Inventor

Tatsumi Yamamoto

Inventor

Yokohama, JP

Overview

1999–2020

Patent span

Electricity

Primary field (CPC H)

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

F16Lprimary

F16LPipes20%

H01FMagnets20%

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 systems20%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%

Y10TTechnical subjects covered by former us classification20%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1999Patents assigned to SUGIYAMA SHOJI CO LTD (1)· patent assignee history

1999Based in Zama, JP· patent location history

2020Patents assigned to ADVANCED POWER TECH CORPORATION (1)· patent assignee history

2020Patents assigned to OMRON TATEISI ELECTRONICS CO (1)· patent assignee history

2020Based in Yokohama, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
ADVANCED POWER TECH CORPORATION	1	2020
OMRON TATEISI ELECTRONICS CO	1	2020
SUGIYAMA SHOJI CO LTD	1	1999

Locations

Location	Patents	Span
Yokohama, JP	1	2020
Zama, JP	1	1999