Inventor

Masuo Ogihara

Inventor

Yotsukaido, JP

Overview

45→

Patents

1976–1998

Patent span

Physics

Primary field (CPC G)

Patents· 45 as inventor

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

G04Cprimary

G04CElectromechanical clocks or watches40%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them23%

G04BMechanically-driven clocks or watches18%

G04GElectronic time-pieces5%

H02KDynamo-electric machines5%

G07CTime or attendance registers3%

G01PMeasuring linear or angular speed, acceleration, deceleration, or shock2%

G01SRadio direction-finding2%

G02BOptical elements, systems or apparatus2%

PatentTitleYear

5,781,282'Distance measurement device'1998 5,359,376'Camera and film winding-up apparatus for camera'1994 5,218,401'Instant photocopying apparatus'1993 5,060,000'Motor-driven shutter for camera'1991 5,006,880'Programmable shutter'1991 4,881,096'Motor-driven shutter for camera'1989 4,782,353'Stepping motor-driven sector opening/closing device'1988 4,771,309'Strobe control circuit for flash photography'1988 4,755,835'Time recorder with printing wheels and impression hammer'1988 4,751,521'Time recorder with automatic correction for momentary discontinuation of power supply'1988 4,702,579'Automatic film sensitivity change-over device'1987 4,697,908'Program shutter'1987 4,696,560'Camera shutter'1987 4,693,583'Programmable shutter'1987 4,657,404'Alarm signaling time indicating mechanism for an alarm clock'1987 4,648,701'Control circuit for program shutter'1987 4,634,254'Electromagnetically actuated shutter for a camera'1987 4,444,511'Mode switching device in an electronic timepiece'1984 4,423,966'Alarm control system for alarm clock'1984 4,376,994'Time detecting device for alarm clock'1983 4,371,267'Time detecting device for alarm clock'1983 4,351,043'Time detecting switch for an alarm clock'1982 4,304,475'Warning system for automatic focusing camera'1981 4,298,972'Alarm signaling time detecting device for leaf type digital clock'1981 4,295,215'Second hand correction device for use in timepieces'1981 4,293,938'Alarm signaling time detecting device for digital clock'1981 4,287,586'Signaling time detecting device for leaf type digital clock'1981 4,270,195'Alarm setting indication device for digital clock'1981 4,251,878'Switching device for battery powered alarm clock'1981 4,247,931'Slip mechanism for a timepiece'1981 4,232,511'Time detecting device for a clock'1980 4,214,134'Time detecting switch for alarm clock'1980 4,212,155'Time detecting switch for clock'1980 4,209,969'Alarm clock'1980 4,167,848'Driving device for an electric timepiece'1979 4,152,613'Electromagnetic driving device'1979 4,127,984'Slip mechanism of clock'1978 4,104,859'Reversal preventing device of electric clock'1978 4,097,755'Construction of electromagnetic driving device'1978 4,084,403'Driving mechanism for a timepiece'1978 4,079,581'Alarm device for clocks'1978 4,045,627'Switching mechanism for alarming time detection in an alarming device'1977 4,037,400'Drive device for electric clock'1977 4,015,417'Alarm time setting notifying mechanism for a clock or the like'1977 3,996,734'Minute-interval alarming device for a clock or the like'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1987Patents assigned to SEIKO KOKI KK (29)· patent assignee history

1976–1994Based in Chiba, JP· patent location history

1978–1998Based in Yotsukaido, JP· patent location history

1980–1987Based in Shikawatashi, JP· patent location history

1981Patents assigned to SEIKO KOKI KABUSHKI KAISHA (1)· patent assignee history

1987–1994Patents assigned to SEIKOSHA KK (14)· patent assignee history

1998Patents assigned to SEIKO PRECISION KK (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SEIKO KOKI KK	29	1976–1987
SEIKOSHA KK	14	1987–1994
SEIKO KOKI KABUSHKI KAISHA	1	1981
SEIKO PRECISION KK	1	1998

Locations

Location	Patents	Span
Yotsukaido, JP	22	1978–1998
Shikawatashi, JP	12	1980–1987
Chiba, JP	11	1976–1994