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Inventor

Shutoku Watanabe

Inventor
Matsumoto, JP

Overview

6→
Patents
1977–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 6 as inventor

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

H04Nprimary
H04NPictorial communication, e.g. television43%
B41JTypewriters29%
B82YSpecific uses or applications of nanostructures14%
H03JTuning resonant circuits14%
PatentTitleYear
10,946,656Liquid ejection head and liquid ejection apparatus202110,906,311Liquid ejecting head, liquid ejecting apparatus, and manufacturing method thereof20215,907,364'Display device for information signals'19994,328,517'Channel selection apparatus for television receiver'19824,121,252'Automatic brightness limiter circuit'19784,031,547'Noise reducing circuit for video signals'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1999Patents assigned to HITACHI LTD (4)· patent assignee history
1977–1978Based in Ashiya, JP· patent location history
1982–1999Based in Yokohama, JP· patent location history
2021Patents assigned to SEIKO EPSON CORP (2)· patent assignee history
2021Based in Matsumoto, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD41977–1999
SEIKO EPSON CORP22021
Locations
LocationPatentsSpan
Matsumoto, JP22021
Yokohama, JP21982–1999
Ashiya, JP21977–1978