Inventor

Masahiro Sugiyama

Inventor

Yokohama, JP

Overview

1984–2005

Patent span

Electricity

Primary field (CPC H)

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

H01Jprimary

H01JElectric discharge tubes or discharge lamps20%

G21KHandling of particles or ionising radiation not otherwise provided for15%

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 systems10%

H05BElectric heating10%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications10%

A61BDiagnosis5%

A61CDentistry5%

F16JPistons5%

G01NInvestigating or analysing materials by determining their chemical or physical properties5%

H01RElectrically-conductive connections5%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1984Patents assigned to KEEPER KK (1)· patent assignee history

1984Based in Hiratsuka, JP· patent location history

1986–1987Patents assigned to TOSHIBA KK (2)· patent assignee history

1986–1988Based in Yokohama, JP· patent location history

1987–1988Patents assigned to TOKYO SHIBAURA ELECTRIC CO (2)· patent assignee history

1991Based in Kitakyushu, JP· patent location history

1994–2000Patents assigned to TOKYO ELECTRIC CO LTD (2)· patent assignee history

1994–2000Based in Gotenba, JP· patent location history

2003–2005Patents assigned to YAMATAKE CORP (2)· patent assignee history

2003–2005Based in Tokyo, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations