Inventor

MASUDA SUMIHISA

JP7 patents

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

SUMCO CORP

3 patents

US8952496B2Feb 10, 2015

Semiconductor wafer and method of producing same

SUMCO CORP4 citations69

US12406863B2Sep 2, 2025

Wafer separation apparatus and method, and method for manufacturing silicon wafer

SUMCO CORP0 citations54

US9631297B2Apr 25, 2017

Method of producing epitaxial silicon wafer and epitaxial silicon wafer

SUMCO CORP0 citations49

SUMITOMO METAL IND

2 patents

US6465328B1Oct 15, 2002

Semiconductor wafer manufacturing method

SUMITOMO METAL IND26 citations90

US6211088B1Apr 3, 2001

Manufacturing method for semiconductor gas-phase epitaxial wafer

SUMITOMO METAL IND7 citations72

MASUDA SUMIHISA

2 patents

US8772177B2Jul 8, 2014

Semiconductor wafer and method of producing the same

MASUDA SUMIHISA3 citations55

US9685315B2Jun 20, 2017

Method of producing epitaxial wafer and the epitaxial wafer having a highly flat rear surface

MASUDA SUMIHISA0 citations35