Inventor
SUGAWARA TSUKASA
JP17 patents
⚠️ This page may combine multiple inventors who share the name “SUGAWARA TSUKASA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOKYO OHKA KOGYO CO LTD
13 patentsUS9911955B2Mar 6, 2018
Method for producing porous polyimide film, porous polyimide film and separator using same
TOKYO OHKA KOGYO CO LTD3 citations72
US9601739B2Mar 21, 2017
Method for producing porous polyimide film, porous polyimide film and separator using same
TOKYO OHKA KOGYO CO LTD3 citations72
US10429738B2Oct 1, 2019
Filtration filter, filtration method, production method of purified liquid chemical product for lithography, and method of forming resist pattern
TOKYO OHKA KOGYO CO LTD2 citations65
US10189968B2Jan 29, 2019
Varnish for porous polyimide film production and method for producing porous polyimide film using same
TOKYO OHKA KOGYO CO LTD1 citations59
US10525418B2Jan 7, 2020
Purification method for purifying liquid, purification method for purifying silicon compound-containing liquid, method for producing silylating agent liquid, film forming material or diffusing agent composition, filter medium and filter device
TOKYO OHKA KOGYO CO LTD0 citations51
US11713383B2Aug 1, 2023
Method for producing porous film, method for producing composition for producing porous film, and porous film
TOKYO OHKA KOGYO CO LTD0 citations50
US11344848B2May 31, 2022
Porous film and method for producing same
TOKYO OHKA KOGYO CO LTD0 citations50
US10865286B2Dec 15, 2020
Method for manufacturing porous membrane
TOKYO OHKA KOGYO CO LTD0 citations50
US10763480B2Sep 1, 2020
Porous separator for secondary batteries and secondary battery using same
TOKYO OHKA KOGYO CO LTD0 citations50
US9683087B2Jun 20, 2017
Production method for porous polyimide resin film, porous polyimide resin film, and separator employing same
TOKYO OHKA KOGYO CO LTD0 citations50
US10177357B2Jan 8, 2019
Method for producing porous polyimide film
TOKYO OHKA KOGYO CO LTD0 citations47
US10576433B2Mar 3, 2020
Method for purifying liquid, method for producing chemical solution or cleaning solution, filter medium, and filter device
TOKYO OHKA KOGYO CO LTD0 citations46
US10576432B2Mar 3, 2020
Polyimide and/or polyamideimide porous body and method for manufacturing same, method for separation and/or adsorption, separation material, adsorption material, filter media, laminate, and filter device
TOKYO OHKA KOGYO CO LTD0 citations38
HITACHI HIGH TECH CORP
4 patentsUS7130026B2Oct 31, 2006
Stage control method, a stage control system, and a semiconductor manufacturing equipment
HITACHI HIGH TECH CORP4 citations62
US9627173B2Apr 18, 2017
Stage device and charged particle beam apparatus using the stage device
HITACHI HIGH TECH CORP0 citations51
US11343119B2May 24, 2022
Distributed control system and communication control method therefor
HITACHI HIGH TECH CORP0 citations47
US7102897B2Sep 5, 2006
Circuit board module, circuit board chassis and electromagnetic shielding plate therefor
HITACHI HIGH TECH CORP0 citations39