Inventor

Saburo Sasaki

Inventor

Tokyo, JP

Overview

13→

Patents

1988–2011

Patent span

Physics

Primary field (CPC G)

Patents· 13 as inventor

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

H04Nprimary

H04NPictorial communication, e.g. television30%

G02BOptical elements, systems or apparatus25%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them20%

G06FElectric digital data processing10%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation10%

H10DInorganic electric semiconductor devices5%

PatentTitleYear

7,889,153'Projection-type display device and software program'2011 7,176,890'Projection-type display device and software program'2007 6,657,671'Image input device and method with strobo-light control'2003 6,243,136'Image input device and image input system which controls timing of successive imaging operations'2001 5,392,159'Zoom lens device of two-lens group structure and driving device of varifocal lens of two-lens group structure'1995 5,299,031'Image sensor and optical reading unit using the same'1994 5,267,085'Zoom lens apparatus of two-lens group structure'1993 5,237,362'Varifocal lens'1993 4,878,081'Exposure control device for a camera'1989 4,874,957'Contact type image sensor'1989 4,862,203'Lens driving and shutter opening and closing device for a camera'1989 4,768,051'Electric driving device'1988 4,734,726'Apparatus for moving a lens'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–2007Patents assigned to RICOH KK (12)· patent assignee history

1988–2011Based in Tokyo, JP· patent location history

1989–1994Patents assigned to RICOH GEN ELECTRON RES INST (2)· patent assignee history

1989–1994Based in Sendai, JP· patent location history

2011Patents assigned to RICOH CO LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
RICOH KK	12	1988–2007
RICOH GEN ELECTRON RES INST	2	1989–1994
RICOH CO LTD	1	2011

Locations

Location	Patents	Span
Tokyo, JP	11	1988–2011
Sendai, JP	2	1989–1994