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Inventor

Yasuhiro Tokunaga

Inventor
Tokyo, JP

Overview

6→
Patents
1993–2012
Patent span
Physics
Primary field (CPC G)

Patents· 6 as inventor

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

G11Cprimary
G11CStatic stores43%
G01KMeasuring temperature14%
G01RMeasuring electric variables14%
G06FElectric digital data processing14%
Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use14%
PatentTitleYear
8,281,158'Semiconductor integrated circuit'20127,649,373'Semiconductor integrated circuit with voltage drop detector'20106,896,408'Temperature detection from differences in off leak currents of NMOS and PMOS transistors on CPU chip'20056,195,771'Semiconductor device having semiconductor memory circuit to be tested, method of testing semiconductor memory circuit and read circuit for semiconductor memory circuit'20015,444,662'Dynamic random access memory with bit line equalizing means'19955,274,585'Semiconductor memory device'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–2005Patents assigned to OKI ELECTRIC IND CO LTD (4)· patent assignee history
1993–2012Based in Tokyo, JP· patent location history
2005Based in Kanagawa, JP· patent location history
2010Patents assigned to OKI SEMICONDUCTOR CO LTD (1)· patent assignee history
2012Patents assigned to LAPIS SEMICONDUCTOR CO LTD (1)· patent assignee history
2012Patents assigned to TOKUNAGA YASUHIRO (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
OKI ELECTRIC IND CO LTD41993–2005
LAPIS SEMICONDUCTOR CO LTD12012
OKI SEMICONDUCTOR CO LTD12010
TOKUNAGA YASUHIROself12012
Locations
LocationPatentsSpan
Tokyo, JP51993–2012
Kanagawa, JP12005