公开(公告)号：USD904614S1

公开(公告)日：2020-12-08

申请号：US29704002

申请日：2019-08-30

申请人： Nakanishi Inc.

设计人： Yamato Inoue

公开(公告)号：USD895801S1

公开(公告)日：2020-09-08

申请号：US29659063

申请日：2018-08-06

申请人： NAKANISHI INC.

设计人： Shinichi Tanaka

公开(公告)号：US10758318B2

公开(公告)日：2020-09-01

申请号：US15500310

申请日：2015-07-30

申请人： NAKANISHI INC.

发明人： Akito Nakamura

IPC分类号： A61C1/06 ,  A61C1/02 ,  H02K5/15 ,  H02K29/03 ,  H02K29/00 ,  A61C1/00 ,  A61C1/08 ,  H02K21/12 ,  H02K3/24 ,  H02K1/27 ,  H02K1/12 ,  H02K3/47

摘要： Provided are an electric motor that enables to achieve downsizing while securing performance, and a dental device that includes the electric motor. A brushless slotless electric motor 10 includes: a stator 3 that includes a stator core 301 and a plurality of coils 31 to 33, the plurality of coils 31 to 33 being disposed at an inside of the stator core 301; and a rotor 2 that includes a shaft 21 and a magnet 22, the rotor 2 being rotated around the shaft 21 with respect to the stator 3. The plurality of coils 31 to 33 are adjacent to each other in a rotation direction of the rotor 2 so as not to lap mutually. Lf

公开(公告)号：US10433931B2

公开(公告)日：2019-10-08

申请号：US14772612

申请日：2014-03-05

申请人： NAKANISHI INC.

发明人： Chihiro Yamane ,  Shouichi Takamori ,  Tetsuji Suzuki ,  Kiyoshi Kawakubo

IPC分类号： A61C3/00 ,  A61C3/025 ,  A61C17/02 ,  B05B1/26 ,  B24C5/04 ,  A61C1/08 ,  A61C17/022

摘要： A nozzle for a dental handpiece having a connector portion to be connected to a handpiece body, and a nozzle body, which is provided near its end with a notch of a substantially rectangular section cut out from the front face into the lateral faces, the notch forming upstream and downstream faces. The nozzle has a channel and an injection port thereof for transferring the mixture and a channel and an injection port thereof for transferring water, separate from each other. The channel for the mixture extends through the nozzle body along the front face from the connector portion to near the end, with the injection port for the mixture opened in the upstream face. With this nozzle, the mixture is properly injected onto a treatment site in subgingival treatment, while the mixture injected subgingivally is efficiently discharged supragingivally, to improve work efficiency in dental treatment.

公开(公告)号：US09827069B2

公开(公告)日：2017-11-28

申请号：US14361583

申请日：2013-01-11

申请人： NAKANISHI INC.

发明人： Makoto Kunisada

IPC分类号： A61C5/02 ,  A61C1/00 ,  A61C1/18 ,  A61C19/04 ,  A61C5/40

CPC分类号： A61C5/42 ,  A61C1/003 ,  A61C1/186 ,  A61C5/40 ,  A61C19/042 ,  F04C2270/0421

摘要： A dental handpiece control apparatus including: a relay 17 that switches a polarity of a voltage applied to a motor 20, and thereby switches a rotation direction of the motor 20 to forward rotation and backward rotation, the motor 20 being incorporated in the dental handpiece to rotate a cutting tool (a file) mounted to the dental handpiece; and a control section 11 that controls the switching of the voltage polarity by the relay 17 based on a rotation angle θF for forward rotation and a rotation angle θR for backward rotation of the motor 20, the rotation angle θF and the rotation angle θR being associated with state information of the file.

公开(公告)号：USD788311S1

公开(公告)日：2017-05-30

申请号：US29532265

申请日：2015-07-03

申请人： Toshinari Sanga

设计人： Toshinari Sanga

公开(公告)号：US09468503B2

公开(公告)日：2016-10-18

申请号：US14032583

申请日：2013-09-20

申请人： NAKANISHI INC.

发明人： Shinichiro Muto ,  Hayato Matsushita ,  Akito Nakamura

IPC分类号： A61C1/06 ,  H02K9/02 ,  H02K9/16 ,  A61C1/05

CPC分类号： A61C1/055 ,  A61C1/06 ,  H02K9/02 ,  H02K9/16

摘要： A drive motor of a dental handpiece for driving a cutting tool of the handpiece is provided that is connected to the dental handpiece on its front end side and includes a cylindrical casing; a rotor unit, which is rotatably supported inside the casing and outputs a driving force; a stator unit provided around the rotor unit inside the casing; and an air path which causes cooling air supplied from the rear end side of the drive motor to pass through an airtight cooling room circumferentially extending between the stator unit and the casing, and to be discharged from the rear end side.

摘要翻译： 提供用于驱动所述手持件的切割工具的牙齿手柄的驱动马达，所述驱动马达在其前端侧连接到所述牙齿手柄，并且包括圆筒形壳体; 转子单元，其被可旋转地支撑在壳体内并输出驱动力; 设置在所述壳体内的转子单元周围的定子单元; 以及从驱动马达的后端侧供给的冷却空气通过在定子单元与壳体之间周向延伸的气密性冷却室的空气路径，并从后端侧排出。

公开(公告)号：US20160015479A1

公开(公告)日：2016-01-21

申请号：US14772503

申请日：2014-03-05

申请人： NAKANISHI INC.

发明人： Chihiro YAMANE ,  Shouichi TAKAMORI ,  Tetsuji SUZUKI ,  Kiyoshi KAWAKUBO

IPC分类号： A61C3/025 ,  A61C1/14 ,  A61C1/00

CPC分类号： A61C3/025 ,  A61C1/0061 ,  A61C1/14 ,  A61C17/0202

摘要： The dental handpiece has a handpiece body having a mixture transfer line for transferring a mixture of air and powder, and a nozzle connected to the handpiece body for injecting the mixture transferred through the mixture transfer line, and performs dental treatment by injecting the mixture onto tooth surface. The nozzle is rotatably connected to the handpiece body via rotary means. With this nozzle connection, during subgingival treatment with the nozzle being inserted subgingivally at its end and moved along the tooth surface, the entire handpiece body is not required to be moved from side to side over a wide amplitude, which improves work efficiency in dental treatment.

摘要翻译： 牙科用手柄具有具有用于输送空气和粉末混合物的混合物输送管线的手持件主体和连接到手持件的喷嘴，用于注入通过混合物输送管线输送的混合物，并通过将混合物注入到牙齿上进行牙科治疗 表面。 喷嘴通过旋转装置可旋转地连接到机头本体。 通过这种喷嘴连接，在龈下治疗期间，喷嘴在其端部沿龈下插入并沿着牙齿表面移动，整个手持机体不需要在宽幅度上从一侧移动到另一侧，这提高了牙科治疗中的工作效率 。

公开(公告)号：US08882501B2

公开(公告)日：2014-11-11

申请号：US13898371

申请日：2013-05-20

申请人： Takao Kimura ,  Masanori Mizunuma ,  Keita Yokochi

发明人： Takao Kimura ,  Masanori Mizunuma ,  Keita Yokochi

IPC分类号： A61C17/00 ,  A61C17/02 ,  A61C1/00

CPC分类号： A61C17/0217 ,  A61C1/0061 ,  A61C17/0202

摘要： A dental handpiece where the chip air line is selectively switched to the ON-state for using both water and chip air, and to the OFF-state for using only water. The dental handpiece has a switching valve between the circumferential chip air channel and the chip air line in the handpiece body for selectively allowing and preventing communication. Opening the valve switches the communication to the ON-state in which chip air is allowed to pass from the circumferential chip air channel into the chip air line. Closing the valve switches the communication to an OFF-state in which chip air is prevented from passing from the circumferential chip air channel into the chip air line.

摘要翻译： 一种牙科手机，其中芯片空气线选择性地切换到使用水和芯片空气的ON状态，以及仅使用水的OFF状态。 牙齿手柄在圆周芯片空气通道和手机主体中的芯片空气线之间具有切换阀，用于选择性地允许和防止通信。 打开阀将通信切换到允许芯片空气从周向芯片空气通道进入芯片空气管线的ON状态。 关闭阀将通信切换到防止芯片空气从周向芯片空气通道进入芯片空气管线的关闭状态。

公开(公告)号：US20140087329A1

公开(公告)日：2014-03-27

申请号：US14032583

申请日：2013-09-20

申请人： NAKANISHI INC.

发明人： Shinichiro MUTO ,  Hayato MATSUSHITA ,  Akito NAKAMURA

IPC分类号： A61C1/05

CPC分类号： A61C1/055 ,  A61C1/06 ,  H02K9/02 ,  H02K9/16

摘要： A drive motor of a dental handpiece for driving a cutting tool of the handpiece is provided that is connected to the dental handpiece on its front end side and includes a cylindrical casing; a rotor unit, which is rotatably supported inside the casing and outputs a driving force; a stator unit provided around the rotor unit inside the casing; and an air path which causes cooling air supplied from the rear end side of the drive motor to pass through an airtight cooling room circumferentially extending between the stator unit and the casing, and to be discharged from the rear end side.

摘要翻译： 提供用于驱动所述手持件的切割工具的牙齿手柄的驱动马达，所述驱动马达在其前端侧连接到所述牙齿手柄，并且包括圆筒形壳体; 转子单元，其被可旋转地支撑在壳体内并输出驱动力; 设置在所述壳体内的转子单元周围的定子单元; 以及从驱动马达的后端侧供给的冷却空气通过在定子单元与壳体之间周向延伸的气密性冷却室的空气路径，并从后端侧排出。