assignee: Hitachi, Ltd.Inventors: Shigeru Matsuoka, Takeshi Tokunaga, Seiji Yonekura, Koji Yamauchi, Mitsuo Suzuki
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Patent number: 4365250Abstract: A garage door operation control apparatus includes a door operating system for opening and closing the main door of a garage, a main detection circuit for detecting the open or closed condition of the main door, an auxiliary detection circuit for detecting an open condition of a window or an auxiliary door of the garage, a fire in the garage or generation of a special gas therein, an alarm and a signal processing circuit. Electrical signals from the detection circuit are logically analyzed thereby to control the door operating system and the alarm.Type: GrantFiled: April 15, 1980Date of Patent: December 21, 1982Assignee: Hitachi, Ltd.Inventors: Shigeru Matsuoka, Takeshi Tokunaga, Seiji Yonekura, Mituo Suzuki, Kenji Nakamura
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Patent number: 4344252Abstract: A garage door operation control apparatus comprises a disc rotatable in interlocked relation with a door driving system, which disc actuates an upper limit switch and a lower limit switch at the door upper and lower limit positions respectively. The interlocked relation of the driving system and the disc may be cancelled thereby to adjust the responsive position of the limit switches.Type: GrantFiled: March 28, 1980Date of Patent: August 17, 1982Assignee: Hitachi, Ltd.Inventors: Mitsuo Suzuki, Takeshi Tokunaga, Seiji Yonekura, Shigeru Matsuoka, Kenji Nakamura
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Patent number: 4328540Abstract: A door operation control apparatus comprising a memory circuit for storing a programmed data on door control processes in the form of a combination of command codes is disclosed. A door operation input signal, a mode or condition detection signal from a door operating device and the condition of the program being executed are used to determine logically the optimum door operating mode, thus controlling the door operating device.Type: GrantFiled: February 20, 1980Date of Patent: May 4, 1982Assignee: Hitachi, Ltd.Inventors: Shigeru Matsuoka, Toshio Tsubaki, Takeshi Tokunaga, Seiji Yonekura, Kenji Nakamura, Mituo Suzuki