Inventor

NAKATSUGI KOICHI

JP4 patents

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

OKEN SEIKO CO LTD

2 patents

US7040876B2May 9, 2006

Valves for a diaphragm pump

OKEN SEIKO CO LTD26 citations90

US6843643B2Jan 18, 2005

Valve mounting arrangement in a diaphragm pump

OKEN SEIKO CO LTD30 citations90

YAMABIKO CORP

2 patents

US12097409B2Sep 24, 2024

Scattered object collection system

YAMABIKO CORP1 citations54

US12575486B2Mar 17, 2026

Robotic working apparatus

YAMABIKO CORP0 citations41