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Inventor

Yutaka Torii

Inventor
Yokohama, JP

Overview

5→
Patents
1990–1996
Patent span
Electricity
Primary field (CPC H)

Patents· 5 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 communication44%
A47BTables11%
E04BGeneral building constructions11%
G10KSound-producing devices11%
H04JMultiplex communication11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
PatentTitleYear
5,512,715'Sound absorber'19965,159,591'Packet communication method, packet communication device and packet switcher'19925,090,011'Packet congestion control method and packet switching equipment'19925,022,057'Bit synchronization circuit'19914,956,839'ATM switching system'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1992Patents assigned to HITACHI LTD (4)· patent assignee history
1990–1992Based in Yokohama, JP· patent location history
1991Patents assigned to HITACHI COMMUNICATION SYSTEM (1)· patent assignee history
1996Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (1)· patent assignee history
1996Based in Kadoma, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD41990–1992
HITACHI COMMUNICATION SYSTEM11991
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11996
Locations
LocationPatentsSpan
Yokohama, JP41990–1992
Kadoma, JP11996