Inventor

Sadao Sekizawa

Inventor
Hitachi, JP

Overview

4→
Patents
1986–1993
Patent span
Physics
Primary field (CPC G)

Patents· 4 as inventor

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

G01Dprimary
G01DMeasuring not specially adapted for a specific variable57%
G01PMeasuring linear or angular speed, acceleration, deceleration, or shock29%
G11BInformation storage based on relative movement between record carrier and transducer14%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–1989Patents assigned to HITACHI LTD (3)· patent assignee history
1986–1993Based in Hitachi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD31986–1989
Locations
LocationPatentsSpan
Hitachi, JP41986–1993