Inventor

Tatsuzo Ushiro

Inventor

Tokyo, JP

Overview

1983–1998

Patent span

Physics

Primary field (CPC G)

Patents· 28 as inventor

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

G11Bprimary

G11BInformation storage based on relative movement between record carrier and transducer45%

H02KDynamo-electric machines16%

H04NPictorial communication, e.g. television13%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%

F16CShafts5%

G01DMeasuring not specially adapted for a specific variable3%

G02BOptical elements, systems or apparatus3%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them3%

PatentTitleYear

5,808,841'Recording and/or reproducing apparatus having rotary drum unit'1998 5,793,561'Rotary drum assembly having dynamic-pressure generating mechanism between rotary shaft and bearing'1998 5,760,521'Motor having gear for transmitting torque and substrate with cut-out section between coils'1998 5,721,460'Capstan motor'1998 5,679,990'Motor'1997 5,502,607'Recording or reproducing apparatus'1996 5,355,264'Recording or reproducing apparatus'1994 5,335,129'Interchangeable compact tape cassette'1994 5,144,491'Apparatus with lens control device'1992 5,101,131'Brushless motor'1992 5,079,650'Information signal recording and reproducing apparatus with a mark signal and four kinds of pilot signals'1992 4,999,722'Multi-channel information signal reproducing apparatus for reproducing information signals from a tape-shaped record bearing medium having a plurality of areas which respectively extend longitudinally and parallel with each other'1991 4,902,924'Brushless motor'1990 4,899,236'Recording or reproducing apparatus using container mounted strip-like recording medium'1990 4,809,095'Recording and reproducing apparatus selectively using a plurality of kinds of recording mediums'1989 4,801,830'Brushless motor'1989 4,780,774'Rotary head type reproducing apparatus having a head shifter for accurately shifting the rotary head'1988 4,722,015'Recording and reproducing apparatus using a plurality of kinds of magnetic heads'1988 4,665,449'Rotating head type reproducing apparatus'1987 4,611,255'Rotating head assembly'1986 4,603,359'Rotary head device'1986 4,580,183'Information recording and/or reproducing apparatus'1986 4,511,932'Video recording camera'1985 4,492,982'Video camera image tube burn-in prevention apparatus'1985 4,408,239'Rotary magnetic head drum assembly for magnetically recording and/or reproducing device'1983 4,404,595'Lens unit for a camera'1983 4,400,743'Video camera and recorder'1983 4,386,376'Video camera'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–1998Patents assigned to CANON KK (28)· patent assignee history

1983–1990Based in Tokyo, JP· patent location history

1989–1998Based in Kawaguchi, JP· patent location history

1990–1992Patents assigned to CANON PRECISION INC (2)· patent assignee history

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

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CANON KK	28	1983–1998
CANON PRECISION INC	2	1990–1992

Locations

Location	Patents	Span
Tokyo, JP	14	1983–1990
Saitama, JP	8	1991–1998
Kawaguchi, JP	6	1989–1998