Inventor

Zenzo Nakamura

Inventor

Urawa, JP

Overview

31→

Patents

1977–1987

Patent span

Physics

Primary field (CPC G)

Patents· 31 as inventor

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

G03Bprimary

G03BApparatus or arrangements for taking photographs or for projecting or viewing them81%

H05BElectric heating16%

H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems3%

PatentTitleYear

4,669,850'Flash photographic exposure control system'1987 RE032425'Exposure control system for flash photography'1987 4,464,609'Flash lighting unit for a camera'1984 4,449,802'Adapter device'1984 4,382,666'Indicating device for computer type electronic flash apparatus'1983 4,315,679'Adapter device'1982 4,238,149'Flash camera system with daylight cutout control'1980 4,230,402'Flash exposure control system'1980 4,200,370'Camera for daylight and flash photography'1980 4,187,019'Flash light photographic systems'1980 4,181,416'Data printer for a camera'1980 4,168,891'Camera for daylight and flash photography'1979 4,162,426'Zone responsive, light-sensing circuit for controlling flash photographing'1979 4,127,325'Automatic exposure control camera'1978 4,126,877'Safety device for an exposure amount control equipment'1978 4,122,467'Camera with the shutter time control circuit for the flash light photography'1978 4,106,037'Flash device for use with a camera'1978 4,100,459'Indicator circuit for electronic flash apparatus'1978 4,095,141'Electronic flash device'1978 4,095,242'Matching device for flash light photographic device'1978 4,086,582'Exposure control device for a camera'1978 4,079,385'Camera system'1978 4,078,242'Flash light photographic systems'1978 4,068,245'Exposure control system for flash photography'1978 4,047,194'Camera system with means for automatically switching to flash operation'1977 4,034,387'Apparatus for taking photographs of an object in close proximity by means of flash'1977 4,021,824'Flash light photographic system for camera'1977 4,016,575'Exposure control system for flash photography'1977 4,012,665'Electronic flash device with capacitor discharge cut-off before full discharge'1977 4,007,398'Automatic control device for an electronic flash apparatus'1977 4,005,444'Exposure control system for flash photography'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1987Patents assigned to CANON KK (30)· patent assignee history

1977–1987Based in Urawa, JP· patent location history

1984–1987Based in Saitama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CANON KK	30	1977–1987

Locations

Location	Patents	Span
Urawa, JP	29	1977–1987
Saitama, JP	2	1984–1987