Inventor

Susumu Sakakibara

Inventor

Sagamihara, JP

Overview

1983–1990

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.

G11Bprimary

G11BInformation storage based on relative movement between record carrier and transducer50%

G03GElectrography44%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%

PatentTitleYear

4,959,692'Developing device with retractable cutoff member'1990 4,803,513'Toner supplying device'1989 4,752,802'Magnetic brush type developing apparatus for development of electrostatic latent image'1988 4,676,192'Dry process developing apparatus'1987 4,623,943'Head positioning apparatus using a DC motor'1986 4,603,411'Periodical signal detection circuit within a variable window length'1986 4,572,102'Method of controlling replenishment of toners'1986 4,486,790'Drive circuit for feeding a reproducing element across a rotary medium having signals recorded thereon'1984 4,480,280'Rotary recording medium reproducing apparatus address search'1984 4,472,795'Periodical signal detection circuit within a variable window length'1984 4,447,517'Method of developing electrostatic latent images'1984 4,433,402'Reference signal detection circuit in a rotary recording medium reproducing apparatus'1984 4,408,312'Rotary recording medium reproducing apparatus with a tracking control defeating circuit for rapid track access'1983 4,402,070'Transfer control device for a reproducing transducer in a rotary recording medium reproducing apparatus'1983 4,376,813'Reversal development method of electrostatic latent image by the use of high-resistivity magnetic toner'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–1986Patents assigned to VICTOR COMPANY OF JAPAN (8)· patent assignee history

1983–1990Patents assigned to MINOLTA CAMERA KK (7)· patent assignee history

1983–1986Based in Sagamihara, JP· patent location history

1983–1987Based in Toyohashi, JP· patent location history

1988–1989Based in Toyokawa, JP· patent location history

1990Based in Osaka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
VICTOR COMPANY OF JAPAN	8	1983–1986
MINOLTA CAMERA KK	7	1983–1990

Locations

Location	Patents	Span
Sagamihara, JP	8	1983–1986
Toyohashi, JP	4	1983–1987
Toyokawa, JP	2	1988–1989
Osaka, JP	1	1990