Inventor

UMEZAWA MASAAKI

JP3 patents

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

OKI ELECTRIC IND CO LTD

2 patents

US5142573AAug 25, 1992

Telephone apparatus for radio communication with an adaptor

OKI ELECTRIC IND CO LTD119 citations92

US6208223B1Mar 27, 2001

Receiving filter of a saw separator with greater electrode interdigitated width in first stage parallel resonator

OKI ELECTRIC IND CO LTD25 citations91

FUJIKURA LTD

1 patent

US9798098B2Oct 24, 2017

Optical module

FUJIKURA LTD0 citations48