Inventor

OKA TADASHI

JP3 patents

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

HITACHI LTD

1 patent

US5859862AJan 12, 1999

Optical recording/reproducing apparatus having laser diode driver capable of a linear operation responsive to an input signal representative of a laser beam power varying depending on a magneto-optical disk-laser beam spot relative speed

HITACHI LTD66 citations93

SATOU TADAYUKI

1 patent

US8724288B2May 13, 2014

Electrostatic chuck and vacuum processing apparatus

SATOU TADAYUKI6 citations60

ULVAC INC

1 patent

US10276827B2Apr 30, 2019

Device structure and method of producing the same

ULVAC INC0 citations46