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公开(公告)号：US20190183348A1
公开(公告)日：2019-06-20
申请号：US16223146
申请日：2018-12-18
Applicant: HITACHI, LTD.
Inventor： Shinsuke ONOE , Takahiro MATSUDA , Yoshiho SEO , Satoshi OUCHI , Tomohiko TANAKA , Taiichi TAKEZAKI , Ryo IMAI
CPC classification number: A61B5/0095 , A61B5/0062 , G01S17/08 , G02B26/0858 , G02B26/10
Abstract: An optical scanning device includes: an optical scanning unit configured to repeatedly scan an irradiation destination of irradiation light to a predetermined trajectory; a light emission control unit configured to control light emission of the irradiation light to irradiate irradiation points to the predetermined trajectory; and a driving signal generation unit configured to generate a driving signal for driving the optical scanning unit, wherein the light emission control unit irradiates the irradiation points to the predetermined trajectory so that the irradiation points are substantially uniformly dispersed in a region in which a density of the irradiation points is relatively low in a region in which the irradiation light is irradiated.
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公开(公告)号：US20180296094A1
公开(公告)日：2018-10-18
申请号：US15580072
申请日：2016-03-24
Applicant: HITACHI, LTD.
Inventor： Toshiteru NAKAMURA , Satoshi OUCHI , Yoshiho SEO , Kouji FUJITA , Shinsuke ONOE , Kenichiro YAMADA , Tomoto KAWAMURA
IPC: A61B5/00
CPC classification number: A61B5/0073 , A61B5/0066 , G01S7/481 , G01S7/4817 , G01S7/4818 , G02B6/00 , G02B26/103
Abstract: An object of the invention is to provide a technology for further improving scanning performance. Provided is an optical scanning device including: a scanning unit including an optical waveguide configured to guide incident light and emit the light from an emission end, and a vibration unit configured to generate a vibration and vibrate the emission end; and a signal transmission unit configured to transmit a signal to the scanning unit and cause the scanning unit to scan an object, characterized in that the scanning unit includes a first bonding and vibration attenuating unit configured to bond, with an elastic member, an end surface of the vibration unit closer to the emission end and the optical waveguide.
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公开(公告)号：US20220066427A1
公开(公告)日：2022-03-03
申请号：US17007556
申请日：2020-08-31
Applicant: Hitachi, Ltd.
Inventor： Yoshiho SEO
IPC: G05B19/418 , G06F8/61 , G05B19/05
Abstract: Example implementations described herein are directed to systems and methods for deploying function packages onto machines connected to an Internet of Things (IoT) network. The function packages can include updates for machine functions or sensor functions, and can be triggered for deployment while the factory floor is running. Through the example implementations described herein, appropriate function packages can be scheduled and deployed to corresponding machines or sensors in response to an event occurring on the factory floor.
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Patent Agency Ranking
公开(公告)号：US20190167229A1
公开(公告)日：2019-06-06
申请号：US16209525
申请日：2018-12-04
Applicant: HITACHI, LTD.
Inventor： Taiichi TAKEZAKI , Shuntaro MACHIDA , Hiroaki HASEGAWA , Tomohiko TANAKA , Ryo IMAI , Yoshiho SEO , Takahiro MATSUDA , Shinsuke ONOE
Abstract: An ultrasound imaging probe capable of securing an assembly accuracy of and improving a resolution performance of an obtained image is provided. A photoacoustic catheter includes: a silicon substrate which includes an ultrasonic transducer for detecting an ultrasonic wave formed thereon and a through hole passing through front and rear surfaces; an optical fiber which oscillates a laser; a lens which condenses the laser and is arranged within the through hole; a tubular housing; a glass cover which covers the lens; and a resin which fills a gap between the through hole and the lens. Further, the silicon substrate and the optical fiber are fixed to a part of the housing in the housing.
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公开(公告)号：US20190204589A1
公开(公告)日：2019-07-04
申请号：US16218661
申请日：2018-12-13
Applicant: Hitachi, Ltd.
Inventor： Takahiro MATSUDA , Yoshiho SEO , Satoshi OUCHI , Shinsuke ONOE
CPC classification number: G02B26/101 , G02B26/0858 , H01L41/092
Abstract: In an optical scanner 100, a vibration portion 101 includes first and third elements 3021 and 3023 that vibrate a light guide path 102 in a direction substantially perpendicular to an optical axis direction, and second and fourth elements 3022 and 3024 that vibrate the light guide path in a direction substantially perpendicular to a vibration direction thereof. A driving signal is applied to each of electrodes 3011 to 3014, each of which corresponds to one electrode of each of the first to fourth elements, and the other electrode 3015 is used as a common electrode having a floating potential. A driving signal generator 1007 generates a driving signal such that a median value of driving signals Vy1and Vy2 applied to the first and third elements and a median value of driving signals Vx1 and Vx2 applied to the second and fourth elements correspond to substantially the same value.
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公开(公告)号：US20210168264A1
公开(公告)日：2021-06-03
申请号：US16627914
申请日：2018-06-01
Applicant: Hitachi, Ltd.
Inventor： Takahiro MATSUDA , Yoshiho SEO , Satoshi OUCHI , Shinsuke ONOE
Abstract: To propose an optical scanning method for a video device including an optical scanning unit in which one end of a light guide path has a protruding beam-shaped structure. The video device includes the optical scanning unit having the light guide path in which light enters from one end and emits from the other end, and a vibration unit configured to apply vibration to the light guide path via a joint unit in a vicinity of the other end of the light guide path; a drive signal generation unit that generates a drive signal for inducing vibration in the vibration unit; and a scanning trajectory control unit which has a function of independently vibrating the light guide path in a first direction substantially perpendicular to an optical axis direction of the light guide path, and in a second direction substantially perpendicular to the optical axis direction of the light guide path and substantially perpendicular to the first direction by the vibration unit, and which generates a first drive signal configured to drive the vibration unit in the first direction and a second drive signal configured to drive the vibration unit in the second direction with any pattern. The scanning trajectory control unit generates the first drive signal and the second drive signal as sine waves having different phases and a substantially same frequency, and sets a modulation amount of an amplitude modulation of a sine wave of the second drive signal to be larger than a modulation amount of an amplitude modulation of a sine wave of the first drive signal.
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公开(公告)号：US20190014989A1
公开(公告)日：2019-01-17
申请号：US15923810
申请日：2018-03-16
Applicant: Hitachi, Ltd.
Inventor： Tomohiko TANAKA , Taiichi TAKEZAKI , Ryo IMAI , Yoshiho SEO , Takahiro MATSUDA , Shinsuke ONOE , Takeshi SAKAMOTO , Kimio TANAKA , Ryo KAWAMURA , Yoshiyuki SEYA , Yutaka WATANABE
IPC: A61B5/00
Abstract: Treatment with an acoustic catheter is disclosed. A photoacoustic catheter system includes an imaging laser beam generator that generates an imaging laser beam used for imaging; a treatment laser beam generator that generates a treatment laser beam used for treatment; a driver that provides driving to cause the imaging laser beam and the treatment laser beam to be emitted in a predetermined direction with respect to an advancing direction of a catheter; an acoustic element that receives an acoustic wave generated due to irradiation of the imaging laser beam; and a treatment laser beam controller, wherein the treatment laser beam controller synchronously emits the imaging laser beam and the treatment laser beam so as to be directionally aligned with each other.
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公开(公告)号：US20180205854A1
公开(公告)日：2018-07-19
申请号：US15869830
申请日：2018-01-12
Applicant: Hitachi, Ltd.
Inventor： Shinsuke ONOE , Toshiteru NAKAMURA , Kenichiro YAMADA , Takahiro MATSUDA , Yoshiho SEO
CPC classification number: H04N3/02 , G01S7/4817 , G01S7/4818 , G01S17/08 , G01S17/42 , G02B6/4206 , G02B6/4239 , H04N3/28
Abstract: An optical scanning device for displaying or capturing an image is used, the device including: an optical scanning unit configured to scan emitted light while drawing a spiral trajectory, wherein the unit includes: a light guide path configured to guide incident light to output the emitted light from an emission end; and a vibration unit configured to vibrate the emission end; a light emission control unit configured to control light emission of the emitted light; a polar coordinate generation unit configured to generate a radius and a deflection angle relating to the spiral trajectory; a driving signal generation unit configured to generate a driving signal for driving the vibration unit; an angle correction unit configured to perform calculation for correcting an angle based on information from the driving signal generation unit and output an corrected angle; and a coordinate calculation unit configured to calculate coordinates of an image.
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