LexDanaLexDanabeta
Inventor

Keijiro Ishii

Inventor
Sagamihara, JP

Overview

2→
Patents
1984–1993
Patent span
Physics
Primary field (CPC G)

Patents· 2 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 them100%
PatentTitleYear
5,202,724'Microfilm camera'19934,453,682'Cartridge handling device for microfilm reader or the like'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–1993Patents assigned to MINOLTA CAMERA KK (2)· patent assignee history
1984Based in Yokohama, JP· patent location history
1993Based in Sagamihara, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MINOLTA CAMERA KK21984–1993
Locations
LocationPatentsSpan
Sagamihara, JP11993
Yokohama, JP11984