LexDanaLexDanabeta
Inventor

Takuo Takenaka

Inventor
Kyoto, JP

Overview

2→
Patents
1991–1999
Patent span
Electricity
Primary field (CPC H)

Patents· 2 as inventor

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

H01Hprimary
H01HElectric switches50%
H10HInorganic light-emitting semiconductor devices having potential barriers50%
PatentTitleYear
5,973,284'Push button switch assembly with snap action movable bridging contact'19995,077,588'Multiple wavelength light emitting device'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991Patents assigned to SHINETSU HANDOTAI KK (1)· patent assignee history
1991Based in Annaka, JP· patent location history
1999Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (1)· patent assignee history
1999Based in Kyoto, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11999
SHINETSU HANDOTAI KK11991
Locations
LocationPatentsSpan
Kyoto, JP11999
Annaka, JP11991