Inventor

OYAMA MASATOSHI

JP5 patents

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

HITACHI HIGH TECH CORP

2 patents

US7585776B2Sep 8, 2009

Dry etching method of insulating film

HITACHI HIGH TECH CORP2 citations60

US7354525B2Apr 8, 2008

Specimen surface processing apparatus and surface processing method

HITACHI HIGH TECH CORP0 citations40

AGC INC

1 patent

US11489990B2Nov 1, 2022

Optical element, optical system, and imaging apparatus

AGC INC0 citations48

HITACHI LTD

1 patent

US6960533B2Nov 1, 2005

Method of processing a sample surface having a masking material and an anti-reflective film using a plasma

HITACHI LTD1 citations43

TORAY INDUSTRIES

1 patent

US8343619B2Jan 1, 2013

Optical waveguide film

TORAY INDUSTRIES0 citations38