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Inventor

Ikuzo Okamoto

Inventor
Tamagawa-Mura, JP

Overview

5→
Patents
1979–1985
Patent span
Human necessities
Primary field (CPC A)

Patents· 5 as inventor

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

A61Bprimary
A61BDiagnosis80%
G01MTesting static or dynamic balance of machines or structures20%
PatentTitleYear
4,540,253'Method and device for measuring eye refraction errors'19854,486,080'Device for detecting blinking of an eye under examination'19844,432,617'Eye refractive error measuring device'19844,410,267'Hand-held lens meter'19834,173,398'Optical system for objective eye-examination'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1985Patents assigned to ASAHI OPTICAL CO LTD (5)· patent assignee history
1979–1984Based in Tamagawa-Mura, JP· patent location history
1984–1985Based in Saitama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ASAHI OPTICAL CO LTD51979–1985
Locations
LocationPatentsSpan
Tamagawa-Mura, JP31979–1984
Saitama, JP21984–1985