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Inventor

Toru Kosugi

Inventor
Ohmiya, JP

Overview

7→
Patents
1988–2001
Patent span
Electricity
Primary field (CPC H)

Patents· 7 as inventor

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

H04Jprimary
H04JMultiplex communication42%
H04LTransmission of digital information, e.g. telegraphic communication33%
H04MTelephonic communication8%
H04QSelecting8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
PatentTitleYear
6,226,270'Method and apparatus for path trace check'20015,706,280'Transmission quality monitoring system for a digital communication network'19985,189,410'Digital cross connect system'19935,119,380'Zero string error detection circuit'19924,887,083'Bipolar with eight-zeros substitution and bipolar with six-zeros substitution coding circuit'19894,841,524'Digital data multiple conversion system for converting data having a frequency to data having another frequency by a digital stuffing method'19894,740,959'System for controlling a change of sequence order of channel data'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–2001Patents assigned to FUJITSU LTD (7)· patent assignee history
1988Based in Tochigi, JP· patent location history
1989–1993Based in Ohmiya, JP· patent location history
1989–1992Based in Omiya, JP· patent location history
1998Based in Oyama, JP· patent location history
2001Based in Yokohama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FUJITSU LTD71988–2001
Locations
LocationPatentsSpan
Ohmiya, JP21989–1993
Omiya, JP21989–1992
Yokohama, JP12001
Oyama, JP11998
Tochigi, JP11988