P

Inventor

SOTOAKA RYUJI

JP8 patents
⚠️ This page may combine multiple inventors who share the name “SOTOAKA RYUJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MITSUBISHI GAS CHEMICAL CO

3 patents
US5972862AOct 26, 1999

Cleaning liquid for semiconductor devices

MITSUBISHI GAS CHEMICAL CO234 citations96
US6843981B1Jan 18, 2005

Tooth bleaching compositions and methods of bleaching discolored tooth

MITSUBISHI GAS CHEMICAL CO37 citations87
US7892404B2Feb 22, 2011

Method for oxidizing substance and oxidation apparatus therefor

MITSUBISHI GAS CHEMICAL CO0 citations49

TOKYO ELECTRON LTD

2 patents
US6514352B2Feb 4, 2003

Cleaning method using an oxidizing agent, chelating agent and fluorine compound

TOKYO ELECTRON LTD43 citations91
US6875288B2Apr 5, 2005

Cleaning agent and cleaning method

TOKYO ELECTRON LTD6 citations61

YAGUCHI KAZUYOSHI

2 patents
US8883652B2Nov 11, 2014

Silicon etching liquid and etching method

YAGUCHI KAZUYOSHI2 citations54
US8562855B2Oct 22, 2013

Silicon etching liquid and etching method

YAGUCHI KAZUYOSHI1 citations44

MITSUBISHI GAS CHEMICALS CO IN

1 patent
US6265309B1Jul 24, 2001

Cleaning agent for use in producing semiconductor devices and process for producing semiconductor devices using the same

MITSUBISHI GAS CHEMICALS CO IN78 citations91