Inventor

Isao Utsumi

Inventor
Kanagawa, JP

Overview

7→
Patents
1987–2001
Patent span
Physics
Primary field (CPC G)

Patents· 7 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 them31%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests31%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables15%
G01TMeasurement of nuclear or x-radiation8%
G02CSpectacles8%
G06FElectric digital data processing8%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1990Patents assigned to FUJI PHOTO FILM CO LTD (5)· patent assignee history
1987–1990Based in Kanagawa, JP· patent location history
1988–1990Patents assigned to TOSHIBA KK (2)· patent assignee history
1990Patents assigned to OKI ELECTRIC IND CO LTD (1)· patent assignee history
1990Based in Tokyo, JP· patent location history
2001Patents assigned to UTSUMI OPTICAL PRODUCTS INC (1)· patent assignee history
2001Based in Nara, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FUJI PHOTO FILM CO LTD51987–1990
TOSHIBA KK21988–1990
OKI ELECTRIC IND CO LTD11990
UTSUMI OPTICAL PRODUCTS INC12001
Locations
LocationPatentsSpan
Kanagawa, JP51987–1990
Nara, JP12001
Tokyo, JP11990