Inventor

Keiji Ishikawa

Inventor

Matsusaka, JP

Overview

12→

Patents

1994–2017

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 12 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H04Rprimary

H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers22%

LOC1417%

F16DCouplings for transmitting rotation11%

F16HGearing11%

A47LDomestic washing or cleaning6%

B23CMilling6%

F16KValves6%

F21SNon-portable lighting devices6%

F21VFunctional features or details of lighting devices or systems thereof6%

F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted6%

PatentTitleYear

9,835,205Friction clutch2017 9,674,595'Speaker and manufacturing method thereof'2017 9,008,350'Loudspeaker, electronic device and mobile device both including the same, and method of producing the same'2015 8,231,737'Dish washer/dryer'2012 7,993,227'Hub for power transmission apparatus'2011 7,909,701'Power transmission apparatus'2011 7,123,738'Loudspeaker'2006 D0524299'Speaker for an automobile'2006 D0523849'Speaker for an automobile'2006 D0523422'Speaker for an automobile'2006 7,020,301'Loudspeaker'2006 5,322,394'Highly stiff end mill'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2006Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (4)· patent assignee history

2006Patents assigned to FURUKAWA ELECTRIC CO LTD (1)· patent assignee history

2006Based in Matsusaka, JP· patent location history

2006–2017Based in Mie, JP· patent location history

2011–2017Patents assigned to DENSO CORP (3)· patent assignee history

2011Based in Okazaki, JP· patent location history

2012–2015Patents assigned to PANASONIC CORP (2)· patent assignee history

2012Based in Hyogo, JP· patent location history

2015–2017Patents assigned to PANASONIC IP MAN CO LTD (2)· patent assignee history

2017Based in Kariya, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD	4	2006
DENSO CORP	3	2011–2017
PANASONIC CORP	2	2012–2015
PANASONIC IP MAN CO LTD	2	2015–2017
FURUKAWA ELECTRIC CO LTD	1	2006

Locations

Location	Patents	Span
Matsusaka, JP	4	2006
Mie, JP	3	2006–2017
Okazaki, JP	2	2011
Kariya, JP	1	2017
Hyogo, JP	1	2012