Inventor
HIRAOKA TOSHIHARU
JP9 patents
⚠️ This page may combine multiple inventors who share the name “HIRAOKA TOSHIHARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOYO TANSO CO
6 patentsUS6455160B1Sep 24, 2002
High purity C/C composite and manufacturing method thereof
TOYO TANSO CO30 citations92
US6136094AOct 24, 2000
Crucible for crystal pulling and method of manufacturing same
TOYO TANSO CO39 citations90
US6489027B1Dec 3, 2002
High purity carbon fiber reinforced carbon composites and manufacturing apparatus for use thereof
TOYO TANSO CO16 citations82
US6432538B1Aug 13, 2002
Carbon fiber reinforced carbon composite and useful as components for pulling single crystal apparatus
TOYO TANSO CO13 citations73
US10718569B2Jul 21, 2020
Heat treat furnace jig
TOYO TANSO CO2 citations65
US7198247B2Apr 3, 2007
Mandrel for producing quartz glass and production method for optical fiber mother material, optical fiber and quartz glass body using the same
TOYO TANSO CO2 citations50