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Inventor

Hisanao Tosaka

Inventor
Tokyo, JP

Overview

6→
Patents
1998–2009
Patent span
Electricity
Primary field (CPC H)

Patents· 6 as inventor

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

H01Cprimary
H01CResistors60%
H01BCables20%
H05BElectric heating10%
Y10TTechnical subjects covered by former us classification10%
PatentTitleYear
7,573,008'PTC element'20097,414,515'PTC element'20087,368,069'PTC thermistor'20087,326,889'PTC element and production process thereof'20087,019,613'PTC thermistor body, PTC thermistor, method of making PTC thermistor body, and method of making PTC thermistor'20065,793,276'Organic PTC thermistor'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2009Patents assigned to TDK CORP (6)· patent assignee history
1998–2009Based in Tokyo, JP· patent location history
2006Based in Akita, JP· patent location history
2008Based in Nishikamo-gun, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TDK CORP61998–2009
Locations
LocationPatentsSpan
Tokyo, JP41998–2009
Nishikamo-gun, JP12008
Akita, JP12006