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Inventor

Keigo Iizawa

Inventor
Minowa-machi, JP

Overview

18→
Patents
2004–2018
Patent span
Electricity
Primary field (CPC H)

Patents· 18 as inventor

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

H03Hprimary
H03HImpedance networks, e.g. resonant circuits48%
B41JTypewriters30%
H03BGeneration of oscillations, directly or by frequency-changing, by circuits employing active elements which operate in a non-switching manner13%
H10NElectric solid-state devices not otherwise provided for9%
PatentTitleYear
10,112,399Liquid container, liquid consuming apparatus, liquid supply system and liquid container unit20189,994,033Liquid supply device and liquid ejecting apparatus20189,855,761'Ink tank unit, ink jet printer, and ink tank'20189,487,012'Ink tank unit, ink jet printer, and ink tank'20169,290,001'Liquid container, liquid consuming apparatus, liquid supply system and liquid container unit'20169,079,413'Liquid conatiner, liquid consuming apparatus, liquid supply system and liquid container unit'20158,928,432'Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic apparatus'20158,905,504'Liquid accommodation member, liquid accommodation member unit and liquid consumption device'20148,791,621'Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic apparatus'20148,598,766'Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic apparatus'20138,237,326'Surface acoustic wave device and surface acoustic wave oscillator'20128,084,918'Surface acoustic wave device and surface acoustic wave oscillator'20118,063,534'Surface acoustic wave device and surface acoustic wave oscillator'20117,352,104'Surface acoustic wave element, method of manufacturing the same and surface acoustic wave device'20086,946,932'Surface acoustic wave resonator with an interdigital transducer divided into regions having a different fixed pitch'20056,856,218'Surface acoustic wave device and communications apparatus using the same'20056,784,595'Method for adjusting the temperature-dependent property of a surface acoustic wave device and a surface acoustic device'20046,774,747'Surface acoustic wave device'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004–2018Patents assigned to SEIKO EPSON CORP (18)· patent assignee history
2004–2018Based in Nagano, JP· patent location history
2004–2008Based in Suwa, JP· patent location history
2005–2012Based in Minowa-machi, JP· patent location history
2011–2015Patents assigned to IIZAWA KEIGO (5)· patent assignee history
2013–2015Patents assigned to OWAKI TAKUYA (2)· patent assignee history
2013–2015Patents assigned to YAMANAKA KUNIHITO (2)· patent assignee history
2013Patents assigned to HANO KENICHI (1)· patent assignee history
2013–2015Based in Sakata, JP· patent location history
2014–2018Based in Shiojiri, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SEIKO EPSON CORP182004–2018
IIZAWA KEIGOself52011–2015
OWAKI TAKUYA22013–2015
YAMANAKA KUNIHITO22013–2015
HANO KENICHI12013
Locations
LocationPatentsSpan
Minowa-machi, JP52005–2012
Shiojiri, JP42014–2018
Nagano, JP42004–2018
Sakata, JP32013–2015
Suwa, JP22004–2008