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Inventor

Ryouji Sato

Inventor
Shimizu, JP

Overview

1→
Patents
1994
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 1 as inventor

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

F24Fprimary
F24FAir-conditioning50%
G10KSound-producing devices50%
PatentTitleYear
5,343,713'Active noise control apparatus for three-dimensional space'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994Patents assigned to HITACHI LTD (1)· patent assignee history
1994Based in Shimizu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD11994
Locations
LocationPatentsSpan
Shimizu, JP11994