Inventor

OTSUKA RYOICHI

JP3 patents

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

UENO SEIYAKU OYO KENKYUJO KK

2 patents

US6451109B1Sep 17, 2002

Columnar crystals of 6-hydroxy-2-naphthoic acid and process for manufacturing the same

UENO SEIYAKU OYO KENKYUJO KK2 citations60

US7102028B2Sep 5, 2006

Method for producing 3,5-di-tert-butyl-4-hydroxybenzoic acid

UENO SEIYAKU OYO KENKYUJO KK0 citations42

KITA YUSUKE

1 patent

US8680325B2Mar 25, 2014

Process for preparing 2,5-dihydroxyterephthalic acid

KITA YUSUKE0 citations37