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Inventor

Tamao Fukushima

Inventor
Osaka, JP

Overview

2→
Patents
1985–2021
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.

G04Gprimary
G04GElectronic time-pieces17%
G06FElectric digital data processing17%
G10KSound-producing devices17%
H01HElectric switches17%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers17%
H05KPrinted circuits17%
PatentTitleYear
10,999,660Waterproof member and electronic device20214,496,813'Illumination type push button switch'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985Patents assigned to SUN DENGYOSHA CO LTD (1)· patent assignee history
1985Based in Tokyo, JP· patent location history
2021Patents assigned to NITTO DENKO CORP (1)· patent assignee history
2021Based in Osaka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NITTO DENKO CORP12021
SUN DENGYOSHA CO LTD11985
Locations
LocationPatentsSpan
Osaka, JP12021
Tokyo, JP11985