Inventor

Shigeyuki Sudo

Inventor

Yokohama, JP

Overview

19→

Patents

1993–2013

Patent span

Electricity

Primary field (CPC H)

Patents· 19 as inventor

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

H04Wprimary

H04WWireless communication networks30%

Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use26%

H04BTransmission21%

H04LTransmission of digital information, e.g. telegraphic communication7%

H04MTelephonic communication7%

H03DDemodulation or transference of modulation from one carrier to another5%

H03JTuning resonant circuits2%

H04NPictorial communication, e.g. television2%

PatentTitleYear

8,477,722'Handoff control method and a mobile station employing the same'2013 8,130,816'Receiver for receiving a spectrum dispersion signal'2012 7,953,406'Access point'2011 7,865,195'Mobile communication terminal and position monitoring method'2011 7,606,198'Handoff control method and a mobile station employing the same'2009 7,471,715'Receiver for receiving a spectrum dispersion signal'2008 7,447,256'Receiver for receiving a spectrum dispersion signal'2008 7,400,667'Receiver for receiving a spectrum dispersion signal'2008 7,397,777'Handoff control method and a mobile station employing the same'2008 7,269,203'Receiver for receiving a spectrum dispersion signal'2007 7,035,309'Receiver for receiving a spectrum dispersion signal'2006 6,625,202'Mobile station for spread spectrum communication'2003 6,363,101'Receiver for receiving a spectrum dispersion signal'2002 5,778,314'Speech message recording and reproducing method and apparatus'1998 5,696,792'Digital radiocommunication terminal'1997 5,493,710'Communication system having oscillation frequency calibrating function'1996 5,450,613'Mobile communications equipment which detects and notifies when it is moved into or out of a service area'1995 5,361,047'PI/4 shift QPSK modulator and communication apparatus used therewith'1994 5,210,775'.pi./4 shift QPSK modulator and communication apparatus'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–2011Patents assigned to HITACHI LTD (16)· patent assignee history

1993Based in Kanagawa, JP· patent location history

1994–1998Based in Fujisawa, JP· patent location history

2002–2013Based in Yokohama, JP· patent location history

2011Patents assigned to CASIO HITACHI MOBILE COMM CO (1)· patent assignee history

2012–2013Patents assigned to SAMSUNG ELECTRONICS CO LTD (2)· patent assignee history

2012–2013Patents assigned to SUDO SHIGEYUKI (2)· patent assignee history

2013Patents assigned to ASADA YUKINORI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	16	1993–2011
SAMSUNG ELECTRONICS CO LTD	2	2012–2013
SUDO SHIGEYUKIself	2	2012–2013
ASADA YUKINORI	1	2013
CASIO HITACHI MOBILE COMM CO	1	2011

Locations

Location	Patents	Span
Yokohama, JP	13	2002–2013
Fujisawa, JP	5	1994–1998
Kanagawa, JP	1	1993