LexDanaLexDanabeta
Inventor

Kouichi Tomatsuri

Inventor
Katsuta, JP

Overview

4→
Patents
1976–1983
Patent span
Electricity
Primary field (CPC H)

Patents· 4 as inventor

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

H03Gprimary
H03GControl of amplification50%
G11BInformation storage based on relative movement between record carrier and transducer33%
H04NPictorial communication, e.g. television17%
PatentTitleYear
4,422,108'Tape recorder'19834,134,078'Gain control circuit'19794,101,841'Gain control circuit'19783,979,721'Pulse code modulation recording and reproducing apparatus'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1983Patents assigned to HITACHI LTD (4)· patent assignee history
1976Based in Yokohama, JP· patent location history
1978–1983Based in Katsuta, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD41976–1983
Locations
LocationPatentsSpan
Katsuta, JP31978–1983
Yokohama, JP11976