Inventor

SAKAI SHIGEFUMI

JP7 patents

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

SEMICONDUCTOR ENERGY LAB

2 patents

US5970384AOct 19, 1999

Methods of heat treating silicon oxide films by irradiating ultra-violet light

SEMICONDUCTOR ENERGY LAB95 citations97

US6635589B2Oct 21, 2003

Methods of heat treatment and heat treatment apparatus for silicon oxide films

SEMICONDUCTOR ENERGY LAB7 citations73

ALPS ELECTRIC CO LTD

2 patents

US7135749B2Nov 14, 2006

Pressure sensor

ALPS ELECTRIC CO LTD20 citations91

US7319581B2Jan 15, 2008

Capacitive pressure sensor

ALPS ELECTRIC CO LTD0 citations43

DUALITAS LTD

2 patents

US11480855B2Oct 25, 2022

Image display device

DUALITAS LTD2 citations70

US10983423B2Apr 20, 2021

Image display device

DUALITAS LTD2 citations70

KAO CORP

1 patent

US8017046B2Sep 13, 2011

Skin cosmetic composition

KAO CORP4 citations58