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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11777377 B1

PDFFull Text
Date of Patent:
Oct. 03, 2023

Filed:

Nov. 25, 2019

Electric working machine with semiconductor element that completes or interrupts current path to motor

Applicant:

Makita Corporation, Anjo, JP;

Inventor:

Akihiro Nakamoto, Anjo, JP;

Assignee:

MAKITA CORPORATION, Anjo, JP;

Attorney:

Oliff PLC

Primary Examiner:

Amir A Jalali

Int. Cl.
CPC ...
H02K 11/33 (2016.01); H01L 25/07 (2006.01); H05K 1/18 (2006.01); H02K 11/00 (2016.01); H02K 11/25 (2016.01); A01D 34/78 (2006.01); A01D 34/68 (2006.01); H01L 23/40 (2006.01); H02K 9/22 (2006.01); A01D 101/00 (2006.01); H01R 12/58 (2011.01);
U.S. Cl.
CPC ...
H02K 11/33 (2016.01); A01D 34/6806 (2013.01); A01D 34/78 (2013.01); H01L 23/4006 (2013.01); H01L 25/072 (2013.01); H02K 9/223 (2021.01); H02K 11/0094 (2013.01); H02K 11/25 (2016.01); H05K 1/18 (2013.01); A01D 2101/00 (2013.01); H01L 2023/4031 (2013.01); H01L 2023/4062 (2013.01); H01L 2023/4087 (2013.01); H01R 12/58 (2013.01); H02K 2211/03 (2013.01); H05K 2201/066 (2013.01); H05K 2201/10151 (2013.01); H05K 2201/10166 (2013.01);
Abstract

An electric working machine includes: a motor; a semiconductor element that is provided in a current path to the motor and completes or interrupts the current path; a circuit board on which the semiconductor element is mounted, a control circuit that turns on and off the semiconductor element to control energization to the motor being assembled to the circuit board; and a heat sink for dissipating heat from the semiconductor element. The semiconductor element is attached to the heat sink via a metal-based board.

Find Patent Forward Citations

Nakamoto, Akihiro. (2023). Electric working machine with semiconductor element that completes or interrupts current path to motor (U.S. Patent No. 11777377). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11777377

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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