Inventor
ARAI YOJI
JP8 patents
⚠️ This page may combine multiple inventors who share the name “ARAI YOJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
6 patentsUS4622485ANov 11, 1986
Discharge lamp with neon gas in outer tube
HITACHI LTD22 citations81
US4587460AMay 6, 1986
High-pressure discharge lamp operating circuit
HITACHI LTD23 citations81
US4097781AJun 27, 1978
Atomic spectrum light source device
HITACHI LTD9 citations73
US4803406AFeb 7, 1989
High-pressure discharge lamp operating circuit
HITACHI LTD17 citations71
US4366418ADec 28, 1982
Spectral source, particularly for atomic absorption spectrometry
HITACHI LTD5 citations56
US4198589AApr 15, 1980
Spectral source, particularly for atomic absorption spectrometry
HITACHI LTD1 citations48