Process for purifying organic solvents
US-12521709-B2 · Jan 13, 2026 · US
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Ohba Kaoru patents
Ohba Kaoru is listed as an inventor on 21 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Ohba Kaoru |
| Total patents | 21 |
| First publication | Jan 10, 2019 |
| Latest publication | Jan 13, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Process for purifying organic solvents
US-2025186988-A1 · Jun 12, 2025 · US
Processes for purifying glycol ethers
US-2024150272-A1 · May 9, 2024 · US
Processes for purifying organic amines
US-2024083837-A1 · Mar 14, 2024 · US
Purification process for hydrophilic organic solvent
US-11759774-B2 · Sep 19, 2023 · US
Organic amine purification method
US-2023117989-A1 · Apr 20, 2023 · US
Ethyl cellulose as a dispersant for lithium ion battery cathode production
US-11581527-B2 · Feb 14, 2023 · US
Solvent systems for use in lithium ion battery production
US-11349115-B2 · May 31, 2022 · US
Ethyl Cellulose as a Dispersant for Lithium Ion Battery Cathode Production
US-2021242447-A1 · Aug 5, 2021 · US
Amide combinations for cleaning and stripping of electronic parts
US-11016392-B2 · May 25, 2021 · US
Recent patents
Latest publications not already listed above.
Solvent systems for synthesis of poly(amic acid) and polyimide polymers
US-10982047-B2 · Apr 20, 2021 · US
Solvent Systems for Use in Lithium Ion Battery Production
US-2021083266-A1 · Mar 18, 2021 · US
Purification process for hydrolysable organic solvent
US-10913058-B2 · Feb 9, 2021 · US
Sulfoxide/glycol ether based solvents for use in the electronics industry
US-10731114-B2 · Aug 4, 2020 · US
Amide Combinations for Cleaning and Stripping of Electronic Parts
US-2020150542-A1 · May 14, 2020 · US
DMPA-based solvent systems for the synthesis of poly (amic acid) and polyimide polymers
US-10487178-B2 · Nov 26, 2019 · US
Solvent Systems for Synthesis of Poly(Amic Acid) and Polyimide Polymers
US-2019218344-A1 · Jul 18, 2019 · US
Sulfoxide/Glycol Ether Based Solvents for Use in the Electronics Industry
US-2019211286-A1 · Jul 11, 2019 · US
DMPA-Based Solvent Systems for the Synthesis of Poly (Amic Acid) and Polyimide Polymers
US-2019202989-A1 · Jul 4, 2019 · US
Purification process for hydrophilic organic solvent
US-2019009266-A1 · Jan 10, 2019 · US
Purification process for hydrolysable organic solvent
US-2019009267-A1 · Jan 10, 2019 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Dow Global Technologies Llc | 21 |
| Dow Chemical Korea Ltd | 4 |
| Dow Chemical Korea Ltd | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| B01D15/363 | 7 |
| B01J47/04 | 7 |
| B01D15/362 | 7 |
| B01J41/07 | 5 |
| C07C67/56 | 5 |