公开(公告)号：US20150364674A1

公开(公告)日：2015-12-17

申请号：US14835371

申请日：2015-08-25

Applicant: FUJIFILM Corporation

Inventor： Tsutomu SASAKI ,  Masayuki SUZUKI

IPC: H01L41/187 ,  C30B7/10 ,  C30B29/32 ,  H01L41/18

CPC classification number: H01L41/1876 ,  C01G25/006 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2004/62 ,  C04B35/491 ,  C04B2235/52 ,  C04B2235/522 ,  C04B2235/5252 ,  C04B2235/5436 ,  C04B2235/5445 ,  C30B7/10 ,  C30B28/04 ,  C30B29/32 ,  C30B29/60 ,  H01L41/183 ,  H01L41/39 ,  Y10T428/2982

Abstract: The present invention provides oxide particles having a compositional formula of Pb(ZrxTi1-x)O3, wherein x is 0.46≦x≦0.6; wherein a size of the particle is from 0.5 to 10 μm; a porosity of a surface of the particle is 20% or less; and a shape of the particle is any one of a cube, a rectangular parallelepiped, or a truncated octahedron.

Abstract translation: 本发明提供具有Pb（Zr x Ti 1-x）O 3的组成式的氧化物颗粒，其中x为0.46＆lt; lE; x＆lt; lE; 0.6; 其中所述颗粒的尺寸为0.5至10μm; 颗粒表面的孔隙率为20％以下; 并且该颗粒的形状是立方体，长方体或截头八面体中的任何一种。

公开(公告)号：US20240114801A1

公开(公告)日：2024-04-04

申请号：US18458127

申请日：2023-08-29

Applicant: FUJIFILM CORPORATION

Inventor： Seigo NAKAMURA ,  Hiroyuki KOBAYASHI ,  Shinya SUGIMOTO ,  Tsutomu SASAKI

IPC: H10N30/853 ,  H10N30/06 ,  H10N30/20 ,  H10N30/88

CPC classification number: H10N30/8554 ,  H10N30/06 ,  H10N30/2047 ,  H10N30/883

Abstract: A piezoelectric element includes a substrate; and a first electrode, a first piezoelectric film, a second electrode, a second piezoelectric film, and a third electrode which are provided on the substrate in this order, in which both the first piezoelectric film and the second piezoelectric film contain a perovskite-type oxide containing Pb at an A site and containing Zr, Ti, and M at a B site as a main component, an M composition ratio in the first piezoelectric film is different from an M composition ratio in the second piezoelectric film, and polarization-electric field hysteresis measured for the first piezoelectric film with the first electrode grounded and the second electrode as a drive electrode, and polarization-electric field hysteresis measured for the second piezoelectric film with the second electrode grounded and the third electrode as a drive electrode are shifted in the same electric field direction with respect to origins thereof.

公开(公告)号：US20230072499A1

公开(公告)日：2023-03-09

申请号：US17889539

申请日：2022-08-17

Applicant: FUJIFILM Corporation

Inventor： Fumihiko MOCHIZUKI ,  Tsutomu SASAKI

IPC: H01L41/047 ,  H01L41/187

Abstract: The piezoelectric laminate and the piezoelectric element have, on a substrate in the following order, a lower electrode layer and a piezoelectric film containing a perovskite-type oxide, in which the lower electrode layer contains a Ta element, contains a Ta nitride on a side closest to the piezoelectric film in a thickness direction of the lower electrode layer, and includes a region where a content of the Ta element changes in the thickness direction, and the change in the content of the Ta element in the thickness direction is continuous.

公开(公告)号：US20210244379A1

公开(公告)日：2021-08-12

申请号：US17242254

申请日：2021-04-27

Applicant: FUJIFILM Corporation

Inventor： Takamichi FUJII ,  Tsutomu SASAKI

IPC: A61B7/04 ,  A61B5/28 ,  A61B5/00

Abstract: A stethoscope includes a support base; and a detection unit that is supported by the support base and detects a sound generated from an object to be measured, in which the detection unit has a piezoelectric film disposed to face the support base in at least a portion for detecting the sound generated from the object to be measured and convexly curved to a side opposite to the support base, the piezoelectric film includes a piezoelectric layer having two main surfaces facing each other, a first electrode provided on a main surface on a support base side of the two main surfaces, and a second electrode provided on a main surface on a side opposite to the support base, and a strain generated in the piezoelectric film due to the sound generated from the object to be measured is detected as a vibration signal.

公开(公告)号：US20190264103A1

公开(公告)日：2019-08-29

申请号：US16409881

申请日：2019-05-13

Applicant: FUJIFILM Corporation

Inventor： Masashi ONO ,  Tsutomu SASAKI

IPC: C09K11/70 ,  C01B25/08

Abstract: An object of the present invention is to provide a core shell particle having high luminous efficacy and a narrow emission half-width; a method of producing the same; and a film formed of the core shell particle. The core shell particle of the present invention includes: a core which contains a Group III element and a Group V element; a first shell which covers at least a part of a surface of the core; a second shell which covers at least a part of the first shell; and a coordination molecule in at least a part of an outermost surface, in which at least silicon is detected by X-ray photoelectron spectroscopy analysis, and a molar ratio of the silicon to the Group III element contained in the core, which is acquired by X-ray photoelectron spectroscopy analysis, is 3.1 or less.

公开(公告)号：US20240114793A1

公开(公告)日：2024-04-04

申请号：US18458124

申请日：2023-08-29

Applicant: FUJIFILM CORPORATION

Inventor： Hiroyuki KOBAYASHI ,  Seigo NAKAMURA ,  Shinya SUGIMOTO ,  Tsutomu SASAKI

IPC: H10N30/03 ,  H10N30/00 ,  H10N30/05 ,  H10N30/87

CPC classification number: H10N30/03 ,  H10N30/05 ,  H10N30/1071 ,  H10N30/87

Abstract: A piezoelectric element includes a substrate; and a first electrode, a first piezoelectric film, a second electrode, a second piezoelectric film, and a third electrode which are provided on the substrate in this order, in which both the first piezoelectric film and the second piezoelectric film contain PZT having a metal element M doped thereto, as a main component, one piezoelectric film of the first piezoelectric film and the second piezoelectric film has a spontaneous polarization aligned in a film thickness direction, and in a case where in a hysteresis curve showing polarization-voltage characteristics of the one piezoelectric film, a coercive voltage Vcf+ on a positive side and a coercive voltage Vcf− on a negative side, and in polarization-voltage characteristics of the other piezoelectric film, a coercive voltage Vcr+ on a positive side and a coercive voltage Vcr− on a negative sid, |Vcr++Vcr−|

公开(公告)号：US20230380794A1

公开(公告)日：2023-11-30

申请号：US18449713

申请日：2023-08-15

Applicant: FUJIFILM CORPORATION

Inventor： Tsutomu SASAKI

IPC: A61B7/04

CPC classification number: A61B7/04

Abstract: An electronic stethoscope includes: a biological sound sensor that detects a biological sound and outputs an analog-format biological sound signal; an analog system that processes the biological sound signal without converting the biological sound signal into a digital signal and outputs the biological sound signal to an outside; and a digital system that converts the biological sound signal into the digital signal and outputs the biological sound signal.

公开(公告)号：US20220142604A1

公开(公告)日：2022-05-12

申请号：US17579619

申请日：2022-01-20

Applicant: FUJIFILM CORPORATION

Inventor： Tsutomu SASAKI

IPC: A61B7/04 ,  A61B5/282 ,  H04R1/46

Abstract: Provided is a stethoscope including: a support base having a first contact surface that comes into contact with an object to be measured, in which each of three first connection sides that are at least parts of sides defining the first contact surface is at least a part of each side of a triangle including the first contact surface; three elastic members having elasticity each of which has a second contact surface that has an obtuse angle formed with the first contact surface and that comes into contact with the object to be measured, the three elastic members being connected to each of the first connection sides in a second connection side having the same length as the first connection side out of sides defining the second contact surface; and three electrocardiographic electrodes that are disposed on each of the second contact surfaces and detect cardiac electrical activity of the object to be measured.

公开(公告)号：US20220142603A1

公开(公告)日：2022-05-12

申请号：US17579617

申请日：2022-01-20

Applicant: FUJIFILM CORPORATION

Inventor： Tsutomu SASAKI

IPC: A61B7/04

Abstract: Provided is a stethoscope including: a detection unit that detects a vibration caused by a sound which is generated from an object to be measured and that outputs a vibration signal on the basis of the vibration; an output unit that outputs a sound signal on the basis of the vibration signal; an output terminal from which the sound signal is output to an outside; and three electrocardiographic electrodes each of which is disposed around the detection unit and detects cardiac electrical activity of the object to be measured, in which the output terminal is disposed on an axis passing through a center of one predetermined electrocardiographic electrode out of the three electrocardiographic electrodes and a center of the detection unit.

公开(公告)号：US20180187074A1

公开(公告)日：2018-07-05

申请号：US15906781

申请日：2018-02-27

Applicant: FUJIFILM Corporation

Inventor： Tsutomu SASAKI

IPC: C09K11/56 ,  C09K11/06 ,  C09K11/70

CPC classification number: C09K11/565 ,  B82Y5/00 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y40/00 ,  C01B25/087 ,  C09K11/06 ,  C09K11/70 ,  Y10S977/774 ,  Y10S977/816 ,  Y10S977/818 ,  Y10S977/819 ,  Y10S977/824 ,  Y10S977/892 ,  Y10S977/95

Abstract: An object of the present invention is to provide a semiconductor nanoparticle having high emission efficiency and excellent durability; a method of producing the same; and a dispersion liquid and a film obtained by using a semiconductor nanoparticle. The semiconductor nanoparticle of the present invention is a semiconductor nanoparticle in which oxygen, zinc, and sulfur are detected by X-ray photoelectron spectroscopy analysis and a peak (ICH3) which is derived from a hydrocarbon group and present in a range of 2800 cm−1 to 3000 cm−1 and a peak (ICOO) which is derived from COO− and present in a range of 1400 cm−1 to 1600 cm−1 are detected by Fourier transform infrared spectroscopy analysis.