公开(公告)号：US12082983B2

公开(公告)日：2024-09-10

申请号：US17094309

申请日：2020-11-10

Applicant: J. MORITA MFG. CORP.

Inventor： Kyohei Kato ,  Kazunari Matoba

IPC: A61C1/00

CPC classification number: A61C1/003 ,  A61C1/0053

Abstract: A dental treatment apparatus includes: a handpiece including a head that holds a cutting tool; a drive unit capable of performing forward rotation driving for rotating the cutting tool held at the head in a cutting direction, and reverse rotation driving for rotating the cutting tool held at the head in a non-cutting direction; an operation receiving unit that receives an operation of an operator; and a controller that controls the drive unit that drives the cutting tool, according to the operation received by the operation receiving unit. Only when a prescribed condition is satisfied, the controller sets the operation received by the operation receiving unit as an operation to drive the cutting tool by reverse rotation driving, or as an operation to drive the cutting tool by twist driving by which the forward rotation driving and the reverse rotation driving are alternately performed.

公开(公告)号：US20240161300A1

公开(公告)日：2024-05-16

申请号：US18483552

申请日：2023-10-10

Applicant: J. MORITA MFG. CORP.

Inventor： Ryosuke KAJI ,  Mikinori NISHIMURA

IPC: G06T7/00 ,  A61B5/00 ,  G06T7/12 ,  G06T7/55 ,  G06T7/90 ,  G06T11/00 ,  G06T15/00

CPC classification number: G06T7/0016 ,  A61B5/0066 ,  A61B5/0071 ,  A61B5/0088 ,  G06T7/12 ,  G06T7/55 ,  G06T7/90 ,  G06T11/005 ,  G06T15/00 ,  G06T2200/04 ,  G06T2207/10024 ,  G06T2207/10101 ,  G06T2207/30036 ,  G06T2210/41 ,  G06T2211/456

Abstract: A data processing apparatus includes input interface circuitry to which first three-dimensional data and second three-dimensional data indicating objects acquired at timings different from each other for a same person are input, and processing circuitry configured to compare pieces of soft tissue of at least one tooth between the first three-dimensional data and the second three-dimensional data using a shape of a crown portion of the at least one tooth included in the objects as a reference and output comparison information regarding a comparison result.

公开(公告)号：US20230414319A1

公开(公告)日：2023-12-28

申请号：US18337925

申请日：2023-06-20

Applicant: J. MORITA MFG. CORP.

Inventor： Hitoshi TANAKA

IPC: A61C1/14

CPC classification number: A61C1/145

Abstract: A dental handpiece includes a main body portion, a holding portion, and a releasing mechanism. The releasing mechanism includes a cap, a cap ring, and a push cap. The cap includes an outer annular portion and an inner annular portion provided with at least one window portion. The push cap is configured to be movable to a releasing position between the outer annular portion and the inner annular portion in a direction in which the push cap is put on the cap ring, the releasing position being a position at which the holding portion is released. The cap ring includes at least one claw portion anchored to the at least one window portion from the inner side. The at least one claw portion is disposed on the inner side with respect to the inner annular portion.

公开(公告)号：US11801118B2

公开(公告)日：2023-10-31

申请号：US16604342

申请日：2018-08-09

Applicant: J. MORITA MFG. CORP.

Inventor： Kyohei Kato ,  Naoki Katsuda ,  Kazunari Matoba

IPC: A61C5/42 ,  A61C1/00 ,  A61C1/06

CPC classification number: A61C5/42 ,  A61C1/003 ,  A61C1/0023 ,  A61C1/06

Abstract: A dental treatment apparatus includes a handpiece holding a cutting tool in its head, a drive portion driving the cutting tool held by the head, and a control portion controlling the drive portion in accordance with a drive sequence. The drive sequence includes at least one forward rotation drive for rotating the cutting tool in a cutting direction to cut a treatment portion and at least one reverse rotation drive for rotating the cutting tool in a non-cutting direction. Under the control of the drive portion in accordance with the drive sequence, a cumulative amount of rotation which is an accumulation of an amount of rotation in forward rotation drive and an amount of rotation in reverse rotation drive does not exceed a set value at any time point.

公开(公告)号：US20230301757A1

公开(公告)日：2023-09-28

申请号：US18189978

申请日：2023-03-24

Applicant: J. MORITA MFG. CORP.

Inventor： Ryosuke KAJI ,  Mikinori NISHIMURA

IPC: A61C9/00 ,  A61C19/04 ,  G06T7/70

CPC classification number: A61C9/0053 ,  A61C19/04 ,  G06T7/70 ,  G06T2207/30036 ,  G06T2207/20081

Abstract: An identification apparatus includes an input interface to which position data including position information of each of a plurality of objects is input, and processing circuitry that is configured to identify at least one object among the plurality of objects based on the position data that is input from the input interface and an estimation model that is trained to estimate a type of each of the plurality of objects based at least on the position data of each of the plurality of objects, the position data including a relative positional relationship which is fixed inside the mouth.

公开(公告)号：US20230280480A1

公开(公告)日：2023-09-07

申请号：US18178155

申请日：2023-03-03

Applicant: J. MORITA MFG. CORP.

Inventor： Yusuke FUJII

IPC: G01T1/20 ,  G01T1/166

CPC classification number: G01T1/2014 ,  G01T1/1663 ,  G01T1/248

Abstract: A radiation image scanner that reads a radiation image from an imaging plate, the radiation image scanner including: a stage that holds the imaging plate; an excitation light source that irradiates the imaging plate held by the stage with excitation light; and a photodetector that detects light emitted from the imaging plate by the excitation light, in which the stage includes: a stage body that includes a supporting surface capable of being brought into surface contact with a back surface of the imaging plate; and a positioning mechanism that includes a positioning surface being in contact with an edge portion of the imaging plate supported on the supporting surface and positioning the edge portion from outside along the supporting surface while pressing the edge portion against the supporting surface.

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：US20230135700A1

公开(公告)日：2023-05-04

申请号：US17979041

申请日：2022-11-02

Applicant: J. MORITA MFG. CORP.

Inventor： Ryosuke KAJI ,  Mikinori NISHIMURA

IPC: A61C9/00 ,  A61C13/00

Abstract: A technique that allows a dentist to accurately grasp movement of individual teeth tooth. A data processing device processes three-dimensional data of teeth. The data processing device includes an input unit to which the three-dimensional data including a bone of a part of a head and a plurality of teeth captured by an X-ray CT imaging device is input, a data processor that performs data processing based on the three-dimensional data input to the input unit, and an output unit that outputs the three-dimensional data processed by the data processor to an external device. The three-dimensional data further includes position information and is segmented into the bone of the part of the head and the plurality of teeth. The data processor compares the three-dimensional data captured at different timings based on a reference provided on at least the bone of the part of the head.

公开(公告)号：US20220361981A1

公开(公告)日：2022-11-17

申请号：US17765713

申请日：2020-08-21

Applicant: J. MORITA MFG. CORP.

Inventor： Hitoshi TANAKA ,  Tomoya MURATA ,  Shozo NAKAYAMA

IPC: A61C1/18 ,  A61C1/12

Abstract: Provided is a dental handpiece capable of rotating a cutting tool at a high speed as compared with a conventional dental handpiece. A dental handpiece including coupling portion, a body, and a neck to be held by a used and a head connected to them, wherein the head includes a tool rotating mechanism that holds a cutting tool for treating a region to be treated, rotates based on rotation of a drive unit that is rotationally driven, and rotates the cutting tool, and the tool rotating mechanism has a rotation speed of at least 5.5 times or more a rotation speed of the drive unit.

公开(公告)号：US20220160465A1

公开(公告)日：2022-05-26

申请号：US17535177

申请日：2021-11-24

Applicant: J. MORITA MFG. CORP.

Inventor： Tomoaki UEDA ,  Koichiro ADACHI ,  Kyohei KATO ,  Seiichiro YAMASHITA ,  Kazunari MATOBA

IPC: A61C5/40

Abstract: A dental treatment apparatus includes a holder, a high-frequency signal generation circuit, a detector, and a control circuit. The holder holds an electrode placed at a dental treatment site. A power supply energizes the electrode with a high-frequency current. A detector detects a current value which energizes the electrode. A control circuit causes, based on the current value detected by detector, the power supply to control a current value of the high-frequency current which energizes the electrode.