Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12378127 | Silica sol having particle size distribution and production method therefor | Megumi ARAKI, Takeshi Nakada, Hikaru ONISHI, Masatoshi SUGISAWA, Jiahao Liu | 2025-08-05 |
| 11961636 | Silica-containing insulating composition | Masatoshi SUGISAWA | 2024-04-16 |
| 11708273 | Aluminum-containing silica sol dispersed in nitrogen-containing solvent and resin composition | Kazuya Kuroiwa, Hikaru ONISHI, Yuki Sugawara | 2023-07-25 |
| 11549019 | Inorganic oxide sol dispersed in hydrocarbon and production method therefor | Tomoya MAETA, Keiko Yoshitake | 2023-01-10 |
| 11177050 | Method for inhibiting occurrence of creeping electrical discharge | Tomohisa Ishida, Masahiro Kozako, Masayuki Hikita, Kyunghoon Jang, Takao Akahoshi | 2021-11-16 |
| 11168201 | Silica sol dispersed in ketone solvent and resin composition | Kazuya Kuroiwa, Masatoshi SUGISAWA | 2021-11-09 |
| 10239758 | Silica sol and method for producing silica sol | Keiko Yoshitake, Megumi Shimada, Ichitaro Kikunaga | 2019-03-26 |
| 9969867 | Silica sol and silica-containing epoxy resin composition | Megumi Shimada, Ichitaro Kikunaga | 2018-05-15 |
| 9527749 | Colloidal silica particles, process for producing the same, and organic solvent-dispersed silica sol, polymerizable compound-dispersed silica sol, and dicarboxylic anhydride-dispersed silica sol each obtained from the same | Keiko Yoshitake, Toshiaki Takeyama | 2016-12-27 |
| 9376322 | Process for producing colloidal silica particles | Keiko Yoshitake, Toshiaki Takeyama | 2016-06-28 |
| 9284197 | Colloidal silica particles, process for producing the same, and organic solvent-dispersed silica sol, polymerizable compound-dispersed silica sol, and dicarboxylic anhydride-dispersed silica sol each obtained from the same | Keiko Yoshitake, Toshiaki Takeyama | 2016-03-15 |
| 8344048 | Epoxy resin-forming liquid preparation containing inorganic particle | Toshiaki Takeyama | 2013-01-01 |
| 7999026 | Reactive monomer-dispersed silica sol and production method thereof, and curable composition and cured article thereof | Keiko Yoshitake | 2011-08-16 |
| 7737187 | Process for producing inorganic oxide organosol | Keiko Yoshitake, Yoshinari Koyama | 2010-06-15 |