Inventor
YAMAMOTO RITSU
JP15 patents
⚠️ This page may combine multiple inventors who share the name “YAMAMOTO RITSU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC WORKS LTD
5 patentsUS5892194AApr 6, 1999
Sealed contact device with contact gap adjustment capability
MATSUSHITA ELECTRIC WORKS LTD184 citations98
US6911884B2Jun 28, 2005
Electromagnetic switching apparatus
MATSUSHITA ELECTRIC WORKS LTD104 citations97
US6700466B1Mar 2, 2004
Contactor
MATSUSHITA ELECTRIC WORKS LTD136 citations96
US6075429AJun 13, 2000
Single pole relay switch
MATSUSHITA ELECTRIC WORKS LTD56 citations92
US7046107B2May 16, 2006
Contact device
MATSUSHITA ELECTRIC WORKS LTD10 citations73
PANASONIC IP MAN CO LTD
4 patentsUS9269507B2Feb 23, 2016
Spring load adjustment structure of contact device and spring load adjustment method of contact device
PANASONIC IP MAN CO LTD23 citations88
US9640354B2May 2, 2017
Contact device
PANASONIC IP MAN CO LTD3 citations72
US9640355B2May 2, 2017
Contact apparatus
PANASONIC IP MAN CO LTD3 citations70
US9443685B2Sep 13, 2016
Contact device
PANASONIC IP MAN CO LTD2 citations62