Inventor
CHO TOSHITSURA
JP11 patents
⚠️ This page may combine multiple inventors who share the name “CHO TOSHITSURA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TAMA CHEMICALS CO LTD
7 patentsUS5534649AJul 9, 1996
Process for preparing dialkyl carbonates
TAMA CHEMICALS CO LTD26 citations91
US5545309AAug 13, 1996
Method of processing organic quaternary ammonium hydroxide-containing waste liquid
TAMA CHEMICALS CO LTD18 citations80
US5439564AAug 8, 1995
Method of processing organic quaternary ammonium hydroxide-containing waste liquid
TAMA CHEMICALS CO LTD19 citations80
US5783609AJul 21, 1998
Process for recovering organoalkoxysilane from polyorganosiloxane
TAMA CHEMICALS CO LTD7 citations71
US4892625AJan 9, 1990
Method for producing high purity chemicals
TAMA CHEMICALS CO LTD14 citations71
US6315644B1Nov 13, 2001
Apparatus and process for supplying abrasives for use in the manufacture of semiconductors
TAMA CHEMICALS CO LTD10 citations65
US4806329AFeb 21, 1989
Method of producing granular synthetic silica
TAMA CHEMICALS CO LTD5 citations60
TOSHIBA KK
2 patentsUS6426294B1Jul 30, 2002
Copper-based metal polishing composition, method for manufacturing a semiconductor device, polishing composition, aluminum-based metal polishing composition, and tungsten-based metal polishing composition
TOSHIBA KK29 citations92
US6861010B2Mar 1, 2005
Copper-based metal polishing composition, method for manufacturing a semiconductor device, polishing composition, aluminum-based metal polishing composition, and tungsten-based metal polishing composition
TOSHIBA KK9 citations73