Inventor

UGAJIN MAMORU

JP4 patents

⚠️ This page may combine multiple inventors who share the name “UGAJIN MAMORU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NIPPON TELEGRAPH & TELEPHONE

3 patents

US6871057B2Mar 22, 2005

Mixer circuit

NIPPON TELEGRAPH & TELEPHONE53 citations89

US6549074B2Apr 15, 2003

Transconductance amplifier, filter using the transconductance amplifier and tuning circuitry for transconductance amplifier in the filter

NIPPON TELEGRAPH & TELEPHONE33 citations89

US7545845B2Jun 9, 2009

Wireless communication system, wireless transmitter, wireless receiver, wireless communication method, wireless transmission method and wireless reception method

NIPPON TELEGRAPH & TELEPHONE0 citations39

NIPPON TELEPHONE AND TELEGRAPH

1 patent

US7430233B2Sep 30, 2008

Spread-spectrum demodulator

NIPPON TELEPHONE AND TELEGRAPH3 citations60