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51. 发明授权

US10933642B2 Ink jet recording apparatus 有权
公开(公告)号：US10933642B2
公开(公告)日：2021-03-02
申请号：US16515680
申请日：2019-07-18
申请人： Hitachi Industrial Equipment Systems Co., Ltd.
发明人： Takahiro Arima , Sho Mizoguchi , Mamoru Okano
IPC分类号： B41J2/165 , B41J2/08 , B41J2/185
摘要： An ink jet recording apparatus includes an ink container in which ink to be used to perform printing on a print target is stored, a nozzle which is connected to the ink container and from which pressurized and supplied ink is jetted, charging electrodes that charge ink particles jetted from the nozzle with electricity, deflecting electrodes that polarize the ink particles charged with electricity by the charging electrodes, a gutter that recovers ink not used for printing, a solvent container in which a solvent is stored, and a liquid nozzle which is connected to the solvent container and from which a pressurized and supplied solvent is jetted. The liquid nozzle includes a liquid flow passage portion that extends from the nozzle in a direction of the gutter, and a liquid jet hole that is formed at an angle allowing the pressurized and supplied solvent to hit the nozzle through the liquid flow passage portion.

52. 发明授权

US10907636B2 Package-type compressor 有权
公开(公告)号：US10907636B2
公开(公告)日：2021-02-02
申请号：US16084071
申请日：2016-05-09
申请人： Hitachi Industrial Equipment Systems Co., Ltd.
发明人： Kosuke Sadakata , Toshikazu Harashima , Hitoshi Nishimura , Kentaro Yamamoto , Masahiko Takano
IPC分类号： F04C29/04 , F04B35/04 , F04B39/06 , F04B53/00 , F04B53/08 , F04B39/12
摘要： Provided is a package-type compressor that can improve cooling performance for cooling a body unit and a control panel. The package-type compressor includes: a cooling fan accommodated in a fan duct to induce a flow of cooling air taken in through inlets and discharged through an outlet; a machine chamber that causes the cooling air taken in at the inlet to flow along a body unit; and a cooling duct that causes the cooling air taken in at the inlet to flow along the control panel. A center position of the suction port of the fan duct is offset away from the inlet and toward the inlet with respect to a center position of a drive shaft of a motor of the body unit.

53. 发明授权

US10903767B2 Synchronous motor control apparatus 有权
公开(公告)号：US10903767B2
公开(公告)日：2021-01-26
申请号：US16483813
申请日：2018-03-02
申请人： Hitachi Industrial Equipment Systems Co., Ltd.
发明人： Agnes Hadinata , Yoshitaka Iwaji , Kazuaki Tobari , Yusaku Onuma , Takuya Sugimoto , Masato Ohya
IPC分类号： H02P6/18
摘要： According to the present invention, in position sensorless control for switching between a 120-degree energization scheme for a low-speed region and a 180-degree energization scheme for a mid-to-high-speed region, stable and highly accurate speed control characteristics are provided by suppressing speed deviation Δωr in the low-speed region, and by preventing current jump-up caused by a discontinuous rotational speed occurring during switching to the mid-to-high-speed region. In the case of driving in the 120-degree energization scheme, a voltage command value is corrected such that an estimated speed value or a detected speed value follows a speed command.

54. 发明授权

US10874012B2 Biosafety cabinet and clean air device 有权
公开(公告)号：US10874012B2
公开(公告)日：2020-12-22
申请号：US16325242
申请日：2017-04-24
申请人： Hitachi Industrial Equipment Systems Co., Ltd.
发明人： Takeshi Kaneko , Hirotoshi Sato
IPC分类号： H05F3/06 , C12M1/12 , B01L1/00 , A61G10/00 , F24F3/16 , F24F7/06 , B01L1/04 , B01D46/42
CPC分类号： H05F3/06 , A61G10/00 , B01L1/04 , B01L1/50 , C12M37/00 , F24F3/16 , F24F7/06 , B01D46/4209 , B01D2279/51 , B01L2200/082 , B01L2200/085
摘要： The purpose of the present invention is to provide a clean air device that can reduce the risk of contamination due to static electricity. Provided is a biosafety cabinet or a clean air device that connects a biosafety cabinet and a clean booth, wherein a static eliminator (ionizer) that generates a corona discharge by way of concentrating an electric field on a needle-shaped discharge electrode and eliminates static with ionized air is disposed directly above an air flow branching point where air supplied to a work space branches to the front face and to rear face inside the biosafety cabinet.

55. 发明授权

US10857787B2 Inkjet recording device 有权
公开(公告)号：US10857787B2
公开(公告)日：2020-12-08
申请号：US15681711
申请日：2017-08-21
申请人： Hitachi Industrial Equipment Systems Co., Ltd.
发明人： Takahiro Arima , Akira Maeda , Mamoru Okano
IPC分类号： B41J2/04 , B41J2/045 , B41J2/185 , B41J2/08 , B41J2/085 , B41J2/07 , B41J2/175 , B41J2/02 , B41J2/03
摘要： Provided is an inkjet recording device, including a print head that includes a head base including: a nozzle from which ink is ejected; charging electrodes that charge the ink ejected from the nozzle; deflection electrodes that deflect the ink charged by the charging electrodes; and a gutter that collects ink not used in printing, and a head cover included in the head base, wherein the head base has a first horizontal uneven side portion, an oblique uneven side portion, and a second horizontal uneven side portion.

56. 发明授权

US10843183B2 Isolation device with built-in particle counter 有权
公开(公告)号：US10843183B2
公开(公告)日：2020-11-24
申请号：US16309337
申请日：2017-05-12
申请人： Hitachi Industrial Equipment Systems Co., Ltd.
发明人： Keiichi Ono , Tomoyuki Suzuki
IPC分类号： B01L1/00 , B01L1/02 , B01L1/04 , G01N15/06 , G01N33/00
CPC分类号： B01L1/00 , B01L1/025 , B01L1/04 , G01N15/06 , G01N33/0009
摘要： An isolation device for supplying a workspace with clean air resulting from dust filtration by an air cleaning means accurately manages the number of fine particles in a workspace and prevents fine particles from mixing with an experimental material. The isolation device includes a measurement probe; a particle counter for measuring the fine-particle counts for a plurality of particle sizes in the workspace air and outputting the measurements; a storage unit for storing, for each of the plurality of particle sizes and for work times and non-work times, management fine-particle counts at which the number of fine particles per unit volume is determined to be large; a cleanliness determination unit that compares the fine particle counts and the management fine-particle counts; and an output unit for outputting an alarm when the work-time/non-work time fine particle count for a particle size in the workspace exceeds the corresponding management fine-particle count.

57. 发明授权

US10838666B2 Inkjet recording apparatus system and display unit 有权
公开(公告)号：US10838666B2
公开(公告)日：2020-11-17
申请号：US16308665
申请日：2016-06-29
申请人： Hitachi Industrial Equipment Systems Co., Ltd.
发明人： Takashi Kawano , Nobuhiro Harada , Takahiro Takahashi
IPC分类号： G06F3/12 , B41J2/14 , B41J2/165 , B41J29/38 , G06Q30/02 , G06Q30/00 , G03G21/00 , B41J2/175 , B41J2/085 , B41J2/09
CPC分类号： G06F3/12 , B41J2/085 , B41J2/09 , B41J2/14 , B41J2/165 , B41J2/16517 , B41J2/17503 , B41J29/38 , G03G21/00 , G06Q30/00 , G06Q30/02
摘要： In an existing service points granting method, service points are changed according to whether the ink ejection amount is corrected. However, changing the service points according to a user's purchases or purchase frequency for components or services has not been considered. A display unit displays products or services relevant to an ink jet recording apparatus, points corresponding to the products or services, and cumulative points possessed by each customer.

58. 发明授权

US10630120B2 Axial-air-gap motor and bobbin for motor 有权
公开(公告)号：US10630120B2
公开(公告)日：2020-04-21
申请号：US15129716
申请日：2014-12-19
申请人： Hitachi Industrial Equipment Systems Co., Ltd.
发明人： Toru Sakai , Katsuyuki Yamazaki
IPC分类号： H02K3/46 , H02K1/18 , H02K3/52
CPC分类号： H02K1/182 , H02K3/46 , H02K3/521
摘要： An axial-air-gap motor integrally configured by resin molding, a plurality of stator cores being arranged in an annular configuration, wherein the resin is spread in an efficient manner. An axial-air-gap motor, provided with: a plurality of stator cores, a stator, and one or more rotors. The stator cores are provided with a teeth iron core having the shape of an approximate trapezoidal cylinder, a bobbin covering at least the vicinity of both end parts of the outer periphery of the teeth iron core, flange parts provided in the vicinity of the portions of the bobbin that cover the both end parts of the outer periphery of the teeth iron core so as to extend for a predetermined length in a direction perpendicular to the outer periphery of the teeth iron core, and at least one protrusion further extending from the tip of the flange part in the direction of extension. The extension-direction tip of each of the protrusions is brought into contact, in the direction of rotation of an output shaft, with the extension-direction end part of the flange part of another stator core, the stator cores being arranged in an annular shape about the axial direction of the output shaft. The stator cores are integrally molded using a resin to form the stator. The one or more rotors are in a planar-faced configuration with the side surfaces of the end part of the teeth iron core, interposed by a predetermined air gap.

59. 发明授权

US10563650B2 Compressor 有权
公开(公告)号：US10563650B2
公开(公告)日：2020-02-18
申请号：US15509907
申请日：2014-11-27
申请人： Hitachi Industrial Equipment Systems Co., Ltd.
发明人： Fuminori Kato , Yoshiyuki Kanemoto , Shumpei Yamazaki
IPC分类号： F04B49/06 , F04B49/10 , F02D35/00 , F02D35/02 , F02D41/14
摘要： Provided is a compressor capable of calculating the correct time remaining before maintenance. The compressor is provided with: a compressor body that compresses fluid; a motor that drives the compressor body; a temperature sensor that detects the temperature of the compressor; a pressure sensor that detects the pressure of the compressed fluid outputted from the compressor body; and a calculation unit that calculates the time remaining before maintenance for the compressor body, using the temperature of the compressor and the pressure of the compressed fluid assigned with respective predetermined weights. The calculation unit changes the weighting of the temperature according to the pressure of the compressed fluid or the operation rate of the compressor body.

60. 发明授权

US10514026B2 Fluid compression system and control device therefor 有权
公开(公告)号：US10514026B2
公开(公告)日：2019-12-24
申请号：US14766240
申请日：2013-02-08
申请人： Hitachi Industrial Equipment Systems Co., Ltd.
发明人： Zhijia Ren , Hironobu Takayasu , Yoshiyuki Kanemoto
IPC分类号： F04B41/06 , F04C11/00 , F04C14/02 , F04B49/06 , F04B41/00 , F04B41/02
摘要： An object of the present invention is to provide a fluid compression system which can supply compressed fluid in accordance with a sudden change in an amount of fluid used even when the number of compressors to be installed is increased, and a control device thereof.In order to solve the problem, provided is a fluid compression system, including: a plurality of compression devices which compress fluid; and a number of device controller which controls the number of operating compression devices of the plurality of compression devices, in which at least one of the plurality of compression devices is configured of a plurality of compressor main bodies, and performs a volume control operation which changes the number of operating compression devices in accordance with an amount of compressed fluid used, or a fixed control operation which does not change an output during the operation regardless of the amount of the compressed fluid used, and the number of device controller switches a state where the plurality of compression devices perform the volume control operation and a state where the compression devices perform the fixed control operation.

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