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Inventor

Akira Ashida

Inventor
Yokohama, JP

Overview

15→
Patents
1976–1994
Patent span
Physics
Primary field (CPC G)

Patents· 15 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 them50%
H04LTransmission of digital information, e.g. telegraphic communication22%
B01DSeparation6%
G05BControl or regulating systems in general6%
G11BInformation storage based on relative movement between record carrier and transducer6%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
PatentTitleYear
5,300,197'Distillation apparatus with porous membrane and heat pump'19945,021,970'Method and apparatus for generating and applying common teaching data of robots'19914,538,119'Clock extraction circuit using an oscillator and phase-locked programmable divider'19854,531,223'Clock derivation circuits'19854,514,854'Discrimination circuit for received data'19854,426,714'Clock signal derivation system'19844,179,197'Sound motion picture projection system'19794,159,167'Sound motion picture projection apparatus'19794,148,569'Lens unit for motion picture projector and others'19794,148,567'Sound motion picture projection apparatus'19794,143,951'Cine-projector'19794,113,369'Motion picture projector'19784,066,963'Synchronization system of the cine-projector with the sound tape reproducer'19783,981,570'Motion picture projector device as audio-visual aid and audio-visual system using the same'19763,970,380'Film handling system employing a common cartridge'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1979Patents assigned to CANON KK (9)· patent assignee history
1976–1991Based in Tokyo, JP· patent location history
1978–1994Based in Yokohama, JP· patent location history
1979Based in Kanagawa, JP· patent location history
1984–1994Patents assigned to HITACHI LTD (6)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CANON KK91976–1979
HITACHI LTD61984–1994
Locations
LocationPatentsSpan
Yokohama, JP111978–1994
Tokyo, JP31976–1991
Kanagawa, JP11979