Inventor

HIRATA EIICHI

JP5 patents

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

SONY CORP

2 patents

US4837647AJun 6, 1989

Video cassette auto-changer

SONY CORP10 citations70

US5898657AApr 27, 1999

Disc driving apparatus having a base moving means with first and second engagement shafts engaging respective grooves on a cam member

SONY CORP1 citations47

SUMITOMO CHEMICAL CO

1 patent

US3969329AJul 13, 1976

Process for producing high molecular weight acrylamide water-soluble polymers by controlling the viscosity of the polymerization reaction medium with a water-miscible organic solvent

SUMITOMO CHEMICAL CO8 citations71

NIDEC SERVO CORP

1 patent

US9494161B2Nov 15, 2016

Motor

NIDEC SERVO CORP2 citations55

IDA TOHRU

1 patent

US8390003B2Mar 5, 2013

Electronic element wafer module with reduced warping

IDA TOHRU1 citations46