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Inventor

Tatsuo Nakagawa

Inventor
Tokyo, JP

Overview

27→
Patents
1995–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 27 as inventor

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

H04Bprimary
H04BTransmission12%
H04LTransmission of digital information, e.g. telegraphic communication12%
G01SRadio direction-finding10%
G01NInvestigating or analysing materials by determining their chemical or physical properties9%
A61BDiagnosis7%
H04JMultiplex communication7%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems5%
H04QSelecting5%
G01FMeasuring volume, volume flow, mass flow or liquid level3%
G01RMeasuring electric variables3%
PatentTitleYear
10,856,845Ultrasound probe and ultrasound diagnosis device using the same202010,613,206Ultrasound probe and ultrasound imaging apparatus using the same202010,514,386Sample liquid-surface position measurement device and sample liquid-surface position measurement method201910,389,340Delay circuit, electronic circuit using delay circuit and ultrasonic imaging device20199,973,074Semiconductor integrated circuit device20189,880,082'Detection device that calculates a center of gravity of a container gap region'20189,728,060'Monitoring system'20179,725,753'Biomolecule information analysis device'20179,709,497'Transient absorption measurement method and transient absorption measurement apparatus'20179,658,631'Semiconductor integrated circuit device, power supply device, and method of controlling power supply device'20179,572,491'Vital signal measurement device, and vital sign signal measurement system'20179,194,944'Measurement device'20159,166,474'Power supply device with switching control device controlling switching based on pulse control signal'20158,792,946'Electronic circuit and radio communications system'20148,326,243'Electronic circuit and radio communications system'20128,265,122'Receiver'20128,248,596'Cryostat'20128,073,465'Reciever, frequency deviation measuring unit and positioning and ranging system'20117,881,684'Receiver, frequency deviation measuring unit and positioning and ranging system'20117,830,953'Receiving apparatus, communication apparatus and control apparatus using the same'20107,664,163'Receiver'20106,563,791'Traffic shaping method and apparatus'20036,144,635'Asynchronous transfer mode exchange system'20005,774,453'Input/output buffer type ATM switch'19985,663,959'ATM cell switching apparatus having a control cell bypass route'19975,421,025'Cell processing system having first and second processing units capable of outputting first and second processed signals at the same time'19955,412,655'Multiprocessing system for assembly/disassembly of asynchronous transfer mode cells'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–2003Patents assigned to NEC CORP (5)· patent assignee history
1995–2020Based in Tokyo, JP· patent location history
2010–2018Patents assigned to RENESAS ELECTRONICS CORP (4)· patent assignee history
2010–2012Based in Hachioji, JP· patent location history
2011–2020Patents assigned to HITACHI LTD (12)· patent assignee history
2011–2017Patents assigned to NAKAGAWA TATSUO (9)· patent assignee history
2011–2014Patents assigned to MIYAZAKI MASAYUKI (4)· patent assignee history
2012–2014Based in Kokubunji, JP· patent location history
2015Based in Kodaira, JP· patent location history
2017Based in Hirakata, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD122011–2020
NAKAGAWA TATSUOself92011–2017
NEC CORP51995–2003
MIYAZAKI MASAYUKI42011–2014
RENESAS ELECTRONICS CORP42010–2018
Locations
LocationPatentsSpan
Tokyo, JP161995–2020
Hachioji, JP52010–2012
Kodaira, JP22015
Kokubunji, JP22012–2014
Hirakata, JP12017