Inventor

Tokuhiko Handa

Inventor

Tokyo, JP

Overview

1995–2016

Patent span

Electricity

Primary field (CPC H)

Patents· 24 as inventor

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

H01Cprimary

H01CResistors31%

G11BInformation storage based on relative movement between record carrier and transducer10%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%

Y10TTechnical subjects covered by former us classification8%

G01KMeasuring temperature6%

H01GCapacitors6%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution6%

H01BCables4%

H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy4%

H05BElectric heating4%

PatentTitleYear

9,425,482'Sulfide solid electrolyte material and electrochemical device'2016 7,943,849'Photoelectric conversion device'2011 7,414,515'PTC element'2008 7,341,679'Organic positive temperature coefficient thermistor and manufacturing method therefor'2008 7,326,889'PTC element and production process thereof'2008 7,304,562'Organic PTC thermistor and production'2007 7,245,479'Electrolytic capacitor and method of manufacturing the same'2007 7,241,402'Organic positive temperature coefficient thermistor'2007 7,218,506'Electrolytic capacitor and method of manufacturing the same'2007 6,842,103'Organic PTC thermistor'2005 6,778,062'Organic PTC thermistor and making method'2004 6,607,679'Organic PTC thermistor'2003 6,558,579'Organic positive temperature coefficient thermistor and making method'2003 6,452,476'Organic positive temperature coefficient thermistor'2002 6,299,801'Organic positive temperature coefficient thermistor'2001 6,143,206'Organic positive temperature coefficient thermistor and manufacturing method therefor'2000 6,090,314'Organic positive temperature coefficient thermistor'2000 5,982,271'Organic positive temperature coefficient thermistor'1999 5,945,034'Organic positive temperature coefficient thermistor'1999 5,523,140'Optical recording method and medium'1996 5,498,507'Optical recording media'1996 5,470,628'Optical recording medium'1995 5,418,030'Optical recording medium and method for making'1995 5,389,417'Optical recording medium'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–2016Patents assigned to TDK CORP (23)· patent assignee history

1995Patents assigned to ADK CORP (1)· patent assignee history

1995–1996Based in Nagano, JP· patent location history

1999Based in Chiba, JP· patent location history

2000–2016Based in Tokyo, JP· patent location history

2007–2008Based in Ichikawa, JP· patent location history

2007Based in Chuo-ku, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
TDK CORP	23	1995–2016
ADK CORP	1	1995

Locations

Location	Patents	Span
Tokyo, JP	13	2000–2016
Nagano, JP	5	1995–1996
Ichikawa, JP	3	2007–2008
Chiba, JP	2	1999
Chuo-ku, JP	1	2007