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Inventor

Kazuhito Tsuchida

Inventor
Kanagawa, JP

Overview

15→
Patents
1995–2021
Patent span
Physics
Primary field (CPC G)

Patents· 15 as inventor

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

G02Fprimary
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein15%
G09GArrangements or circuits for control of indicating devices using static means to present variable information15%
H05BElectric heating15%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications15%
G01RMeasuring electric variables4%
G05FSystems for regulating electric or magnetic variables4%
H03KPulse technique4%
B60LPropulsion of electrically-propelled vehicles2%
B61LGuiding railway traffic2%
G05BControl or regulating systems in general2%
PatentTitleYear
11,117,601Radio train control system and radio train control method20219,717,124'Light emitting element drive apparatus and portable apparatus using same'20179,148,927'Light emitting element drive apparatus and portable apparatus using same'20159,041,643'Light emitting element drive apparatus and portable apparatus using same'20159,014,866'Power supply device'20158,941,581'Light emitting element drive apparatus and portable apparatus using same'20158,654,059'Light emitting element drive apparatus and portable apparatus using same'20148,618,745'Light emitting element drive apparatus and portable apparatus using same'20137,365,718'Light emitting element drive apparatus and portable apparatus using the same'20087,102,396'Hysteresis detecting method, hysteresis detecting circuit and mobile device'20066,232,823'Voltage setting circuit in a semiconductor integrated circuit'20016,060,918'Start-up circuit'20005,936,288'Semiconductor integrated circuit device and low breakdown voltage zener diode'19995,585,731'Test circuit of current-voltage conversion amplifier'19965,463,330'CMOS input circuit'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–2021Patents assigned to MITSUBISHI ELECTRIC CORP (6)· patent assignee history
1995–2000Based in Itami, JP· patent location history
1996Based in Hyogo, JP· patent location history
1999–2021Based in Tokyo, JP· patent location history
2006–2017Patents assigned to SONY CORP (9)· patent assignee history
2006–2017Based in Kanagawa, JP· patent location history
2013–2015Patents assigned to SONY MOBILE COMM INC (5)· patent assignee history
2013–2015Patents assigned to TSUCHIDA KAZUHITO (3)· patent assignee history
2013–2014Patents assigned to SAITO JUNJI (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SONY CORP92006–2017
MITSUBISHI ELECTRIC CORP61995–2021
SONY MOBILE COMM INC52013–2015
TSUCHIDA KAZUHITOself32013–2015
SAITO JUNJI22013–2014
Locations
LocationPatentsSpan
Kanagawa, JP82006–2017
Tokyo, JP41999–2021
Itami, JP21995–2000
Hyogo, JP11996