Inventor

Michio Hirohata

Inventor

Inagi, JP

Overview

1979–1999

Patent span

Physics

Primary field (CPC G)

Patents· 49 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 them86%

G02BOptical elements, systems or apparatus14%

PatentTitleYear

5,864,719'Optical apparatus'1999 5,771,415'Data imprinting device'1998 5,410,379'Camera using variable magnification photographic optical system unit'1995 5,285,232'Red-eye phenomenon preventing device'1994 5,250,972'Drop-in loading type camera'1993 D0329054'35 mm camera'1992 5,008,693'Camera'1991 5,005,038'Focal length changeable camera'1991 4,983,998'Flash device for camera'1991 D0308214'Camera'1990 D0306452'Camera'1990 4,811,060'Optical system shifting device for a camera'1989 4,725,864'Vari-focal camera'1988 4,724,450'Motorized camera'1988 D0293917'Camera'1988 4,601,563'Motor driven focal length changing device for a camera'1986 4,534,638'Exposure control device for camera'1985 4,508,442'Electromagnetically driven shutter camera having automatic focusing device'1985 4,505,567'Electromagnetically driven shutter with focus adjusting function'1985 4,496,227'Photographic operation control circuit for camera'1985 4,487,493'Electromagnetically driven shutter'1984 4,466,725'Electromagnetic drive device for camera'1984 4,466,723'Electromagnetic drive device'1984 4,458,996'Photographic operation control circuit for camera'1984 4,452,521'Camera having an electromagnetically driven shutter'1984 4,451,129'Camera having a plurality of built-in lenses'1984 4,420,237'Exposure control system'1983 4,415,252'Electromagnetically operated shutter'1983 4,410,249'Camera with electromagnetically operated shutter'1983 4,410,255'Electromagnetic drive device for electro-magnetically operated shutter'1983 4,401,378'Camera having automatic focus function and automatic exposure function'1983 4,396,267'Electromagnetic driving device for a camera'1983 4,390,262'Electromagnetically operated diaphragm shutter'1983 4,375,321'Exposure amount control device'1983 4,364,649'Film winding and lens control mechanism for automatically focusing camera'1982 4,357,087'Camera incorporated with a movable flash light device'1982 4,349,264'Electromagnetically driven shutter'1982 4,348,094'Rotor of electromagnetically driven device for exposure control'1982 4,348,092'Electromagnetically driven shutter'1982 4,324,471'Electromagnetic drive device for camera'1982 4,322,145'Shutter device for camera'1982 4,319,822'Electromagnetically operated shutter'1982 4,319,821'Shutter blades for camera'1982 4,306,788'Electromagnetically controlled shutter'1981 4,278,336'Operation detecting device for camera'1981 4,179,203'Camera equipped with data recording device'1979 4,168,891'Camera for daylight and flash photography'1979 4,153,355'Camera incorporated with a movable flash light device'1979 4,134,658'Shutter release system for a camera'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1999Patents assigned to CANON KK (49)· patent assignee history

1979–1990Based in Inagi, JP· patent location history

1979–1982Based in Kawasaki, JP· patent location history

1984–1991Based in Tokyo, JP· patent location history

1991–1998Based in Kanagawa, JP· patent location history

1992–1999Based in Yokohama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CANON KK	49	1979–1999

Locations

Location	Patents	Span
Inagi, JP	21	1979–1990
Tokyo, JP	15	1984–1991
Kawasaki, JP	5	1979–1982
Yokohama, JP	4	1992–1999
Kanagawa, JP	4	1991–1998