P

Inventor

KOYAMA HIROMICHI

JP13 patents
⚠️ This page may combine multiple inventors who share the name “KOYAMA HIROMICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

10 patents
US6333477B1Dec 25, 2001

Switch having improved contact performance

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations83
US7196282B2Mar 27, 2007

Movable contact unit arrangement including a movable contact unit and a magnetic sensor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations82
US6906275B2Jun 14, 2005

Movable contact unit, panel switch using the same and electronic equipment having the panel switch

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations73
US5845766ADec 8, 1998

Movable contact element for panel switch and method of manufacturing panel switch with movable contact element

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations73
US6634090B2Oct 21, 2003

Method of production of series of a tactile contact units and tactile contact unit, and series of tactile contact units and a tactile contact unit produced by using the same method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations72
US7350285B2Apr 1, 2008

Method of manufacturing a switch panel to be disposed close to a magnetic sensor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations71
US7178223B2Feb 20, 2007

Method of manufacturing a movable contact unit to be disposed close to a magnetic sensor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations71
US6608273B2Aug 19, 2003

Push switch

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations62
US7186939B2Mar 6, 2007

Movable contact unit and panel switch

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations61
US7329823B2Feb 12, 2008

Movable contact element and panel switch formed using the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations59

FUJITSU LTD

2 patents

SANYO ELECTRIC CO

1 patent