P

Inventor

ISHIKAWA KEIJI

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

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

4 patents
US7020301B2Mar 28, 2006

Loudspeaker

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations82
USD523422SJun 20, 2006

Speaker for an automobile

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations80
USD524299SJul 4, 2006

Speaker for an automobile

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations70
USD523849SJun 27, 2006

Speaker for an automobile

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations70

DENSO CORP

3 patents
US7909701B2Mar 22, 2011

Power transmission apparatus

DENSO CORP11 citations84
US9835205B2Dec 5, 2017

Friction clutch

DENSO CORP0 citations41
US7993227B2Aug 9, 2011

Hub for power transmission apparatus

DENSO CORP0 citations41

FURUKAWA ELECTRIC CO LTD

1 patent
US7123738B1Oct 17, 2006

Loudspeaker

FURUKAWA ELECTRIC CO LTD41 citations89

HITACHI TOOL ENG

1 patent
US5322394AJun 21, 1994

Highly stiff end mill

HITACHI TOOL ENG43 citations89

IWANAGA SHIGERU

1 patent
US8231737B2Jul 31, 2012

Dish washer/dryer

IWANAGA SHIGERU3 citations51

PANASONIC IP MAN CO LTD

1 patent
US9674595B2Jun 6, 2017

Speaker and manufacturing method thereof

PANASONIC IP MAN CO LTD1 citations45

PANASONIC CORP

1 patent
US9008350B2Apr 14, 2015

Loudspeaker, electronic device and mobile device both including the same, and method of producing the same

PANASONIC CORP0 citations45