Inventor
OHHASHI TAKUYA
JP9 patents
⚠️ This page may combine multiple inventors who share the name “OHHASHI TAKUYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOKYO OHKA KOGYO CO LTD
8 patentsUS11898081B2Feb 13, 2024
Ruthenium-etching solution, method for manufacturing ruthenium-etching solution, method for processing object to be processed, and method for manufacturing ruthenium-containing wiring
TOKYO OHKA KOGYO CO LTD0 citations60
US11120994B2Sep 14, 2021
Etching solution, and method of producing semiconductor element
TOKYO OHKA KOGYO CO LTD0 citations60
US9133352B2Sep 15, 2015
Surface treatment agent and surface treatment method
TOKYO OHKA KOGYO CO LTD3 citations59
US10242875B2Mar 26, 2019
Impurity diffusion agent composition and method for manufacturing semiconductor substrate
TOKYO OHKA KOGYO CO LTD0 citations50
US9856382B2Jan 2, 2018
Homogeneous coating solution and production method thereof, light-absorbing layer of solar cell and production method thereof, and solar cell and production method thereof
TOKYO OHKA KOGYO CO LTD0 citations48
US9535330B2Jan 3, 2017
Stripping solution for photolithography and pattern formation method
TOKYO OHKA KOGYO CO LTD0 citations46
US8802610B2Aug 12, 2014
Cleaning liquid and anticorrosive agent comprising a mercapto compound and solvent
TOKYO OHKA KOGYO CO LTD0 citations39
US8354365B2Jan 15, 2013
Cleaning liquid for lithography and method for forming wiring
TOKYO OHKA KOGYO CO LTD0 citations38