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Inventor

Eiji Okada

Inventor
Tokyo, JP

Overview

31→
Patents
1979–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 31 as inventor

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

H02Gprimary
H02GInstallation of electric cables or lines, or of combined optical and electric cables or lines9%
A61CDentistry6%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for4%
F04BPositive-displacement machines for liquids4%
H03FAmplifiers4%
H04BTransmission4%
H04WWireless communication networks4%
H05KPrinted circuits4%
LOC044%
Y10TTechnical subjects covered by former us classification4%
PatentTitleYear
10,981,513Center console structure202110,122,159Electric connection box2018D0818273Switch box for battery-operated toothbrush20189,924,425'Wireless communications system and wireless communication device'20189,709,049'Piston drive device'20179,490,758'Power amplifier'20169,447,725'Compressor and vacuum machine'20169,397,615'Harmonic rejection power amplifier'20169,217,970'Heater for fixing device'20159,002,439'Blood vessel wall analyzing device and blood vessel wall analyzing method'2015D0701537'Compressor or vacuum machine'20148,339,236'Electric connection box'20128,208,590'Filter circuit, and receiver and electronic device using the same filter circuit'20128,002,064'Frame structure of automotive vehicle'20117,872,540'Oscillator device and transmitter module using same'20117,702,052'Radio-frequency receiver and integrated circuit employed for the receiver'20107,616,939'Receiver and electronic device using the same'20097,017,764'Electrical junction box'20066,546,640'Traverse linearity compensation method and rotational accuracy compensation method of measuring device'20036,233,578'Method and system for information retrieval'20016,090,479'Shape-recoverable resin foamed product'2000D0391553'Switch box'19985,709,249'Locking structure'19985,706,542'Electrically driven toothbrush'1998D0385702'Electric toothbrush'19975,617,602'Motor-driven toothbrush'1997D0375204'Electric toothbrush handle'19965,421,726'Tooth-brushing method by an electric toothbrush having a predetermined vibration frequency'1995D0307491'Combined electric shaver and cap therefor'1990D0289576'Vacuum cleaner'1987D0251441'Steam massager'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–2011Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (3)· patent assignee history
1990–2018Patents assigned to OKADA EIJI (8)· patent assignee history
1995–2018Based in Tokyo, JP· patent location history
1998–2018Patents assigned to YAZAKI CORP (4)· patent assignee history
1998–2021Based in Hiroshima, JP· patent location history
2009–2018Patents assigned to PANASONIC CORP (6)· patent assignee history
2009–2018Based in Osaka, JP· patent location history
2014–2017Patents assigned to SHINANO KENSHI CO (3)· patent assignee history
2014–2016Based in Nagano, JP· patent location history
2017Based in Ueda, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
OKADA EIJIself81990–2018
PANASONIC CORP62009–2018
YAZAKI CORP41998–2018
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD31979–2011
SHINANO KENSHI CO32014–2017
Locations
LocationPatentsSpan
Tokyo, JP71995–2018
Osaka, JP72009–2018
Hiroshima, JP61998–2021
Nagano, JP22014–2016
Ueda, JP12017