Inventor

KOYAMA YASUO

JP4 patents

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

ERMA OPTICAL WORKS

1 patent

US4680552AJul 14, 1987

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

ERMA OPTICAL WORKS7 citations69

SAITAMA BEE KEEPING CO LTD

1 patent

US4588134AMay 13, 1986

Method of treating pollen for pulverization thereof and extraction of essence therefrom

SAITAMA BEE KEEPING CO LTD7 citations61

KURASHIKI SYSTEM DESIGN CO LTD

1 patent

USD989914SJun 20, 2023

Mixing nozzle

KURASHIKI SYSTEM DESIGN CO LTD0 citations47

KOYAMA YASUO

1 patent

US9452482B2Sep 27, 2016

Electrical discharge machine

KOYAMA YASUO0 citations28