P

Inventor

HAMAOKA KOJI

JP12 patents
⚠️ This page may combine multiple inventors who share the name “HAMAOKA KOJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MATSUSHITA REFRIGERATION

4 patents
US6704202B1Mar 9, 2004

Power controller and compressor for refrigeration system

MATSUSHITA REFRIGERATION90 citations97
US6184597B1Feb 6, 2001

Linear motor and linear compressor

MATSUSHITA REFRIGERATION51 citations92
US6239992B1May 29, 2001

Electric power unit with early auxiliary capacitor charging

MATSUSHITA REFRIGERATION12 citations73
US6157554ADec 5, 2000

Power unit

MATSUSHITA REFRIGERATION4 citations62

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

3 patents
US7102306B2Sep 5, 2006

Brushless DC motor driving method and apparatus for it

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD61 citations92
US7427841B2Sep 23, 2008

Driving method and driver of brushless DC motor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations81
US7233124B2Jun 19, 2007

Motor drive inverter control apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations81

SAMSUNG ELECTRONICS CO LTD

2 patents
US7235941B2Jun 26, 2007

Phase commutation method of brushless direct current motor

SAMSUNG ELECTRONICS CO LTD11 citations80
US9294022B2Mar 22, 2016

BLDC motor driving apparatus and refrigerator using the same

SAMSUNG ELECTRONICS CO LTD0 citations31

OH KWANG KYO

1 patent
US7190131B2Mar 13, 2007

Device and method for starting brushless direct current motor

OH KWANG KYO12 citations76

HAMAOKA KOJI

1 patent
US8226372B2Jul 24, 2012

Electric compressor

HAMAOKA KOJI5 citations55

DAIICHI SANKYO CO LTD

1 patent
US10189804B2Jan 29, 2019

Method for producing dicarboxylic acid compound

DAIICHI SANKYO CO LTD0 citations38