Inventor

Keiji Tsunoda

Inventor

Kokubunji, JP

Overview

43→

Patents

1991–2013

Patent span

Electricity

Primary field (CPC H)

Patents· 43 as inventor

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

H04Lprimary

H04LTransmission of digital information, e.g. telegraphic communication31%

H04WWireless communication networks28%

LOC1415%

H04QSelecting10%

H03MCoding8%

H04BTransmission5%

H04JMultiplex communication3%

PatentTitleYear

8,565,348'Radio transmitting apparatus'2013 7,962,154'Transmitting device for transmitting contents with copyright protection'2011 7,324,822'Wireless communication scheme with communication quality guarantee and copyright protection'2008 7,321,569'Radio communication system using point-to-point and point-to-multipoint user information communications'2008 7,269,148'Scheme for adaptive control of transport layer connection in communications via radio and wire networks'2007 7,184,778'Radio terminal and information reception control method suitable for push type information distribution system'2007 7,151,758'Router device, datagram transfer method and communication system realizing handoff control for mobile terminals'2006 7,024,204'Wireless communication scheme with communication quality guarantee and copyright protection'2006 6,965,580'Radio communication system using point-to-point and point-to-multipoint user information communications'2005 6,850,519'Communication node and packet transfer method'2005 6,807,427'Radio terminal and information reception control method suitable for push type information distribution system'2004 6,675,346'Code transmission scheme for communication system using error correcting codes'2004 6,516,435'Code transmission scheme for communication system using error correcting codes'2003 6,473,411'Router device, datagram transfer method and communication system realizing handoff control for mobile terminals'2002 6,418,128'Scheme for adaptive control of transport layer connection in communications via radio and wire networks'2002 D0459336'Combined radio receiver and digital audio disc player'2002 D0436596'Magnetic disc memory'2001 D0434749'Combined digital audio disc player, amplifier and tuner'2000 6,061,820'Scheme for error control on ATM adaptation layer in ATM networks'2000 D0408408'Digital audio disc player'1999 D0408407'Digital audio disc player'1999 D0391571'Optical disc player'1998 5,557,609'Switching apparatus for ATM'1996 5,541,926'ATM cell assembly and disassembly device with enhanced data handling flexibility'1996 D0367052'Combined audio mixer and tape recorder'1996 D0362666'Digital audio tape recorder'1995 D0340716'Digital audio disc player'1993 D0338671'Streaming cassette tape drive'1993 D0338520'Air cleaner'1993 D0337753'Synchronization controller for electric machines'1993 D0331574'Combined disk drive and streaming cassette tape drive'1992 D0325910'Combined audio mixer and tape recorder'1992 D0325737'Audio mixer'1992 D0325580'Audio mixer'1992 D0325383'Audio mixer'1992 D0325204'Combined audio mixer and tape recorder'1992 D0322964'Streaming cassette tape drive'1992 D0322779'Streaming cassette tape drive'1991 D0322600'Streaming cassette tape drive'1991 D0322431'Streaming cassette tape drive'1991 D0322247'Streaming cassette tape drive'1991 D0319236'Combined tape player and tuner'1991 D0318665'Combined tape player and tuner'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2002Patents assigned to TEAC CORP (24)· patent assignee history

1991–1993Based in Kokubunji, JP· patent location history

1995–2002Based in Musashino, JP· patent location history

1996–2013Patents assigned to TOSHIBA KK (18)· patent assignee history

1996–2008Based in Kanagawa, JP· patent location history

1996–2013Based in Yokohama, JP· patent location history

2001–2004Based in Tokyo, JP· patent location history

2013Patents assigned to FUJIKI HIROYUKI (1)· patent assignee history

2013Patents assigned to MAJIMA HIDEAKI (1)· patent assignee history

2013Patents assigned to TSUNODA KEIJI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
TEAC CORP	24	1991–2002
TOSHIBA KK	18	1996–2013
FUJIKI HIROYUKI	1	2013
MAJIMA HIDEAKI	1	2013
TSUNODA KEIJIself	1	2013

Locations

Location	Patents	Span
Kokubunji, JP	17	1991–1993
Kanagawa, JP	11	1996–2008
Musashino, JP	7	1995–2002
Yokohama, JP	5	1996–2013
Tokyo, JP	3	2001–2004