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Inventor

Eitaro Oyama

Inventor
Kyoto, JP

Overview

5→
Patents
2001–2010
Patent span
Electricity
Primary field (CPC H)

Patents· 5 as inventor

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

H02Mprimary
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems44%
H02JElectric power networks11%
H03FAmplifiers11%
H10DInorganic electric semiconductor devices11%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
PatentTitleYear
7,755,340'Step-up switching regulator with soft start circuits'20106,954,056'Switching power supply unit and controller IC thereof'20056,919,713'Switching power supply unit'20056,538,907'Voltage drop DC-DC converter'20036,275,095'Semiconductor amplifier circuit'2001

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2001–2010Patents assigned to ROHM CO LTD (5)· patent assignee history
2001–2010Based in Kyoto, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ROHM CO LTD52001–2010
Locations
LocationPatentsSpan
Kyoto, JP52001–2010