公开(公告)号：US12163655B2

公开(公告)日：2024-12-10

申请号：US18303720

申请日：2023-04-20

Applicant: MAKITA CORPORATION

Inventor： Akihiro Hozumi ,  Makoto Chikaraishi

IPC: F21V33/00 ,  B25F5/00 ,  B25F5/02 ,  F21V9/32 ,  F21V23/00 ,  B25B21/02 ,  F21Y103/33

Abstract: A power tool includes a motor, an output shaft, a chip-on-board light emitting diode, and a light cover. The output shaft is rotated by a rotational force of the motor. The chip-on-board light emitting diode is disposed around the output shaft. The chip-on-board light emitting diode includes: a substrate including a circular ring portion; and an LED chip disposed on a front surface of the circular ring portion. The light cover is fixed to the substrate. The light cover includes: an outer cylindrical portion disposed radially outside with respect to the circular ring portion; and a light transmission portion through which light emitted from the LED chip passes. An opening is provided in a lower portion of the outer cylindrical portion.

公开(公告)号：US20240110696A1

公开(公告)日：2024-04-04

申请号：US18541621

申请日：2023-12-15

Applicant: MAKITA CORPORATION

Inventor： Makoto CHIKARAISHI ,  Akihiro Hozumi ,  Kazunori Kinoshita

IPC: F21V33/00 ,  B25F5/02 ,  F21V29/10 ,  H01L33/64

CPC classification number: F21V33/0084 ,  B25F5/02 ,  F21V29/10 ,  H01L33/641 ,  F21Y2115/10

Abstract: A power tool includes: a motor; an output shaft that is rotated by a rotational force of the motor; a chip-on-board light emitting diode disposed around the output shaft; and a suppression device configured to suppress a temperature of the chip-on-board light emitting diode to a predetermined allowable value or less.

公开(公告)号：US11858082B2

公开(公告)日：2024-01-02

申请号：US17666210

申请日：2022-02-07

Applicant: MAKITA CORPORATION

Inventor： Hiroto Korekawa ,  Akihiro Hozumi ,  Toshiyuki Kani

IPC: B23Q17/24 ,  B23D45/04

CPC classification number: B23Q17/2404 ,  B23D45/048

Abstract: An illuminator that emits light from a radially outer portion of the cutting tool toward the cutting tool includes a first light source and a second light source, and a first lens and a second lens. The first lens has a first emission surface including a first outermost portion located farthest and at a first distance from a first center axis including a first light source center of the first light source and perpendicular to the first light source. The second lens has a second emission surface including a second outermost portion located farthest and at a second distance from a second center axis including a second light source center of the second light source and perpendicular to the second light source. A distance between the first center axis and the second center axis is shorter than a sum of the first distance and the second distance.

公开(公告)号：US11997958B2

公开(公告)日：2024-06-04

申请号：US17497601

申请日：2021-10-08

Applicant: MAKITA CORPORATION

Inventor： Akihiro Hozumi

IPC: A01G20/47 ,  A01D34/90 ,  A47L5/36 ,  F16M13/04 ,  H05K5/00 ,  H05K3/34

CPC classification number: A01G20/47 ,  A01D34/90 ,  A47L5/36 ,  F16M13/04 ,  H05K5/0034 ,  A01D2034/907 ,  H05K3/3447 ,  H05K2201/1056

Abstract: A job-site gear in one aspect of the present disclosure includes a circuit board, at least one electronic component, and a resin member. A first surface of the circuit board includes a first area, a second area, and a third area. The third area is located in a boundary between the first area and the second area. A second surface of the circuit board includes a fourth area, a fifth area, and a sixth area located behind the first area, the second area, and the third area, respectively. The third area and the sixth area include at least one slit penetrating through the circuit board. The resin member is integrally molded so as to (i) penetrate through the at least one slit and (ii) cover the first area, the fourth area, and a part of the at least one electronic component on the first area.

公开(公告)号：US20230366533A1

公开(公告)日：2023-11-16

申请号：US18193699

申请日：2023-03-31

Applicant: MAKITA CORPORATION

Inventor： Makoto Chikaraishi ,  Akihiro Hozumi ,  Kazunori Kinoshita

IPC: F21V33/00 ,  B25F5/02 ,  H01L33/64 ,  F21V29/10

CPC classification number: F21V33/0084 ,  B25F5/02 ,  F21V29/10 ,  H01L33/641 ,  F21W2131/10

Abstract: A power tool includes: a motor; an output shaft that is rotated by a rotational force of the motor; a chip-on-board light emitting diode disposed around the output shaft; and a suppression device configured to suppress a temperature of the chip-on-board light emitting diode to a predetermined allowable value or less.

公开(公告)号：US12025303B2

公开(公告)日：2024-07-02

申请号：US18541621

申请日：2023-12-15

Applicant: MAKITA CORPORATION

Inventor： Makoto Chikaraishi ,  Akihiro Hozumi ,  Kazunori Kinoshita

IPC: F21V33/00 ,  B25F5/02 ,  F21V29/10 ,  F21W131/10 ,  F21Y115/10 ,  H01L33/64

CPC classification number: F21V33/0084 ,  B25F5/02 ,  F21V29/10 ,  H01L33/641 ,  F21W2131/10 ,  F21Y2115/10

Abstract: A power tool includes: a motor; an output shaft that is rotated by a rotational force of the motor; a chip-on-board light emitting diode disposed around the output shaft; and a suppression device configured to suppress a temperature of the chip-on-board light emitting diode to a predetermined allowable value or less.

公开(公告)号：US11913633B2

公开(公告)日：2024-02-27

申请号：US18193699

申请日：2023-03-31

Applicant: MAKITA CORPORATION

Inventor： Makoto Chikaraishi ,  Akihiro Hozumi ,  Kazunori Kinoshita

IPC: F21V33/00 ,  B25F5/02 ,  F21V29/10 ,  H01L33/64 ,  F21Y115/10 ,  F21W131/10

CPC classification number: F21V33/0084 ,  B25F5/02 ,  F21V29/10 ,  H01L33/641 ,  F21W2131/10 ,  F21Y2115/10

Abstract: A power tool includes: a motor; an output shaft that is rotated by a rotational force of the motor; a chip-on-board light emitting diode disposed around the output shaft; and a suppression device configured to suppress a temperature of the chip-on-board light emitting diode to a predetermined allowable value or less.

公开(公告)号：US12196408B2

公开(公告)日：2025-01-14

申请号：US18435320

申请日：2024-02-07

Applicant: MAKITA CORPORATION

Inventor： Makoto Chikaraishi ,  Akihiro Hozumi ,  Yutaka Ogiso

IPC: F21V33/00 ,  B25B21/02 ,  B25B23/18 ,  B25F5/00 ,  H05B47/105 ,  H05B47/155

Abstract: A power tool includes a motor, an output shaft, a chip-on-board light emitting diode, and a light cover. The output shaft is rotated by a rotational force of the motor. The chip-on-board light emitting diode is disposed around the output shaft. The chip-on-board light emitting diode includes: a substrate having a circular ring portion; and an LED chip disposed on a front surface of the circular ring portion. The light cover is fixed to the substrate. The light cover includes: an inner cylindrical portion disposed radially inside with respect to the circular ring portion; and a light transmission portion through which light emitted from the LED chip passes. The inner cylindrical portion includes a cover slope that totally reflects light from the LED chip forward.

公开(公告)号：US11940143B2

公开(公告)日：2024-03-26

申请号：US18295868

申请日：2023-04-05

Applicant: MAKITA CORPORATION

Inventor： Makoto Chikaraishi ,  Akihiro Hozumi ,  Yutaka Ogiso

IPC: F21V33/00 ,  B25B21/02 ,  B25B23/18 ,  B25F5/00 ,  H05B47/105 ,  H05B47/155

CPC classification number: F21V33/0084 ,  B25B21/02 ,  B25B23/18 ,  B25F5/001 ,  H05B47/105 ,  H05B47/155

Abstract: A power tool includes a motor, an output shaft, a chip-on-board light emitting diode, and a light cover. The output shaft is rotated by a rotational force of the motor. The chip-on-board light emitting diode is disposed around the output shaft. The chip-on-board light emitting diode includes: a substrate having a circular ring portion; and an LED chip disposed on a front surface of the circular ring portion. The light cover is fixed to the substrate. The light cover includes: an inner cylindrical portion disposed radially inside with respect to the circular ring portion; and a light transmission portion through which light emitted from the LED chip passes. The inner cylindrical portion includes a cover slope that totally reflects light from the LED chip forward.

公开(公告)号：US11890731B2

公开(公告)日：2024-02-06

申请号：US17663697

申请日：2022-05-17

Applicant: MAKITA CORPORATION

Inventor： Akihiro Hozumi

IPC: F21V33/00 ,  B25B23/18 ,  F21V19/00 ,  F21V5/04 ,  B25B21/02 ,  F21Y105/18 ,  F21Y115/10

CPC classification number: B25B23/18 ,  F21V5/04 ,  F21V19/003 ,  B25B21/02 ,  F21Y2105/18 ,  F21Y2115/10

Abstract: A power tool includes a motor; an output part configured to be rotated around a rotational axis in response to energization of the motor; a plurality of lights disposed spaced apart around the output part; and an optical member having a refractive surface that refracts illumination light emitted from a light-emitting surface of one of the lights such that the main illumination direction extends at an angle away from the rotational axis.