Patents by Inventor Takashi Kitagawa
Takashi Kitagawa 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: 8748520Abstract: A polycarbonate resin composition comprising a compound represented by the following formula (1): wherein each of R1a, R1b, R1c, R1d and R1e independently represents a hydrogen atom or a monovalent substituent provided that OH is excluded, at least one of the substituents represents a substituent having a Hammett's ?p value of 0.3 or more, and the substituents may be combined each other to form a ring; and each of R1g, R1h, R1i, R1j, R1k, R1m, R1n and R1p independently represents a hydrogen atom or a monovalent substituent, and the substituents may be combined each other to form a ring.Type: GrantFiled: September 27, 2010Date of Patent: June 10, 2014Assignee: FUJIFILM CorporationInventors: Takashi Kitagawa, Ichiro Amasaki, Yukie Watanabe, Keizo Kimura
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Patent number: 8660448Abstract: An image forming apparatus includes a photoreceptor, a developing apparatus, a developing bias supply power source, a control section for controlling a developing bias, a density sensor, and an arithmetic section. When an image density adjustment operation is performed, the arithmetic section determines a print-time developing bias in accordance with a detection result obtained by detecting, by the density sensor, a plurality of image density adjustment toner images formed by changing a developing bias. The print-time developing bias is set by the control section when printing is performed. also, In a case where a previous print-time developing bias falls within at least a low range of a predetermined range of the developing bias, the arithmetic section determines the print-time developing bias to a value between a reference developing bias for a target image density and the previous print-time developing bias.Type: GrantFiled: February 1, 2012Date of Patent: February 25, 2014Assignee: Sharp Kabushiki KaishaInventors: Masayuki Otsuka, Takashi Kitagawa, Motoyuki Itoyama
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Patent number: 8625162Abstract: An image processing section includes a density correction adjustment section, and in response to an instruction from a density correction process section to adjust a density correction process, the density correction adjustment section reviews a conversion value table which is used by the density correction process section to calculate an output correction value by conversion, so as to adjust the density correction process.Type: GrantFiled: June 27, 2011Date of Patent: January 7, 2014Assignee: Sharp Kabushiki KaishaInventors: Norihide Yasuoka, Masayuki Otsuka, Masaya Fujitani, Katsuhiro Nagayama, Takashi Kitagawa
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Publication number: 20130301118Abstract: The present invention relates to a window glass for a vehicle, attached to a body flange of the vehicle at a circumferential edge portion thereof, including: an infrared ray shielding portion which reflects or absorbs infrared rays on a large part of the window; and electromagnetic wave transmitting portions having a substantially rectangular shape, which transmit at least a predetermined electromagnetic wave, at each of lower end portions on both sides in a width direction of the vehicle.Type: ApplicationFiled: July 12, 2013Publication date: November 14, 2013Inventors: Masanobu OGAWA, Junzo Ooe, Takuma Sawaya, Takashi Kitagawa
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Publication number: 20130300146Abstract: The present invention relates to a window glass for a vehicle, including: an electromagnetic wave transmitting portion which transmits a predetermined electromagnetic wave, and is positioned above a position where a rearview mirror provided at a front and upper portion inside of the vehicle is projected on the window glass for a vehicle in a longitudinal direction and a horizontal direction of the vehicle, in which a distance in a width direction of the electromagnetic wave transmitting portion is larger than a width which is projected in a horizontal direction on the window glass for a vehicle at 45 degree angle towards each of both sides in a width direction from a central portion in a width direction of the rearview mirror relative to a longitudinal direction of the vehicle.Type: ApplicationFiled: July 12, 2013Publication date: November 14, 2013Inventors: Masanobu Ogawa, Junzo Ooe, Takuma Sawaya, Takashi Kitagawa
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Publication number: 20130239748Abstract: The present invention is a reverse idler shaft supporting structure for a transmission characterized in that a case-side support portion is formed in an end wall, which is disposed at an axial end portion of a transmission case, the case-side support portion extending to the vicinity of another axial end portion of the reverse idler shaft along the reverse idler shaft; an arm portion is formed on a support bracket, the arm portion extending to the case-side support portion from the periphery of a support hole which is formed on the support bracket; a curved surface portion which takes on a circular arc shape centering on a shaft center of the reverse idler shaft and is joined with one another is formed on the case-side support portion and the arm portion, respectively; and a bolt is disposed such that the central axis thereof passes through each curved surface and is oriented toward the shaft center of the reverse idler shaft.Type: ApplicationFiled: January 17, 2013Publication date: September 19, 2013Applicant: SUZUKI MOTOR CORPORATIONInventor: Takashi Kitagawa
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Patent number: 8304538Abstract: A method of producing a compound represented by Formula (I), which comprises a step A of reacting an anthranilic acid compound with a carboxylic halide in the absence of a base, but does not comprise a step of isolating of an amide intermediate compound represented by Formula (II): wherein R1 represents a substituent; n1 is an integer of 0 to 4; R2 represents an n2-valent substituent or a linking group; and n2 is an integer of 1 to 4.Type: GrantFiled: September 25, 2008Date of Patent: November 6, 2012Assignee: FUJIFILM CorporationInventors: Keizo Kimura, Takashi Kitagawa, Osamu Uchida
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Patent number: 8264755Abstract: An image forming apparatus including: a black image forming section for forming a black image and a first black pattern for a coarse correction of black and optionally a second black pattern for a precise correction of black; a color image forming section for forming a color image optionally a third pattern for a coarse correction of color and optionally a fourth pattern for a precise correction of color; and a control section for allowing at least the first black pattern to be formed and optionally a second black pattern and third and fourth color patterns, and controlling to perform the coarse correction of black for correcting a forming condition of a black image to be formed and to perform optionally a precise correction of black, the coarse and precise correction of color based on the measurement of the formed pattern(s), wherein the control section controls to perform the coarse correction of black but not to perform the precise correction of black and the coarse and precise corrections of color in caseType: GrantFiled: May 6, 2009Date of Patent: September 11, 2012Assignee: Sharp Kabushiki KaishaInventors: Katsuhiro Nagayama, Takashi Kitagawa, Masayuki Otsuka
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Publication number: 20120201556Abstract: An image forming apparatus includes a photoreceptor, a developing apparatus, a developing bias supply power source, a control section for controlling a developing bias, a density sensor, and an arithmetic section. When an image density adjustment operation is performed, the arithmetic section determines a print-time developing bias in accordance with a detection result obtained by detecting, by the density sensor, a plurality of image density adjustment toner images formed by changing a developing bias. The print-time developing bias is set by the control section when printing is performed. also, In a case where a previous print-time developing bias falls within at least a low range of a predetermined range of the developing bias, the arithmetic section determines the print-time developing bias to a value between a reference developing bias for a target image density and the previous print-time developing bias.Type: ApplicationFiled: February 1, 2012Publication date: August 9, 2012Inventors: Masayuki OTSUKA, Takashi Kitagawa, Motoyuki Itoyama
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Publication number: 20110317221Abstract: An image processing section includes a density correction adjustment section, and in response to an instruction from a density correction process section to adjust a density correction process, the density correction adjustment section reviews a conversion value table which is used by the density correction process section to calculate an output correction value by conversion, so as to adjust the density correction process.Type: ApplicationFiled: June 27, 2011Publication date: December 29, 2011Inventors: Norihide YASUOKA, Masayuki Otsuka, Masaya Fujitani, Katsuhiro Nagayama, Takashi Kitagawa
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Patent number: 8078069Abstract: It is judged whether a sufficient time for executing all of three correction processings (a high density correction processing, a halftone correction processing, and a registration correction processing) can be secured or not. When the sufficient time cannot be secured, the high density correction processing as an essential correction processing is executed. A history of the halftone correction processing and a history of the registration correction processing are compared with each other. A date of latest execution of the halftone correction processing and a date of latest execution of the registration correction processing are compared with each other to judge whether or not the execution of the halftone correction processing is earlier, and the registration correction processing and the halftone correction processing are executed, respectively.Type: GrantFiled: July 2, 2008Date of Patent: December 13, 2011Assignee: Sharp Kabushiki KaishaInventors: Masayuki Otsuka, Katsuhiro Nagayama, Takashi Kitagawa
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Patent number: 8019242Abstract: An image forming apparatus and an image forming method capable of executing process control at appropriate timing are provided. A control section of an image forming apparatus carries out control for determining execution time of process control and executing the process control. The control section includes a counting section, a determining section and a process control management section. The counting section counts a number of printed sheets. The determining section determines on what time process control is to be executed form the counted number of printed sheets for each time zone. The process control management section manages the process control executed at an image forming section with the whole of the image forming apparatus.Type: GrantFiled: August 6, 2008Date of Patent: September 13, 2011Assignee: Sharp Kabushiki KaishaInventors: Takashi Kitagawa, Katsuhiro Nagayama, Masayuki Otsuka
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Publication number: 20110182604Abstract: An image forming apparatus includes: a developing unit forming a toner image on a photoreceptor drum; a photo sensor detecting the image density of the toner image; an operation unit calculating a relational equation between the measurement detected by the photo sensor and the development potential; a storage unit storing the relational equation; and a control unit setting up a corrected development potential to obtain a target image density for the developing unit, based on the image density of toner image patches. When high-density correction is performed, the control unit forms a multiple number of toner image patches on the photoreceptor drum based on the corrected development potential that was obtained at the time of the previous high-density correction, and sets up a corrected development potential for obtaining the target image density, based on the multiple image densities of the multiple toner image patches.Type: ApplicationFiled: January 26, 2011Publication date: July 28, 2011Inventors: Masayuki OTSUKA, Takashi Kitagawa, Katsuhiro Nagayama
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Patent number: 7920801Abstract: Related is an image forming apparatus by electrophotography having a function of performing adjustment of image quality when performing image formation. The image forming apparatus includes a detection portion for detecting a fixing temperature of a fixing apparatus; a storage portion for storing an application history of a development bias; a count portion for counting a reposed time from a point when an operation of image formation is ended; a determination portion for determining a change range of the development bias immediately before the end of the operation of image formation; and an execution portion for executing adjustment of image quality by setting the development bias based on a determination result from the determination portion when the reposed time or the fixing temperature exceeds a predetermined value.Type: GrantFiled: April 8, 2009Date of Patent: April 5, 2011Assignee: Sharp Kabushiki KaishaInventors: Masayuki Otsuka, Katsuhiro Nagayama, Takashi Kitagawa
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Publication number: 20110077331Abstract: A polycarbonate resin composition comprising a compound represented by the following formula (1): wherein each of R1a, R1b, R1c, R1d and R1e independently represents a hydrogen atom or a monovalent substituent provided that OH is excluded, at least one of the substituents represents a substituent having a Hammett's ?p value of 0.3 or more, and the substituents may be combined each other to form a ring; and each of R1g, R1h, R1i, R1j, R1k, R1m, R1n and R1p independently represents a hydrogen atom or a monovalent substituent, and the substituents may be combined each other to form a ring.Type: ApplicationFiled: September 27, 2010Publication date: March 31, 2011Applicant: FUJIFILM CORPORATIONInventors: Takashi Kitagawa, Ichiro Amasaki, Yukie Watanabe, Keizo Kimura
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Publication number: 20110059033Abstract: An object of the invention is to provide an ultraviolet absorbing composition for a skin and hair, which has absorption of high absorbance in both UV-A region and UV-B region, wherein an ultraviolet absorbing compounds in the ultraviolet absorbing composition will not precipitate or turn to yellow in the process of preparing cosmetics. Moreover, the ultraviolet absorbing composition shows excellent feeling in use, and will not dye clothes easily, and may be applied to the skin and hair of a living object, and exhibits excellent capability of absorbing an ultraviolet light. The ultraviolet absorbing composition for skin and hair, which comprises the ultraviolet absorbing compound represented by formula (1) and at least one ultraviolet absorbing compound selected from the group consisting of formulae (I) to (V). (In formula (1), Y11 and Y12 each independently represents monovalent substituent.Type: ApplicationFiled: September 3, 2010Publication date: March 10, 2011Applicant: FUJIFILM CorporationInventors: Takashi Kitagawa, Toshihiko Yawata, Youichirou Takeshima, Keizo Kimura
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Patent number: 7889365Abstract: An image forming apparatus includes: an image forming section; a manual setting mode for enabling a user to provide instruction of timing for executing a process control of the image forming section; a cumulative operation information management section for calculating and storing cumulative operation information after the execution of the previous process control; a threshold value setting section for setting, to a threshold value, the cumulative operation information at the point when the instruction is provided in the manual setting mode; and a process control management section for executing a process control and resetting the cumulative operation information at timing when the cumulative operation information reaches the threshold value.Type: GrantFiled: January 7, 2008Date of Patent: February 15, 2011Assignee: Sharp Kabushiki KaishaInventors: Takashi Kitagawa, Katsuhiro Nagayama, Masayuki Otsuka
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Publication number: 20100256362Abstract: A method of producing a compound represented by Formula (I), which comprises a step A of reacting an anthranilic acid compound with a carboxylic halide in the absence of a base, but does not comprise a step of isolating of an amide intermediate compound represented by Formula (II): wherein R1 represents a substituent; n1 is an integer of 0 to 4; R2 represents an n2-valent substituent or a linking group; and n2 is an integer of 1 to 4.Type: ApplicationFiled: September 25, 2008Publication date: October 7, 2010Inventors: Keizo Kimura, Takashi Kitagawa, Osamu Uchida
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Patent number: 7734229Abstract: A pixel count section calculates a coverage rate corresponding to toner consumption. A control coefficient value setting section determines, based on the coverage rate, a stop threshold value representing reference concentration for toner replenishment and replenishment extension time. A magnetic permeability sensor measures permeability representing toner concentration in a housing portion. A toner concentration control section starts toner replenishment when an output value from the magnetic permeability sensor varies from a value less than a start threshold value to the start threshold value or above, and stops toner replenishment after lapse of replenishment extension time from the time at which an output value varied from a value greater than the stop threshold value to the stop threshold value.Type: GrantFiled: July 19, 2007Date of Patent: June 8, 2010Assignee: Sharp Kabushiki KaishaInventors: Tatsuya Tanaka, Kyosuke Taka, Takashi Kitagawa
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Patent number: 7675649Abstract: A small domain generation section generates a plurality of small domains in a multi-valued image transmitted from an intermediate tone correction section. Each domain is constituted of a plurality of pixels. Counting means counts a signal input value of each pixel. Weighting calculation means corrects each signal input value of the “pixels subjection to toner quantity equivalent value calculation” with reference to the signal input value of the small domain, and reads out a weighting coefficient from the weighting coefficient table based on the modified signal input value. The weighting calculation means multiplies the signal input value by the coefficient so as to convert the signal input value into a toner quantity equivalent value. Accumulating means calculates toner quantity equivalent values for all of the pixels of the multi-valued image.Type: GrantFiled: August 1, 2006Date of Patent: March 9, 2010Assignee: Sharp Kabushiki KaishaInventors: Hiroshi Kawano, Masatsugu Nakamura, Shinji Imagawa, Takashi Kitagawa, Masaaki Ohtsuki