公开(公告)号：US20240390119A1

公开(公告)日：2024-11-28

申请号：US18671480

申请日：2024-05-22

Applicant: J. MORITA MFG. CORP.

Inventor： Tsuyoshi TANAKA

IPC: A61C9/00 ,  A61B1/00 ,  A61B1/24 ,  G02B26/08 ,  G02B26/10 ,  H04N23/959

Abstract: A three-dimensional scanner includes a lens, imaging circuitry that obtains an image of an object located at a focal position of the lens, a lens driver that drives the lens to make reciprocating motion in a linear direction, obtaining circuitry that obtains geometrical data representing a surface geometry based on an image taken by the imaging circuitry, and lens controller circuitry that controls the lens driver to change an amplitude of reciprocating motion of the lens based on the geometrical data obtained by the obtaining circuitry.

公开(公告)号：US20240390118A1

公开(公告)日：2024-11-28

申请号：US18667559

申请日：2024-05-17

Applicant: J. MORITA MFG. CORP.

Inventor： Tsuyoshi TANAKA ,  Takuya OKADA ,  Takeshi HAYASHI

IPC: A61C9/00

Abstract: A three-dimensional scanner includes imaging circuitry configured to take an image of an object located at a focal position of a lens, a lens driver configured to drive the lens to make reciprocating motion in a linear direction, an angle detector configured to detect variation in angle of inclination of the lens with respect to a prescribed direction, and processing circuitry configured to control an operation of the lens in accordance with the variation in angle of inclination detected by the angle detector.

公开(公告)号：US20240356422A1

公开(公告)日：2024-10-24

申请号：US18643673

申请日：2024-04-23

Applicant: J. MORITA MFG. CORP.

Inventor： Tsuyoshi TANAKA

IPC: H02K41/03 ,  H02K1/12

CPC classification number: H02K41/031 ,  H02K1/12

Abstract: A linear motor includes: a movable element including a permanent magnet; a stator including a coil positioned to face the permanent magnet; and a linear guide configured to guide the movable element to move linearly. A support portion provided on the linear guide and a holding portion provided on the movable element to correspond to the support portion are fitted and thereby the movable element is attached to the linear guide. The coil includes a yoke having a plate shape and a winding wire wound around the yoke. The winding wire is continuously wound around the yoke to include a first region where the winding wire is wound around the yoke in a first winding direction and a second region where the winding wire is wound around the yoke in a second winding direction opposite to the first winding direction.

公开(公告)号：US20230200681A1

公开(公告)日：2023-06-29

申请号：US18061038

申请日：2022-12-02

Applicant: J. MORITA MFG. CORP.

Inventor： Tsuyoshi TANAKA ,  Keisuke SORIMOTO

IPC: A61B5/107 ,  A61B5/00 ,  G01B11/25 ,  G02B3/14

CPC classification number: A61B5/1079 ,  A61B5/0088 ,  A61B5/1077 ,  G01B11/25 ,  G02B3/14 ,  G02B2207/117

Abstract: The present disclosure provides a three-dimensional scanner for acquiring three-dimensional shape information of an object using focusing, including a light source configured to emit light from an emission end face of a housing to the object; a sensor configured to detect light from the light source reflected by the object; a variable focus lens that is provided between the object and the sensor and that changes a focal position based on the object; and a controller configured to change the focal position of the variable focus lens in a process of acquiring the three-dimensional shape information of the object, wherein the controller is configured to change an amount of light from the light source reflected by the object and reaching the sensor based on the focal position of the variable focus lens.

公开(公告)号：US20240349998A1

公开(公告)日：2024-10-24

申请号：US18643564

申请日：2024-04-23

Applicant: J. MORITA MFG. CORP.

Inventor： Tsuyoshi TANAKA

IPC: A61B1/24 ,  A61B1/00

CPC classification number: A61B1/24 ,  A61B1/00045 ,  A61B1/00154 ,  A61B1/00158

Abstract: The present disclosure provides a linear motor that undergoes no deterioration of the measurement accuracy or the driving accuracy depending on a driving situation, and a medical care apparatus including the linear motor. The linear motor of the present disclosure is a linear motor that moves linearly, the linear motor including: a movable element including a permanent magnet; a stator including a coil positioned to face the permanent magnet; and two parallel linear guides configured to guide the movable element to move linearly. Support portions provided on the linear guides, respectively, and holding portions provided on the movable element to correspond to the support portions are fitted with play and thereby the movable element is attached to the linear guides. A position where the permanent magnet is attached to the movable element is asymmetrical with respect to each of the holding portions.

公开(公告)号：US20180325425A1

公开(公告)日：2018-11-15

申请号：US16020087

申请日：2018-06-27

Applicant: J. MORITA MFG. CORP.

Inventor： Keisuke SORIMOTO ,  Mikinori NISHIMURA ,  Tsuyoshi TANAKA ,  Masayuki SANO ,  Keiichi TSUDA ,  Ryosuke KAJI

IPC: A61B5/107 ,  A61C19/04 ,  A61B1/00 ,  A61B1/24 ,  A61B5/00 ,  G01B11/25 ,  G06T7/521 ,  A61C9/00

CPC classification number: A61B5/1077 ,  A61B1/00009 ,  A61B1/0005 ,  A61B1/24 ,  A61B5/0088 ,  A61B5/1079 ,  A61B5/4547 ,  A61C9/0053 ,  A61C19/04 ,  G01B11/25 ,  G01B11/2518 ,  G01B2210/52 ,  G06T7/521 ,  G06T2200/32 ,  G06T2207/20016 ,  G06T2207/20221 ,  G06T2207/30036

Abstract: An intraoral three-dimensional measuring method, comprising: acquiring, with a handy scanner, wide range three-dimensional measurement information on a three-dimensional shape measured on a wide range in a desirable measurement range in an intraoral space; acquiring, with the handy scanner, a plurality of pieces of narrow range three-dimensional measurement information each on a three-dimensional shape measured on a narrow range narrower than the wide range in the measurement range; and locating, with a controller, the plurality of pieces of narrow range three-dimensional measurement information based on the wide range three-dimensional measurement information by use of, as a synthesis reference, intra-measurement range position information common to the wide range three-dimensional measurement information and each of the plurality of pieces of narrow range three-dimensional measurement information, and creating synthetic three-dimensional information on the measurement range.