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Inventor

Shengwei Dai

Inventor
CN

Overview

2→
Patents
2025–2026
Patent span
Electricity
Primary field (CPC H)

Patents· 2 as inventor

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

H01Pprimary
H01PWaveguides50%
H01QAntennas, i.e. radio aerials50%
PatentTitleYear
12,548,871Phase shifter for a wireless communication device comprising a substrate having a transmission line and a two wire bias line, where one wire has greater sheet resistance than the other wire202612,388,173Antenna2025

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2025Patents assigned to SHANGHAI TIANMA MICROELECTRONICS CO LTD (1)· patent assignee history
2025–2026Based in CN· patent location history
2026Patents assigned to CHENGDU TIANMA MICROELECTRONICS CO LTD (1)· patent assignee history
2026Patents assigned to SHANGHAI TIANMA MICRO ELECT CO (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHENGDU TIANMA MICROELECTRONICS CO LTD12026
SHANGHAI TIANMA MICRO ELECT CO12026
SHANGHAI TIANMA MICROELECTRONICS CO LTD12025
Locations
LocationPatentsSpan
CN22025–2026