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Inventor

Ken Ikeda

Inventor
Tokyo, JP

Overview

8→
Patents
1989–2011
Patent span
Physics
Primary field (CPC G)

Patents· 8 as inventor

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

G01Sprimary
G01SRadio direction-finding21%
H04BTransmission14%
C30BSingle-crystal growth7%
G01CMeasuring distances, levels or bearings7%
G03GElectrography7%
G06FElectric digital data processing7%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes7%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses7%
H04NPictorial communication, e.g. television7%
H04WWireless communication networks7%
PatentTitleYear
8,024,622'Abnormality detection frequency set when it is indicated that abnormality will occur'20117,867,881'Method of manufacturing nitride semiconductor substrate'20117,249,110'Individual authentication method, individual authentication apparatus, accounting method, accounting apparatus'20075,689,525'Direct-sequence spread-spectrum communication system'19975,583,852'Wireless data communication system'19965,563,608'Position measuring system and method therefor'19965,081,462'Method of deriving phase of pseudo-random code signal in global positioning system receiver'19924,800,577'GPS receiver'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2007Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (6)· patent assignee history
1989Based in Musashino, JP· patent location history
1992–1997Based in Tokyo, JP· patent location history
2007Based in Machida, JP· patent location history
2011Patents assigned to FUJI XEROX CO LTD (1)· patent assignee history
2011Patents assigned to HITACHI CABLE (1)· patent assignee history
2011Based in Kanagawa, JP· patent location history
2011Based in Tsuchiura, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD61989–2007
FUJI XEROX CO LTD12011
HITACHI CABLE12011
Locations
LocationPatentsSpan
Tokyo, JP41992–1997
Kanagawa, JP12011
Tsuchiura, JP12011
Machida, JP12007
Musashino, JP11989