LexDanaLexDanabeta
Inventor

Hiroshi Midorikawa

Inventor
Shiojiri, JP

Overview

3→
Patents
1989–2013
Patent span
Performing operations
Primary field (CPC B)

Patents· 3 as inventor

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

B41Jprimary
B41JTypewriters20%
E04HBuildings or like structures for particular purposes20%
F16FSprings20%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them20%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%
PatentTitleYear
8,439,508'Projector and projector system'20135,290,109'Electronic typewriter for printing of documents having a fixed format'19944,883,250'Vibration-proof and earthquake-immue mount system'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989Patents assigned to KAJIMA CORP (1)· patent assignee history
1989Patents assigned to KAYABA INDUSTRY CO LTD (1)· patent assignee history
1989Based in Kanagawa, JP· patent location history
1994–2013Patents assigned to SEIKO EPSON CORP (2)· patent assignee history
1994Based in Nagano, JP· patent location history
2013Patents assigned to ISHIKAWA TAKESHI (1)· patent assignee history
2013Patents assigned to KASUGA HIROFUMI (1)· patent assignee history
2013Based in Shiojiri, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SEIKO EPSON CORP21994–2013
ISHIKAWA TAKESHI12013
KAJIMA CORP11989
KASUGA HIROFUMI12013
KAYABA INDUSTRY CO LTD11989
Locations
LocationPatentsSpan
Shiojiri, JP12013
Nagano, JP11994
Kanagawa, JP11989