Inventor

HATAKEYAMA JUNICHI

JP3 patents

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

HITACHI LTD

2 patents

US4180083ADec 25, 1979

System for controlling flow rate in pipelines

HITACHI LTD39 citations90

US4036023AJul 19, 1977

Flood control system for a dam

HITACHI LTD11 citations67

HATAKEYAMA JUNICHI

1 patent

US8721089B2May 13, 2014

Image projection apparatus having plural interchangeable projection optical systems

HATAKEYAMA JUNICHI3 citations54