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Inventor

Keiji Fukuzawa

Inventor
Chiba, JP

Overview

22→
Patents
1986–2010
Patent span
Electricity
Primary field (CPC H)

Patents· 22 as inventor

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

H01Qprimary
H01QAntennas, i.e. radio aerials41%
H04HBroadcast communication17%
H04NPictorial communication, e.g. television14%
G06FElectric digital data processing3%
G10LSpeech analysis techniques or speech synthesis3%
H01JElectric discharge tubes or discharge lamps3%
H01PWaveguides3%
H04BTransmission3%
H04LTransmission of digital information, e.g. telegraphic communication3%
H04WWireless communication networks3%
PatentTitleYear
7,779,442'Information distribution system'20107,760,148'Radio communication system and communication method therefor'20107,471,251'Radio communication system and communication method therefor'20087,263,713'Television signal distributor apparatus, receiver apparatus, television signal transmission system and method'20077,142,812'Wireless transmission system'20066,779,195'Signal processing apparatus and signal receiving apparatus'20046,252,556'Microwave planar array antenna'20016,046,545'Light source apparatus using coaxial waveguide'20005,933,807'Screen control apparatus and screen control method'19995,926,744'Receiving apparatus, receiving method, and terminal unit'19995,675,348'Feedome, primary radiator, and antenna for microwave'19975,670,902'Satellite broadcast receiving system and change-over divider for use in same'19975,565,805'Change-over divider for use in satellite broadcast receiving system'19965,438,340'Elliptical feedhorn and parabolic reflector with perpendicular major axes'19955,384,557'Polarization separator and waveguide-microstrip line mode transformer for microwave apparatus'19955,301,352'Satellite broadcast receiving system and change-over divider for use in same'19945,276,410'Circular to linear polarization converter'19945,087,920'Microwave antenna'19924,914,449'Microwave antenna structure with intergral radome and rear cover'19904,827,276'Microwave antenna'19894,792,810'Microwave antenna'19884,570,165'Adjustable loop and dipole antenna'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–2010Patents assigned to SONY CORP (20)· patent assignee history
1986Based in Matsudo, JP· patent location history
1988–2010Based in Chiba, JP· patent location history
1999Patents assigned to NITSUKO LTD (1)· patent assignee history
1999Based in Kanagawa, JP· patent location history
2000Patents assigned to FUSION LIGHTING INC (1)· patent assignee history
2006Patents assigned to SONY ELECTRONICS INC (1)· patent assignee history
2006Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SONY CORP201986–2010
FUSION LIGHTING INC12000
NITSUKO LTD11999
SONY ELECTRONICS INC12006
Locations
LocationPatentsSpan
Chiba, JP191988–2010
Tokyo, JP12006
Kanagawa, JP11999
Matsudo, JP11986