公开(公告)号：US20190187601A1

公开(公告)日：2019-06-20

申请号：US16212684

申请日：2018-12-07

Applicant: KONICA MINOLTA, INC.

Inventor： Hirotada SEKI ,  Hiroshi EGUCHI ,  Natsuyo IDA ,  Junichi MASUDA ,  Masahiro NONOYAMA ,  Akimasa ISHIKAWA

IPC: G03G15/00 ,  H04R1/08

CPC classification number: G03G15/55 ,  G03G21/0011 ,  H04R1/08

Abstract: An abnormality determination apparatus includes: an audio data acquisitor that acquires audio data of an apparatus to be judged for determining presence or absence of abnormality; an abnormal sound detector that detects an abnormal sound based on the audio data acquired by the audio data acquisitor; and a hardware processor that determines whether the abnormal sound is such a sound that an operation of the apparatus to be judged should be restricted based on a subsequent secular change of the abnormal sound when the abnormal sound is detected by the abnormal sound detector, and restricts the operation of the apparatus to be judged when the hardware processor determines that the abnormal sound is such a sound that the operation of the apparatus to be judged should be restricted.

公开(公告)号：US20150256079A1

公开(公告)日：2015-09-10

申请号：US14643398

申请日：2015-03-10

Applicant: Konica Minolta, Inc.

Inventor： Taku KIMURA ,  Mikiyuki AOKI ,  Hideki NAKAMURA ,  Masahiro NONOYAMA ,  Junichi MASUDA ,  Yohei YAMADA

IPC: H02J1/00 ,  G03G15/00

CPC classification number: G03G15/80 ,  H02M3/33507 ,  H02M7/217 ,  H02M2001/0035 ,  H02M2001/007 ,  H02M2001/008 ,  Y02B70/16

Abstract: An electric power supply control device comprises AC/DC converter, DC/DC converters, and an output electrical voltage monitor unit of the AC/DC converter. When output electrical voltage of the AC/DC converter increases to the first preset value P1, the AC/DC converter stops the convert. When the output electrical voltage decreases to the second preset value P2, the AC/DC converter restarts the convert. The first preset value P1 is equal to or less than the lowest value, out of the upper limit values in electrical voltage ranges in which the DC/DC converters CV1 and CV2 can work. The second preset value P2 is more than or equal to the highest value, out of the lower limit values in electrical voltage ranges in which the DC/DC converters CV1 and CV2 can work.

Abstract translation: 电源控制装置包括AC / DC转换器，DC / DC转换器和AC / DC转换器的输出电压监视器单元。 当AC / DC转换器的输出电压升高到第一预设值P1时，AC / DC转换器停止转换。 当输出电压降至第二预设值P2时，AC / DC转换器重新启动转换。 在DC / DC转换器CV1和CV2可以工作的电压范围内，第一预置值P1等于或小于最低值。 在DC / DC转换器CV1和CV2可以工作的电压范围内，第二预设值P2大于或等于最大值。

公开(公告)号：US20190302671A1

公开(公告)日：2019-10-03

申请号：US16285276

申请日：2019-02-26

Applicant: KONICA MINOLTA, INC.

Inventor： Hiroshi EGUCHI ,  Natsuyo IDA ,  Junichi MASUDA ,  Masahiro NONOYAMA ,  Akimasa ISHIKAWA

IPC: G03G15/00

Abstract: An image forming apparatus includes: a first rotor and a second rotor that are each a rotatable member; a first movable member including the first rotor or a transferer that transfers power of the first rotor to another member; a second movable member including the second rotor or a transferer that transfers power of the second rotor to another member; a hardware processor that drives simultaneously the first rotor and the second rotor at mutually different numbers of revolutions or speeds, and performs abnormality diagnosis on the first movable member and the second movable member, based on the sounds of operation acquired by the sound acquirer; and a sound acquirer that acquires sounds of operation of the first movable member and the second movable member with the first rotor and the second rotor being driven by the hardware processor.

公开(公告)号：US20210364973A1

公开(公告)日：2021-11-25

申请号：US17313250

申请日：2021-05-06

Applicant: Konica Minolta, Inc.

Inventor： Taku KIMURA ,  Masahiro NONOYAMA ,  Junichi MASUDA ,  Masahiro KAMIYA ,  Katsuhide SAKAI

IPC: G03G15/00

Abstract: A recording medium conveyance device includes storage that stores a recording medium, a conveyer that takes out the recording medium stored in the storage and conveys the recording medium as a conveyed object, an ultrasonic sensor that outputs a value indicating an attenuation amount of an ultrasonic wave caused by the conveyed object and a hardware processor, wherein the hardware processor executes an overlay detection process of detecting whether the conveyed object is in an overlay state in which a gap is present based on a result of output by the ultrasonic sensor, and prevents execution of the overlay detection process with respect to a first conveyed object that is to be conveyed first by the conveyer.

公开(公告)号：US20180120742A1

公开(公告)日：2018-05-03

申请号：US15793765

申请日：2017-10-25

Applicant: Konica Minolta, Inc.

Inventor： Junichi MASUDA ,  Mikiyuki AOKI ,  Toru KASAMATSU ,  Masahiro NONOYAMA ,  Akimasa ISHIKAWA

IPC: G05F1/00 ,  G03G15/20

CPC classification number: G03G15/2039 ,  G03G15/5004 ,  G03G15/80 ,  G03G2215/00666

Abstract: A phase control device includes: at least one switching element connected to an AC power source, the switching element being capable of: turning on and off at specified timings; delivering AC power to a load upon turn-on and cutting it off upon turn-off; and keeping an on-time from the start to the end of turn-on and an off-time from the start to the end of turn-off, the on-time and off-time being variable; a timing setting portion that sets a turn-on and turn-off timing for turning on and off the switching element; a judgment portion that judges whether or not the turn-on and turn-off timing are on at a phase within a first or second phase range; and a processor that starts turning on and off the switching element at the turn-on and turn-off timing, the processor being capable of adjusting the on-time and off-time depending on the judgment result.

公开(公告)号：US20160337539A1

公开(公告)日：2016-11-17

申请号：US15135766

申请日：2016-04-22

Applicant: KONICA MINOLTA, INC.

Inventor： Junichi MASUDA ,  Mikiyuki AOKI ,  Masahiro NONOYAMA ,  Taku KIMURA

IPC: H04N1/00 ,  H02J4/00

CPC classification number: H04N1/00888 ,  H02J5/00 ,  H02M3/156 ,  H02M3/33507 ,  H02M7/00 ,  H02M7/06 ,  H02M2001/0006 ,  H02M2001/007 ,  H04N1/00899 ,  H04N2201/0094

Abstract: A power control device receiving supply of power from a power source, the power control device including: a power accumulator accumulating a part of power from the power source; a first voltage converter receiving power from the power source and the power accumulator, performing voltage conversion to a first target voltage, and supplying power with the first target voltage to a first load; a second voltage converter receiving power from the first voltage converter, performing voltage conversion to a second target voltage, and supplying power with the second target voltage to a second load; a power source monitor monitoring power from the power source; and a power controller lowering the first target voltage to a level that the second voltage converter is capable of converting to the second target voltage when the power source monitor detects that the supply of power from the power source has stopped.

Abstract translation: 一种从电源接收电力的电力控制装置，所述电力控制装置包括：积蓄器，其从所述电源蓄积一部分电力; 第一电压转换器，从所述电源和所述蓄电器接收电力，对第一目标电压进行电压转换，并将第一目标电压的功率提供给第一负载; 从第一电压转换器接收电力的第二电压转换器，对第二目标电压进行电压转换，并将第二目标电压的电力提供给第二负载; 监视来自电源的电源的电源监视器; 以及功率控制器，当电源监视器检测到来自电源的电力供应已经停止时，将第一目标电压降低到能够转换为第二目标电压的电平。