Patents by Inventor Takuya Uehara
Takuya Uehara 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: 7929894Abstract: A driving control device for use in an image forming apparatus includes a control unit that analyzes any one of a speed variation pattern and a thickness variation pattern of an endless belt member of the image forming apparatus per at least one rotation of the endless belt member while endlessly moving the endless belt member by a driving rotating unit, and starts to execute, based on a result of analysis, a driving-speed-control-pattern updating process to update a driving speed control pattern of the driving rotating unit per at least one rotation of the endless belt member, after a power of an image forming apparatus is turned on and within a preparation period in which a predetermined preparation process is completed so that an image forming operation can be started based on an image formation command from an operator.Type: GrantFiled: December 11, 2008Date of Patent: April 19, 2011Assignee: Ricoh Company, LimitedInventors: Takuya Murata, Kazuhiko Kobayashi, Takuya Uehara, Yuji Matsuda, Yuichiro Ueda, Hiromichi Matsuda, Toshiyuki Andoh, Joh Ebara, Yohei Miura
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Publication number: 20100253900Abstract: A liquid crystal module includes a liquid crystal cell, a board and a base film mounted on the board. Electrodes are aligned on an edge of the liquid crystal cell. Terminals are aligned on an edge of the base film. The terminals include first terminals and a second terminal. The first terminals, is connected to the electrodes by a thermally compression bond, and is disposed so as to be applied a correction before the thermally compression bond. The correction is a offset by which the first terminals correspond to the electrodes after the thermally compression bond. The second terminal is disposed so as to correspond to first one of the electrodes before the thermally compression bond.Type: ApplicationFiled: March 31, 2010Publication date: October 7, 2010Inventor: Takuya Uehara
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Patent number: 7748695Abstract: A common driving source transmits a drive force to a driving unit that drives a feeding unit and a conveying unit. The driving source is a motor that rotates in either of a normal direction and a reverse direction. The feeding unit includes a mechanical drive-blocking mechanism in its driving sequence. The conveying unit includes a two-system driving sequence and a mechanical drive-blocking mechanism in the driving sequence so as to rotate in one direction regardless of a rotating direction of the driving source. A reduction ratio of each driving sequence in the conveying unit is identical.Type: GrantFiled: February 12, 2008Date of Patent: July 6, 2010Assignee: Ricoh Company, LimitedInventors: Yohei Miura, Joh Ebara, Takuya Uehara
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Patent number: 7667734Abstract: A single IC-chip includes a video processor, a panel processor, an OSD circuit, a CPU, and a timing controller. A memory 18 stores one test pattern datum that is formed of one font datum of X dots in width and Y dots in height in order to test the position of any bright point, dark point, bright line or dark line on the screen of the liquid crystal panel. At a test step, the CPU acquires the test pattern datum from the memory, and a test pattern is created by the OSD circuit so as to display the test pattern at any desired position on the screen of the liquid crystal panel and to simultaneously display the address values of the origin of the display position of the test pattern.Type: GrantFiled: January 13, 2006Date of Patent: February 23, 2010Assignee: Funai Electric Co., Ltd.Inventor: Takuya Uehara
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Publication number: 20090263158Abstract: In an image forming apparatus, during a rotation of an intermediate transfer belt performed after a contact-state-changing rotation in which the number of photoconductors contacting the intermediate transfer belt has changed, a control unit of a belt driving device controls the driving speed of a belt driving motor based on a period of the intermediate transfer belt determined in the rotation immediately before the contact-state-changing rotation instead of a period determined in the contact-state-changing rotation.Type: ApplicationFiled: April 8, 2009Publication date: October 22, 2009Inventors: Takuya Murata, Kazuhiko Kobayashi, Yuji Matsuda, Yuichiro Ueda, Hiromichi Matsuda, Toshiyuki Andoh, Joh Ebara, Yohei Miura, Takuya Uehara
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Publication number: 20090238613Abstract: A belt drive control device includes: first and second detection devices which detect the angular displacement or velocity of a driven rotary member and the angular displacement or velocity of a drive rotary member, respectively; an extraction device which extracts, from the difference between the detection results of the first and second detection devices, the amplitude and phase of a variation component due to belt thickness variation; a control device which controls the rotation of the drive rotary member in accordance with the extracted amplitude and phase; first and second holding devices which hold the extracted amplitude and phase and normal ranges of the amplitude and phase, respectively; and first and second feedback devices which feed back the amplitude and phase to the rotation control, and performs feedback by using a substitution value for the amplitude or phase if the amplitude or phase is out of the normal range, respectively.Type: ApplicationFiled: March 18, 2009Publication date: September 24, 2009Inventors: Yuichiro UEDA, Kazuhiko Kobayashi, Takuya Uehara, Takuya Murata, Yuji Matsuda, Takahiro Kamekura, Toshiyuki Andoh, Hiromichi Matsuda, Hiroki Ohkubo
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Publication number: 20090190972Abstract: A belt drive control unit controls a rotation of belt supported by first and second rollers. Each of rotations of the first and second rollers are detected as first and second results. A rotation of the first roller is controlled in connection with thickness fluctuation in the belt using the first and second results. The belt drive control unit includes a sampling data acquisition unit, a correction value generator, a correction value storage, and a correction value reading controller. The sampling data acquisition unit obtains sampling data by sampling a difference value between the first and second results. The correction value generator generates correction value data for the belt based on the sampling data. The correction value storage stores the correction value data. The correction value reading controller reads the correction value data based on a rotation number of the belt to control a rotation of the first roller.Type: ApplicationFiled: January 29, 2009Publication date: July 30, 2009Inventors: Hiroki Ohkubo, Hiromichi Matsuda, Toshiyuki Andoh, Yuji Matsuda, Yuichiro Ueda, Kazuhiko Kobayashi, Takuya Uehara, Takuya Murata
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Patent number: 7564532Abstract: When a control substrate 23 installed on a rear face 26 of a liquid crystal module 20 is to be connected through flat cables 30 to two drive circuit substrates 24a, 24b installed on right and left areas of an upper side surface 25 of the liquid crystal module 20, each of the flat cables 30 connecting the first and second substrates is bent in such a manner that cable surface regions thereof are overlapped with each other in the middle of the flat cable, thereby cause an extension direction of the flat cable to be shifted parallel or is bent at right angles in the middle of the flat cable.Type: GrantFiled: May 23, 2007Date of Patent: July 21, 2009Assignee: Funai Electric Co., Ltd.Inventor: Takuya Uehara
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Publication number: 20090169225Abstract: A driving control device for use in an image forming apparatus includes a control unit that analyzes any one of a speed variation pattern and a thickness variation pattern of an endless belt member of the image forming apparatus per at least one rotation of the endless belt member while endlessly moving the endless belt member by a driving rotating unit, and starts to execute, based on a result of analysis, a driving-speed-control-pattern updating process to update a driving speed control pattern of the driving rotating unit per at least one rotation of the endless belt member, after a power of an image forming apparatus is turned on and within a preparation period in which a predetermined preparation process is completed so that an image forming operation can be started based on an image formation command from an operator.Type: ApplicationFiled: December 11, 2008Publication date: July 2, 2009Inventors: Takuya Murata, Kazuhiko Kobayashi, Takuya Uehara, Yuji Matsuda, Yuichiro Ueda, Hiromichi Matsuda, Toshiyuki Andoh, Joh Ebara, Yohei Miura
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Publication number: 20090169259Abstract: A driving-force transmitting member is formed of a material having a linear expansion coefficient larger than that of a sleeve bearing, and ?x1>r1×?t×a?R1×?t×b is satisfied, where R1 is inner radius of the sleeve bearing, r1 is outer radius of a rotary shaft unit, ?x1 is difference between the inner radius R1 and the outer radius r1 at a reference temperature, ?t is maximum amount of temperature change of the driving-force transmitting member relative to the reference temperature, a is linear expansion coefficient of the sleeve bearing, and b is linear expansion coefficient of the driving-force transmitting member.Type: ApplicationFiled: December 29, 2008Publication date: July 2, 2009Inventors: Joh Ebara, Kazuhiko Kobayashi, Yohei Miura, Takuya Uehara, Takuya Murata
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Publication number: 20090135985Abstract: A maintenance/repair device for reactor internal structure 6 of the present invention includes a device body 6a configured to be fixed on a reactor internal structure 49. Connected to the device body 6a is a welding-part repair mechanism 6b configured to repair a welding part 49a of the reactor internal structure 49. Thus, a welding part 2a of the reactor internal structure 49 can be repaired by the welding-part repair mechanism 6b, while the device body 6a is fixed on the reactor internal structure 49.Type: ApplicationFiled: February 29, 2008Publication date: May 28, 2009Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yoshiaki Ono, Hidekazu Sasaki, Takuya Uehara, Hiromi Kato, Toshihiro Yasuda
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Publication number: 20090017953Abstract: A rotary drive device includes a motor including a rotary shaft, a planetary gear mechanism, and a rotation position detector. The planetary gear mechanism decelerates a rotation output of the motor at a reference reduction ratio and includes an outer gear, multistage gears, and an output shaft. The outer gear is fixed to a housing of the motor. The multistage gears are provided inside the outer gear. The output shaft transmits the decelerated rotation output of the motor to an outside of the rotary drive device. The rotation position detector detects a rotation position of the output shaft to control rotation of the motor. The motor, the planetary gear mechanism, and the rotation position detector are combined into a single integrated unit and aligned in an axial direction of the rotary shaft of the motor.Type: ApplicationFiled: July 14, 2008Publication date: January 15, 2009Inventors: Takuya Uehara, Joh Ebara, Yohei Miura, Takuya Murata
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Publication number: 20080218669Abstract: The invention provides a liquid crystal device including: a pair of substrates; a liquid crystal layer having a negative dielectric anisotropy; a pixel electrode; a counter electrode, the counter electrode being opposed to the pixel electrode; a vertical alignment film that aligns liquid crystal molecules of the liquid crystal layer in a direction in which the long axes of the liquid crystal molecules are oriented perpendicular to the pair of substrates. The pixel electrode is made up of island-pattern sub pixel elements each two adjacent ones of which are connected to each other via a connection portion having a width narrower than that of the sub pixel element. In addition, the light shielding film is formed, on one of the pair of substrates, in each region not corresponding to the connection portion between each two of the sub pixel elements that are adjacent to each other.Type: ApplicationFiled: November 29, 2007Publication date: September 11, 2008Applicant: EPSON IMAGING DEVICES CORPORATIONInventors: Joji Nishimura, Takuya Uehara
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Publication number: 20080211176Abstract: A common driving source transmits a drive force to a driving unit that drives a feeding unit and a conveying unit. The driving source is a motor that rotates in either of a normal direction and a reverse direction. The feeding unit includes a mechanical drive-blocking mechanism in its driving sequence. The conveying unit includes a two-system driving sequence and a mechanical drive-blocking mechanism in the driving sequence so as to rotate in one direction regardless of a rotating direction of the driving source. A reduction ratio of each driving sequence in the conveying unit is identical.Type: ApplicationFiled: February 12, 2008Publication date: September 4, 2008Inventors: Yohei Miura, Joh Ebara, Takuya Uehara
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Patent number: 7388623Abstract: An OSD display unit generates test pattern data to spread image patterns stored in a storage unit as digital font data for OSD display so as to match the number of pixels of a liquid crystal panel and sends the test pattern data to a panel processor for display on the liquid crystal panel.Type: GrantFiled: June 24, 2005Date of Patent: June 17, 2008Assignee: Funai Electric Co., Ltd.Inventor: Takuya Uehara
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Patent number: 7362403Abstract: Source driver IC chips 3 are mounted on flexible substrates 7a and 7b. A source input pattern, to which a source driver signal is inputted, and a source output pattern, from which a source drive signal is outputted, are formed on the flexible substrates 7a and 7b. An end portion of the source input pattern is connected to a printed circuit board 5. Moreover, an end portion of the source output pattern is connected to a glass substrate 2. A gate driver transmission pattern for transmitting gate driver signals, which are outputted from a signal processing IC 4, to the glass substrate 2 is formed on the flexible substrate 7a. In this liquid display apparatus, a gate driver IC chip 6, which is formed by using monocrystalline silicon and has a gate driver circuit integrated thereon, is COG-mounted on the glass substrate 2.Type: GrantFiled: January 28, 2005Date of Patent: April 22, 2008Assignee: Funai Electric Co., Ltd.Inventor: Takuya Uehara
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Publication number: 20070273284Abstract: When a control substrate 23 installed on a rear face 26 of a liquid crystal module 20 is to be connected through flat cables 30 to two drive circuit substrates 24a, 24b installed on right and left areas of an upper side surface 25 of the liquid crystal module 20, each of the flat cables 30 connecting the first and second substrates is bent in such a manner that cable surface regions thereof are overlapped with each other in the middle of the flat cable, thereby cause an extension direction of the flat cable to be shifted parallel or is bent at right angles in the middle of the flat cable.Type: ApplicationFiled: May 23, 2007Publication date: November 29, 2007Applicant: Funai Electric Co., Ltd.Inventor: Takuya Uehara
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Publication number: 20070242020Abstract: A common voltage generating circuit which is provided to an active matrix type liquid crystal display device having a plurality of pixel electrodes, switch elements provided correspondingly to the pixel electrodes and a counter electrode opposed to the pixel electrodes, and generates a common voltage to be applied to the counter electrode. The circuit has an operational amplifier that amplifies a signal for generating a common voltage in a non-inversion manner, and a transistor that amplifies an output from the operational amplifier so as to output the common voltage. An output terminal of the operational amplifier is connected directly to an inversion input terminal not via the transistor so that the operational amplifier is a full-feedback voltage follower.Type: ApplicationFiled: April 12, 2007Publication date: October 18, 2007Applicant: Funai Electric Co., Ltd.Inventor: Takuya Uehara
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Publication number: 20060238481Abstract: In an LCD device, a driver circuit board for outputting signals to source driver ICs and gate driver ICs is placed at a position on a cover panel distant from a position on the cover panel at which an inverter control board for cathode ray tubes is placed. The driver board is connected by first FFCs to a source bus board having the source ICs mounted thereon, and is further connected by a second FFC to a gate bus board having the gate ICs mounted thereon. The second FFC extends via a ridgeline formed between a top surface and a side surface of a liquid crystal panel. The signals from the driver board to the gate ICs are provided via the first FFCs, the source board, the second FFC and the gate board. This LCD device has improved layout flexibility and facilitates a change of placement of e.g. a backlight.Type: ApplicationFiled: April 26, 2006Publication date: October 26, 2006Applicant: Funai Electric Co., Ltd.Inventor: Takuya Uehara
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Publication number: 20060187362Abstract: A single IC-chip includes a video processor, a panel processor, an OSD circuit, a CPU, and a timing controller. A memory 18 stores one test pattern datum that is formed of one font datum of X dots in width and Y dots in height in order to test the position of any bright point, dark point, bright line or dark line on the screen of the liquid crystal panel. At a test step, the CPU acquires the test pattern datum from the memory, and a test pattern is created by the OSD circuit so as to display the test pattern at any desired position on the screen of the liquid crystal panel and to simultaneously display the address values of the origin of the display position of the test pattern.Type: ApplicationFiled: January 13, 2006Publication date: August 24, 2006Applicant: Funai Electric Co., Ltd.Inventor: Takuya Uehara