Inventor

HIRAIZUMI KAZUO

5 patents

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

ERMA OPTICAL WORKS

3 patents

US4469495ASep 4, 1984

Method and device for degassifying liquid

ERMA OPTICAL WORKS84 citations93

US4629561ADec 16, 1986

Liquid chromatograph with flow controller

ERMA OPTICAL WORKS43 citations90

US4680552AJul 14, 1987

Apparatus for measuring impurities in super-pure water without exposure to surrounding atmosphere

ERMA OPTICAL WORKS7 citations69

SHOWA DENKO KK

1 patent

US4126393ANov 21, 1978

High-sensitivity differential refractometer

SHOWA DENKO KK7 citations71

ERMA INC

1 patent

US4652364AMar 24, 1987

Apparatus for adjusting the concentration of a solution

ERMA INC6 citations60