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Inventor

Sadao Okudaira

Inventor
Tokyo, JP

Overview

22→
Patents
1976–2010
Patent span
Physics
Primary field (CPC G)

Patents· 22 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus95%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them5%
PatentTitleYear
7,755,851'Subminiature imaging optical system'20104,730,906'Bright wide-angle zoom lens'19884,702,568'Photographic lens with large aperture ratio'19874,652,931'Optical system for TTL automatic focusing video camera'19874,589,750'Adapter for connecting single-lens reflex camera lens to video camera'19864,556,295'Ultracompact telephoto lens'19854,523,814'Zoom lens'19854,491,395'Zoom lens system'19854,490,017'High-speed zoom lens'19844,460,251'Zoom lens focusing system'19844,412,725'Rear stop diaphragm zoom lens'19834,406,523'Compact wide-angle zoom lens'19834,359,270'Zoom lens'19824,330,181'Compact zoom lens'19824,293,197'Telephoto lens with small telephoto ratio'19814,251,132'Compact standard zoom lens'19814,241,981'Compact wide angle zoom lens'19804,240,700'Wide angle zoom lens having a high variation ratio'19804,185,893'Zoom lenses'19804,074,931'Variable focal length lens system'19783,976,367'Retrofocus type wide angle lens of low F-number'19763,966,306'Large aperture super wide angle lens'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1988Patents assigned to ASAHI OPTICAL CO LTD (20)· patent assignee history
1976–1982Based in Ranzan, JP· patent location history
1976–2010Based in Saitama, JP· patent location history
1980Patents assigned to ASAHI KOGAKU KK (1)· patent assignee history
1980Based in Ranzanmachi, JP· patent location history
1981Based in Banzan, JP· patent location history
1983–1988Based in Tokyo, JP· patent location history
2010Patents assigned to OKUDAIRA SAITEKI SYSTEM LAB (1)· patent assignee history
2010Patents assigned to SAMSUNG ELECTRO MECH (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ASAHI OPTICAL CO LTD201976–1988
ASAHI KOGAKU KK11980
OKUDAIRA SAITEKI SYSTEM LAB12010
SAMSUNG ELECTRO MECH12010
Locations
LocationPatentsSpan
Tokyo, JP101983–1988
Ranzan, JP61976–1982
Saitama, JP41976–2010
Banzan, JP11981
Ranzanmachi, JP11980