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Inventor

Eiju Watanabe

Inventor
Tokyo, JP

Overview

3→
Patents
1991–2020
Patent span
Human necessities
Primary field (CPC A)

Patents· 3 as inventor

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

A61Bprimary
A61BDiagnosis100%
PatentTitleYear
10,835,169Brain function index computing device and brain function index computing method20207,463,916'Optical measurement apparatus for living body'20085,050,608'System for indicating a position to be operated in a patient\'s body'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991Patents assigned to MEDIRAND INC (1)· patent assignee history
1991–2008Based in Tokyo, JP· patent location history
2008Patents assigned to HITACHI MEDICAL CORP (1)· patent assignee history
2020Patents assigned to HITACHI LTD (1)· patent assignee history
2020Patents assigned to UNIV JICHI MEDICAL (1)· patent assignee history
2020Based in Shimotsuke, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD12020
HITACHI MEDICAL CORP12008
MEDIRAND INC11991
UNIV JICHI MEDICAL12020
Locations
LocationPatentsSpan
Tokyo, JP21991–2008
Shimotsuke, JP12020