Inventor

Keisuke Maeda

Inventor
Sakai, JP

Overview

17→
Patents
1978–2021
Patent span
Physics
Primary field (CPC G)

Patents· 17 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 them44%
B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling7%
G02BOptical elements, systems or apparatus7%
H01LSemiconductor devices7%
H02NElectric machines not otherwise provided for7%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h107%
A63FCard, board, or roulette games4%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables4%
C08JWorking-up4%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1990Patents assigned to MINOLTA CAMERA KK (13)· patent assignee history
1978–1990Based in Osaka, JP· patent location history
1979–1988Based in Sakai, JP· patent location history
2019–2020Patents assigned to SUMITOMO OSAKA CEMENT CO LTD (3)· patent assignee history
2019–2020Based in Tokyo, JP· patent location history
2021Patents assigned to NINTENDO CO LTD (1)· patent assignee history
2021Based in Kyoto, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MINOLTA CAMERA KK131978–1990
SUMITOMO OSAKA CEMENT CO LTD32019–2020
NINTENDO CO LTD12021
Locations
LocationPatentsSpan
Sakai, JP71979–1988
Osaka, JP61978–1990
Tokyo, JP32019–2020
Kyoto, JP12021