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Inventor

Toshio Ishizaki

Inventor
Kobe, JP

Overview

104→
Patents
1992–2018
Patent span
Electricity
Primary field (CPC H)

Patents· 104 as inventor

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

H01Pprimary
H01PWaveguides45%
H03HImpedance networks, e.g. resonant circuits18%
Y10TTechnical subjects covered by former us classification8%
H04BTransmission5%
H03FAmplifiers4%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h103%
H05KPrinted circuits3%
H01GCapacitors2%
H01QAntennas, i.e. radio aerials2%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses1%
PatentTitleYear
9,905,904'Artificial dielectric resonator and artificial dielectric filter using the same'20189,673,500'Artificial dielectric resonator and artificial dielectric filter using the same'20179,385,409'Multi-mode resonator/filter comprised of first and second columnar central conductors disposed within a cylindrical exterior conductor'20168,558,622'Radio frequency power amplifier'20138,525,594'Radio frequency amplifier circuit'20138,451,073'Laminated RF device with vertical resonators having stack arrangement of laminated layers including dielectric layers'20138,334,733'Left-handed filter for use in mobile phone provided with wide band and improved propagation characteristics'20128,330,085'Spread-spectrum high-frequency heating device'20128,248,190'Resonator and filter using the same'20128,222,975'Transmission line resonator, high-frequency filter using the same, high-frequency module, and radio device'20127,911,350'Alcohol detection system'20117,629,862'Composite duplexer'20097,479,847'Filter using piezoelectric resonator'20097,324,493'3-frequency branching circuit, branching circuit and radio communication equipment'20087,274,570'Electronic component mounting board, electronic component module, method of manufacturing electronic component mounting board, and communications equipment'20077,224,240'Balanced high-frequency filter, antenna duplexer, balanced high-frequency circuit and communication apparatus'20077,176,768'Balanced high-frequency device and balanced high-frequency circuit using the same'20077,138,888'Filter using piezoelectric resonator'20067,127,215'Transmitting/receiving switch'20067,109,531'High frequency switch, two-band type high frequency switch, three-band type high frequency switch, and mobile communication equipment'20067,106,152'Dielectric resonator, dielectric filter, and method of supporting dielectric resonance element'20067,054,608'Multilayer electronic component and communication apparatus and method'20067,038,557'Antenna duplexer and mobile communication device using the same'20067,027,777'High frequency switch and high frequency radio communication apparatus'20066,995,630'High-frequency compound switch module and communication terminal using it'20066,995,636'In-band-flat-group-delay type dielectric filter and linearized amplifier using the same'20066,985,712'RF device and communication apparatus using the same'20066,975,271'Antenna switch module, all-in-one communication module, communication apparatus and method for manufacturing antenna switch module'20056,975,841'Diplexer, and high-frequency switch and antenna duplexer using the same'20056,965,284'Dielectric filter, antenna duplexer'20056,941,650'Method for manufacturing dielectric laminated device'20056,900,705'Balanced high-frequency device and balance-characteristics improving method and balanced high-frequency circuit using the same'20056,882,250'High-frequency device and communication apparatus'20056,835,968'High frequency switch, two-band type high frequency switch, three-band type high frequency switch, and mobile communication equipment'20046,822,534'Laminated electronic component, laminated duplexer and communication device'20046,809,611'Composite filter, antenna duplexer, and communication apparatus'20046,801,100'Inter-digital transducer, surface acoustic wave filter and communication apparatus using the same'20046,794,959'In-band-flat-group-delay type dielectric filter and linearized amplifier using the same'20046,784,759'Antenna duplexer and communication apparatus'20046,784,765'Multilayer ceramic device'20046,768,399'Laminated bandpass filter, high frequency radio device and laminated bandpass filter manufacturing method'20046,765,460'Dielectric laminated device including a buried electric conductive member to form a strip line and its method of manufacture'20046,759,916'High-frequency filter device, filter device combined to a transmit-receive antenna, and wireless apparatus using the same'20046,750,737'High frequency switch and radio communication apparatus with layered body for saw filter mounting'20046,747,528'Dielectric filter, antenna duplexer, and communications appliance'20046,710,683'Surface acoustic wave filter and communications apparatus using the same'20046,707,353'Dielectric filter'20046,608,534'Matching circuit chip, filter with matching circuit, duplexer and cellular phone'20036,608,533'Matching circuit chip, filter with matching circuit, duplexer and cellular phone'20036,603,372'Laminated notch filter and cellular phone using the same'20036,586,786'High frequency switch and mobile communication equipment'20036,577,205'High-frequency filter device, filter device combined to a transmit-receive antenna, and wireless apparatus using the same'20036,570,469'Multilayer ceramic device including two ceramic layers with multilayer circuit patterns that can support semiconductor and saw chips'20036,529,096'Dielectric filter, antenna duplexer, and communications appliance'20036,515,559'In-band-flat-group-delay type dielectric filter and linearized amplifier using the same'20036,510,607'Method for forming a dielectric laminated device'20036,456,172'Multilayered ceramic RF device'20026,445,266'Multilayer filter having varied dielectric constant regions'20026,414,572'Dielectric resonator having a frequency tuning member spirally engaged with the cavity'20026,359,531'Multilayer filter with electrode patterns connected on different side surfaces to side electrodes and input/output electrodes'20026,351,196'Surface acoustic wave filter and multistage surface acoustic wave filter'20026,348,845'Surface acoustic wave filter and multistage surface acoustic wave filter'20026,346,866'Dielectric laminated device and its manufacturing method'20026,340,953'Antenna device'20026,326,863'Matching circuit chip, filter with matching circuit, duplexer and cellular phone'20016,310,525'Dielectric laminated device and its manufacturing method'20016,304,156'Laminated dielectric antenna duplexer and a dielectric filter'20016,222,429'Dielectric resonator, dielectric notch filter, and dielectric filter with optimized resonator and cavity dimensions'20016,222,431'Balanced dielectric filter'20016,184,760'Half-wavelength resonator type high frequency filter'20016,177,853'Multilayer filter with electrode patterns connected on different side surfaces to side electrodes and input/output electrodes'20016,166,613'Voltage-controlled resonator, method of fabricating the same, method of tuning the same, and mobile communication apparatus'20006,150,903'Piezoelectric filter, its manufacturing method, and intermediate frequency filter'20006,147,571'Dual-band multilayer bandpass filter'20006,140,891'Dielectric laminated filter'20006,107,900'Dielectric resonator having a through hole mounting structure'20006,085,071'Antenna duplexer'20006,072,376'Filter with low-noise amplifier'20006,020,798'Dielectric laminated device and its manufacturing method'20006,020,799'Laminated dielectric antenna duplexer and a dielectric filter'20005,990,762'Surface acoustic wave filter and multistage filter with multiple inside busbar lead-out electrodes'19995,986,522'Piezoelectric filter of the ladder type'19995,973,579'Ladder type intermediate frequency filter'19995,932,950'Surface acoustic wave filter'19995,847,489'Piezoelectric device and a package'19985,719,539'Dielectric filter with multiple resonators'19985,714,919'Dielectric notch resonator and filter having preadjusted degree of coupling'19985,654,681'Laminated dielectric resonator and dielectric filter'19975,644,275'Laminated dielectric resonator and dielectric filter'19975,594,394'Antenna diversity switching device with switching circuits between the receiver terminal and each antenna'19975,589,724'Piezoelectric device and a package'19965,581,141'Surface acoustic wave filter'19965,479,141'Laminated dielectric resonator and dielectric filter'19955,475,350'Frequency tunable resonator including a varactor'19955,473,289'Temperature compensated crystal oscillator'19955,442,812'Antenna switching apparatus for selectively connecting antenna to transmitter or receiver'19955,400,001'Piezoelectric resonator and piezoelectric filter'19955,396,201'Dielectric filter having inter-resonator coupling including both magnetic and electric coupling'19955,371,477'Linear amplifier'19945,323,128'Dielectric filter having inter-resonator coupling including both magnetic and electric coupling'19945,319,324'Method of direct bonding of crystals and crystal devices'19945,274,388'Antenna device'19935,221,913'Dielectric resonator device with thin plate type dielectric heat-radiator'19935,166,649'Dielectric filters with a single through-hole'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2008Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (89)· patent assignee history
1992–2008Based in Kobe, JP· patent location history
1997–2013Based in Hyogo, JP· patent location history
2002Based in Hyougo, JP· patent location history
2009–2013Patents assigned to PANASONIC CORP (10)· patent assignee history
2012–2016Patents assigned to ISHIZAKI TOSHIO (8)· patent assignee history
2012Patents assigned to TAMURA MASAYA (3)· patent assignee history
2012–2013Patents assigned to UNO TAKASHI (3)· patent assignee history
2016Based in Shiga, JP· patent location history
2017–2018Based in Otsu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD891992–2008
PANASONIC CORP102009–2013
ISHIZAKI TOSHIOself82012–2016
TAMURA MASAYA32012
UNO TAKASHI32012–2013
Locations
LocationPatentsSpan
Kobe, JP731992–2008
Hyogo, JP261997–2013
Otsu, JP22017–2018
Shiga, JP12016
Hyougo, JP12002