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Inventor

Hisaya Keida

Inventor
Chiba, JP

Overview

4→
Patents
1990–1996
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.

H03Kprimary
H03KPulse technique67%
G05FSystems for regulating electric or magnetic variables17%
G06FElectric digital data processing17%
PatentTitleYear
5,532,621'Output buffer circuit, input buffer circuit and bi-directional buffer circuit for plural voltage systems'19965,202,592'Programmable logic device'19935,003,202'Coincidence extendable programmable logic device'19914,963,770'Programmable logic device'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1996Patents assigned to KAWASAKI STEEL CO (4)· patent assignee history
1990–1996Based in Chiba, JP· patent location history
1991Based in Ichikawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KAWASAKI STEEL CO41990–1996
Locations
LocationPatentsSpan
Chiba, JP31990–1996
Ichikawa, JP11991