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公开(公告)号：US10482357B2
公开(公告)日：2019-11-19
申请号：US15879559
申请日：2018-01-25
Applicant: Konica Minolta, Inc.
Inventor： So Yano , Yoshikazu Watanabe , Sotaro Yokota
IPC: G06K15/12 , G03G15/043 , G03G15/04 , B41J2/45 , H04N1/028
Abstract: An optical print head including light emitting elements, drivers, setters, a detector, and a generator. The detector is for detecting a noise component superimposed on a luminance signal, on transmission circuitry for transmitting the luminance signal from a setter to a driver, in a state in which the setter is outputting the luminance signal. The generator, for each light emitting element due to emit light in a line subsequent to a line for which the detector detected the noise component, generates and causes a setter corresponding to the light emitting element to output an adjusted luminance signal such that the light emitting element emits a light emission amount according to image data in a state in which the noise component detected by the detector is superimposed on the adjusted luminance signal.
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公开(公告)号：US09465313B2
公开(公告)日：2016-10-11
申请号：US14800803
申请日：2015-07-16
Applicant: KONICA MINOLTA, INC.
Inventor： Makoto Obayashi , Satoshi Masuda , Yoshikazu Watanabe , Masayuki Iijima , So Yano , Takaki Uemura
IPC: G03G15/00 , G03G15/04 , G03G15/043
CPC classification number: G03G15/04054 , G03G15/043
Abstract: An optical print head includes: light-emitting elements in line shape; first power line supplying first reference voltage; second power line supplying drive current to each light-emitting element and supplying second reference voltage; DAC outputting first voltage indicating light emission amount of each light-emitting element; first elements for holding first voltage difference between the first reference voltage and the first voltage; second elements each electrically connectable with corresponding first element and for holding second voltage difference between the second reference voltage and second voltage according to the first voltage, and during supply of drive current, controls each first element to hold the first difference by electrically disconnecting the first and second elements, and temporarily suspends supply of the drive current, and controls the second element to hold the second difference by electrically connecting the first and second elements, such that the drive current according to the second voltage difference is supplied.
Abstract translation: 光学打印头包括：线形的发光元件; 第一电源线提供第一参考电压; 第二电力线向每个发光元件提供驱动电流并提供第二参考电压; DAC输出表示每个发光元件的发光量的第一电压; 用于保持所述第一参考电压和所述第一电压之间的第一电压差的第一元件; 第二元件，其可以与相应的第一元件电连接，并且用于根据第一电压保持第二参考电压和第二电压之间的第二电压差，并且在供应驱动电流期间，通过电连接第一电压 和第二元件，并且暂时停止驱动电流的供给，并且通过电连接第一和第二元件来控制第二元件以保持第二差异，使得提供根据第二电压差的驱动电流。
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公开(公告)号：US11693261B2
公开(公告)日：2023-07-04
申请号：US17245499
申请日：2021-04-30
Applicant: Konica Minolta, Inc.
Inventor： Yoshikazu Watanabe , Takaki Uemura , Sotaro Yokota
Abstract: A focus adjusting tool used to perform an initial setting for a pair of autofocus eyeglasses includes an adjusting lens that refracts reflected light from a visual object, a housing including an inner space that allows a parallel movement of the adjusting lens, an adjusting unit that adjusts a position of the adjusting lens inside the housing, and a first end and a second end in a moving direction of the adjusting lens. The first end is provided with a hole for visually observing a visual object through a power variable lens of the pair of autofocus eyeglasses. The adjusting lens adjusts, in response to the position thereof inside the housing, an incident angle of the reflected light from the visual object into the power variable lens, the visual object being located on the side of the second end.
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公开(公告)号：US09921515B2
公开(公告)日：2018-03-20
申请号：US14511205
申请日：2014-10-10
Applicant: KONICA MINOLTA, INC.
Inventor： So Yano , Satoshi Masuda , Makoto Obayashi , Masayuki Iijima , Yoshikazu Watanabe
CPC classification number: G03G15/043 , B41J2/45 , G01K7/01 , G01K7/42 , G06K15/027 , G06K15/1247
Abstract: An optical writing device having; a plurality of light-emitting points; a photodiode configured to output a signal which represents a quantity of incident light from a predetermined light-emitting point selected from the plurality of light-emitting points; and a calculation section for calculating a temperature of the photodiode based on a magnitude of a photodiode dark current included in the signal output from the photodiode while the predetermined light-emitting point is OFF.
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公开(公告)号：US20180218244A1
公开(公告)日：2018-08-02
申请号：US15879559
申请日：2018-01-25
Applicant: Konica Minolta, Inc.
Inventor： So Yano , Yoshikazu Watanabe , Sotaro Yokota
CPC classification number: G06K15/1247 , B41J2/451 , G03G15/04054 , G03G15/04063 , G03G15/043 , H04N1/02815
Abstract: An optical print head including light emitting elements, drivers, setters, a detector, and a generator. The detector is for detecting a noise component superimposed on a luminance signal, on transmission circuitry for transmitting the luminance signal from a setter to a driver, in a state in which the setter is outputting the luminance signal. The generator, for each light emitting element due to emit light in a line subsequent to a line for which the detector detected the noise component, generates and causes a setter corresponding to the light emitting element to output an adjusted luminance signal such that the light emitting element emits a light emission amount according to image data in a state in which the noise component detected by the detector is to superimposed on the adjusted luminance signal.
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Patent Agency Ranking
公开(公告)号：US09594327B2
公开(公告)日：2017-03-14
申请号：US14699189
申请日：2015-04-29
Applicant: KONICA MINOLTA INC.
Inventor： Satoshi Masuda , Makoto Obayashi , Yoshikazu Watanabe , Masayuki Iijima , So Yano , Takaki Uemura
IPC: G03G15/04 , G09G5/18 , G09G3/3283 , G09G3/32
CPC classification number: G03G15/04054 , G09G3/3283 , G09G5/18 , G09G2300/0426
Abstract: An optical writing device includes a plurality of current driven light emitting elements, first and second power source lines, a designation circuit that outputs a designation potential, first driving circuits provided for each of the light emitting elements to supply driving current to the corresponding light emitting element, second driving circuits provided for each of the light emitting elements to supply driving current to the corresponding light emitting element, and a switching control unit that alternately switches respective states of the first and second driving circuits between a state where one of the first and second driving circuits receives the designation potential while the other driving circuit supplies the driving current, and a state where the other driving circuit receives the designation potential while the one driving circuit supplies the driving current.
Abstract translation: 光学写入装置包括多个电流驱动发光元件，第一和第二电源线，输出指定电位的指定电路，为每个发光元件提供的第一驱动电路，以向相应的发光元件提供驱动电流 为每个发光元件提供的元件第二驱动电路，以向相应的发光元件提供驱动电流;以及切换控制单元，其交替地切换第一和第二驱动电路的各自的状态， 第二驱动电路在另一个驱动电路提供驱动电流的同时接收指定电位，另一个驱动电路在一个驱动电路提供驱动电流的同时接收指定电位的状态。
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7.发明授权Optical print head having first and second power lines and image forming apparatus 有权具有第一和第二电力线的光学打印头和图像形成装置公开(公告)号：US09254678B2
公开(公告)日：2016-02-09
申请号：US14664086
申请日：2015-03-20
Applicant: Konica Minolta, Inc.
Inventor： Yoshikazu Watanabe , Satoshi Masuda , Makoto Obayashi , Masayuki Iijima , So Yano , Takaki Uemura
CPC classification number: B41J2/47 , B41J2/451 , B41J2002/453
Abstract: Optical print head includes: light-emitting elements connected one-to-one to current supply lines branching from first power line at different positions in longitudinal direction; holding elements; signal writing unit writing luminance signal into each holding element, the luminance signal being represented by voltage indicating light emission amount of corresponding light-emitting element; second power line supplying reference voltage to each holding element, the reference voltage being reference when signal writing unit writes luminance signal into holding element; and driving drivers corresponding one-to-one with current supply lines and controlling current supplied to corresponding current supply line from first power line, in accordance with voltage held in corresponding holding element when signal writing unit has written luminance signal into corresponding holding element, wherein power source supplying the reference voltage to second power line is common with power source supplying voltage to signal output subunit outputting luminance signal.
Abstract translation: 光学打印头包括：与第一电源线在纵向不同位置分支的电流供应线路一对一连接的发光元件; 持有元素 信号写入单元将亮度信号写入每个保持元件，所述亮度信号由表示对应的发光元件的发光量的电压表示; 第二电力线向每个保持元件提供参考电压，参考电压是信号写入单元将亮度信号写入保持元件时的参考电压; 以及当信号写入单元将亮度信号写入到相应的保持元件中时，根据当前保持在相应的保持元件中的电压，从第一电力线控制提供给相应电流线的电流，驱动驱动器与当前电源线一一对应， 向第二电力线提供参考电压的电源对于输出亮度信号的信号输出子单元的电源提供电压是常见的。
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8.发明授权Light-emitting element, image forming apparatus, image display apparatus and image reading apparatus 有权发光元件，图像形成装置，图像显示装置和图像读取装置公开(公告)号：US09076741B2
公开(公告)日：2015-07-07
申请号：US14307719
申请日：2014-06-18
Applicant: Konica Minolta, Inc.
Inventor： Yoshikazu Watanabe , Satoshi Masuda , Makoto Obayashi , Masayuki Iijima , So Yano
CPC classification number: H01L27/3227 , B41J2/451 , G03G15/04063 , H01L51/5218 , H01L51/5234 , H01L51/5265
Abstract: A light-emitting element having a light-emitting section and a light-receiving section provided on a substrate. The light-emitting section includes: an organic compound in which light is emitted; a translucent reflecting portion that transmits the emitted light which has spectral radiance changeable with changes in ambient temperature; and a transparent portion that radiates first part of the light coming through the translucent reflecting portion to outside and total-reflects second part that is light incident to a boundary surface therebetween at angles larger than a critical angle. Wherein, the light-receiving section is capable of receiving the light total-reflected at the boundary surface, the received light having a quantity of light changeable with changes in wavelength of the light passing through the translucent reflecting portion. The light-receiving section further outputs a signal which has an amplitude level in correlation to the quantity of light.
Abstract translation: 一种具有发光部分和设置在基板上的光接收部分的发光元件。 发光部包括：发光的有机化合物; 透射具有随着环境温度变化而变化的光谱辐射的发射光的半透明反射部分; 以及将通过半透明反射部分的光的第一部分辐射到外部并且以大于临界角的角度全反射入射到其边界面的光的第二部分的透明部分。 其中，光接收部能够接收在边界面全反射的光，所接收的光具有随着通过半透明反射部的光的波长变化而变化的光量。 光接收部分还输出具有与光量相关的振幅电平的信号。
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9.发明申请公开(公告)号：US20240385561A1
公开(公告)日：2024-11-21
申请号：US18650849
申请日：2024-04-30
Applicant: Konica Minolta, Inc.
Inventor： Takashi Watanabe , Yoshikazu Watanabe , Yasuhiro Ishihara , Yukinobu Iguchi , Shougo Kamiya , Tatsuya Eguchi
IPC: G03G15/00
Abstract: An image forming system conveys a recording medium to form an image. The image forming system includes: a driver to drive an operation mechanism to convey a recording medium or an operation mechanism to form an image on the recording medium; a detector that detects a driving state of the driver; a diagnostic section diagnosing an abnormality of the operation mechanism based on a load obtained by converting a detection result by the detector based on a predetermined conversion condition; and an updater that, when at least one of components of the driver is replaced, updates the conversion condition in accordance with the replaced component.
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公开(公告)号：US10481519B2
公开(公告)日：2019-11-19
申请号：US15704517
申请日：2017-09-14
Applicant: Konica Minolta, Inc.
Inventor： So Yano , Yoshikazu Watanabe , Sotaro Yokota
IPC: G03G15/04 , G03G15/043
Abstract: A print head includes: current-driven non-single crystal light emitting elements arranged in a line; thin film transistors that are provided in one-to-one correspondence with the light emitting elements and each supplies a driving current to a corresponding one of the light emitting elements; a detector that detects, when one of the light emitting elements corresponding to one of the thin film transistors emits light, an output voltage of the one of the thin film transistors; and a hardware processor that determines a control voltage to be applied to each of the thin film transistors when next light is emitted according to the output voltage of the one of the thin film transistors detected by the detector and a driving current to be supplied by each of the thin film transistors to cause each of the light emitting elements to emit light with a target light amount.
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