Inventor

YONEZAWA AKIHIRO

JP7 patents

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

TOSHIBA KK

3 patents

US4835442AMay 30, 1989

Lamp for generating ultraviolet radiation

TOSHIBA KK30 citations90

US4929869AMay 29, 1990

High intensity discharge lamp containing iron and silver in the arc tube filling

TOSHIBA KK12 citations72

US4800321AJan 24, 1989

High pressure sodium lamp

TOSHIBA KK1 citations44

TOSHIBA LIGHTING & TECHNOLOGY

2 patents

US5668440ASep 16, 1997

Nitride layer for discharge lamps

TOSHIBA LIGHTING & TECHNOLOGY19 citations91

US5187413AFeb 16, 1993

Low pressure discharge lamp apparatus

TOSHIBA LIGHTING & TECHNOLOGY16 citations70

TOKYO SHIBAURA ELECTRIC CO

1 patent

US4419602ADec 6, 1983

Electric lamp

TOKYO SHIBAURA ELECTRIC CO7 citations67

OMRON TATEISI ELECTRONICS CO

1 patent

US11054879B2Jul 6, 2021

Safety controller

OMRON TATEISI ELECTRONICS CO0 citations49