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Inventor

Seiei Ohkoshi

Inventor
Yokohama, JP

Overview

3→
Patents
1981–1982
Patent span
Electricity
Primary field (CPC H)

Patents· 3 as inventor

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

G11Cprimary
G11CStatic stores20%
H03KPulse technique20%
H04LTransmission of digital information, e.g. telegraphic communication20%
H04MTelephonic communication20%
H04QSelecting20%
PatentTitleYear
4,346,472'Method and apparatus for eliminating double bit errosion in a differential phase shift keying system'19824,292,476'Speech channel switching networks suitable for use in combination with electronic key telephone sets'19814,288,862'Memory circuit'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981Patents assigned to NIPPON TELEGRAPH & TELEPHONE (2)· patent assignee history
1981–1982Based in Yokohama, JP· patent location history
1982Patents assigned to HITACHI LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON TELEGRAPH & TELEPHONE21981
HITACHI LTD11982
Locations
LocationPatentsSpan
Yokohama, JP31981–1982