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Inventor

Hiroyuki Hamazumi

Inventor
Sagamihara, JP

Overview

3→
Patents
1996–2005
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.

H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication40%
H04NPictorial communication, e.g. television40%
H03JTuning resonant circuits20%
PatentTitleYear
6,879,630'Automatic equalization circuit and receiver circuit using the same'20056,490,010'AFC circuit, carrier recovery circuit and receiver device capable of regenerating a carrier reliably even at the time of low C/N ratio'20025,561,467'Receiver and channel compatible encoding/decoding system for high definition video'1996

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1996Patents assigned to JAPAN BROADCASTING CORP (1)· patent assignee history
1996Based in Tokyo, JP· patent location history
2002Based in Setagaya, JP· patent location history
2005Patents assigned to HITACHI INT ELECTRIC INC (1)· patent assignee history
2005Based in Sagamihara, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI INT ELECTRIC INC12005
JAPAN BROADCASTING CORP11996
Locations
LocationPatentsSpan
Sagamihara, JP12005
Setagaya, JP12002
Tokyo, JP11996