LexDanaLexDanabeta
Inventor

Tetsuya Kamata

Inventor
Tokyo, JP

Overview

5→
Patents
1987–2004
Patent span
Electricity
Primary field (CPC H)

Patents· 5 as inventor

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

H04Rprimary
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers50%
LOC1450%
PatentTitleYear
D0497148'Digital video disc recorder'2004D0324389'Loudspeaker'19924,993,511'Speaker'1991D0289894'Speaker grille'1987D0289282'Speaker grille'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1992Patents assigned to PIONEER ELECTRONIC CORP (4)· patent assignee history
1987–2004Based in Tokyo, JP· patent location history
2004Patents assigned to PIONEER CORP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PIONEER ELECTRONIC CORP41987–1992
PIONEER CORP12004
Locations
LocationPatentsSpan
Tokyo, JP51987–2004