Inventor

Chisako Maeda

Inventor
Tokyo, JP

Overview

6→
Patents
1998–2018
Patent span
Electricity
Primary field (CPC H)

Patents· 6 as inventor

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

H03Hprimary
H03HImpedance networks, e.g. resonant circuits23%
H10NElectric solid-state devices not otherwise provided for23%
C22CAlloys8%
C22FChanging the physical structure of non-ferrous metals and non-ferrous alloys8%
H01BCables8%
H03BGeneration of oscillations, directly or by frequency-changing, by circuits employing active elements which operate in a non-switching manner8%
H03FAmplifiers8%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers8%
Y10TTechnical subjects covered by former us classification8%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2003Patents assigned to MITSUBISHI ELECTRIC CORP (5)· patent assignee history
1998–2003Based in Tokyo, JP· patent location history
2018Patents assigned to ITO TAKEFUMI (1)· patent assignee history
2018Patents assigned to KEMMOTSU TAKAYUKI (1)· patent assignee history
2018Patents assigned to MAEDA CHISAKO (1)· patent assignee history
2018Patents assigned to NGK INSULATORS LTD (1)· patent assignee history
2018Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBISHI ELECTRIC CORP51998–2003
ITO TAKEFUMI12018
KEMMOTSU TAKAYUKI12018
MAEDA CHISAKOself12018
NGK INSULATORS LTD12018
Locations
LocationPatentsSpan
Tokyo, JP51998–2003
Kanagawa, JP12018