Inventor

Kunio Mitobe

Inventor

Yamagata, JP

Overview

16→

Patents

1992–2012

Patent span

Electricity

Primary field (CPC H)

Patents· 16 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 transducers76%

G10KSound-producing devices14%

B06BMethods or apparatus for generating or transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency, e.g. for performing mechanical work in general5%

Y10TTechnical subjects covered by former us classification5%

PatentTitleYear

8,135,160'Speaker device and mobile phone'2012 8,027,502'Speaker device and mobile phone'2011 8,027,503'Diaphragm for speaker device, speaker device and mobile phone'2011 7,433,486'Speaker and manufacturing method for the same'2008 7,103,195'Speaker unit'2006 6,944,310'Speaker apparatus'2005 6,754,362'Speaker and speaker system'2004 6,154,556'Dome speaker'2000 6,030,561'Methods for making a loudspeaker vibrating diaphragm'2000 5,892,185'Speaker unit and a method for manufacturing the same'1999 5,793,002'Loudspeaker vibrating diaphragm and methods for its production'1998 5,295,195'Magnetic circuit in a loudspeaker'1994 5,270,676'Method of making elements of a magnetic circuit in a loudspeaker'1993 5,157,731'Dome radiator speaker'1992 5,111,510'Speaker and manufacturing method therefor'1992 5,099,949'Speaker and manufacturing method therefor'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2006Patents assigned to PIONEER ELECTRONIC CORP (10)· patent assignee history

1992–2012Based in Yamagata, JP· patent location history

1994–2006Patents assigned to PIONEER ELECTRONIC TOHOKU (5)· patent assignee history

2004–2012Patents assigned to PIONEER CORP (5)· patent assignee history

2004–2011Patents assigned to PIONEER TOHOKU CORP (5)· patent assignee history

2012Patents assigned to FURUTO AKIHIKO (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
PIONEER ELECTRONIC CORP	10	1992–2006
PIONEER CORP	5	2004–2012
PIONEER ELECTRONIC TOHOKU	5	1994–2006
PIONEER TOHOKU CORP	5	2004–2011
FURUTO AKIHIKO	1	2012

Locations

Location	Patents	Span
Yamagata, JP	16	1992–2012