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Inventor

Toru Fujioka

Inventor
Kokubunji, JP

Overview

14→
Patents
1993–2013
Patent span
Electricity
Primary field (CPC H)

Patents· 14 as inventor

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

H03Fprimary
H03FAmplifiers26%
H04BTransmission19%
H10DInorganic electric semiconductor devices10%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1010%
G01NInvestigating or analysing materials by determining their chemical or physical properties6%
H01PWaveguides6%
H03GControl of amplification6%
B23BTurning3%
B27NManufacture by dry processes of articles, with or without organic binding agents, made from particles or fibres consisting of wood or other lignocellulosic or like organic material3%
D04HMaking textile fabrics, e.g. from fibres or filamentary material3%
PatentTitleYear
8,426,941'Semiconductor chip comprising a directional coupler having a specific main line and sub-line arrangement'20138,334,580'Semiconductor chip comprising a directional coupler having a specific main line and sub-line arrangement'20127,868,699'Semiconductor integrated circuit device'20117,756,494'RF power amplifier'20107,735,219'Method for machining a board'20107,411,457'Power amplifying semiconductor integrated circuit device for use in communication equipment'20086,865,399'Mobile telephone apparatus'20056,825,548'Semiconductor device'20046,535,069'High-frequency power amplifier module'20036,492,872'High frequency power amplifying module and wireless communication apparatus'20026,384,688'High-frequency power amplifier module'20026,366,788'Mobile telephone system'20025,273,640'Electrochemical gas sensor'19935,215,643'Electrochemical gas sensor'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993Based in Kadoma, JP· patent location history
2002–2003Patents assigned to HITACHI LTD (4)· patent assignee history
2002–2005Based in Kokubunji, JP· patent location history
2004–2010Patents assigned to RENESAS TECH CORP (4)· patent assignee history
2008–2013Based in Tokyo, JP· patent location history
2010Based in Osaka, JP· patent location history
2011–2013Patents assigned to RENESAS ELECTRONICS CORP (3)· patent assignee history
2012–2013Patents assigned to FUJIOKA TORU (2)· patent assignee history
2012–2013Patents assigned to GOTO SATOSHI (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD42002–2003
RENESAS TECH CORP42004–2010
RENESAS ELECTRONICS CORP32011–2013
FUJIOKA TORUself22012–2013
GOTO SATOSHI22012–2013
Locations
LocationPatentsSpan
Kokubunji, JP62002–2005
Tokyo, JP52008–2013
Kadoma, JP21993
Osaka, JP12010