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公开(公告)号：US10717293B2
公开(公告)日：2020-07-21
申请号：US16224871
申请日：2018-12-19
发明人： Hiroyuki Ishikawa
摘要： In accordance with an embodiment, a liquid circulation apparatus comprises a liquid chamber configured to hold liquid which is to be supplied to a liquid ejection section ejecting liquid, a circulation section configured to circulate the liquid between the liquid chamber and the liquid ejection section, a liquid replenishment section configured to replenish liquid to the liquid chamber, a gas replenishment section configured to replenish gas to the liquid chamber, a pressure detection section configured to detect pressure of the liquid chamber, and a control section configured to adjust pressure of the liquid ejection section by replenishing the liquid to the liquid chamber with the liquid replenishment section and replenishing the gas to the liquid chamber with the gas replenishment section.
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2.发明申请公开(公告)号：US20190199887A1
公开(公告)日：2019-06-27
申请号：US16288174
申请日：2019-02-28
发明人： Hiroyuki Ishikawa , Koji Tanimoto
IPC分类号： H04N1/40 , G03G15/04 , G06K15/12 , G03G15/043 , G06K15/02
CPC分类号： H04N1/40037 , G03G15/04054 , G03G15/043 , G06K15/027 , G06K15/1238 , G06K15/1247 , H04N1/40031 , H04N2201/0082
摘要： An optical print head comprises a first light emitting element row, a second light emitting element row, a lens array, a first drive circuit and a second drive circuit. The first light emitting element row includes the arrangement of first light emitting elements. The second light emitting element row includes second light emitting elements arranged in parallel with the first light emitting element row. The lens array concentrates light emitted by the first light emitting elements and the second light emitting elements. The first drive circuit drives each first light emitting element with an identical first current value. The second drive circuit drives each second light emitting element with an identical second current value different from the first current value.
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公开(公告)号：US20190118546A1
公开(公告)日：2019-04-25
申请号：US16224871
申请日：2018-12-19
发明人： Hiroyuki Ishikawa
CPC分类号： B41J2/18 , B41J2/14233 , B41J2/175 , B41J2/17509 , B41J2/17556 , B41J2/17596 , B41J29/38 , B41J2002/14419 , B41J2002/1853 , B41J2202/12
摘要： In accordance with an embodiment, a liquid circulation apparatus comprises a liquid chamber configured to hold liquid which is to be supplied to a liquid ejection section ejecting liquid, a circulation section configured to circulate the liquid between the liquid chamber and the liquid ejection section, a liquid replenishment section configured to replenish liquid to the liquid chamber, a gas replenishment section configured to replenish gas to the liquid chamber, a pressure detection section configured to detect pressure of the liquid chamber, and a control section configured to adjust pressure of the liquid ejection section by replenishing the liquid to the liquid chamber with the liquid replenishment section and replenishing the gas to the liquid chamber with the gas replenishment section.
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公开(公告)号：US20230062536A1
公开(公告)日：2023-03-02
申请号：US17852441
申请日：2022-06-29
发明人： Hiroyuki Ishikawa , Sadatoshi Oishi
摘要： A communication device includes an antenna, a driving unit, a first acquisition unit, an input unit, and a second acquisition unit. The driving unit moves a position of the antenna. The first acquisition unit acquires tag data of each radio tag based on a radio wave of each radio tag received by the antenna at a plurality of positions of the antenna. The input unit inputs the tag data of each radio tag at the plurality of positions of the antenna into a learned model. The second acquisition unit acquires, from the learned model, data indicating whether each radio tag is included in a first range or a second range based on the input of the tag data of each radio tag into the learned model by the input unit.
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公开(公告)号：US11006465B2
公开(公告)日：2021-05-11
申请号：US16445493
申请日：2019-06-19
发明人： Hiroyuki Ishikawa
摘要： According to one embodiment, a communication apparatus includes a transmitting section, a receiving section, a confirming section, and a communication section. The transmitting section performs broadcast transmission of a command in a plurality of different channels. The receiving section receives various kinds of information necessary for establishment of wireless connection, the various kinds of information being transmitted by a peripheral apparatus that receives the command. The confirming section confirms, based on the reception of the various kinds of information by the receiving section, in which of the channels the communication apparatus is capable of communicating with the peripheral apparatus. The communication section establishes the wireless connection to the peripheral apparatus using the channel confirmed by the confirming section.
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公开(公告)号：US10972173B2
公开(公告)日：2021-04-06
申请号：US16458299
申请日：2019-07-01
发明人： Sunao Tsuchida , Hiroyuki Ishikawa
IPC分类号： H04B7/155 , H04L12/733 , H04W84/18
摘要： In accordance with an embodiment, a wireless communication device constituting a wireless mesh network that transmits information through multi-hop communication comprises a communication section configured to transmit a message addressed to a wireless communication device different from its own wireless communication device through broadcast communication on a first frequency channel; and a control section configured to change a communication channel of the communication section from the first frequency channel to a second frequency channel for communication of a response signal responding to the message after the message is transmitted by the communication section.
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7.发明申请公开(公告)号：US20180241907A1
公开(公告)日：2018-08-23
申请号：US15955945
申请日：2018-04-18
发明人： Hiroyuki Ishikawa , Koji Tanimoto
IPC分类号： H04N1/40 , G06K15/12 , G03G15/043 , G06K15/02
CPC分类号： H04N1/40037 , G03G15/04054 , G03G15/043 , G06K15/027 , G06K15/1238 , G06K15/1247 , H04N1/40031 , H04N2201/0082
摘要： An optical print head comprises a first light emitting element row, a second light emitting element row, a lens array, a first drive circuit and a second drive circuit. The first light emitting element row includes the arrangement of first light emitting elements. The second light emitting element row includes second light emitting elements arranged in parallel with the first light emitting element row. The lens array concentrates light emitted by the first light emitting elements and the second light emitting elements. The first drive circuit drives each first light emitting element with an identical first current value. The second drive circuit drives each second light emitting element with an identical second current value different from the first current value.
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公开(公告)号：US09878535B2
公开(公告)日：2018-01-30
申请号：US15244239
申请日：2016-08-23
发明人： Yoshiaki Kaneko , Shinichiro Hida , Tetsuya Sato , Kazuhiro Hara , Kazuhiko Ohtsu , Hiroyuki Ishikawa
CPC分类号： B41J2/04563 , B41J2/04581 , B41J2/14233 , B41J2/175 , B41J2/17596 , B41J2/18 , B41J2/195 , B41J2202/12
摘要： In accordance with an embodiment, an ink circulation device comprises a pressure chamber including at least two flow holes through which ink flows; a piezoelectric vibration plate constituting a part of a wall of the pressure chamber and to be driven to increase or decrease an inner volume of the pressure chamber; a valve for opening and closing at least one of the two flow holes; a heater affixed on the piezoelectric vibration plate; and a connection section connecting the pressure chamber to an inkjet head.
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9.发明申请公开(公告)号：US20170353622A1
公开(公告)日：2017-12-07
申请号：US15429437
申请日：2017-02-10
发明人： Hiroyuki Ishikawa , Koji Tanimoto
IPC分类号： H04N1/40 , G03G15/043 , G06K15/12
CPC分类号： H04N1/40037 , G03G15/04054 , G03G15/043 , G06K15/027 , G06K15/1238 , G06K15/1247 , H04N1/40031 , H04N2201/0082
摘要： An optical print head comprises a first light emitting element row, a second light emitting element row, a lens array, a first drive circuit and a second drive circuit. The first light emitting element row includes the arrangement of first light emitting elements. The second light emitting element row includes second light emitting elements arranged in parallel with the first light emitting element row. The lens array concentrates light emitted by the first light emitting elements and the second light emitting elements. The first drive circuit drives each first light emitting element with an identical first current value. The second drive circuit drives each second light emitting element with an identical second current value different from the first current value.
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10.发明申请LIQUID CIRCULATION DEVICE, LIQUID DISCHARGE DEVICE AND LIQUID DISCHARGE METHOD 有权液体循环装置，液体排出装置和液体排放方法公开(公告)号：US20160288524A1
公开(公告)日：2016-10-06
申请号：US15088594
申请日：2016-04-01
发明人： Hiroyuki Ishikawa , Kazuhiko Ohtsu
IPC分类号： B41J2/18
CPC分类号： B41J2/18 , B41J2/14233 , B41J2/1433 , B41J2/175 , B41J2/17513 , B41J2/17566 , B41J2/185 , B41J29/38 , B41J2002/14354 , B41J2002/1856 , B41J2202/12
摘要： A liquid circulation device comprises a liquid chamber connected with a liquid discharge section that discharges liquid, a circulation section which circulates the liquid in a flow path containing the liquid chamber and the liquid discharge section, a liquid supply section, a pressure adjustment section and a control section that, according to fluctuation velocity of the pressure, replenishes the liquid through the liquid supply section if the detected pressure is equal to or smaller than a predetermined pressure value or lower than the predetermined pressure value and the pressure fluctuation velocity is equal to or greater than a predetermined speed or faster than the predetermined speed and adjusts the pressure of the liquid discharge section through the pressure adjustment section and the pressure fluctuation velocity is slower than the predetermined speed or equal to or smaller than the predetermined speed.
摘要翻译： 液体循环装置包括与排出液体的液体排放部分连接的液体室，在包含液体室和液体排出部分的流动路径中使液体循环的循环部分，液体供应部分，压力调节部分和 控制部，根据压力的波动速度，如果检测压力等于或小于预定压力值或低于预定压力值，并且压力波动速度等于或等于或等于或等于或等于 大于预定速度或比预定速度快，并且通过压力调节部分调节液体排出部分的压力，并且压力波动速度比预定速度慢或等于或小于预定速度。
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