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Inventor

Hiroyasu Nakasa

Inventor
Tokyo, JP

Overview

2→
Patents
1978–1982
Patent span
Physics
Primary field (CPC G)

Patents· 2 as inventor

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

E21Bprimary
E21BEarth or rock drilling33%
G01NInvestigating or analysing materials by determining their chemical or physical properties33%
G01SRadio direction-finding33%
PatentTitleYear
4,317,186'Device for determining the position of a sound source'19824,107,981'Method of estimating ground pressure'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978Patents assigned to CENTRAL RES INST ELECT (1)· patent assignee history
1978–1982Based in Tokyo, JP· patent location history
1982Patents assigned to NIHON ETL KK (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CENTRAL RES INST ELECT11978
NIHON ETL KK11982
Locations
LocationPatentsSpan
Tokyo, JP21978–1982